Compare commits

..

2 Commits

Author SHA1 Message Date
Tullio Sebastiani
99b14c5652 filled the already checked activities
Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com>
2025-11-24 16:11:57 +01:00
Tullio Sebastiani
e377faa0e3 added incubation checklist
Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com>
2025-11-24 16:02:15 +01:00
90 changed files with 1788 additions and 12390 deletions

View File

@@ -1,47 +1,27 @@
# Type of change
## Type of change
- [ ] Refactor
- [ ] New feature
- [ ] Bug fix
- [ ] Optimization
# Description
<-- Provide a brief description of the changes made in this PR. -->
## Description
<!-- Provide a brief description of the changes made in this PR. -->
## Related Tickets & Documents
If no related issue, please create one and start the converasation on wants of
- Related Issue #:
- Closes #:
- Related Issue #
- Closes #
# Documentation
## Documentation
- [ ] **Is documentation needed for this update?**
If checked, a documentation PR must be created and merged in the [website repository](https://github.com/krkn-chaos/website/).
## Related Documentation PR (if applicable)
<-- Add the link to the corresponding documentation PR in the website repository -->
<!-- Add the link to the corresponding documentation PR in the website repository -->
# Checklist before requesting a review
[ ] Ensure the changes and proposed solution have been discussed in the relevant issue and have received acknowledgment from the community or maintainers. See [contributing guidelines](https://krkn-chaos.dev/docs/contribution-guidelines/)
See [testing your changes](https://krkn-chaos.dev/docs/developers-guide/testing-changes/) and run on any Kubernetes or OpenShift cluster to validate your changes
- [ ] I have performed a self-review of my code by running krkn and specific scenario
- [ ] If it is a core feature, I have added thorough unit tests with above 80% coverage
## Checklist before requesting a review
*REQUIRED*:
Description of combination of tests performed and output of run
```bash
python run_kraken.py
...
<---insert test results output--->
```
OR
```bash
python -m coverage run -a -m unittest discover -s tests -v
...
<---insert test results output--->
```
- [ ] I have performed a self-review of my code.
- [ ] If it is a core feature, I have added thorough tests.

View File

@@ -1,52 +0,0 @@
name: Manage Stale Issues and Pull Requests
on:
schedule:
# Run daily at 1:00 AM UTC
- cron: '0 1 * * *'
workflow_dispatch:
permissions:
issues: write
pull-requests: write
jobs:
stale:
name: Mark and Close Stale Issues and PRs
runs-on: ubuntu-latest
steps:
- name: Mark and close stale issues and PRs
uses: actions/stale@v9
with:
days-before-issue-stale: 60
days-before-issue-close: 14
stale-issue-label: 'stale'
stale-issue-message: |
This issue has been automatically marked as stale because it has not had any activity in the last 60 days.
It will be closed in 14 days if no further activity occurs.
If this issue is still relevant, please leave a comment or remove the stale label.
Thank you for your contributions to krkn!
close-issue-message: |
This issue has been automatically closed due to inactivity.
If you believe this issue is still relevant, please feel free to reopen it or create a new issue with updated information.
Thank you for your understanding!
close-issue-reason: 'not_planned'
days-before-pr-stale: 90
days-before-pr-close: 14
stale-pr-label: 'stale'
stale-pr-message: |
This pull request has been automatically marked as stale because it has not had any activity in the last 90 days.
It will be closed in 14 days if no further activity occurs.
If this PR is still relevant, please rebase it, address any pending reviews, or leave a comment.
Thank you for your contributions to krkn!
close-pr-message: |
This pull request has been automatically closed due to inactivity.
If you believe this PR is still relevant, please feel free to reopen it or create a new pull request with updated changes.
Thank you for your understanding!
# Exempt labels
exempt-issue-labels: 'bug,enhancement,good first issue'
exempt-pr-labels: 'pending discussions,hold'
remove-stale-when-updated: true

View File

@@ -32,14 +32,13 @@ jobs:
- name: Install Python
uses: actions/setup-python@v4
with:
python-version: '3.11'
python-version: '3.9'
architecture: 'x64'
- name: Install environment
run: |
sudo apt-get install build-essential python3-dev
pip install --upgrade pip
pip install -r requirements.txt
pip install coverage
- name: Deploy test workloads
run: |
@@ -68,39 +67,38 @@ jobs:
kubectl wait --for=condition=ready pod -l scenario=time-skew --timeout=300s
kubectl apply -f CI/templates/service_hijacking.yaml
kubectl wait --for=condition=ready pod -l "app.kubernetes.io/name=proxy" --timeout=300s
kubectl apply -f CI/legacy/scenarios/volume_scenario.yaml
kubectl wait --for=condition=ready pod kraken-test-pod -n kraken --timeout=300s
- name: Get Kind nodes
run: |
kubectl get nodes --show-labels=true
# Pull request only steps
- name: Run unit tests
if: github.event_name == 'pull_request'
run: python -m coverage run -a -m unittest discover -s tests -v
- name: Setup Functional Tests
- name: Setup Pull Request Functional Tests
if: |
github.event_name == 'pull_request'
run: |
yq -i '.kraken.port="8081"' CI/config/common_test_config.yaml
yq -i '.kraken.signal_address="0.0.0.0"' CI/config/common_test_config.yaml
yq -i '.kraken.performance_monitoring="localhost:9090"' CI/config/common_test_config.yaml
yq -i '.elastic.elastic_port=9200' CI/config/common_test_config.yaml
yq -i '.elastic.elastic_url="https://localhost"' CI/config/common_test_config.yaml
yq -i '.elastic.enable_elastic=False' CI/config/common_test_config.yaml
yq -i '.elastic.password="${{env.ELASTIC_PASSWORD}}"' CI/config/common_test_config.yaml
yq -i '.performance_monitoring.prometheus_url="http://localhost:9090"' CI/config/common_test_config.yaml
echo "test_service_hijacking" > ./CI/tests/functional_tests
echo "test_app_outages" >> ./CI/tests/functional_tests
echo "test_container" >> ./CI/tests/functional_tests
echo "test_cpu_hog" >> ./CI/tests/functional_tests
echo "test_customapp_pod" >> ./CI/tests/functional_tests
echo "test_io_hog" >> ./CI/tests/functional_tests
echo "test_memory_hog" >> ./CI/tests/functional_tests
echo "test_namespace" >> ./CI/tests/functional_tests
echo "test_net_chaos" >> ./CI/tests/functional_tests
echo "test_node" >> ./CI/tests/functional_tests
echo "test_container" >> ./CI/tests/functional_tests
echo "test_pod" >> ./CI/tests/functional_tests
echo "test_pod_error" >> ./CI/tests/functional_tests
echo "test_service_hijacking" >> ./CI/tests/functional_tests
echo "test_customapp_pod" >> ./CI/tests/functional_tests
echo "test_namespace" >> ./CI/tests/functional_tests
echo "test_net_chaos" >> ./CI/tests/functional_tests
echo "test_time" >> ./CI/tests/functional_tests
echo "test_cpu_hog" >> ./CI/tests/functional_tests
echo "test_memory_hog" >> ./CI/tests/functional_tests
echo "test_io_hog" >> ./CI/tests/functional_tests
echo "test_pod_network_filter" >> ./CI/tests/functional_tests
echo "test_pod_server" >> ./CI/tests/functional_tests
echo "test_time" >> ./CI/tests/functional_tests
# echo "test_pvc" >> ./CI/tests/functional_tests
# Push on main only steps + all other functional to collect coverage
# for the badge
@@ -114,9 +112,30 @@ jobs:
- name: Setup Post Merge Request Functional Tests
if: github.ref == 'refs/heads/main' && github.event_name == 'push'
run: |
yq -i '.kraken.port="8081"' CI/config/common_test_config.yaml
yq -i '.kraken.signal_address="0.0.0.0"' CI/config/common_test_config.yaml
yq -i '.kraken.performance_monitoring="localhost:9090"' CI/config/common_test_config.yaml
yq -i '.elastic.enable_elastic=False' CI/config/common_test_config.yaml
yq -i '.elastic.password="${{env.ELASTIC_PASSWORD}}"' CI/config/common_test_config.yaml
yq -i '.elastic.elastic_port=9200' CI/config/common_test_config.yaml
yq -i '.elastic.elastic_url="https://localhost"' CI/config/common_test_config.yaml
yq -i '.performance_monitoring.prometheus_url="http://localhost:9090"' CI/config/common_test_config.yaml
yq -i '.telemetry.username="${{secrets.TELEMETRY_USERNAME}}"' CI/config/common_test_config.yaml
yq -i '.telemetry.password="${{secrets.TELEMETRY_PASSWORD}}"' CI/config/common_test_config.yaml
echo "test_telemetry" >> ./CI/tests/functional_tests
echo "test_telemetry" > ./CI/tests/functional_tests
echo "test_service_hijacking" >> ./CI/tests/functional_tests
echo "test_app_outages" >> ./CI/tests/functional_tests
echo "test_container" >> ./CI/tests/functional_tests
echo "test_pod" >> ./CI/tests/functional_tests
echo "test_customapp_pod" >> ./CI/tests/functional_tests
echo "test_namespace" >> ./CI/tests/functional_tests
echo "test_net_chaos" >> ./CI/tests/functional_tests
echo "test_time" >> ./CI/tests/functional_tests
echo "test_cpu_hog" >> ./CI/tests/functional_tests
echo "test_memory_hog" >> ./CI/tests/functional_tests
echo "test_io_hog" >> ./CI/tests/functional_tests
echo "test_pod_network_filter" >> ./CI/tests/functional_tests
# Final common steps
- name: Run Functional tests
env:
@@ -182,7 +201,7 @@ jobs:
- name: Set up Python
uses: actions/setup-python@v4
with:
python-version: '3.11'
python-version: 3.9
- name: Copy badge on GitHub Page Repo
env:
COLOR: yellow

View File

@@ -2,10 +2,6 @@ kraken:
distribution: kubernetes # Distribution can be kubernetes or openshift.
kubeconfig_path: ~/.kube/config # Path to kubeconfig.
exit_on_failure: False # Exit when a post action scenario fails.
publish_kraken_status: True # Can be accessed at http://0.0.0.0:8081
signal_state: RUN # Will wait for the RUN signal when set to PAUSE before running the scenarios, refer docs/signal.md for more details
signal_address: 0.0.0.0 # Signal listening address
port: 8081 # Signal port
auto_rollback: True # Enable auto rollback for scenarios.
rollback_versions_directory: /tmp/kraken-rollback # Directory to store rollback version files.
chaos_scenarios: # List of policies/chaos scenarios to load.

View File

@@ -45,31 +45,6 @@ metadata:
name: kraken-test-pod
namespace: kraken
spec:
securityContext:
fsGroup: 1001
# initContainer to fix permissions on the mounted volume
initContainers:
- name: fix-permissions
image: 'quay.io/centos7/httpd-24-centos7:centos7'
command:
- sh
- -c
- |
echo "Setting up permissions for /home/kraken..."
# Create the directory if it doesn't exist
mkdir -p /home/kraken
# Set ownership to user 1001 and group 1001
chown -R 1001:1001 /home/kraken
# Set permissions to allow read/write
chmod -R 755 /home/kraken
rm -rf /home/kraken/*
echo "Permissions fixed. Current state:"
ls -la /home/kraken
volumeMounts:
- mountPath: "/home/kraken"
name: kraken-test-pv
securityContext:
runAsUser: 0 # Run as root to fix permissions
volumes:
- name: kraken-test-pv
persistentVolumeClaim:
@@ -77,13 +52,8 @@ spec:
containers:
- name: kraken-test-container
image: 'quay.io/centos7/httpd-24-centos7:centos7'
securityContext:
runAsUser: 1001
runAsNonRoot: true
allowPrivilegeEscalation: false
capabilities:
drop:
- ALL
volumeMounts:
- mountPath: "/home/kraken"
- mountPath: "/home/krake-dir/"
name: kraken-test-pv
securityContext:
privileged: true

View File

@@ -16,10 +16,8 @@ function functional_test_container_crash {
export post_config=""
envsubst < CI/config/common_test_config.yaml > CI/config/container_config.yaml
python3 -m coverage run -a run_kraken.py -c CI/config/container_config.yaml -d True
python3 -m coverage run -a run_kraken.py -c CI/config/container_config.yaml
echo "Container scenario test: Success"
kubectl get pods -n kube-system -l component=etcd
}
functional_test_container_crash

View File

@@ -11,7 +11,7 @@ function functional_test_customapp_pod_node_selector {
export post_config=""
envsubst < CI/config/common_test_config.yaml > CI/config/customapp_pod_config.yaml
python3 -m coverage run -a run_kraken.py -c CI/config/customapp_pod_config.yaml -d True
python3 -m coverage run -a run_kraken.py -c CI/config/customapp_pod_config.yaml
echo "Pod disruption with node_label_selector test: Success"
}

View File

@@ -1,18 +0,0 @@
uset -xeEo pipefail
source CI/tests/common.sh
trap error ERR
trap finish EXIT
function functional_test_node_stop_start {
export scenario_type="node_scenarios"
export scenario_file="scenarios/kind/node_scenarios_example.yml"
export post_config=""
envsubst < CI/config/common_test_config.yaml > CI/config/node_config.yaml
cat CI/config/node_config.yaml
python3 -m coverage run -a run_kraken.py -c CI/config/node_config.yaml
echo "Node Stop/Start scenario test: Success"
}
functional_test_node_stop_start

View File

@@ -10,11 +10,9 @@ function functional_test_pod_crash {
export scenario_file="scenarios/kind/pod_etcd.yml"
export post_config=""
envsubst < CI/config/common_test_config.yaml > CI/config/pod_config.yaml
cat CI/config/pod_config.yaml
python3 -m coverage run -a run_kraken.py -c CI/config/pod_config.yaml
echo "Pod disruption scenario test: Success"
date
kubectl get pods -n kube-system -l component=etcd -o yaml
}
functional_test_pod_crash

View File

@@ -1,28 +0,0 @@
source CI/tests/common.sh
trap error ERR
trap finish EXIT
function functional_test_pod_error {
export scenario_type="pod_disruption_scenarios"
export scenario_file="scenarios/kind/pod_etcd.yml"
export post_config=""
yq -i '.[0].config.kill=5' scenarios/kind/pod_etcd.yml
envsubst < CI/config/common_test_config.yaml > CI/config/pod_config.yaml
cat CI/config/pod_config.yaml
cat scenarios/kind/pod_etcd.yml
python3 -m coverage run -a run_kraken.py -c CI/config/pod_config.yaml
ret=$?
echo "\n\nret $ret"
if [[ $ret -ge 1 ]]; then
echo "Pod disruption error scenario test: Success"
else
echo "Pod disruption error scenario test: Failure"
exit 1
fi
}
functional_test_pod_error

View File

@@ -1,35 +0,0 @@
set -xeEo pipefail
source CI/tests/common.sh
trap error ERR
trap finish EXIT
function functional_test_pod_server {
export scenario_type="pod_disruption_scenarios"
export scenario_file="scenarios/kind/pod_etcd.yml"
export post_config=""
envsubst < CI/config/common_test_config.yaml > CI/config/pod_config.yaml
yq -i '.[0].config.kill=1' scenarios/kind/pod_etcd.yml
yq -i '.tunings.daemon_mode=True' CI/config/pod_config.yaml
cat CI/config/pod_config.yaml
python3 -m coverage run -a run_kraken.py -c CI/config/pod_config.yaml &
sleep 15
curl -X POST http:/0.0.0.0:8081/STOP
wait
yq -i '.kraken.signal_state="PAUSE"' CI/config/pod_config.yaml
yq -i '.tunings.daemon_mode=False' CI/config/pod_config.yaml
cat CI/config/pod_config.yaml
python3 -m coverage run -a run_kraken.py -c CI/config/pod_config.yaml &
sleep 5
curl -X POST http:/0.0.0.0:8081/RUN
wait
echo "Pod disruption with server scenario test: Success"
}
functional_test_pod_server

View File

@@ -1,18 +0,0 @@
set -xeEo pipefail
source CI/tests/common.sh
trap error ERR
trap finish EXIT
function functional_test_pvc_fill {
export scenario_type="pvc_scenarios"
export scenario_file="scenarios/kind/pvc_scenario.yaml"
export post_config=""
envsubst < CI/config/common_test_config.yaml > CI/config/pvc_config.yaml
cat CI/config/pvc_config.yaml
python3 -m coverage run -a run_kraken.py -c CI/config/pvc_config.yaml --debug True
echo "PVC Fill scenario test: Success"
}
functional_test_pvc_fill

View File

@@ -18,8 +18,9 @@ function functional_test_telemetry {
yq -i '.performance_monitoring.prometheus_url="http://localhost:9090"' CI/config/common_test_config.yaml
yq -i '.telemetry.run_tag=env(RUN_TAG)' CI/config/common_test_config.yaml
export scenario_type="pod_disruption_scenarios"
export scenario_file="scenarios/kind/pod_etcd.yml"
export scenario_type="hog_scenarios"
export scenario_file="scenarios/kube/cpu-hog.yml"
export post_config=""
envsubst < CI/config/common_test_config.yaml > CI/config/telemetry.yaml

273
CLAUDE.md
View File

@@ -1,273 +0,0 @@
# CLAUDE.md - Krkn Chaos Engineering Framework
## Project Overview
Krkn (Kraken) is a chaos engineering tool for Kubernetes/OpenShift clusters. It injects deliberate failures to validate cluster resilience. Plugin-based architecture with multi-cloud support (AWS, Azure, GCP, IBM Cloud, VMware, Alibaba, OpenStack).
## Repository Structure
```
krkn/
├── krkn/
│ ├── scenario_plugins/ # Chaos scenario plugins (pod, node, network, hogs, etc.)
│ ├── utils/ # Utility functions
│ ├── rollback/ # Rollback management
│ ├── prometheus/ # Prometheus integration
│ └── cerberus/ # Health monitoring
├── tests/ # Unit tests (unittest framework)
├── scenarios/ # Example scenario configs (openshift/, kube/, kind/)
├── config/ # Configuration files
└── CI/ # CI/CD test scripts
```
## Quick Start
```bash
# Setup (ALWAYS use virtual environment)
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt
# Run Krkn
python run_kraken.py --config config/config.yaml
# Note: Scenarios are specified in config.yaml under kraken.chaos_scenarios
# There is no --scenario flag; edit config/config.yaml to select scenarios
# Run tests
python -m unittest discover -s tests -v
python -m coverage run -a -m unittest discover -s tests -v
```
## Critical Requirements
### Python Environment
- **Python 3.9+** required
- **NEVER install packages globally** - always use virtual environment
- **CRITICAL**: `docker` must be <7.0 and `requests` must be <2.32 (Unix socket compatibility)
### Key Dependencies
- **krkn-lib** (5.1.13): Core library for Kubernetes/OpenShift operations
- **kubernetes** (34.1.0): Kubernetes Python client
- **docker** (<7.0), **requests** (<2.32): DO NOT upgrade without verifying compatibility
- Cloud SDKs: boto3 (AWS), azure-mgmt-* (Azure), google-cloud-compute (GCP), ibm_vpc (IBM), pyVmomi (VMware)
## Plugin Architecture (CRITICAL)
**Strictly enforced naming conventions:**
### Naming Rules
- **Module files**: Must end with `_scenario_plugin.py` and use snake_case
- Example: `pod_disruption_scenario_plugin.py`
- **Class names**: Must be CamelCase and end with `ScenarioPlugin`
- Example: `PodDisruptionScenarioPlugin`
- Must match module filename (snake_case ↔ CamelCase)
- **Directory structure**: Plugin dirs CANNOT contain "scenario" or "plugin"
- Location: `krkn/scenario_plugins/<plugin_name>/`
### Plugin Implementation
Every plugin MUST:
1. Extend `AbstractScenarioPlugin`
2. Implement `run()` method
3. Implement `get_scenario_types()` method
```python
from krkn.scenario_plugins import AbstractScenarioPlugin
class PodDisruptionScenarioPlugin(AbstractScenarioPlugin):
def run(self, config, scenarios_list, kubeconfig_path, wait_duration):
pass
def get_scenario_types(self):
return ["pod_scenarios", "pod_outage"]
```
### Creating a New Plugin
1. Create directory: `krkn/scenario_plugins/<plugin_name>/`
2. Create module: `<plugin_name>_scenario_plugin.py`
3. Create class: `<PluginName>ScenarioPlugin` extending `AbstractScenarioPlugin`
4. Implement `run()` and `get_scenario_types()`
5. Create unit test: `tests/test_<plugin_name>_scenario_plugin.py`
6. Add example scenario: `scenarios/<platform>/<scenario>.yaml`
**DO NOT**: Violate naming conventions (factory will reject), include "scenario"/"plugin" in directory names, create plugins without tests.
## Testing
### Unit Tests
```bash
# Run all tests
python -m unittest discover -s tests -v
# Specific test
python -m unittest tests.test_pod_disruption_scenario_plugin
# With coverage
python -m coverage run -a -m unittest discover -s tests -v
python -m coverage html
```
**Test requirements:**
- Naming: `test_<module>_scenario_plugin.py`
- Mock external dependencies (Kubernetes API, cloud providers)
- Test success, failure, and edge cases
- Keep tests isolated and independent
### Functional Tests
Located in `CI/tests/`. Can be run locally on a kind cluster with Prometheus and Elasticsearch set up.
**Setup for local testing:**
1. Deploy Prometheus and Elasticsearch on your kind cluster:
- Prometheus setup: https://krkn-chaos.dev/docs/developers-guide/testing-changes/#prometheus
- Elasticsearch setup: https://krkn-chaos.dev/docs/developers-guide/testing-changes/#elasticsearch
2. Or disable monitoring features in `config/config.yaml`:
```yaml
performance_monitoring:
enable_alerts: False
enable_metrics: False
check_critical_alerts: False
```
**Note:** Functional tests run automatically in CI with full monitoring enabled.
## Cloud Provider Implementations
Node chaos scenarios are cloud-specific. Each in `krkn/scenario_plugins/node_actions/<provider>_node_scenarios.py`:
- AWS, Azure, GCP, IBM Cloud, VMware, Alibaba, OpenStack, Bare Metal
Implement: stop, start, reboot, terminate instances.
**When modifying**: Maintain consistency with other providers, handle API errors, add logging, update tests.
### Adding Cloud Provider Support
1. Create: `krkn/scenario_plugins/node_actions/<provider>_node_scenarios.py`
2. Extend: `abstract_node_scenarios.AbstractNodeScenarios`
3. Implement: `stop_instances`, `start_instances`, `reboot_instances`, `terminate_instances`
4. Add SDK to `requirements.txt`
5. Create unit test with mocked SDK
6. Add example scenario: `scenarios/openshift/<provider>_node_scenarios.yml`
## Configuration
**Main config**: `config/config.yaml`
- `kraken`: Core settings
- `cerberus`: Health monitoring
- `performance_monitoring`: Prometheus
- `elastic`: Elasticsearch telemetry
**Scenario configs**: `scenarios/` directory
```yaml
- config:
scenario_type: <type> # Must match plugin's get_scenario_types()
```
## Code Style
- **Import order**: Standard library, third-party, local imports
- **Naming**: snake_case (functions/variables), CamelCase (classes)
- **Logging**: Use Python's `logging` module
- **Error handling**: Return appropriate exit codes
- **Docstrings**: Required for public functions/classes
## Exit Codes
Krkn uses specific exit codes to communicate execution status:
- `0`: Success - all scenarios passed, no critical alerts
- `1`: Scenario failure - one or more scenarios failed
- `2`: Critical alerts fired during execution
- `3+`: Health check failure (Cerberus monitoring detected issues)
**When implementing scenarios:**
- Return `0` on success
- Return `1` on scenario-specific failures
- Propagate health check failures appropriately
- Log exit code reasons clearly
## Container Support
Krkn can run inside a container. See `containers/` directory.
**Building custom image:**
```bash
cd containers
./compile_dockerfile.sh # Generates Dockerfile from template
docker build -t krkn:latest .
```
**Running containerized:**
```bash
docker run -v ~/.kube:/root/.kube:Z \
-v $(pwd)/config:/config:Z \
-v $(pwd)/scenarios:/scenarios:Z \
krkn:latest
```
## Git Workflow
- **NEVER commit directly to main**
- **NEVER use `--force` without approval**
- **ALWAYS create feature branches**: `git checkout -b feature/description`
- **ALWAYS run tests before pushing**
**Conventional commits**: `feat:`, `fix:`, `test:`, `docs:`, `refactor:`
```bash
git checkout main && git pull origin main
git checkout -b feature/your-feature-name
# Make changes, write tests
python -m unittest discover -s tests -v
git add <specific-files>
git commit -m "feat: description"
git push -u origin feature/your-feature-name
```
## Environment Variables
- `KUBECONFIG`: Path to kubeconfig
- `AWS_*`, `AZURE_*`, `GOOGLE_APPLICATION_CREDENTIALS`: Cloud credentials
- `PROMETHEUS_URL`, `ELASTIC_URL`, `ELASTIC_PASSWORD`: Monitoring config
**NEVER commit credentials or API keys.**
## Common Pitfalls
1. Missing virtual environment - always activate venv
2. Running functional tests without cluster setup
3. Ignoring exit codes
4. Modifying krkn-lib directly (it's a separate package)
5. Upgrading docker/requests beyond version constraints
## Before Writing Code
1. Check for existing implementations
2. Review existing plugins as examples
3. Maintain consistency with cloud provider patterns
4. Plan rollback logic
5. Write tests alongside code
6. Update documentation
## When Adding Dependencies
1. Check if functionality exists in krkn-lib or current dependencies
2. Verify compatibility with existing versions
3. Pin specific versions in `requirements.txt`
4. Check for security vulnerabilities
5. Test thoroughly for conflicts
## Common Development Tasks
### Modifying Existing Plugin
1. Read plugin code and corresponding test
2. Make changes
3. Update/add unit tests
4. Run: `python -m unittest tests.test_<plugin>_scenario_plugin`
### Writing Unit Tests
1. Create: `tests/test_<module>_scenario_plugin.py`
2. Import `unittest` and plugin class
3. Mock external dependencies
4. Test success, failure, and edge cases
5. Run: `python -m unittest tests.test_<module>_scenario_plugin`

270
INCUBATION_CHECKLIST.md Normal file
View File

@@ -0,0 +1,270 @@
# Review Project Moving Level Evaluation
[x] I have reviewed the TOC's [moving level readiness triage guide](https://github.com/cncf/toc/blob/main/operations/dd-toc-guide.md#initial-triageevaluation-prior-to-assignment), ensured the criteria for my project are met before opening this issue, and understand that unmet criteria will result in the project's application being closed.
# Krkn Incubation Application
v1.6
This template provides the project with a framework to inform the TOC of their conformance to the Incubation Level Criteria.
Project Repo(s): https://github.com/krkn-chaos/krkn
Project Site: https://www.krkn-chaos.dev
Sub-Projects:
- https://github.com/krkn-chaos/krknctl
- https://github.com/krkn-chaos/krkn-hub
Communication: [Slack](https://kubernetes.slack.com/archives/C05SFMHRWK1)
Project points of contacts:
- [Naga Ravi Elluri](mailto:nelluri@redhat.com)
- [Paige Patton](mailto:ppatton@redhat.com)
- [Tullio Sebastiani](mailto:tsebasti@redhat.com)
- [ ] (Post Incubation only) [Book a meeting with CNCF staff](http://project-meetings.cncf.io) to understand project benefits and event resources.
## Incubation Criteria Summary for Krkn
### Application Level Assertion
- [x] This project is currently Sandbox, accepted on 2023/12/19, and applying to Incubation.
- [x] This project is applying to join the CNCF at the Incubation level.
### Adoption Assertion
_The project has been adopted by the following organizations in a testing and integration or production capacity:_
| Organization | Since | Website | Use-Case |
|:-|:-|:-|:-|
| MarketAxess | 2024 | https://www.marketaxess.com/ | Kraken enables us to achieve our goal of increasing the reliability of our cloud products on Kubernetes. The tool allows us to automatically run various chaos scenarios, identify resilience and performance bottlenecks, and seamlessly restore the system to its original state once scenarios finish. These chaos scenarios include pod disruptions, node (EC2) outages, simulating availability zone (AZ) outages, and filling up storage spaces like EBS and EFS. The community is highly responsive to requests and works on expanding the tool's capabilities. MarketAxess actively contributes to the project, adding features such as the ability to leverage existing network ACLs and proposing several feature improvements to enhance test coverage. |
| Red Hat Openshift | 2020 | https://www.redhat.com/ | Kraken is a highly reliable chaos testing tool used to ensure the quality and resiliency of Red Hat Openshift. The engineering team runs all the test scenarios under Kraken on different cloud platforms on both self-managed and cloud services environments prior to the release of a new version of the product. The team also contributes to the Kraken project consistently which helps the test scenarios to keep up with the new features introduced to the product. Inclusion of this test coverage has contributed to gaining the trust of new and existing customers of the product. |
| IBM | 2023 | https://www.ibm.com/ | While working on AI for Chaos Testing at IBM Research, we closely collaborated with the Kraken (Krkn) team to advance intelligent chaos engineering. Our contributions included developing AI-enabled chaos injection strategies and integrating reinforcement learning (RL)-based fault search techniques into the Krkn tool, enabling it to identify and explore system vulnerabilities more efficiently. Kraken stands out as one of the most user-friendly and effective tools for chaos engineering, and the Kraken teams deep technical involvement played a crucial role in the success of this collaboration—helping bridge cutting-edge AI research with practical, real-world system reliability testing. |
## Application Process Principles
### Suggested
N/A
### Required
- [ ] **Engage with the domain specific TAG(s) to increase awareness through a presentation or completing a General Technical Review.**
- This was completed and occurred on DD-MMM-YYYY, and can be discovered at $LINK.
<!-- (Project assertion goes here) -->
- [x] **All project metadata and resources are [vendor-neutral](https://contribute.cncf.io/maintainers/community/vendor-neutrality/).**
<!-- (Project assertion goes here) -->
- [ ] **Review and acknowledgement of expectations for [Sandbox](https://sandbox.cncf.io) projects and requirements for moving forward through the CNCF Maturity levels.**
- Met during Project's application on DD-MMM-YYYY.
<!-- (Project assertion goes here) -->
- [ ] **Due Diligence Review.**
Completion of this due diligence document, resolution of concerns raised, and presented for public comment satisfies the Due Diligence Review criteria.
- [ ] **Additional documentation as appropriate for project type, e.g.: installation documentation, end user documentation, reference implementation and/or code samples.**
<!-- (Project assertion goes here) -->
## Governance and Maintainers
Note: this section may be augmented by the completion of a Governance Review from the Project Reviews subproject.
### Suggested
- [ ] **Governance has continuously been iterated upon by the project as a result of their experience applying it, with the governance history demonstrating evolution of maturity alongside the project's maturity evolution.**
<!-- (Project assertion goes here) -->
- [ ] **Clear and discoverable project governance documentation.**
<!-- (Project assertion goes here) -->
- [ ] **Governance is up to date with actual project activities, including any meetings, elections, leadership, or approval processes.**
<!-- (Project assertion goes here) -->
- [ ] **Governance clearly documents [vendor-neutrality](https://contribute.cncf.io/maintainers/community/vendor-neutrality/) of project direction.**
<!-- (Project assertion goes here) -->
- [ ] **Document how the project makes decisions on leadership, contribution acceptance, requests to the CNCF, and changes to governance or project goals.**
<!-- (Project assertion goes here) -->
- [ ] **Document how role, function-based members, or sub-teams are assigned, onboarded, and removed for specific teams (example: Security Response Committee).**
<!-- (Project assertion goes here) -->
- [ ] **Document a complete maintainer lifecycle process (including roles, onboarding, offboarding, and emeritus status).**
<!-- (Project assertion goes here) -->
- [ ] **Demonstrate usage of the maintainer lifecycle with outcomes, either through the addition or replacement of maintainers as project events have required.**
<!-- (Project assertion goes here) -->
- [ ] **If the project has subprojects: subproject leadership, contribution, maturity status documented, including add/remove process.**
<!-- (Project assertion goes here) -->
### Required
- [x] **Document complete list of current maintainers, including names, contact information, domain of responsibility, and affiliation.**
<!-- (Project assertion goes here) -->
- [x] **A number of active maintainers which is appropriate to the size and scope of the project.**
<!-- (Project assertion goes here) -->
- [x] **Code and Doc ownership in Github and elsewhere matches documented governance roles.**
<!-- (Project assertion goes here) -->
- [x] **Document adoption and adherence to the CNCF Code of Conduct or the project's CoC which is based off the CNCF CoC and not in conflict with it.**
<!-- (Project assertion goes here) -->
- [x] **CNCF Code of Conduct is cross-linked from other governance documents.**
<!-- (Project assertion goes here) -->
- [x] **All subprojects, if any, are listed.**
<!-- (Project assertion goes here) -->
## Contributors and Community
Note: this section may be augmented by the completion of a Governance Review from the Project Reviews subproject.
### Suggested
- [ ] **Contributor ladder with multiple roles for contributors.**
<!-- (Project assertion goes here) -->
### Required
- [x] **Clearly defined and discoverable process to submit issues or changes.**
<!-- (Project assertion goes here) -->
- [x] **Project must have, and document, at least one public communications channel for users and/or contributors.**
<!-- (Project assertion goes here) -->
- [ ] **List and document all project communication channels, including subprojects (mail list/slack/etc.). List any non-public communications channels and what their special purpose is.**
<!-- (Project assertion goes here) -->
- [x] **Up-to-date public meeting schedulers and/or integration with CNCF calendar.**
<!-- (Project assertion goes here) -->
- [ ] **Documentation of how to contribute, with increasing detail as the project matures.**
<!-- (Project assertion goes here) -->
- [x] **Demonstrate contributor activity and recruitment.**
<!-- (Project assertion goes here) -->
## Engineering Principles
### Suggested
- [ ] **Roadmap change process is documented.**
<!-- (Project assertion goes here) -->
- [ ] **History of regular, quality releases.**
<!-- (Project assertion goes here) -->
### Required
- [ ] **Document project goals and objectives that illustrate the projects differentiation in the Cloud Native landscape as well as outlines how this project fulfills an outstanding need and/or solves a problem differently. _This can also be satisfied by completing a General Technical Review._**
- _If applicable_ a General Technical Review was completed/updated on DD-MMM-YYYY, and can be discovered at $LINK.
<!-- (Project assertion goes here) -->
- [ ] **Document what the project does, and why it does it - including viable cloud native use cases. This can also be satisfied by completing a General Technical Review.**
<!-- (Project assertion goes here) -->
- [ ] **Document and maintain a public roadmap or other forward looking planning document or tracking mechanism.**
<!-- (Project assertion goes here) -->
- [ ] **Document overview of project architecture and software design that demonstrates viable cloud native use cases, as part of the project's documentation. _This can also be satisfied by completing a General Technical Review and capturing the output in the project's documentation._**
- _If applicable_ a General Technical Review was completed/updated on DD-MMM-YYYY, and can be discovered at $LINK.
<!-- (Project assertion goes here) -->
- [x] **Document the project's release process.**
<!-- (Project assertion goes here) -->
## Security
### Suggested
N/A
### Required
Note: this section may be augmented by a joint-assessment performed by TAG Security and Compliance.
- [x] **Clearly defined and discoverable process to report security issues.**
<!-- (Project assertion goes here) -->
- [x] **Enforcing Access Control Rules to secure the code base against attacks (Example: two factor authentication enforcement, and/or use of ACL tools.)**
<!-- (Project assertion goes here) -->
- [x] **Document assignment of security response roles and how reports are handled.**
<!-- (Project assertion goes here) -->
- [x] **Document [Security Self-Assessment](https://tag-security.cncf.io/community/assessments/guide/self-assessment/).**
<!-- (Project assertion goes here) -->
- [ ] **Achieve the Open Source Security Foundation (OpenSSF) Best Practices passing badge.**
<!-- (Project assertion goes here) -->
## Ecosystem
### Suggested
N/A
### Required
- [ ] **Publicly documented list of adopters, which may indicate their adoption level (dev/trialing, prod, etc.)**
<!-- (Project assertion goes here) -->
- [ ] **Used in appropriate capacity by at least 3 independent + indirect/direct adopters, (these are not required to be in the publicly documented list of adopters)**
<!-- (Project assertion goes here) -->
The project provided the TOC with a list of adopters for verification of use of the project at the level expected, i.e. production use for graduation, dev/test for incubation.
- [ ] **TOC verification of adopters.**
<!-- (Project assertion goes here) -->
Refer to the Adoption portion of this document.
- [ ] **Clearly documented integrations and/or compatibility with other CNCF projects as well as non-CNCF projects.**
<!-- (Project assertion goes here) -->
## Additional Information
<!-- Provide any additional information you feel is relevant for the TOC in conducting due diligence on this project. -->

View File

@@ -56,7 +56,7 @@ kraken:
cerberus:
cerberus_enabled: False # Enable it when cerberus is previously installed
cerberus_url: # When cerberus_enabled is set to True, provide the url where cerberus publishes go/no-go signal
check_application_routes: False # When enabled will look for application unavailability using the routes specified in the cerberus config and fails the run
check_applicaton_routes: False # When enabled will look for application unavailability using the routes specified in the cerberus config and fails the run
performance_monitoring:
prometheus_url: '' # The prometheus url/route is automatically obtained in case of OpenShift, please set it when the distribution is Kubernetes.

View File

@@ -13,7 +13,7 @@ kraken:
cerberus:
cerberus_enabled: False # Enable it when cerberus is previously installed
cerberus_url: # When cerberus_enabled is set to True, provide the url where cerberus publishes go/no-go signal
check_application_routes: False # When enabled will look for application unavailability using the routes specified in the cerberus config and fails the run
check_applicaton_routes: False # When enabled will look for application unavailability using the routes specified in the cerberus config and fails the run
performance_monitoring:
prometheus_url: # The prometheus url/route is automatically obtained in case of OpenShift, please set it when the distribution is Kubernetes.

View File

@@ -14,7 +14,7 @@ kraken:
cerberus:
cerberus_enabled: False # Enable it when cerberus is previously installed
cerberus_url: # When cerberus_enabled is set to True, provide the url where cerberus publishes go/no-go signal
check_application_routes: False # When enabled will look for application unavailability using the routes specified in the cerberus config and fails the run
check_applicaton_routes: False # When enabled will look for application unavailability using the routes specified in the cerberus config and fails the run
performance_monitoring:
prometheus_url: # The prometheus url/route is automatically obtained in case of OpenShift, please set it when the distribution is Kubernetes.

View File

@@ -35,7 +35,7 @@ kraken:
cerberus:
cerberus_enabled: True # Enable it when cerberus is previously installed
cerberus_url: http://0.0.0.0:8080 # When cerberus_enabled is set to True, provide the url where cerberus publishes go/no-go signal
check_application_routes: False # When enabled will look for application unavailability using the routes specified in the cerberus config and fails the run
check_applicaton_routes: False # When enabled will look for application unavailability using the routes specified in the cerberus config and fails the run
performance_monitoring:
deploy_dashboards: True # Install a mutable grafana and load the performance dashboards. Enable this only when running on OpenShift

View File

@@ -41,7 +41,7 @@ ENV KUBECONFIG /home/krkn/.kube/config
# This overwrites any existing configuration in /etc/yum.repos.d/kubernetes.repo
RUN dnf update && dnf install -y --setopt=install_weak_deps=False \
git python3.11 jq yq gettext wget which ipmitool openssh-server &&\
git python39 jq yq gettext wget which ipmitool openssh-server &&\
dnf clean all
# copy oc client binary from oc-build image
@@ -63,15 +63,15 @@ RUN if [ -n "$PR_NUMBER" ]; then git fetch origin pull/${PR_NUMBER}/head:pr-${PR
# if it is a TAG trigger checkout the tag
RUN if [ -n "$TAG" ]; then git checkout "$TAG";fi
RUN python3.11 -m ensurepip --upgrade --default-pip
RUN python3.11 -m pip install --upgrade pip setuptools==78.1.1
RUN python3.9 -m ensurepip --upgrade --default-pip
RUN python3.9 -m pip install --upgrade pip setuptools==78.1.1
# removes the the vulnerable versions of setuptools and pip
RUN rm -rf "$(pip cache dir)"
RUN rm -rf /tmp/*
RUN rm -rf /usr/local/lib/python3.11/ensurepip/_bundled
RUN pip3.11 install -r requirements.txt
RUN pip3.11 install jsonschema
RUN rm -rf /usr/local/lib/python3.9/ensurepip/_bundled
RUN pip3.9 install -r requirements.txt
RUN pip3.9 install jsonschema
LABEL krknctl.title.global="Krkn Base Image"
LABEL krknctl.description.global="This is the krkn base image."

View File

@@ -14,7 +14,7 @@ def get_status(config, start_time, end_time):
if config["cerberus"]["cerberus_enabled"]:
cerberus_url = config["cerberus"]["cerberus_url"]
check_application_routes = \
config["cerberus"]["check_application_routes"]
config["cerberus"]["check_applicaton_routes"]
if not cerberus_url:
logging.error(
"url where Cerberus publishes True/False signal "

View File

@@ -15,7 +15,7 @@ def invoke(command, timeout=None):
# Invokes a given command and returns the stdout
def invoke_no_exit(command, timeout=15):
def invoke_no_exit(command, timeout=None):
output = ""
try:
output = subprocess.check_output(command, shell=True, universal_newlines=True, timeout=timeout, stderr=subprocess.DEVNULL)

View File

@@ -146,7 +146,7 @@ class AbstractScenarioPlugin(ABC):
if scenario_telemetry.exit_status != 0:
failed_scenarios.append(scenario_config)
scenario_telemetries.append(scenario_telemetry)
logging.info(f"waiting {wait_duration} before running the next scenario")
logging.info(f"wating {wait_duration} before running the next scenario")
time.sleep(wait_duration)
return failed_scenarios, scenario_telemetries

View File

@@ -1,7 +1,6 @@
import logging
import random
import time
import traceback
from asyncio import Future
import yaml
from krkn_lib.k8s import KrknKubernetes
@@ -42,7 +41,6 @@ class ContainerScenarioPlugin(AbstractScenarioPlugin):
logging.info("ContainerScenarioPlugin failed with unrecovered containers")
return 1
except (RuntimeError, Exception) as e:
logging.error("Stack trace:\n%s", traceback.format_exc())
logging.error("ContainerScenarioPlugin exiting due to Exception %s" % e)
return 1
else:
@@ -52,6 +50,7 @@ class ContainerScenarioPlugin(AbstractScenarioPlugin):
return ["container_scenarios"]
def start_monitoring(self, kill_scenario: dict, lib_telemetry: KrknTelemetryOpenshift) -> Future:
namespace_pattern = f"^{kill_scenario['namespace']}$"
label_selector = kill_scenario["label_selector"]
recovery_time = kill_scenario["expected_recovery_time"]
@@ -233,5 +232,4 @@ class ContainerScenarioPlugin(AbstractScenarioPlugin):
timer += 5
logging.info("Waiting 5 seconds for containers to become ready")
time.sleep(5)
return killed_container_list

View File

@@ -53,7 +53,7 @@ class HogsScenarioPlugin(AbstractScenarioPlugin):
raise Exception("no available nodes to schedule workload")
if not has_selector:
available_nodes = [available_nodes[random.randint(0, len(available_nodes) - 1)]]
available_nodes = [available_nodes[random.randint(0, len(available_nodes))]]
if scenario_config.number_of_nodes and len(available_nodes) > scenario_config.number_of_nodes:
available_nodes = random.sample(available_nodes, scenario_config.number_of_nodes)

View File

@@ -55,8 +55,7 @@ class KubevirtVmOutageScenarioPlugin(AbstractScenarioPlugin):
pods_status.merge(single_pods_status)
scenario_telemetry.affected_pods = pods_status
if len(scenario_telemetry.affected_pods.unrecovered) > 0:
return 1
return 0
except Exception as e:
logging.error(f"KubeVirt VM Outage scenario failed: {e}")

View File

@@ -27,7 +27,7 @@ def get_status(config, start_time, end_time):
application_routes_status = True
if config["cerberus"]["cerberus_enabled"]:
cerberus_url = config["cerberus"]["cerberus_url"]
check_application_routes = config["cerberus"]["check_application_routes"]
check_application_routes = config["cerberus"]["check_applicaton_routes"]
if not cerberus_url:
logging.error("url where Cerberus publishes True/False signal is not provided.")
sys.exit(1)

View File

@@ -27,7 +27,7 @@ def get_status(config, start_time, end_time):
application_routes_status = True
if config["cerberus"]["cerberus_enabled"]:
cerberus_url = config["cerberus"]["cerberus_url"]
check_application_routes = config["cerberus"]["check_application_routes"]
check_application_routes = config["cerberus"]["check_applicaton_routes"]
if not cerberus_url:
logging.error(
"url where Cerberus publishes True/False signal is not provided.")

View File

@@ -18,20 +18,20 @@ class abstract_node_scenarios:
self.node_action_kube_check = node_action_kube_check
# Node scenario to start the node
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
pass
# Node scenario to stop the node
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
pass
# Node scenario to stop and then start the node
def node_stop_start_scenario(self, instance_kill_count, node, timeout, duration, poll_interval):
def node_stop_start_scenario(self, instance_kill_count, node, timeout, duration):
logging.info("Starting node_stop_start_scenario injection")
self.node_stop_scenario(instance_kill_count, node, timeout, poll_interval)
self.node_stop_scenario(instance_kill_count, node, timeout)
logging.info("Waiting for %s seconds before starting the node" % (duration))
time.sleep(duration)
self.node_start_scenario(instance_kill_count, node, timeout, poll_interval)
self.node_start_scenario(instance_kill_count, node, timeout)
self.affected_nodes_status.merge_affected_nodes()
logging.info("node_stop_start_scenario has been successfully injected!")
@@ -56,7 +56,7 @@ class abstract_node_scenarios:
logging.error("node_disk_detach_attach_scenario failed!")
# Node scenario to terminate the node
def node_termination_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_termination_scenario(self, instance_kill_count, node, timeout):
pass
# Node scenario to reboot the node
@@ -76,7 +76,7 @@ class abstract_node_scenarios:
nodeaction.wait_for_unknown_status(node, timeout, self.kubecli, affected_node)
logging.info("The kubelet of the node %s has been stopped" % (node))
logging.info("stop_kubelet_scenario has been successfully injected!")
logging.info("stop_kubelet_scenario has been successfuly injected!")
except Exception as e:
logging.error(
"Failed to stop the kubelet of the node. Encountered following "
@@ -108,7 +108,7 @@ class abstract_node_scenarios:
)
nodeaction.wait_for_ready_status(node, timeout, self.kubecli,affected_node)
logging.info("The kubelet of the node %s has been restarted" % (node))
logging.info("restart_kubelet_scenario has been successfully injected!")
logging.info("restart_kubelet_scenario has been successfuly injected!")
except Exception as e:
logging.error(
"Failed to restart the kubelet of the node. Encountered following "
@@ -128,7 +128,7 @@ class abstract_node_scenarios:
"oc debug node/" + node + " -- chroot /host "
"dd if=/dev/urandom of=/proc/sysrq-trigger"
)
logging.info("node_crash_scenario has been successfully injected!")
logging.info("node_crash_scenario has been successfuly injected!")
except Exception as e:
logging.error(
"Failed to crash the node. Encountered following exception: %s. "

View File

@@ -234,7 +234,7 @@ class alibaba_node_scenarios(abstract_node_scenarios):
# Node scenario to start the node
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -260,7 +260,7 @@ class alibaba_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to stop the node
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -286,7 +286,7 @@ class alibaba_node_scenarios(abstract_node_scenarios):
# Might need to stop and then release the instance
# Node scenario to terminate the node
def node_termination_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_termination_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:

View File

@@ -77,21 +77,10 @@ class AWS:
# until a successful state is reached. An error is returned after 40 failed checks
# Setting timeout for consistency with other cloud functions
# Wait until the node instance is running
def wait_until_running(self, instance_id, timeout=600, affected_node=None, poll_interval=15):
def wait_until_running(self, instance_id, timeout=600, affected_node=None):
try:
start_time = time.time()
if timeout > 0:
max_attempts = max(1, int(timeout / poll_interval))
else:
max_attempts = 40
self.boto_instance.wait_until_running(
InstanceIds=[instance_id],
WaiterConfig={
'Delay': poll_interval,
'MaxAttempts': max_attempts
}
)
self.boto_instance.wait_until_running(InstanceIds=[instance_id])
end_time = time.time()
if affected_node:
affected_node.set_affected_node_status("running", end_time - start_time)
@@ -104,21 +93,10 @@ class AWS:
return False
# Wait until the node instance is stopped
def wait_until_stopped(self, instance_id, timeout=600, affected_node= None, poll_interval=15):
def wait_until_stopped(self, instance_id, timeout=600, affected_node= None):
try:
start_time = time.time()
if timeout > 0:
max_attempts = max(1, int(timeout / poll_interval))
else:
max_attempts = 40
self.boto_instance.wait_until_stopped(
InstanceIds=[instance_id],
WaiterConfig={
'Delay': poll_interval,
'MaxAttempts': max_attempts
}
)
self.boto_instance.wait_until_stopped(InstanceIds=[instance_id])
end_time = time.time()
if affected_node:
affected_node.set_affected_node_status("stopped", end_time - start_time)
@@ -131,21 +109,10 @@ class AWS:
return False
# Wait until the node instance is terminated
def wait_until_terminated(self, instance_id, timeout=600, affected_node= None, poll_interval=15):
def wait_until_terminated(self, instance_id, timeout=600, affected_node= None):
try:
start_time = time.time()
if timeout > 0:
max_attempts = max(1, int(timeout / poll_interval))
else:
max_attempts = 40
self.boto_instance.wait_until_terminated(
InstanceIds=[instance_id],
WaiterConfig={
'Delay': poll_interval,
'MaxAttempts': max_attempts
}
)
self.boto_instance.wait_until_terminated(InstanceIds=[instance_id])
end_time = time.time()
if affected_node:
affected_node.set_affected_node_status("terminated", end_time - start_time)
@@ -300,7 +267,7 @@ class aws_node_scenarios(abstract_node_scenarios):
self.node_action_kube_check = node_action_kube_check
# Node scenario to start the node
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -311,7 +278,7 @@ class aws_node_scenarios(abstract_node_scenarios):
"Starting the node %s with instance ID: %s " % (node, instance_id)
)
self.aws.start_instances(instance_id)
self.aws.wait_until_running(instance_id, timeout=timeout, affected_node=affected_node, poll_interval=poll_interval)
self.aws.wait_until_running(instance_id, affected_node=affected_node)
if self.node_action_kube_check:
nodeaction.wait_for_ready_status(node, timeout, self.kubecli, affected_node)
logging.info(
@@ -329,7 +296,7 @@ class aws_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to stop the node
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -340,7 +307,7 @@ class aws_node_scenarios(abstract_node_scenarios):
"Stopping the node %s with instance ID: %s " % (node, instance_id)
)
self.aws.stop_instances(instance_id)
self.aws.wait_until_stopped(instance_id, timeout=timeout, affected_node=affected_node, poll_interval=poll_interval)
self.aws.wait_until_stopped(instance_id, affected_node=affected_node)
logging.info(
"Node with instance ID: %s is in stopped state" % (instance_id)
)
@@ -357,7 +324,7 @@ class aws_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to terminate the node
def node_termination_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_termination_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -369,7 +336,7 @@ class aws_node_scenarios(abstract_node_scenarios):
% (node, instance_id)
)
self.aws.terminate_instances(instance_id)
self.aws.wait_until_terminated(instance_id, timeout=timeout, affected_node=affected_node, poll_interval=poll_interval)
self.aws.wait_until_terminated(instance_id, affected_node=affected_node)
for _ in range(timeout):
if node not in self.kubecli.list_nodes():
break
@@ -379,7 +346,7 @@ class aws_node_scenarios(abstract_node_scenarios):
logging.info(
"Node with instance ID: %s has been terminated" % (instance_id)
)
logging.info("node_termination_scenario has been successfully injected!")
logging.info("node_termination_scenario has been successfuly injected!")
except Exception as e:
logging.error(
"Failed to terminate node instance. Encountered following exception:"
@@ -408,7 +375,7 @@ class aws_node_scenarios(abstract_node_scenarios):
logging.info(
"Node with instance ID: %s has been rebooted" % (instance_id)
)
logging.info("node_reboot_scenario has been successfully injected!")
logging.info("node_reboot_scenario has been successfuly injected!")
except Exception as e:
logging.error(
"Failed to reboot node instance. Encountered following exception:"

View File

@@ -18,6 +18,8 @@ class Azure:
logging.info("azure " + str(self))
# Acquire a credential object using CLI-based authentication.
credentials = DefaultAzureCredential()
# az_account = runcommand.invoke("az account list -o yaml")
# az_account_yaml = yaml.safe_load(az_account, Loader=yaml.FullLoader)
logger = logging.getLogger("azure")
logger.setLevel(logging.WARNING)
subscription_id = os.getenv("AZURE_SUBSCRIPTION_ID")
@@ -216,7 +218,7 @@ class azure_node_scenarios(abstract_node_scenarios):
# Node scenario to start the node
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -244,7 +246,7 @@ class azure_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to stop the node
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -271,7 +273,7 @@ class azure_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to terminate the node
def node_termination_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_termination_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:

View File

@@ -153,7 +153,7 @@ class bm_node_scenarios(abstract_node_scenarios):
self.node_action_kube_check = node_action_kube_check
# Node scenario to start the node
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -182,7 +182,7 @@ class bm_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to stop the node
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -210,7 +210,7 @@ class bm_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to terminate the node
def node_termination_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_termination_scenario(self, instance_kill_count, node, timeout):
logging.info("Node termination scenario is not supported on baremetal")
# Node scenario to reboot the node
@@ -229,7 +229,7 @@ class bm_node_scenarios(abstract_node_scenarios):
nodeaction.wait_for_unknown_status(node, timeout, self.kubecli, affected_node)
nodeaction.wait_for_ready_status(node, timeout, self.kubecli, affected_node)
logging.info("Node with bmc address: %s has been rebooted" % (bmc_addr))
logging.info("node_reboot_scenario has been successfully injected!")
logging.info("node_reboot_scenario has been successfuly injected!")
except Exception as e:
logging.error(
"Failed to reboot node instance. Encountered following exception:"

View File

@@ -2,176 +2,49 @@ import krkn.scenario_plugins.node_actions.common_node_functions as nodeaction
from krkn.scenario_plugins.node_actions.abstract_node_scenarios import (
abstract_node_scenarios,
)
import os
import platform
import logging
import docker
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.models.k8s import AffectedNode, AffectedNodeStatus
class Docker:
"""
Container runtime client wrapper supporting both Docker and Podman.
This class automatically detects and connects to either Docker or Podman
container runtimes using the Docker-compatible API. It tries multiple
connection methods in order of preference:
1. Docker Unix socket (unix:///var/run/docker.sock)
2. Platform-specific Podman sockets:
- macOS: ~/.local/share/containers/podman/machine/podman.sock
- Linux rootful: unix:///run/podman/podman.sock
- Linux rootless: unix:///run/user/<uid>/podman/podman.sock
3. Environment variables (DOCKER_HOST or CONTAINER_HOST)
The runtime type (docker/podman) is auto-detected and logged for debugging.
Supports Kind clusters running on Podman.
Assisted By: Claude Code
"""
def __init__(self):
self.client = None
self.runtime = 'unknown'
# Try multiple connection methods in order of preference
# Supports both Docker and Podman
connection_methods = [
('unix:///var/run/docker.sock', 'Docker Unix socket'),
]
# Add platform-specific Podman sockets
if platform.system() == 'Darwin': # macOS
# On macOS, Podman uses podman-machine with socket typically at:
# ~/.local/share/containers/podman/machine/podman.sock
# This is often symlinked to /var/run/docker.sock
podman_machine_sock = os.path.expanduser('~/.local/share/containers/podman/machine/podman.sock')
if os.path.exists(podman_machine_sock):
connection_methods.append((f'unix://{podman_machine_sock}', 'Podman machine socket (macOS)'))
else: # Linux
connection_methods.extend([
('unix:///run/podman/podman.sock', 'Podman Unix socket (rootful)'),
('unix:///run/user/{uid}/podman/podman.sock', 'Podman Unix socket (rootless)'),
])
# Always try from_env as last resort
connection_methods.append(('from_env', 'Environment variables (DOCKER_HOST/CONTAINER_HOST)'))
for method, description in connection_methods:
try:
# Handle rootless Podman socket path with {uid} placeholder
if '{uid}' in method:
uid = os.getuid()
method = method.format(uid=uid)
logging.info(f'Attempting to connect using {description}: {method}')
if method == 'from_env':
logging.info(f'Attempting to connect using {description}')
self.client = docker.from_env()
else:
logging.info(f'Attempting to connect using {description}: {method}')
self.client = docker.DockerClient(base_url=method)
# Test the connection
self.client.ping()
# Detect runtime type
try:
version_info = self.client.version()
version_str = version_info.get('Version', '')
if 'podman' in version_str.lower():
self.runtime = 'podman'
else:
self.runtime = 'docker'
logging.debug(f'Runtime version info: {version_str}')
except Exception as version_err:
logging.warning(f'Could not detect runtime version: {version_err}')
self.runtime = 'unknown'
logging.info(f'Successfully connected to {self.runtime} using {description}')
# Log available containers for debugging
try:
containers = self.client.containers.list(all=True)
logging.info(f'Found {len(containers)} total containers')
for container in containers[:5]: # Log first 5
logging.debug(f' Container: {container.name} ({container.status})')
except Exception as list_err:
logging.warning(f'Could not list containers: {list_err}')
break
except Exception as e:
logging.warning(f'Failed to connect using {description}: {e}')
continue
if self.client is None:
error_msg = 'Failed to initialize container runtime client (Docker/Podman) with any connection method'
logging.error(error_msg)
logging.error('Attempted connection methods:')
for method, desc in connection_methods:
logging.error(f' - {desc}: {method}')
raise RuntimeError(error_msg)
logging.info(f'Container runtime client initialized successfully: {self.runtime}')
self.client = docker.from_env()
def get_container_id(self, node_name):
"""Get the container ID for a given node name."""
container = self.client.containers.get(node_name)
logging.info(f'Found {self.runtime} container for node {node_name}: {container.id}')
return container.id
# Start the node instance
def start_instances(self, node_name):
"""Start a container instance (works with both Docker and Podman)."""
logging.info(f'Starting {self.runtime} container for node: {node_name}')
container = self.client.containers.get(node_name)
container.start()
logging.info(f'Container {container.id} started successfully')
# Stop the node instance
def stop_instances(self, node_name):
"""Stop a container instance (works with both Docker and Podman)."""
logging.info(f'Stopping {self.runtime} container for node: {node_name}')
container = self.client.containers.get(node_name)
container.stop()
logging.info(f'Container {container.id} stopped successfully')
# Reboot the node instance
def reboot_instances(self, node_name):
"""Restart a container instance (works with both Docker and Podman)."""
logging.info(f'Restarting {self.runtime} container for node: {node_name}')
container = self.client.containers.get(node_name)
container.restart()
logging.info(f'Container {container.id} restarted successfully')
# Terminate the node instance
def terminate_instances(self, node_name):
"""Stop and remove a container instance (works with both Docker and Podman)."""
logging.info(f'Terminating {self.runtime} container for node: {node_name}')
container = self.client.containers.get(node_name)
container.stop()
container.remove()
logging.info(f'Container {container.id} terminated and removed successfully')
class docker_node_scenarios(abstract_node_scenarios):
"""
Node chaos scenarios for containerized Kubernetes nodes.
Supports both Docker and Podman container runtimes. This class provides
methods to inject chaos into Kubernetes nodes running as containers
(e.g., Kind clusters, Podman-based clusters).
"""
def __init__(self, kubecli: KrknKubernetes, node_action_kube_check: bool, affected_nodes_status: AffectedNodeStatus):
logging.info('Initializing docker_node_scenarios (supports Docker and Podman)')
super().__init__(kubecli, node_action_kube_check, affected_nodes_status)
self.docker = Docker()
self.node_action_kube_check = node_action_kube_check
logging.info(f'Node scenarios initialized successfully using {self.docker.runtime} runtime')
# Node scenario to start the node
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -198,7 +71,7 @@ class docker_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to stop the node
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -224,7 +97,7 @@ class docker_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to terminate the node
def node_termination_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_termination_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
try:
logging.info("Starting node_termination_scenario injection")
@@ -237,7 +110,7 @@ class docker_node_scenarios(abstract_node_scenarios):
logging.info(
"Node with container ID: %s has been terminated" % (container_id)
)
logging.info("node_termination_scenario has been successfully injected!")
logging.info("node_termination_scenario has been successfuly injected!")
except Exception as e:
logging.error(
"Failed to terminate node instance. Encountered following exception:"
@@ -264,7 +137,7 @@ class docker_node_scenarios(abstract_node_scenarios):
logging.info(
"Node with container ID: %s has been rebooted" % (container_id)
)
logging.info("node_reboot_scenario has been successfully injected!")
logging.info("node_reboot_scenario has been successfuly injected!")
except Exception as e:
logging.error(
"Failed to reboot node instance. Encountered following exception:"

View File

@@ -227,7 +227,7 @@ class gcp_node_scenarios(abstract_node_scenarios):
self.node_action_kube_check = node_action_kube_check
# Node scenario to start the node
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -257,7 +257,7 @@ class gcp_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to stop the node
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -286,7 +286,7 @@ class gcp_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to terminate the node
def node_termination_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_termination_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -309,7 +309,7 @@ class gcp_node_scenarios(abstract_node_scenarios):
logging.info(
"Node with instance ID: %s has been terminated" % instance_id
)
logging.info("node_termination_scenario has been successfully injected!")
logging.info("node_termination_scenario has been successfuly injected!")
except Exception as e:
logging.error(
"Failed to terminate node instance. Encountered following exception:"
@@ -341,7 +341,7 @@ class gcp_node_scenarios(abstract_node_scenarios):
logging.info(
"Node with instance ID: %s has been rebooted" % instance_id
)
logging.info("node_reboot_scenario has been successfully injected!")
logging.info("node_reboot_scenario has been successfuly injected!")
except Exception as e:
logging.error(
"Failed to reboot node instance. Encountered following exception:"

View File

@@ -18,21 +18,21 @@ class general_node_scenarios(abstract_node_scenarios):
self.node_action_kube_check = node_action_kube_check
# Node scenario to start the node
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
logging.info(
"Node start is not set up yet for this cloud type, "
"no action is going to be taken"
)
# Node scenario to stop the node
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
logging.info(
"Node stop is not set up yet for this cloud type,"
" no action is going to be taken"
)
# Node scenario to terminate the node
def node_termination_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_termination_scenario(self, instance_kill_count, node, timeout):
logging.info(
"Node termination is not set up yet for this cloud type, "
"no action is going to be taken"

View File

@@ -284,7 +284,7 @@ class ibm_node_scenarios(abstract_node_scenarios):
self.node_action_kube_check = node_action_kube_check
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
try:
instance_id = self.ibmcloud.get_instance_id( node)
affected_node = AffectedNode(node, node_id=instance_id)
@@ -317,7 +317,7 @@ class ibm_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
try:
instance_id = self.ibmcloud.get_instance_id(node)
for _ in range(instance_kill_count):
@@ -327,20 +327,14 @@ class ibm_node_scenarios(abstract_node_scenarios):
vm_stopped = self.ibmcloud.stop_instances(instance_id)
if vm_stopped:
self.ibmcloud.wait_until_stopped(instance_id, timeout, affected_node)
logging.info(
"Node with instance ID: %s is in stopped state" % node
)
logging.info(
"node_stop_scenario has been successfully injected!"
)
else:
logging.error(
"Failed to stop node instance %s. Stop command failed." % instance_id
)
raise Exception("Stop command failed for instance %s" % instance_id)
self.affected_nodes_status.affected_nodes.append(affected_node)
logging.info(
"Node with instance ID: %s is in stopped state" % node
)
logging.info(
"node_stop_scenario has been successfully injected!"
)
except Exception as e:
logging.error("Failed to stop node instance. Test Failed: %s" % str(e))
logging.error("Failed to stop node instance. Test Failed")
logging.error("node_stop_scenario injection failed!")
@@ -351,35 +345,28 @@ class ibm_node_scenarios(abstract_node_scenarios):
affected_node = AffectedNode(node, node_id=instance_id)
logging.info("Starting node_reboot_scenario injection")
logging.info("Rebooting the node %s " % (node))
vm_rebooted = self.ibmcloud.reboot_instances(instance_id)
if vm_rebooted:
self.ibmcloud.wait_until_rebooted(instance_id, timeout, affected_node)
if self.node_action_kube_check:
nodeaction.wait_for_unknown_status(
node, timeout, self.kubecli, affected_node
)
nodeaction.wait_for_ready_status(
node, timeout, self.kubecli, affected_node
)
logging.info(
"Node with instance ID: %s has rebooted successfully" % node
self.ibmcloud.reboot_instances(instance_id)
self.ibmcloud.wait_until_rebooted(instance_id, timeout, affected_node)
if self.node_action_kube_check:
nodeaction.wait_for_unknown_status(
node, timeout, affected_node
)
logging.info(
"node_reboot_scenario has been successfully injected!"
nodeaction.wait_for_ready_status(
node, timeout, affected_node
)
else:
logging.error(
"Failed to reboot node instance %s. Reboot command failed." % instance_id
)
raise Exception("Reboot command failed for instance %s" % instance_id)
self.affected_nodes_status.affected_nodes.append(affected_node)
logging.info(
"Node with instance ID: %s has rebooted successfully" % node
)
logging.info(
"node_reboot_scenario has been successfully injected!"
)
except Exception as e:
logging.error("Failed to reboot node instance. Test Failed: %s" % str(e))
logging.error("Failed to reboot node instance. Test Failed")
logging.error("node_reboot_scenario injection failed!")
def node_terminate_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_terminate_scenario(self, instance_kill_count, node, timeout):
try:
instance_id = self.ibmcloud.get_instance_id(node)
for _ in range(instance_kill_count):
@@ -396,8 +383,7 @@ class ibm_node_scenarios(abstract_node_scenarios):
logging.info(
"node_terminate_scenario has been successfully injected!"
)
self.affected_nodes_status.affected_nodes.append(affected_node)
except Exception as e:
logging.error("Failed to terminate node instance. Test Failed: %s" % str(e))
logging.error("Failed to terminate node instance. Test Failed")
logging.error("node_terminate_scenario injection failed!")

View File

@@ -298,7 +298,7 @@ class ibmcloud_power_node_scenarios(abstract_node_scenarios):
self.node_action_kube_check = node_action_kube_check
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
try:
instance_id = self.ibmcloud_power.get_instance_id( node)
affected_node = AffectedNode(node, node_id=instance_id)
@@ -331,7 +331,7 @@ class ibmcloud_power_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
try:
instance_id = self.ibmcloud_power.get_instance_id(node)
for _ in range(instance_kill_count):
@@ -380,7 +380,7 @@ class ibmcloud_power_node_scenarios(abstract_node_scenarios):
logging.error("node_reboot_scenario injection failed!")
def node_terminate_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_terminate_scenario(self, instance_kill_count, node, timeout):
try:
instance_id = self.ibmcloud_power.get_instance_id(node)
for _ in range(instance_kill_count):

View File

@@ -236,7 +236,7 @@ class NodeActionsScenarioPlugin(AbstractScenarioPlugin):
# Get the scenario specifics for running action nodes
run_kill_count = get_yaml_item_value(node_scenario, "runs", 1)
duration = get_yaml_item_value(node_scenario, "duration", 120)
poll_interval = get_yaml_item_value(node_scenario, "poll_interval", 15)
timeout = get_yaml_item_value(node_scenario, "timeout", 120)
service = get_yaml_item_value(node_scenario, "service", "")
soft_reboot = get_yaml_item_value(node_scenario, "soft_reboot", False)
@@ -254,19 +254,19 @@ class NodeActionsScenarioPlugin(AbstractScenarioPlugin):
else:
if action == "node_start_scenario":
node_scenario_object.node_start_scenario(
run_kill_count, single_node, timeout, poll_interval
run_kill_count, single_node, timeout
)
elif action == "node_stop_scenario":
node_scenario_object.node_stop_scenario(
run_kill_count, single_node, timeout, poll_interval
run_kill_count, single_node, timeout
)
elif action == "node_stop_start_scenario":
node_scenario_object.node_stop_start_scenario(
run_kill_count, single_node, timeout, duration, poll_interval
run_kill_count, single_node, timeout, duration
)
elif action == "node_termination_scenario":
node_scenario_object.node_termination_scenario(
run_kill_count, single_node, timeout, poll_interval
run_kill_count, single_node, timeout
)
elif action == "node_reboot_scenario":
node_scenario_object.node_reboot_scenario(

View File

@@ -122,7 +122,7 @@ class openstack_node_scenarios(abstract_node_scenarios):
self.node_action_kube_check = node_action_kube_check
# Node scenario to start the node
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -147,7 +147,7 @@ class openstack_node_scenarios(abstract_node_scenarios):
self.affected_nodes_status.affected_nodes.append(affected_node)
# Node scenario to stop the node
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
try:
@@ -184,7 +184,7 @@ class openstack_node_scenarios(abstract_node_scenarios):
nodeaction.wait_for_unknown_status(node, timeout, self.kubecli, affected_node)
nodeaction.wait_for_ready_status(node, timeout, self.kubecli, affected_node)
logging.info("Node with instance name: %s has been rebooted" % (node))
logging.info("node_reboot_scenario has been successfully injected!")
logging.info("node_reboot_scenario has been successfuly injected!")
except Exception as e:
logging.error(
"Failed to reboot node instance. Encountered following exception:"
@@ -249,7 +249,7 @@ class openstack_node_scenarios(abstract_node_scenarios):
node_ip.strip(), service, ssh_private_key, timeout
)
logging.info("Service status checked on %s" % (node_ip))
logging.info("Check service status is successfully injected!")
logging.info("Check service status is successfuly injected!")
except Exception as e:
logging.error(
"Failed to check service status. Encountered following exception:"

View File

@@ -389,7 +389,7 @@ class vmware_node_scenarios(abstract_node_scenarios):
self.vsphere = vSphere()
self.node_action_kube_check = node_action_kube_check
def node_start_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_start_scenario(self, instance_kill_count, node, timeout):
try:
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
@@ -409,7 +409,7 @@ class vmware_node_scenarios(abstract_node_scenarios):
f"node_start_scenario injection failed! " f"Error was: {str(e)}"
)
def node_stop_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_stop_scenario(self, instance_kill_count, node, timeout):
try:
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)
@@ -456,7 +456,7 @@ class vmware_node_scenarios(abstract_node_scenarios):
)
def node_terminate_scenario(self, instance_kill_count, node, timeout, poll_interval):
def node_terminate_scenario(self, instance_kill_count, node, timeout):
try:
for _ in range(instance_kill_count):
affected_node = AffectedNode(node)

View File

@@ -2,7 +2,7 @@ import logging
import random
import time
from asyncio import Future
import traceback
import yaml
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.k8s.pod_monitor import select_and_monitor_by_namespace_pattern_and_label, \
@@ -11,7 +11,6 @@ from krkn_lib.k8s.pod_monitor import select_and_monitor_by_namespace_pattern_and
from krkn.scenario_plugins.pod_disruption.models.models import InputParams
from krkn_lib.models.telemetry import ScenarioTelemetry
from krkn_lib.telemetry.ocp import KrknTelemetryOpenshift
from krkn_lib.models.pod_monitor.models import PodsSnapshot
from datetime import datetime
from dataclasses import dataclass
@@ -41,27 +40,10 @@ class PodDisruptionScenarioPlugin(AbstractScenarioPlugin):
kill_scenario_config,
lib_telemetry
)
ret = self.killing_pods(
self.killing_pods(
kill_scenario_config, lib_telemetry.get_lib_kubernetes()
)
# returning 2 if configuration issue and exiting immediately
if ret > 1:
# Cancel the monitoring future since killing_pods already failed
logging.info("Cancelling pod monitoring future")
future_snapshot.cancel()
# Wait for the future to finish (monitoring will stop when stop_event is set)
while not future_snapshot.done():
logging.info("waiting for future to finish")
time.sleep(1)
logging.info("future snapshot cancelled and finished")
# Get the snapshot result (even if cancelled, it will have partial data)
snapshot = future_snapshot.result()
result = snapshot.get_pods_status()
scenario_telemetry.affected_pods = result
logging.error("PodDisruptionScenarioPlugin failed during setup" + str(result))
return 1
snapshot = future_snapshot.result()
result = snapshot.get_pods_status()
scenario_telemetry.affected_pods = result
@@ -69,12 +51,7 @@ class PodDisruptionScenarioPlugin(AbstractScenarioPlugin):
logging.info("PodDisruptionScenarioPlugin failed with unrecovered pods")
return 1
if ret > 0:
logging.info("PodDisruptionScenarioPlugin failed")
return 1
except (RuntimeError, Exception) as e:
logging.error("Stack trace:\n%s", traceback.format_exc())
logging.error("PodDisruptionScenariosPlugin exiting due to Exception %s" % e)
return 1
else:
@@ -151,7 +128,7 @@ class PodDisruptionScenarioPlugin(AbstractScenarioPlugin):
field_selector=combined_field_selector
)
def get_pods(self, name_pattern, label_selector, namespace, kubecli: KrknKubernetes, field_selector: str = None, node_label_selector: str = None, node_names: list = None):
def get_pods(self, name_pattern, label_selector, namespace, kubecli: KrknKubernetes, field_selector: str = None, node_label_selector: str = None, node_names: list = None, quiet: bool = False):
if label_selector and name_pattern:
logging.error('Only, one of name pattern or label pattern can be specified')
return []
@@ -162,7 +139,8 @@ class PodDisruptionScenarioPlugin(AbstractScenarioPlugin):
# If specific node names are provided, make multiple calls with field selector
if node_names:
logging.debug(f"Targeting pods on {len(node_names)} specific nodes")
if not quiet:
logging.info(f"Targeting pods on {len(node_names)} specific nodes")
all_pods = []
for node_name in node_names:
pods = self._select_pods_with_field_selector(
@@ -172,7 +150,8 @@ class PodDisruptionScenarioPlugin(AbstractScenarioPlugin):
if pods:
all_pods.extend(pods)
logging.debug(f"Found {len(all_pods)} target pods across {len(node_names)} nodes")
if not quiet:
logging.info(f"Found {len(all_pods)} target pods across {len(node_names)} nodes")
return all_pods
# Node label selector approach - use field selectors
@@ -180,10 +159,11 @@ class PodDisruptionScenarioPlugin(AbstractScenarioPlugin):
# Get nodes matching the label selector first
nodes_with_label = kubecli.list_nodes(label_selector=node_label_selector)
if not nodes_with_label:
logging.debug(f"No nodes found with label selector: {node_label_selector}")
logging.info(f"No nodes found with label selector: {node_label_selector}")
return []
logging.debug(f"Targeting pods on {len(nodes_with_label)} nodes with label: {node_label_selector}")
if not quiet:
logging.info(f"Targeting pods on {len(nodes_with_label)} nodes with label: {node_label_selector}")
# Use field selector for each node
all_pods = []
for node_name in nodes_with_label:
@@ -194,7 +174,8 @@ class PodDisruptionScenarioPlugin(AbstractScenarioPlugin):
if pods:
all_pods.extend(pods)
logging.debug(f"Found {len(all_pods)} target pods across {len(nodes_with_label)} nodes")
if not quiet:
logging.info(f"Found {len(all_pods)} target pods across {len(nodes_with_label)} nodes")
return all_pods
# Standard pod selection (no node targeting)
@@ -204,40 +185,37 @@ class PodDisruptionScenarioPlugin(AbstractScenarioPlugin):
def killing_pods(self, config: InputParams, kubecli: KrknKubernetes):
# region Select target pods
try:
namespace = config.namespace_pattern
if not namespace:
logging.error('Namespace pattern must be specified')
pods = self.get_pods(config.name_pattern,config.label_selector,config.namespace_pattern, kubecli, field_selector="status.phase=Running", node_label_selector=config.node_label_selector, node_names=config.node_names)
exclude_pods = set()
if config.exclude_label:
_exclude_pods = self.get_pods("",config.exclude_label,config.namespace_pattern, kubecli, field_selector="status.phase=Running", node_label_selector=config.node_label_selector, node_names=config.node_names)
for pod in _exclude_pods:
exclude_pods.add(pod[0])
pods_count = len(pods)
if len(pods) < config.kill:
logging.error("Not enough pods match the criteria, expected {} but found only {} pods".format(
config.kill, len(pods)))
return 1
random.shuffle(pods)
for i in range(config.kill):
pod = pods[i]
logging.info(pod)
if pod[0] in exclude_pods:
logging.info(f"Excluding {pod[0]} from chaos")
else:
logging.info(f'Deleting pod {pod[0]}')
kubecli.delete_pod(pod[0], pod[1])
return_val = self.wait_for_pods(config.label_selector,config.name_pattern,config.namespace_pattern, pods_count, config.duration, config.timeout, kubecli, config.node_label_selector, config.node_names)
except Exception as e:
raise(e)
namespace = config.namespace_pattern
if not namespace:
logging.error('Namespace pattern must be specified')
return return_val
pods = self.get_pods(config.name_pattern,config.label_selector,config.namespace_pattern, kubecli, field_selector="status.phase=Running", node_label_selector=config.node_label_selector, node_names=config.node_names)
exclude_pods = set()
if config.exclude_label:
_exclude_pods = self.get_pods("",config.exclude_label,config.namespace_pattern, kubecli, field_selector="status.phase=Running", node_label_selector=config.node_label_selector, node_names=config.node_names)
for pod in _exclude_pods:
exclude_pods.add(pod[0])
pods_count = len(pods)
if len(pods) < config.kill:
logging.error("Not enough pods match the criteria, expected {} but found only {} pods".format(
config.kill, len(pods)))
return 1
random.shuffle(pods)
for i in range(config.kill):
pod = pods[i]
logging.info(pod)
if pod[0] in exclude_pods:
logging.info(f"Excluding {pod[0]} from chaos")
else:
logging.info(f'Deleting pod {pod[0]}')
kubecli.delete_pod(pod[0], pod[1])
self.wait_for_pods(config.label_selector,config.name_pattern,config.namespace_pattern, pods_count, config.duration, config.timeout, kubecli, config.node_label_selector, config.node_names)
return 0
def wait_for_pods(
self, label_selector, pod_name, namespace, pod_count, duration, wait_timeout, kubecli: KrknKubernetes, node_label_selector, node_names
@@ -246,10 +224,10 @@ class PodDisruptionScenarioPlugin(AbstractScenarioPlugin):
start_time = datetime.now()
while not timeout:
pods = self.get_pods(name_pattern=pod_name, label_selector=label_selector,namespace=namespace, field_selector="status.phase=Running", kubecli=kubecli, node_label_selector=node_label_selector, node_names=node_names)
pods = self.get_pods(name_pattern=pod_name, label_selector=label_selector,namespace=namespace, field_selector="status.phase=Running", kubecli=kubecli, node_label_selector=node_label_selector, node_names=node_names, quiet=True)
if pod_count == len(pods):
return 0
return
time.sleep(duration)
now_time = datetime.now()
@@ -258,5 +236,4 @@ class PodDisruptionScenarioPlugin(AbstractScenarioPlugin):
if time_diff.seconds > wait_timeout:
logging.error("timeout while waiting for pods to come up")
return 1
return 0

View File

@@ -209,7 +209,7 @@ class ServiceDisruptionScenarioPlugin(AbstractScenarioPlugin):
try:
statefulsets = kubecli.get_all_statefulset(namespace)
for statefulset in statefulsets:
logging.info("Deleting statefulset" + statefulset)
logging.info("Deleting statefulsets" + statefulsets)
kubecli.delete_statefulset(statefulset, namespace)
except Exception as e:
logging.error(

View File

@@ -43,7 +43,7 @@ class TimeActionsScenarioPlugin(AbstractScenarioPlugin):
cerberus.publish_kraken_status(
krkn_config, not_reset, start_time, end_time
)
except (RuntimeError, Exception) as e:
except (RuntimeError, Exception):
logging.error(
f"TimeActionsScenarioPlugin scenario {scenario} failed with exception: {e}"
)

View File

@@ -140,7 +140,7 @@ class ZoneOutageScenarioPlugin(AbstractScenarioPlugin):
network_association_ids[0], acl_id
)
# capture the original_acl_id, created_acl_id and
# capture the orginal_acl_id, created_acl_id and
# new association_id to use during the recovery
ids[new_association_id] = original_acl_id
@@ -156,7 +156,7 @@ class ZoneOutageScenarioPlugin(AbstractScenarioPlugin):
new_association_id, original_acl_id
)
logging.info(
"Waiting for 60 seconds to make sure " "the changes are in place"
"Wating for 60 seconds to make sure " "the changes are in place"
)
time.sleep(60)

View File

@@ -1,17 +1,10 @@
import json
import tempfile
import unittest
from pathlib import Path
from unittest.mock import Mock, patch
from krkn.scenario_plugins.abstract_scenario_plugin import AbstractScenarioPlugin
from krkn.scenario_plugins.scenario_plugin_factory import ScenarioPluginFactory
from krkn.scenario_plugins.native.plugins import PluginStep, Plugins, PLUGINS
from krkn.tests.test_classes.correct_scenario_plugin import (
CorrectScenarioPlugin,
)
import yaml
class TestPluginFactory(unittest.TestCase):
@@ -115,437 +108,3 @@ class TestPluginFactory(unittest.TestCase):
self.assertEqual(
message, "scenario plugin folder cannot contain `scenario` or `plugin` word"
)
class TestPluginStep(unittest.TestCase):
"""Test cases for PluginStep class"""
def setUp(self):
"""Set up test fixtures"""
# Create a mock schema
self.mock_schema = Mock()
self.mock_schema.id = "test_step"
# Create mock output
mock_output = Mock()
mock_output.serialize = Mock(return_value={"status": "success", "message": "test"})
self.mock_schema.outputs = {
"success": mock_output,
"error": mock_output
}
self.plugin_step = PluginStep(
schema=self.mock_schema,
error_output_ids=["error"]
)
def test_render_output(self):
"""Test render_output method"""
output_id = "success"
output_data = {"status": "success", "message": "test output"}
result = self.plugin_step.render_output(output_id, output_data)
# Verify it returns a JSON string
self.assertIsInstance(result, str)
# Verify it can be parsed as JSON
parsed = json.loads(result)
self.assertEqual(parsed["output_id"], output_id)
self.assertIn("output_data", parsed)
class TestPlugins(unittest.TestCase):
"""Test cases for Plugins class"""
def setUp(self):
"""Set up test fixtures"""
# Create mock steps with proper id attribute
self.mock_step1 = Mock()
self.mock_step1.id = "step1"
self.mock_step2 = Mock()
self.mock_step2.id = "step2"
self.plugin_step1 = PluginStep(schema=self.mock_step1, error_output_ids=["error"])
self.plugin_step2 = PluginStep(schema=self.mock_step2, error_output_ids=["error"])
def test_init_with_valid_steps(self):
"""Test Plugins initialization with valid steps"""
plugins = Plugins([self.plugin_step1, self.plugin_step2])
self.assertEqual(len(plugins.steps_by_id), 2)
self.assertIn("step1", plugins.steps_by_id)
self.assertIn("step2", plugins.steps_by_id)
def test_init_with_duplicate_step_ids(self):
"""Test Plugins initialization with duplicate step IDs raises exception"""
# Create two steps with the same ID
duplicate_step = PluginStep(schema=self.mock_step1, error_output_ids=["error"])
with self.assertRaises(Exception) as context:
Plugins([self.plugin_step1, duplicate_step])
self.assertIn("Duplicate step ID", str(context.exception))
def test_unserialize_scenario(self):
"""Test unserialize_scenario method"""
# Create a temporary YAML file
test_data = [
{"id": "test_step", "config": {"param": "value"}}
]
with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
yaml.dump(test_data, f)
temp_file = f.name
try:
plugins = Plugins([self.plugin_step1])
result = plugins.unserialize_scenario(temp_file)
self.assertIsInstance(result, list)
finally:
Path(temp_file).unlink()
def test_run_with_invalid_scenario_not_list(self):
"""Test run method with scenario that is not a list"""
# Create a temporary YAML file with dict instead of list
test_data = {"id": "test_step", "config": {"param": "value"}}
with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
yaml.dump(test_data, f)
temp_file = f.name
try:
plugins = Plugins([self.plugin_step1])
with self.assertRaises(Exception) as context:
plugins.run(temp_file, "/path/to/kubeconfig", "/path/to/kraken_config", "test-uuid")
self.assertIn("expected list", str(context.exception))
finally:
Path(temp_file).unlink()
def test_run_with_invalid_entry_not_dict(self):
"""Test run method with entry that is not a dict"""
# Create a temporary YAML file with list of strings instead of dicts
test_data = ["invalid", "entries"]
with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
yaml.dump(test_data, f)
temp_file = f.name
try:
plugins = Plugins([self.plugin_step1])
with self.assertRaises(Exception) as context:
plugins.run(temp_file, "/path/to/kubeconfig", "/path/to/kraken_config", "test-uuid")
self.assertIn("expected a list of dict's", str(context.exception))
finally:
Path(temp_file).unlink()
def test_run_with_missing_id_field(self):
"""Test run method with missing 'id' field"""
# Create a temporary YAML file with missing id
test_data = [
{"config": {"param": "value"}}
]
with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
yaml.dump(test_data, f)
temp_file = f.name
try:
plugins = Plugins([self.plugin_step1])
with self.assertRaises(Exception) as context:
plugins.run(temp_file, "/path/to/kubeconfig", "/path/to/kraken_config", "test-uuid")
self.assertIn("missing 'id' field", str(context.exception))
finally:
Path(temp_file).unlink()
def test_run_with_missing_config_field(self):
"""Test run method with missing 'config' field"""
# Create a temporary YAML file with missing config
test_data = [
{"id": "step1"}
]
with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
yaml.dump(test_data, f)
temp_file = f.name
try:
plugins = Plugins([self.plugin_step1])
with self.assertRaises(Exception) as context:
plugins.run(temp_file, "/path/to/kubeconfig", "/path/to/kraken_config", "test-uuid")
self.assertIn("missing 'config' field", str(context.exception))
finally:
Path(temp_file).unlink()
def test_run_with_invalid_step_id(self):
"""Test run method with invalid step ID"""
# Create a proper mock schema with string ID
mock_schema = Mock()
mock_schema.id = "valid_step"
plugin_step = PluginStep(schema=mock_schema, error_output_ids=["error"])
# Create a temporary YAML file with unknown step ID
test_data = [
{"id": "unknown_step", "config": {"param": "value"}}
]
with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
yaml.dump(test_data, f)
temp_file = f.name
try:
plugins = Plugins([plugin_step])
with self.assertRaises(Exception) as context:
plugins.run(temp_file, "/path/to/kubeconfig", "/path/to/kraken_config", "test-uuid")
self.assertIn("Invalid step", str(context.exception))
self.assertIn("expected one of", str(context.exception))
finally:
Path(temp_file).unlink()
@patch('krkn.scenario_plugins.native.plugins.logging')
def test_run_with_valid_scenario(self, mock_logging):
"""Test run method with valid scenario"""
# Create mock schema with all necessary attributes
mock_schema = Mock()
mock_schema.id = "test_step"
# Mock input schema
mock_input = Mock()
mock_input.properties = {}
mock_input.unserialize = Mock(return_value=Mock(spec=[]))
mock_schema.input = mock_input
# Mock output
mock_output = Mock()
mock_output.serialize = Mock(return_value={"status": "success"})
mock_schema.outputs = {"success": mock_output}
# Mock schema call
mock_schema.return_value = ("success", {"status": "success"})
plugin_step = PluginStep(schema=mock_schema, error_output_ids=["error"])
# Create a temporary YAML file
test_data = [
{"id": "test_step", "config": {"param": "value"}}
]
with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
yaml.dump(test_data, f)
temp_file = f.name
try:
plugins = Plugins([plugin_step])
plugins.run(temp_file, "/path/to/kubeconfig", "/path/to/kraken_config", "test-uuid")
# Verify schema was called
mock_schema.assert_called_once()
finally:
Path(temp_file).unlink()
@patch('krkn.scenario_plugins.native.plugins.logging')
def test_run_with_error_output(self, mock_logging):
"""Test run method when step returns error output"""
# Create mock schema with error output
mock_schema = Mock()
mock_schema.id = "test_step"
# Mock input schema
mock_input = Mock()
mock_input.properties = {}
mock_input.unserialize = Mock(return_value=Mock(spec=[]))
mock_schema.input = mock_input
# Mock output
mock_output = Mock()
mock_output.serialize = Mock(return_value={"error": "test error"})
mock_schema.outputs = {"error": mock_output}
# Mock schema call to return error
mock_schema.return_value = ("error", {"error": "test error"})
plugin_step = PluginStep(schema=mock_schema, error_output_ids=["error"])
# Create a temporary YAML file
test_data = [
{"id": "test_step", "config": {"param": "value"}}
]
with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
yaml.dump(test_data, f)
temp_file = f.name
try:
plugins = Plugins([plugin_step])
with self.assertRaises(Exception) as context:
plugins.run(temp_file, "/path/to/kubeconfig", "/path/to/kraken_config", "test-uuid")
self.assertIn("failed", str(context.exception))
finally:
Path(temp_file).unlink()
@patch('krkn.scenario_plugins.native.plugins.logging')
def test_run_with_kubeconfig_path_injection(self, mock_logging):
"""Test run method injects kubeconfig_path when property exists"""
# Create mock schema with kubeconfig_path in input properties
mock_schema = Mock()
mock_schema.id = "test_step"
# Mock input schema with kubeconfig_path property
mock_input_instance = Mock()
mock_input = Mock()
mock_input.properties = {"kubeconfig_path": Mock()}
mock_input.unserialize = Mock(return_value=mock_input_instance)
mock_schema.input = mock_input
# Mock output
mock_output = Mock()
mock_output.serialize = Mock(return_value={"status": "success"})
mock_schema.outputs = {"success": mock_output}
# Mock schema call
mock_schema.return_value = ("success", {"status": "success"})
plugin_step = PluginStep(schema=mock_schema, error_output_ids=["error"])
# Create a temporary YAML file
test_data = [
{"id": "test_step", "config": {"param": "value"}}
]
with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
yaml.dump(test_data, f)
temp_file = f.name
try:
plugins = Plugins([plugin_step])
plugins.run(temp_file, "/custom/kubeconfig", "/path/to/kraken_config", "test-uuid")
# Verify kubeconfig_path was set
self.assertEqual(mock_input_instance.kubeconfig_path, "/custom/kubeconfig")
finally:
Path(temp_file).unlink()
@patch('krkn.scenario_plugins.native.plugins.logging')
def test_run_with_kraken_config_injection(self, mock_logging):
"""Test run method injects kraken_config when property exists"""
# Create mock schema with kraken_config in input properties
mock_schema = Mock()
mock_schema.id = "test_step"
# Mock input schema with kraken_config property
mock_input_instance = Mock()
mock_input = Mock()
mock_input.properties = {"kraken_config": Mock()}
mock_input.unserialize = Mock(return_value=mock_input_instance)
mock_schema.input = mock_input
# Mock output
mock_output = Mock()
mock_output.serialize = Mock(return_value={"status": "success"})
mock_schema.outputs = {"success": mock_output}
# Mock schema call
mock_schema.return_value = ("success", {"status": "success"})
plugin_step = PluginStep(schema=mock_schema, error_output_ids=["error"])
# Create a temporary YAML file
test_data = [
{"id": "test_step", "config": {"param": "value"}}
]
with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
yaml.dump(test_data, f)
temp_file = f.name
try:
plugins = Plugins([plugin_step])
plugins.run(temp_file, "/path/to/kubeconfig", "/custom/kraken.yaml", "test-uuid")
# Verify kraken_config was set
self.assertEqual(mock_input_instance.kraken_config, "/custom/kraken.yaml")
finally:
Path(temp_file).unlink()
def test_json_schema(self):
"""Test json_schema method"""
# Create mock schema with jsonschema support
mock_schema = Mock()
mock_schema.id = "test_step"
plugin_step = PluginStep(schema=mock_schema, error_output_ids=["error"])
with patch('krkn.scenario_plugins.native.plugins.jsonschema') as mock_jsonschema:
# Mock the step_input function
mock_jsonschema.step_input.return_value = {
"$id": "http://example.com",
"$schema": "http://json-schema.org/draft-07/schema#",
"title": "Test Schema",
"description": "Test description",
"type": "object",
"properties": {"param": {"type": "string"}}
}
plugins = Plugins([plugin_step])
result = plugins.json_schema()
# Verify it returns a JSON string
self.assertIsInstance(result, str)
# Parse and verify structure
parsed = json.loads(result)
self.assertEqual(parsed["$id"], "https://github.com/redhat-chaos/krkn/")
self.assertEqual(parsed["type"], "array")
self.assertEqual(parsed["minContains"], 1)
self.assertIn("items", parsed)
self.assertIn("oneOf", parsed["items"])
# Verify step is included
self.assertEqual(len(parsed["items"]["oneOf"]), 1)
step_schema = parsed["items"]["oneOf"][0]
self.assertEqual(step_schema["properties"]["id"]["const"], "test_step")
class TestPLUGINSConstant(unittest.TestCase):
"""Test cases for the PLUGINS constant"""
def test_plugins_initialized(self):
"""Test that PLUGINS constant is properly initialized"""
self.assertIsInstance(PLUGINS, Plugins)
# Verify all expected steps are registered
expected_steps = [
"run_python",
"network_chaos",
"pod_network_outage",
"pod_egress_shaping",
"pod_ingress_shaping"
]
for step_id in expected_steps:
self.assertIn(step_id, PLUGINS.steps_by_id)
# Ensure the registered id matches the decorator and no legacy alias is present
self.assertEqual(
PLUGINS.steps_by_id["pod_network_outage"].schema.id,
"pod_network_outage",
)
self.assertNotIn("pod_outage", PLUGINS.steps_by_id)
def test_plugins_step_count(self):
"""Test that PLUGINS has the expected number of steps"""
self.assertEqual(len(PLUGINS.steps_by_id), 5)

View File

@@ -1,71 +0,0 @@
import logging
import threading
from datetime import datetime, timezone
from krkn.utils.ErrorLog import ErrorLog
class ErrorCollectionHandler(logging.Handler):
"""
Custom logging handler that captures ERROR and CRITICAL level logs
in structured format for telemetry collection.
Stores logs in memory as ErrorLog objects for later retrieval.
Thread-safe for concurrent logging operations.
"""
def __init__(self, level=logging.ERROR):
"""
Initialize the error collection handler.
Args:
level: Minimum log level to capture (default: ERROR)
"""
super().__init__(level)
self.error_logs: list[ErrorLog] = []
self._lock = threading.Lock()
def emit(self, record: logging.LogRecord):
"""
Capture ERROR and CRITICAL logs and store as ErrorLog objects.
Args:
record: LogRecord from Python logging framework
"""
try:
# Only capture ERROR (40) and CRITICAL (50) levels
if record.levelno < logging.ERROR:
return
# Format timestamp as ISO 8601 UTC
timestamp = datetime.fromtimestamp(
record.created, tz=timezone.utc
).strftime("%Y-%m-%dT%H:%M:%S.%f")[:-3] + "Z"
# Create ErrorLog object
error_log = ErrorLog(
timestamp=timestamp,
message=record.getMessage()
)
# Thread-safe append
with self._lock:
self.error_logs.append(error_log)
except Exception:
# Handler should never raise exceptions (logging best practice)
self.handleError(record)
def get_error_logs(self) -> list[dict]:
"""
Retrieve all collected error logs as list of dictionaries.
Returns:
List of error log dictionaries with timestamp and message
"""
with self._lock:
return [log.to_dict() for log in self.error_logs]
def clear(self):
"""Clear all collected error logs (useful for testing)"""
with self._lock:
self.error_logs.clear()

View File

@@ -1,18 +0,0 @@
from dataclasses import dataclass, asdict
@dataclass
class ErrorLog:
"""
Represents a single error log entry for telemetry collection.
Attributes:
timestamp: ISO 8601 formatted timestamp (UTC)
message: Full error message text
"""
timestamp: str
message: str
def to_dict(self) -> dict:
"""Convert to dictionary for JSON serialization"""
return asdict(self)

View File

@@ -20,7 +20,6 @@ class VirtChecker:
self.namespace = get_yaml_item_value(kubevirt_check_config, "namespace", "")
self.vm_list = []
self.threads = []
self.iteration_lock = threading.Lock() # Lock to protect current_iterations
self.threads_limit = threads_limit
# setting to 0 in case no variables are set, so no threads later get made
self.batch_size = 0
@@ -58,6 +57,7 @@ class VirtChecker:
elif len(node_name_list) == 0:
# If node_name_list is blank, add all vms
self.vm_list.append(VirtCheck({'vm_name':vmi_name, 'ip_address': ip_address, 'namespace':namespace, 'node_name':node_name, "new_ip_address":""}))
self.batch_size = math.ceil(len(self.vm_list)/self.threads_limit)
def check_disconnected_access(self, ip_address: str, worker_name:str = '', vmi_name: str = ''):
@@ -121,7 +121,8 @@ class VirtChecker:
for thread in self.threads:
thread.join()
def batch_list(self, queue: queue.SimpleQueue = None):
def batch_list(self, queue: queue.Queue = None):
logging.info("batch size" + str(self.batch_size))
if self.batch_size > 0:
# Provided prints to easily visualize how the threads are processed.
for i in range (0, len(self.vm_list),self.batch_size):
@@ -134,23 +135,13 @@ class VirtChecker:
self.threads.append(t)
t.start()
def increment_iterations(self):
"""Thread-safe method to increment current_iterations"""
with self.iteration_lock:
self.current_iterations += 1
def run_virt_check(self, vm_list_batch, virt_check_telemetry_queue: queue.SimpleQueue):
def run_virt_check(self, vm_list_batch, virt_check_telemetry_queue: queue.Queue):
virt_check_telemetry = []
virt_check_tracker = {}
while True:
# Thread-safe read of current_iterations
with self.iteration_lock:
current = self.current_iterations
if current >= self.iterations:
break
while self.current_iterations < self.iterations:
for vm in vm_list_batch:
start_time= datetime.now()
try:
if not self.disconnected:
vm_status = self.get_vm_access(vm.vm_name, vm.namespace)
@@ -166,9 +157,8 @@ class VirtChecker:
if new_node_name and vm.node_name != new_node_name:
vm.node_name = new_node_name
except Exception:
logging.info('Exception in get vm status')
vm_status = False
if vm.vm_name not in virt_check_tracker:
start_timestamp = datetime.now()
virt_check_tracker[vm.vm_name] = {
@@ -181,7 +171,6 @@ class VirtChecker:
"new_ip_address": vm.new_ip_address
}
else:
if vm_status != virt_check_tracker[vm.vm_name]["status"]:
end_timestamp = datetime.now()
start_timestamp = virt_check_tracker[vm.vm_name]["start_timestamp"]
@@ -210,11 +199,9 @@ class VirtChecker:
virt_check_telemetry.append(VirtCheck(virt_check_tracker[vm]))
else:
virt_check_telemetry.append(VirtCheck(virt_check_tracker[vm]))
try:
virt_check_telemetry_queue.put(virt_check_telemetry)
except Exception as e:
logging.error('Put queue error ' + str(e))
def run_post_virt_check(self, vm_list_batch, virt_check_telemetry, post_virt_check_queue: queue.SimpleQueue):
virt_check_telemetry_queue.put(virt_check_telemetry)
def run_post_virt_check(self, vm_list_batch, virt_check_telemetry, post_virt_check_queue: queue.Queue):
virt_check_telemetry = []
virt_check_tracker = {}
@@ -253,7 +240,7 @@ class VirtChecker:
def gather_post_virt_checks(self, kubevirt_check_telem):
post_kubevirt_check_queue = queue.SimpleQueue()
post_kubevirt_check_queue = queue.Queue()
post_threads = []
if self.batch_size > 0:

View File

@@ -1,4 +1,2 @@
from .TeeLogHandler import TeeLogHandler
from .ErrorLog import ErrorLog
from .ErrorCollectionHandler import ErrorCollectionHandler
from .functions import *

View File

@@ -6,16 +6,17 @@ azure-identity==1.16.1
azure-keyvault==4.2.0
azure-mgmt-compute==30.5.0
azure-mgmt-network==27.0.0
itsdangerous==2.0.1
coverage==7.6.12
datetime==5.4
docker>=6.0,<7.0 # docker 7.0+ has breaking changes with Unix sockets
docker==7.0.0
gitpython==3.1.41
google-auth==2.37.0
google-cloud-compute==1.22.0
ibm_cloud_sdk_core==3.18.0
ibm_vpc==0.20.0
jinja2==3.1.6
krkn-lib==6.0.1
krkn-lib==5.1.12
lxml==5.1.0
kubernetes==34.1.0
numpy==1.26.4
@@ -27,13 +28,13 @@ pyfiglet==1.0.2
pytest==8.0.0
python-ipmi==0.5.4
python-openstackclient==6.5.0
requests<2.32 # requests 2.32+ breaks Unix socket support (http+docker scheme)
requests-unixsocket>=0.4.0 # Required for Docker Unix socket support
requests==2.32.4
service_identity==24.1.0
PyYAML==6.0.1
setuptools==78.1.1
wheel>=0.44.0
zope.interface==6.1
werkzeug==3.0.6
wheel==0.42.0
zope.interface==5.4.0
git+https://github.com/vmware/vsphere-automation-sdk-python.git@v8.0.0.0
cryptography>=42.0.4 # not directly required, pinned by Snyk to avoid a vulnerability

View File

@@ -27,7 +27,7 @@ from krkn_lib.models.telemetry import ChaosRunTelemetry
from krkn_lib.utils import SafeLogger
from krkn_lib.utils.functions import get_yaml_item_value, get_junit_test_case
from krkn.utils import TeeLogHandler, ErrorCollectionHandler
from krkn.utils import TeeLogHandler
from krkn.utils.HealthChecker import HealthChecker
from krkn.utils.VirtChecker import VirtChecker
from krkn.scenario_plugins.scenario_plugin_factory import (
@@ -141,7 +141,7 @@ def main(options, command: Optional[str]) -> int:
logging.error(
"Cannot read the kubeconfig file at %s, please check" % kubeconfig_path
)
return -1
return 1
logging.info("Initializing client to talk to the Kubernetes cluster")
# Generate uuid for the run
@@ -184,10 +184,10 @@ def main(options, command: Optional[str]) -> int:
# Set up kraken url to track signal
if not 0 <= int(port) <= 65535:
logging.error("%s isn't a valid port number, please check" % (port))
return -1
return 1
if not signal_address:
logging.error("Please set the signal address in the config")
return -1
return 1
address = (signal_address, port)
# If publish_running_status is False this should keep us going
@@ -220,7 +220,7 @@ def main(options, command: Optional[str]) -> int:
"invalid distribution selected, running openshift scenarios against kubernetes cluster."
"Please set 'kubernetes' in config.yaml krkn.platform and try again"
)
return -1
return 1
if cv != "":
logging.info(cv)
else:
@@ -326,7 +326,7 @@ def main(options, command: Optional[str]) -> int:
args=(health_check_config, health_check_telemetry_queue))
health_check_worker.start()
kubevirt_check_telemetry_queue = queue.SimpleQueue()
kubevirt_check_telemetry_queue = queue.Queue()
kubevirt_checker = VirtChecker(kubevirt_check_config, iterations=iterations, krkn_lib=kubecli)
kubevirt_checker.batch_list(kubevirt_check_telemetry_queue)
@@ -361,7 +361,7 @@ def main(options, command: Optional[str]) -> int:
logging.error(
f"impossible to find scenario {scenario_type}, plugin not found. Exiting"
)
sys.exit(-1)
sys.exit(1)
failed_post_scenarios, scenario_telemetries = (
scenario_plugin.run_scenarios(
@@ -393,7 +393,8 @@ def main(options, command: Optional[str]) -> int:
iteration += 1
health_checker.current_iterations += 1
kubevirt_checker.increment_iterations()
kubevirt_checker.current_iterations += 1
# telemetry
# in order to print decoded telemetry data even if telemetry collection
# is disabled, it's necessary to serialize the ChaosRunTelemetry object
@@ -410,7 +411,6 @@ def main(options, command: Optional[str]) -> int:
while not kubevirt_check_telemetry_queue.empty():
kubevirt_check_telem.extend(kubevirt_check_telemetry_queue.get_nowait())
chaos_telemetry.virt_checks = kubevirt_check_telem
post_kubevirt_check = kubevirt_checker.gather_post_virt_checks(kubevirt_check_telem)
chaos_telemetry.post_virt_checks = post_kubevirt_check
# if platform is openshift will be collected
@@ -425,22 +425,16 @@ def main(options, command: Optional[str]) -> int:
logging.info("collecting Kubernetes cluster metadata....")
telemetry_k8s.collect_cluster_metadata(chaos_telemetry)
# Collect error logs from handler
error_logs = error_collection_handler.get_error_logs()
if error_logs:
logging.info(f"Collected {len(error_logs)} error logs for telemetry")
chaos_telemetry.error_logs = error_logs
else:
logging.info("No error logs collected during chaos run")
chaos_telemetry.error_logs = []
telemetry_json = chaos_telemetry.to_json()
decoded_chaos_run_telemetry = ChaosRunTelemetry(json.loads(telemetry_json))
chaos_output.telemetry = decoded_chaos_run_telemetry
logging.info(f"Chaos data:\n{chaos_output.to_json()}")
if enable_elastic:
elastic_telemetry = ElasticChaosRunTelemetry(
chaos_run_telemetry=decoded_chaos_run_telemetry
)
result = elastic_search.push_telemetry(
decoded_chaos_run_telemetry, elastic_telemetry_index
elastic_telemetry, elastic_telemetry_index
)
if result == -1:
safe_logger.error(
@@ -528,7 +522,7 @@ def main(options, command: Optional[str]) -> int:
else:
logging.error("Alert profile is not defined")
return -1
return 1
# sys.exit(1)
if enable_metrics:
logging.info(f'Capturing metrics using file {metrics_profile}')
@@ -543,20 +537,17 @@ def main(options, command: Optional[str]) -> int:
telemetry_json
)
# want to exit with 1 first to show failure of scenario
# even if alerts failing
if failed_post_scenarios:
logging.error(
"Post scenarios are still failing at the end of all iterations"
)
# sys.exit(1)
return 1
if post_critical_alerts > 0:
logging.error("Critical alerts are firing, please check; exiting")
# sys.exit(2)
return 2
if failed_post_scenarios:
logging.error(
"Post scenarios are still failing at the end of all iterations"
)
# sys.exit(2)
return 2
if health_checker.ret_value != 0:
logging.error("Health check failed for the applications, Please check; exiting")
return health_checker.ret_value
@@ -572,7 +563,7 @@ def main(options, command: Optional[str]) -> int:
else:
logging.error("Cannot find a config at %s, please check" % (cfg))
# sys.exit(1)
return -1
return 2
return 0
@@ -652,13 +643,10 @@ if __name__ == "__main__":
# If no command or regular execution, continue with existing logic
report_file = options.output
tee_handler = TeeLogHandler()
error_collection_handler = ErrorCollectionHandler(level=logging.ERROR)
handlers = [
logging.FileHandler(report_file, mode="w"),
logging.StreamHandler(),
tee_handler,
error_collection_handler,
]
logging.basicConfig(
@@ -744,4 +732,4 @@ if __name__ == "__main__":
with open(junit_testcase_file_path, "w") as stream:
stream.write(junit_testcase_xml)
sys.exit(retval)
sys.exit(retval)

View File

@@ -1,18 +1,16 @@
node_scenarios:
- actions: # node chaos scenarios to be injected
- node_stop_start_scenario
# node_name: kind-control-plane # node on which scenario has to be injected; can set multiple names separated by comma
label_selector: kubernetes.io/hostname=kind-worker # when node_name is not specified, a node with matching label_selector is selected for node chaos scenario injection
node_name: kind-worker # node on which scenario has to be injected; can set multiple names separated by comma
# label_selector: node-role.kubernetes.io/worker # when node_name is not specified, a node with matching label_selector is selected for node chaos scenario injection
instance_count: 1 # Number of nodes to perform action/select that match the label selector
runs: 1 # number of times to inject each scenario under actions (will perform on same node each time)
timeout: 120 # duration to wait for completion of node scenario injection
cloud_type: docker # cloud type on which Kubernetes/OpenShift runs
duration: 10
- actions:
- node_reboot_scenario
node_name: kind-control-plane
# label_selector: kubernetes.io/hostname=kind-worker
node_name: kind-worker
# label_selector: node-role.kubernetes.io/infra
instance_count: 1
timeout: 120
cloud_type: docker
kube_check: false

View File

@@ -3,4 +3,3 @@
namespace_pattern: "kube-system"
label_selector: "component=etcd"
krkn_pod_recovery_time: 120
kill: 1

View File

@@ -1,7 +0,0 @@
pvc_scenario:
pvc_name: kraken-test-pvc # Name of the target PVC
pod_name: kraken-test-pod # Name of the pod where the PVC is mounted, it will be ignored if the pvc_name is defined
namespace: kraken # Namespace where the PVC is
fill_percentage: 98 # Target percentage to fill up the cluster, value must be higher than current percentage, valid values are between 0 and 99
duration: 10 # Duration in seconds for the fault
block_size: 102400 # used only by dd if fallocate not present in the container

View File

@@ -10,7 +10,6 @@ node_scenarios:
cloud_type: aws # cloud type on which Kubernetes/OpenShift runs
parallel: true # Run action on label or node name in parallel or sequential, defaults to sequential
kube_check: true # Run the kubernetes api calls to see if the node gets to a certain state during the node scenario
poll_interval: 15 # Time interval(in seconds) to periodically check the node's status
- actions:
- node_reboot_scenario
node_name:

View File

@@ -0,0 +1,64 @@
import unittest
import logging
from arcaflow_plugin_sdk import plugin
from krkn.scenario_plugins.native.network import ingress_shaping
class NetworkScenariosTest(unittest.TestCase):
def test_serialization(self):
plugin.test_object_serialization(
ingress_shaping.NetworkScenarioConfig(
node_interface_name={"foo": ["bar"]},
network_params={
"latency": "50ms",
"loss": "0.02",
"bandwidth": "100mbit",
},
),
self.fail,
)
plugin.test_object_serialization(
ingress_shaping.NetworkScenarioSuccessOutput(
filter_direction="ingress",
test_interfaces={"foo": ["bar"]},
network_parameters={
"latency": "50ms",
"loss": "0.02",
"bandwidth": "100mbit",
},
execution_type="parallel",
),
self.fail,
)
plugin.test_object_serialization(
ingress_shaping.NetworkScenarioErrorOutput(
error="Hello World",
),
self.fail,
)
def test_network_chaos(self):
output_id, output_data = ingress_shaping.network_chaos(
params=ingress_shaping.NetworkScenarioConfig(
label_selector="node-role.kubernetes.io/control-plane",
instance_count=1,
network_params={
"latency": "50ms",
"loss": "0.02",
"bandwidth": "100mbit",
},
),
run_id="network-shaping-test",
)
if output_id == "error":
logging.error(output_data.error)
self.fail(
"The network chaos scenario did not complete successfully "
"because an error/exception occurred"
)
if __name__ == "__main__":
unittest.main()

View File

@@ -0,0 +1,215 @@
import unittest
import time
from unittest.mock import MagicMock, patch
import yaml
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.models.telemetry import ScenarioTelemetry
from krkn_lib.telemetry.ocp import KrknTelemetryOpenshift
from krkn.scenario_plugins.kubevirt_vm_outage.kubevirt_vm_outage_scenario_plugin import KubevirtVmOutageScenarioPlugin
class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
def setUp(self):
"""
Set up test fixtures for KubevirtVmOutageScenarioPlugin
"""
self.plugin = KubevirtVmOutageScenarioPlugin()
# Create mock k8s client
self.k8s_client = MagicMock()
self.custom_object_client = MagicMock()
self.k8s_client.custom_object_client = self.custom_object_client
self.plugin.k8s_client = self.k8s_client
# Mock methods needed for KubeVirt operations
self.k8s_client.list_custom_resource_definition = MagicMock()
# Mock custom resource definition list with KubeVirt CRDs
crd_list = MagicMock()
crd_item = MagicMock()
crd_item.spec = MagicMock()
crd_item.spec.group = "kubevirt.io"
crd_list.items = [crd_item]
self.k8s_client.list_custom_resource_definition.return_value = crd_list
# Mock VMI data
self.mock_vmi = {
"metadata": {
"name": "test-vm",
"namespace": "default"
},
"status": {
"phase": "Running"
}
}
# Create test config
self.config = {
"scenarios": [
{
"name": "kubevirt outage test",
"scenario": "kubevirt_vm_outage",
"parameters": {
"vm_name": "test-vm",
"namespace": "default",
"duration": 0
}
}
]
}
# Create a temporary config file
import tempfile, os
temp_dir = tempfile.gettempdir()
self.scenario_file = os.path.join(temp_dir, "test_kubevirt_scenario.yaml")
with open(self.scenario_file, "w") as f:
yaml.dump(self.config, f)
# Mock dependencies
self.telemetry = MagicMock(spec=KrknTelemetryOpenshift)
self.scenario_telemetry = MagicMock(spec=ScenarioTelemetry)
self.telemetry.get_lib_kubernetes.return_value = self.k8s_client
def test_successful_injection_and_recovery(self):
"""
Test successful deletion and recovery of a VMI
"""
# Mock get_vmi to return our mock VMI
with patch.object(self.plugin, 'get_vmi', return_value=self.mock_vmi):
# Mock inject and recover to simulate success
with patch.object(self.plugin, 'inject', return_value=0) as mock_inject:
with patch.object(self.plugin, 'recover', return_value=0) as mock_recover:
with patch("builtins.open", unittest.mock.mock_open(read_data=yaml.dump(self.config))):
result = self.plugin.run("test-uuid", self.scenario_file, {}, self.telemetry, self.scenario_telemetry)
self.assertEqual(result, 0)
mock_inject.assert_called_once_with("test-vm", "default", False)
mock_recover.assert_called_once_with("test-vm", "default", False)
def test_injection_failure(self):
"""
Test failure during VMI deletion
"""
# Mock get_vmi to return our mock VMI
with patch.object(self.plugin, 'get_vmi', return_value=self.mock_vmi):
# Mock inject to simulate failure
with patch.object(self.plugin, 'inject', return_value=1) as mock_inject:
with patch.object(self.plugin, 'recover', return_value=0) as mock_recover:
with patch("builtins.open", unittest.mock.mock_open(read_data=yaml.dump(self.config))):
result = self.plugin.run("test-uuid", self.scenario_file, {}, self.telemetry, self.scenario_telemetry)
self.assertEqual(result, 1)
mock_inject.assert_called_once_with("test-vm", "default", False)
mock_recover.assert_not_called()
def test_disable_auto_restart(self):
"""
Test VM auto-restart can be disabled
"""
# Configure test with disable_auto_restart=True
self.config["scenarios"][0]["parameters"]["disable_auto_restart"] = True
# Mock VM object for patching
mock_vm = {
"metadata": {"name": "test-vm", "namespace": "default"},
"spec": {}
}
# Mock get_vmi to return our mock VMI
with patch.object(self.plugin, 'get_vmi', return_value=self.mock_vmi):
# Mock VM patch operation
with patch.object(self.plugin, 'patch_vm_spec') as mock_patch_vm:
mock_patch_vm.return_value = True
# Mock inject and recover
with patch.object(self.plugin, 'inject', return_value=0) as mock_inject:
with patch.object(self.plugin, 'recover', return_value=0) as mock_recover:
with patch("builtins.open", unittest.mock.mock_open(read_data=yaml.dump(self.config))):
result = self.plugin.run("test-uuid", self.scenario_file, {}, self.telemetry, self.scenario_telemetry)
self.assertEqual(result, 0)
# Should call patch_vm_spec to disable auto-restart
mock_patch_vm.assert_any_call("test-vm", "default", False)
# Should call patch_vm_spec to re-enable auto-restart during recovery
mock_patch_vm.assert_any_call("test-vm", "default", True)
mock_inject.assert_called_once_with("test-vm", "default", True)
mock_recover.assert_called_once_with("test-vm", "default", True)
def test_recovery_when_vmi_does_not_exist(self):
"""
Test recovery logic when VMI does not exist after deletion
"""
# Store the original VMI in the plugin for recovery
self.plugin.original_vmi = self.mock_vmi.copy()
# Create a cleaned vmi_dict as the plugin would
vmi_dict = self.mock_vmi.copy()
# Set up running VMI data for after recovery
running_vmi = {
"metadata": {"name": "test-vm", "namespace": "default"},
"status": {"phase": "Running"}
}
# Set up time.time to immediately exceed the timeout for auto-recovery
with patch('time.time', side_effect=[0, 301, 301, 301, 301, 310, 320]):
# Mock get_vmi to always return None (not auto-recovered)
with patch.object(self.plugin, 'get_vmi', side_effect=[None, None, running_vmi]):
# Mock the custom object API to return success
self.custom_object_client.create_namespaced_custom_object = MagicMock(return_value=running_vmi)
# Run recovery with mocked time.sleep
with patch('time.sleep'):
result = self.plugin.recover("test-vm", "default", False)
self.assertEqual(result, 0)
# Verify create was called with the right arguments for our API version and kind
self.custom_object_client.create_namespaced_custom_object.assert_called_once_with(
group="kubevirt.io",
version="v1",
namespace="default",
plural="virtualmachineinstances",
body=vmi_dict
)
def test_validation_failure(self):
"""
Test validation failure when KubeVirt is not installed
"""
# Mock empty CRD list (no KubeVirt CRDs)
empty_crd_list = MagicMock()
empty_crd_list.items = []
self.k8s_client.list_custom_resource_definition.return_value = empty_crd_list
with patch("builtins.open", unittest.mock.mock_open(read_data=yaml.dump(self.config))):
result = self.plugin.run("test-uuid", self.scenario_file, {}, self.telemetry, self.scenario_telemetry)
self.assertEqual(result, 1)
def test_delete_vmi_timeout(self):
"""
Test timeout during VMI deletion
"""
# Mock successful delete operation
self.custom_object_client.delete_namespaced_custom_object = MagicMock(return_value={})
# Mock that get_vmi always returns VMI (never gets deleted)
with patch.object(self.plugin, 'get_vmi', return_value=self.mock_vmi):
# Simulate timeout by making time.time return values that exceed the timeout
with patch('time.sleep'), patch('time.time', side_effect=[0, 10, 20, 130, 130, 130, 130, 140]):
result = self.plugin.inject("test-vm", "default", False)
self.assertEqual(result, 1)
self.custom_object_client.delete_namespaced_custom_object.assert_called_once_with(
group="kubevirt.io",
version="v1",
namespace="default",
plural="virtualmachineinstances",
name="test-vm"
)
if __name__ == "__main__":
unittest.main()

View File

@@ -1,415 +0,0 @@
"""
Test suite for AbstractNode Scenarios
Usage:
python -m coverage run -a -m unittest tests/test_abstract_node_scenarios.py
Assisted By: Claude Code
"""
import unittest
from unittest.mock import Mock, patch
from krkn.scenario_plugins.node_actions.abstract_node_scenarios import abstract_node_scenarios
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.models.k8s import AffectedNode, AffectedNodeStatus
class TestAbstractNodeScenarios(unittest.TestCase):
"""Test suite for abstract_node_scenarios class"""
def setUp(self):
"""Set up test fixtures before each test method"""
self.mock_kubecli = Mock(spec=KrknKubernetes)
self.mock_affected_nodes_status = Mock(spec=AffectedNodeStatus)
self.mock_affected_nodes_status.affected_nodes = []
self.node_action_kube_check = True
self.scenarios = abstract_node_scenarios(
kubecli=self.mock_kubecli,
node_action_kube_check=self.node_action_kube_check,
affected_nodes_status=self.mock_affected_nodes_status
)
def test_init(self):
"""Test initialization of abstract_node_scenarios"""
self.assertEqual(self.scenarios.kubecli, self.mock_kubecli)
self.assertEqual(self.scenarios.affected_nodes_status, self.mock_affected_nodes_status)
self.assertTrue(self.scenarios.node_action_kube_check)
@patch('time.sleep')
@patch('logging.info')
def test_node_stop_start_scenario(self, mock_logging, mock_sleep):
"""Test node_stop_start_scenario calls stop and start in sequence"""
# Arrange
instance_kill_count = 1
node = "test-node"
timeout = 300
duration = 60
poll_interval = 10
self.scenarios.node_stop_scenario = Mock()
self.scenarios.node_start_scenario = Mock()
# Act
self.scenarios.node_stop_start_scenario(
instance_kill_count, node, timeout, duration, poll_interval
)
# Assert
self.scenarios.node_stop_scenario.assert_called_once_with(
instance_kill_count, node, timeout, poll_interval
)
mock_sleep.assert_called_once_with(duration)
self.scenarios.node_start_scenario.assert_called_once_with(
instance_kill_count, node, timeout, poll_interval
)
self.mock_affected_nodes_status.merge_affected_nodes.assert_called_once()
@patch('logging.info')
def test_helper_node_stop_start_scenario(self, mock_logging):
"""Test helper_node_stop_start_scenario calls helper stop and start"""
# Arrange
instance_kill_count = 1
node = "helper-node"
timeout = 300
self.scenarios.helper_node_stop_scenario = Mock()
self.scenarios.helper_node_start_scenario = Mock()
# Act
self.scenarios.helper_node_stop_start_scenario(instance_kill_count, node, timeout)
# Assert
self.scenarios.helper_node_stop_scenario.assert_called_once_with(
instance_kill_count, node, timeout
)
self.scenarios.helper_node_start_scenario.assert_called_once_with(
instance_kill_count, node, timeout
)
@patch('time.sleep')
@patch('logging.info')
def test_node_disk_detach_attach_scenario_success(self, mock_logging, mock_sleep):
"""Test disk detach/attach scenario with valid disk attachment"""
# Arrange
instance_kill_count = 1
node = "test-node"
timeout = 300
duration = 60
disk_details = {"disk_id": "disk-123", "device": "/dev/sdb"}
self.scenarios.get_disk_attachment_info = Mock(return_value=disk_details)
self.scenarios.disk_detach_scenario = Mock()
self.scenarios.disk_attach_scenario = Mock()
# Act
self.scenarios.node_disk_detach_attach_scenario(
instance_kill_count, node, timeout, duration
)
# Assert
self.scenarios.get_disk_attachment_info.assert_called_once_with(
instance_kill_count, node
)
self.scenarios.disk_detach_scenario.assert_called_once_with(
instance_kill_count, node, timeout
)
mock_sleep.assert_called_once_with(duration)
self.scenarios.disk_attach_scenario.assert_called_once_with(
instance_kill_count, disk_details, timeout
)
@patch('logging.error')
@patch('logging.info')
def test_node_disk_detach_attach_scenario_no_disk(self, mock_info, mock_error):
"""Test disk detach/attach scenario when only root disk exists"""
# Arrange
instance_kill_count = 1
node = "test-node"
timeout = 300
duration = 60
self.scenarios.get_disk_attachment_info = Mock(return_value=None)
self.scenarios.disk_detach_scenario = Mock()
self.scenarios.disk_attach_scenario = Mock()
# Act
self.scenarios.node_disk_detach_attach_scenario(
instance_kill_count, node, timeout, duration
)
# Assert
self.scenarios.disk_detach_scenario.assert_not_called()
self.scenarios.disk_attach_scenario.assert_not_called()
mock_error.assert_any_call("Node %s has only root disk attached" % node)
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.nodeaction.wait_for_unknown_status')
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.runcommand.run')
@patch('logging.info')
def test_stop_kubelet_scenario_success(self, mock_logging, mock_run, mock_wait):
"""Test successful kubelet stop scenario"""
# Arrange
instance_kill_count = 2
node = "test-node"
timeout = 300
mock_affected_node = Mock(spec=AffectedNode)
mock_wait.return_value = None
# Act
with patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.AffectedNode') as mock_affected_node_class:
mock_affected_node_class.return_value = mock_affected_node
self.scenarios.stop_kubelet_scenario(instance_kill_count, node, timeout)
# Assert
self.assertEqual(mock_run.call_count, 2)
expected_command = "oc debug node/" + node + " -- chroot /host systemctl stop kubelet"
mock_run.assert_called_with(expected_command)
self.assertEqual(mock_wait.call_count, 2)
self.assertEqual(len(self.mock_affected_nodes_status.affected_nodes), 2)
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.nodeaction.wait_for_unknown_status')
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.runcommand.run')
@patch('logging.error')
@patch('logging.info')
def test_stop_kubelet_scenario_failure(self, mock_info, mock_error, mock_run, mock_wait):
"""Test kubelet stop scenario when command fails"""
# Arrange
instance_kill_count = 1
node = "test-node"
timeout = 300
error_msg = "Command failed"
mock_run.side_effect = Exception(error_msg)
# Act & Assert
with self.assertRaises(Exception):
with patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.AffectedNode'):
self.scenarios.stop_kubelet_scenario(instance_kill_count, node, timeout)
mock_error.assert_any_call(
"Failed to stop the kubelet of the node. Encountered following "
"exception: %s. Test Failed" % error_msg
)
@patch('logging.info')
def test_stop_start_kubelet_scenario(self, mock_logging):
"""Test stop/start kubelet scenario"""
# Arrange
instance_kill_count = 1
node = "test-node"
timeout = 300
self.scenarios.stop_kubelet_scenario = Mock()
self.scenarios.node_reboot_scenario = Mock()
# Act
self.scenarios.stop_start_kubelet_scenario(instance_kill_count, node, timeout)
# Assert
self.scenarios.stop_kubelet_scenario.assert_called_once_with(
instance_kill_count, node, timeout
)
self.scenarios.node_reboot_scenario.assert_called_once_with(
instance_kill_count, node, timeout
)
self.mock_affected_nodes_status.merge_affected_nodes.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.nodeaction.wait_for_ready_status')
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.runcommand.run')
@patch('logging.info')
def test_restart_kubelet_scenario_success(self, mock_logging, mock_run, mock_wait):
"""Test successful kubelet restart scenario"""
# Arrange
instance_kill_count = 2
node = "test-node"
timeout = 300
mock_affected_node = Mock(spec=AffectedNode)
mock_wait.return_value = None
# Act
with patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.AffectedNode') as mock_affected_node_class:
mock_affected_node_class.return_value = mock_affected_node
self.scenarios.restart_kubelet_scenario(instance_kill_count, node, timeout)
# Assert
self.assertEqual(mock_run.call_count, 2)
expected_command = "oc debug node/" + node + " -- chroot /host systemctl restart kubelet &"
mock_run.assert_called_with(expected_command)
self.assertEqual(mock_wait.call_count, 2)
self.assertEqual(len(self.mock_affected_nodes_status.affected_nodes), 2)
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.nodeaction.wait_for_ready_status')
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.runcommand.run')
@patch('logging.error')
@patch('logging.info')
def test_restart_kubelet_scenario_failure(self, mock_info, mock_error, mock_run, mock_wait):
"""Test kubelet restart scenario when command fails"""
# Arrange
instance_kill_count = 1
node = "test-node"
timeout = 300
error_msg = "Restart failed"
mock_run.side_effect = Exception(error_msg)
# Act & Assert
with self.assertRaises(Exception):
with patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.AffectedNode'):
self.scenarios.restart_kubelet_scenario(instance_kill_count, node, timeout)
mock_error.assert_any_call(
"Failed to restart the kubelet of the node. Encountered following "
"exception: %s. Test Failed" % error_msg
)
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.runcommand.run')
@patch('logging.info')
def test_node_crash_scenario_success(self, mock_logging, mock_run):
"""Test successful node crash scenario"""
# Arrange
instance_kill_count = 2
node = "test-node"
timeout = 300
# Act
result = self.scenarios.node_crash_scenario(instance_kill_count, node, timeout)
# Assert
self.assertEqual(mock_run.call_count, 2)
expected_command = (
"oc debug node/" + node + " -- chroot /host "
"dd if=/dev/urandom of=/proc/sysrq-trigger"
)
mock_run.assert_called_with(expected_command)
self.assertIsNone(result)
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.runcommand.run')
@patch('logging.error')
@patch('logging.info')
def test_node_crash_scenario_failure(self, mock_info, mock_error, mock_run):
"""Test node crash scenario when command fails"""
# Arrange
instance_kill_count = 1
node = "test-node"
timeout = 300
error_msg = "Crash command failed"
mock_run.side_effect = Exception(error_msg)
# Act
result = self.scenarios.node_crash_scenario(instance_kill_count, node, timeout)
# Assert
self.assertEqual(result, 1)
mock_error.assert_any_call(
"Failed to crash the node. Encountered following exception: %s. "
"Test Failed" % error_msg
)
def test_node_start_scenario_not_implemented(self):
"""Test that node_start_scenario returns None (not implemented)"""
result = self.scenarios.node_start_scenario(1, "test-node", 300, 10)
self.assertIsNone(result)
def test_node_stop_scenario_not_implemented(self):
"""Test that node_stop_scenario returns None (not implemented)"""
result = self.scenarios.node_stop_scenario(1, "test-node", 300, 10)
self.assertIsNone(result)
def test_node_termination_scenario_not_implemented(self):
"""Test that node_termination_scenario returns None (not implemented)"""
result = self.scenarios.node_termination_scenario(1, "test-node", 300, 10)
self.assertIsNone(result)
def test_node_reboot_scenario_not_implemented(self):
"""Test that node_reboot_scenario returns None (not implemented)"""
result = self.scenarios.node_reboot_scenario(1, "test-node", 300)
self.assertIsNone(result)
def test_node_service_status_not_implemented(self):
"""Test that node_service_status returns None (not implemented)"""
result = self.scenarios.node_service_status("test-node", "service", "key", 300)
self.assertIsNone(result)
def test_node_block_scenario_not_implemented(self):
"""Test that node_block_scenario returns None (not implemented)"""
result = self.scenarios.node_block_scenario(1, "test-node", 300, 60)
self.assertIsNone(result)
class TestAbstractNodeScenariosIntegration(unittest.TestCase):
"""Integration tests for abstract_node_scenarios workflows"""
def setUp(self):
"""Set up test fixtures before each test method"""
self.mock_kubecli = Mock(spec=KrknKubernetes)
self.mock_affected_nodes_status = Mock(spec=AffectedNodeStatus)
self.mock_affected_nodes_status.affected_nodes = []
self.scenarios = abstract_node_scenarios(
kubecli=self.mock_kubecli,
node_action_kube_check=True,
affected_nodes_status=self.mock_affected_nodes_status
)
@patch('time.sleep')
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.nodeaction.wait_for_unknown_status')
@patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.runcommand.run')
def test_complete_stop_start_kubelet_workflow(self, mock_run, mock_wait, mock_sleep):
"""Test complete workflow of stop/start kubelet scenario"""
# Arrange
instance_kill_count = 1
node = "test-node"
timeout = 300
self.scenarios.node_reboot_scenario = Mock()
# Act
with patch('krkn.scenario_plugins.node_actions.abstract_node_scenarios.AffectedNode'):
self.scenarios.stop_start_kubelet_scenario(instance_kill_count, node, timeout)
# Assert - verify stop kubelet was called
expected_stop_command = "oc debug node/" + node + " -- chroot /host systemctl stop kubelet"
mock_run.assert_any_call(expected_stop_command)
# Verify reboot was called
self.scenarios.node_reboot_scenario.assert_called_once_with(
instance_kill_count, node, timeout
)
# Verify merge was called
self.mock_affected_nodes_status.merge_affected_nodes.assert_called_once()
@patch('time.sleep')
def test_node_stop_start_scenario_workflow(self, mock_sleep):
"""Test complete workflow of node stop/start scenario"""
# Arrange
instance_kill_count = 1
node = "test-node"
timeout = 300
duration = 60
poll_interval = 10
self.scenarios.node_stop_scenario = Mock()
self.scenarios.node_start_scenario = Mock()
# Act
self.scenarios.node_stop_start_scenario(
instance_kill_count, node, timeout, duration, poll_interval
)
# Assert - verify order of operations
call_order = []
# Verify stop was called first
self.scenarios.node_stop_scenario.assert_called_once()
# Verify sleep was called
mock_sleep.assert_called_once_with(duration)
# Verify start was called after sleep
self.scenarios.node_start_scenario.assert_called_once()
# Verify merge was called
self.mock_affected_nodes_status.merge_affected_nodes.assert_called_once()
if __name__ == '__main__':
unittest.main()

View File

@@ -1,680 +0,0 @@
#!/usr/bin/env python3
"""
Test suite for alibaba_node_scenarios class
Usage:
python -m coverage run -a -m unittest tests/test_alibaba_node_scenarios.py -v
Assisted By: Claude Code
"""
import unittest
from unittest.mock import MagicMock, Mock, patch, PropertyMock, call
import logging
import json
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.models.k8s import AffectedNode, AffectedNodeStatus
from krkn.scenario_plugins.node_actions.alibaba_node_scenarios import Alibaba, alibaba_node_scenarios
class TestAlibaba(unittest.TestCase):
"""Test suite for Alibaba class"""
def setUp(self):
"""Set up test fixtures"""
# Mock environment variables
self.env_patcher = patch.dict('os.environ', {
'ALIBABA_ID': 'test-access-key',
'ALIBABA_SECRET': 'test-secret-key',
'ALIBABA_REGION_ID': 'cn-hangzhou'
})
self.env_patcher.start()
def tearDown(self):
"""Clean up after tests"""
self.env_patcher.stop()
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_alibaba_init_success(self, mock_acs_client, mock_logging):
"""Test Alibaba class initialization"""
mock_client = Mock()
mock_acs_client.return_value = mock_client
alibaba = Alibaba()
mock_acs_client.assert_called_once_with('test-access-key', 'test-secret-key', 'cn-hangzhou')
self.assertEqual(alibaba.compute_client, mock_client)
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_alibaba_init_failure(self, mock_acs_client, mock_logging):
"""Test Alibaba initialization handles errors"""
mock_acs_client.side_effect = Exception("Credential error")
alibaba = Alibaba()
mock_logging.assert_called()
self.assertIn("Initializing alibaba", str(mock_logging.call_args))
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_send_request_success(self, mock_acs_client):
"""Test _send_request successfully sends request"""
alibaba = Alibaba()
mock_request = Mock()
mock_response = {'Instances': {'Instance': []}}
alibaba.compute_client.do_action.return_value = json.dumps(mock_response).encode('utf-8')
result = alibaba._send_request(mock_request)
mock_request.set_accept_format.assert_called_once_with('json')
alibaba.compute_client.do_action.assert_called_once_with(mock_request)
self.assertEqual(result, mock_response)
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_send_request_failure(self, mock_acs_client, mock_logging):
"""Test _send_request handles errors"""
alibaba = Alibaba()
mock_request = Mock()
alibaba.compute_client.do_action.side_effect = Exception("API error")
# The actual code has a bug in the format string (%S instead of %s)
# So we expect this to raise a ValueError
with self.assertRaises(ValueError):
alibaba._send_request(mock_request)
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_list_instances_success(self, mock_acs_client):
"""Test list_instances returns instance list"""
alibaba = Alibaba()
mock_instances = [
{'InstanceId': 'i-123', 'InstanceName': 'node1'},
{'InstanceId': 'i-456', 'InstanceName': 'node2'}
]
mock_response = {'Instances': {'Instance': mock_instances}}
alibaba.compute_client.do_action.return_value = json.dumps(mock_response).encode('utf-8')
result = alibaba.list_instances()
self.assertEqual(result, mock_instances)
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_list_instances_no_instances_key(self, mock_acs_client, mock_logging):
"""Test list_instances handles missing Instances key"""
alibaba = Alibaba()
mock_response = {'SomeOtherKey': 'value'}
alibaba.compute_client.do_action.return_value = json.dumps(mock_response).encode('utf-8')
with self.assertRaises(RuntimeError):
alibaba.list_instances()
mock_logging.assert_called()
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_list_instances_none_response(self, mock_acs_client):
"""Test list_instances handles None response"""
alibaba = Alibaba()
alibaba._send_request = Mock(return_value=None)
result = alibaba.list_instances()
self.assertEqual(result, [])
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_list_instances_exception(self, mock_acs_client, mock_logging):
"""Test list_instances handles exceptions"""
alibaba = Alibaba()
alibaba._send_request = Mock(side_effect=Exception("Network error"))
with self.assertRaises(Exception):
alibaba.list_instances()
mock_logging.assert_called()
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_get_instance_id_found(self, mock_acs_client):
"""Test get_instance_id when instance is found"""
alibaba = Alibaba()
mock_instances = [
{'InstanceId': 'i-123', 'InstanceName': 'test-node'},
{'InstanceId': 'i-456', 'InstanceName': 'other-node'}
]
alibaba.list_instances = Mock(return_value=mock_instances)
result = alibaba.get_instance_id('test-node')
self.assertEqual(result, 'i-123')
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_get_instance_id_not_found(self, mock_acs_client, mock_logging):
"""Test get_instance_id when instance is not found"""
alibaba = Alibaba()
alibaba.list_instances = Mock(return_value=[])
with self.assertRaises(RuntimeError):
alibaba.get_instance_id('nonexistent-node')
mock_logging.assert_called()
self.assertIn("Couldn't find vm", str(mock_logging.call_args))
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_start_instances_success(self, mock_acs_client, mock_logging):
"""Test start_instances successfully starts instance"""
alibaba = Alibaba()
alibaba._send_request = Mock(return_value={'RequestId': 'req-123'})
alibaba.start_instances('i-123')
alibaba._send_request.assert_called_once()
mock_logging.assert_called()
call_str = str(mock_logging.call_args_list)
self.assertTrue('started' in call_str or 'submit successfully' in call_str)
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_start_instances_failure(self, mock_acs_client, mock_logging):
"""Test start_instances handles failure"""
alibaba = Alibaba()
alibaba._send_request = Mock(side_effect=Exception("Start failed"))
with self.assertRaises(Exception):
alibaba.start_instances('i-123')
mock_logging.assert_called()
self.assertIn("Failed to start", str(mock_logging.call_args))
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_stop_instances_success(self, mock_acs_client, mock_logging):
"""Test stop_instances successfully stops instance"""
alibaba = Alibaba()
alibaba._send_request = Mock(return_value={'RequestId': 'req-123'})
alibaba.stop_instances('i-123', force_stop=True)
alibaba._send_request.assert_called_once()
mock_logging.assert_called()
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_stop_instances_failure(self, mock_acs_client, mock_logging):
"""Test stop_instances handles failure"""
alibaba = Alibaba()
alibaba._send_request = Mock(side_effect=Exception("Stop failed"))
with self.assertRaises(Exception):
alibaba.stop_instances('i-123')
mock_logging.assert_called()
self.assertIn("Failed to stop", str(mock_logging.call_args))
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_release_instance_success(self, mock_acs_client, mock_logging):
"""Test release_instance successfully releases instance"""
alibaba = Alibaba()
alibaba._send_request = Mock(return_value={'RequestId': 'req-123'})
alibaba.release_instance('i-123', force_release=True)
alibaba._send_request.assert_called_once()
mock_logging.assert_called()
self.assertIn("released", str(mock_logging.call_args))
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_release_instance_failure(self, mock_acs_client, mock_logging):
"""Test release_instance handles failure"""
alibaba = Alibaba()
alibaba._send_request = Mock(side_effect=Exception("Release failed"))
with self.assertRaises(Exception):
alibaba.release_instance('i-123')
mock_logging.assert_called()
self.assertIn("Failed to terminate", str(mock_logging.call_args))
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_reboot_instances_success(self, mock_acs_client, mock_logging):
"""Test reboot_instances successfully reboots instance"""
alibaba = Alibaba()
alibaba._send_request = Mock(return_value={'RequestId': 'req-123'})
alibaba.reboot_instances('i-123', force_reboot=True)
alibaba._send_request.assert_called_once()
mock_logging.assert_called()
self.assertIn("rebooted", str(mock_logging.call_args))
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_reboot_instances_failure(self, mock_acs_client, mock_logging):
"""Test reboot_instances handles failure"""
alibaba = Alibaba()
alibaba._send_request = Mock(side_effect=Exception("Reboot failed"))
with self.assertRaises(Exception):
alibaba.reboot_instances('i-123')
mock_logging.assert_called()
self.assertIn("Failed to reboot", str(mock_logging.call_args))
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_get_vm_status_success(self, mock_acs_client, mock_logging):
"""Test get_vm_status returns instance status"""
alibaba = Alibaba()
mock_response = {
'Instances': {
'Instance': [{'Status': 'Running'}]
}
}
alibaba._send_request = Mock(return_value=mock_response)
result = alibaba.get_vm_status('i-123')
self.assertEqual(result, 'Running')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_get_vm_status_no_instances(self, mock_acs_client, mock_logging):
"""Test get_vm_status when no instances found"""
alibaba = Alibaba()
mock_response = {
'Instances': {
'Instance': []
}
}
alibaba._send_request = Mock(return_value=mock_response)
result = alibaba.get_vm_status('i-123')
self.assertIsNone(result)
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_get_vm_status_none_response(self, mock_acs_client, mock_logging):
"""Test get_vm_status with None response"""
alibaba = Alibaba()
alibaba._send_request = Mock(return_value=None)
result = alibaba.get_vm_status('i-123')
self.assertEqual(result, 'Unknown')
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_get_vm_status_exception(self, mock_acs_client, mock_logging):
"""Test get_vm_status handles exceptions"""
alibaba = Alibaba()
alibaba._send_request = Mock(side_effect=Exception("API error"))
result = alibaba.get_vm_status('i-123')
self.assertIsNone(result)
mock_logging.assert_called()
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_wait_until_running_success(self, mock_acs_client, mock_logging, mock_sleep):
"""Test wait_until_running waits for instance to be running"""
alibaba = Alibaba()
alibaba.get_vm_status = Mock(side_effect=['Starting', 'Running'])
mock_affected_node = Mock(spec=AffectedNode)
result = alibaba.wait_until_running('i-123', 300, mock_affected_node)
self.assertTrue(result)
mock_affected_node.set_affected_node_status.assert_called_once()
args = mock_affected_node.set_affected_node_status.call_args[0]
self.assertEqual(args[0], 'running')
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_wait_until_running_timeout(self, mock_acs_client, mock_logging, mock_sleep):
"""Test wait_until_running returns False on timeout"""
alibaba = Alibaba()
alibaba.get_vm_status = Mock(return_value='Starting')
result = alibaba.wait_until_running('i-123', 10, None)
self.assertFalse(result)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_wait_until_stopped_success(self, mock_acs_client, mock_logging, mock_sleep):
"""Test wait_until_stopped waits for instance to be stopped"""
alibaba = Alibaba()
alibaba.get_vm_status = Mock(side_effect=['Stopping', 'Stopped'])
mock_affected_node = Mock(spec=AffectedNode)
result = alibaba.wait_until_stopped('i-123', 300, mock_affected_node)
self.assertTrue(result)
mock_affected_node.set_affected_node_status.assert_called_once()
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_wait_until_stopped_timeout(self, mock_acs_client, mock_logging, mock_sleep):
"""Test wait_until_stopped returns False on timeout"""
alibaba = Alibaba()
alibaba.get_vm_status = Mock(return_value='Stopping')
result = alibaba.wait_until_stopped('i-123', 10, None)
self.assertFalse(result)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_wait_until_released_success(self, mock_acs_client, mock_logging, mock_sleep):
"""Test wait_until_released waits for instance to be released"""
alibaba = Alibaba()
alibaba.get_vm_status = Mock(side_effect=['Deleting', 'Released'])
mock_affected_node = Mock(spec=AffectedNode)
result = alibaba.wait_until_released('i-123', 300, mock_affected_node)
self.assertTrue(result)
mock_affected_node.set_affected_node_status.assert_called_once()
args = mock_affected_node.set_affected_node_status.call_args[0]
self.assertEqual(args[0], 'terminated')
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_wait_until_released_timeout(self, mock_acs_client, mock_logging, mock_sleep):
"""Test wait_until_released returns False on timeout"""
alibaba = Alibaba()
alibaba.get_vm_status = Mock(return_value='Deleting')
result = alibaba.wait_until_released('i-123', 10, None)
self.assertFalse(result)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.AcsClient')
def test_wait_until_released_none_status(self, mock_acs_client, mock_logging, mock_sleep):
"""Test wait_until_released when status becomes None"""
alibaba = Alibaba()
alibaba.get_vm_status = Mock(side_effect=['Deleting', None])
mock_affected_node = Mock(spec=AffectedNode)
result = alibaba.wait_until_released('i-123', 300, mock_affected_node)
self.assertTrue(result)
class TestAlibabaNodeScenarios(unittest.TestCase):
"""Test suite for alibaba_node_scenarios class"""
def setUp(self):
"""Set up test fixtures"""
self.env_patcher = patch.dict('os.environ', {
'ALIBABA_ID': 'test-access-key',
'ALIBABA_SECRET': 'test-secret-key',
'ALIBABA_REGION_ID': 'cn-hangzhou'
})
self.env_patcher.start()
self.mock_kubecli = Mock(spec=KrknKubernetes)
self.affected_nodes_status = AffectedNodeStatus()
def tearDown(self):
"""Clean up after tests"""
self.env_patcher.stop()
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_init(self, mock_alibaba_class, mock_logging):
"""Test alibaba_node_scenarios initialization"""
mock_alibaba_instance = Mock()
mock_alibaba_class.return_value = mock_alibaba_instance
scenarios = alibaba_node_scenarios(self.mock_kubecli, True, self.affected_nodes_status)
self.assertEqual(scenarios.kubecli, self.mock_kubecli)
self.assertTrue(scenarios.node_action_kube_check)
self.assertEqual(scenarios.alibaba, mock_alibaba_instance)
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_start_scenario_success(self, mock_alibaba_class, mock_logging, mock_nodeaction):
"""Test node_start_scenario successfully starts node"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
mock_alibaba.wait_until_running.return_value = True
scenarios = alibaba_node_scenarios(self.mock_kubecli, True, self.affected_nodes_status)
scenarios.node_start_scenario(1, 'test-node', 300, 15)
mock_alibaba.get_instance_id.assert_called_once_with('test-node')
mock_alibaba.start_instances.assert_called_once_with('i-123')
mock_alibaba.wait_until_running.assert_called_once()
mock_nodeaction.wait_for_ready_status.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_start_scenario_no_kube_check(self, mock_alibaba_class, mock_logging, mock_nodeaction):
"""Test node_start_scenario without Kubernetes check"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
mock_alibaba.wait_until_running.return_value = True
scenarios = alibaba_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
scenarios.node_start_scenario(1, 'test-node', 300, 15)
mock_alibaba.start_instances.assert_called_once()
mock_nodeaction.wait_for_ready_status.assert_not_called()
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_start_scenario_failure(self, mock_alibaba_class, mock_logging):
"""Test node_start_scenario handles failure"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
mock_alibaba.start_instances.side_effect = Exception('Start failed')
scenarios = alibaba_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
with self.assertRaises(Exception):
scenarios.node_start_scenario(1, 'test-node', 300, 15)
mock_logging.assert_called()
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_start_scenario_multiple_runs(self, mock_alibaba_class, mock_logging, mock_nodeaction):
"""Test node_start_scenario with multiple runs"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
mock_alibaba.wait_until_running.return_value = True
scenarios = alibaba_node_scenarios(self.mock_kubecli, True, self.affected_nodes_status)
scenarios.node_start_scenario(3, 'test-node', 300, 15)
self.assertEqual(mock_alibaba.start_instances.call_count, 3)
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 3)
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_stop_scenario_success(self, mock_alibaba_class, mock_logging, mock_nodeaction):
"""Test node_stop_scenario successfully stops node"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
mock_alibaba.wait_until_stopped.return_value = True
scenarios = alibaba_node_scenarios(self.mock_kubecli, True, self.affected_nodes_status)
scenarios.node_stop_scenario(1, 'test-node', 300, 15)
mock_alibaba.get_instance_id.assert_called_once_with('test-node')
mock_alibaba.stop_instances.assert_called_once_with('i-123')
mock_alibaba.wait_until_stopped.assert_called_once()
mock_nodeaction.wait_for_unknown_status.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_stop_scenario_failure(self, mock_alibaba_class, mock_logging):
"""Test node_stop_scenario handles failure"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
mock_alibaba.stop_instances.side_effect = Exception('Stop failed')
scenarios = alibaba_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
with self.assertRaises(Exception):
scenarios.node_stop_scenario(1, 'test-node', 300, 15)
mock_logging.assert_called()
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_termination_scenario_success(self, mock_alibaba_class, mock_logging):
"""Test node_termination_scenario successfully terminates node"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
mock_alibaba.wait_until_stopped.return_value = True
mock_alibaba.wait_until_released.return_value = True
scenarios = alibaba_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
scenarios.node_termination_scenario(1, 'test-node', 300, 15)
mock_alibaba.stop_instances.assert_called_once_with('i-123')
mock_alibaba.wait_until_stopped.assert_called_once()
mock_alibaba.release_instance.assert_called_once_with('i-123')
mock_alibaba.wait_until_released.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_termination_scenario_failure(self, mock_alibaba_class, mock_logging):
"""Test node_termination_scenario handles failure"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
mock_alibaba.stop_instances.side_effect = Exception('Stop failed')
scenarios = alibaba_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
with self.assertRaises(Exception):
scenarios.node_termination_scenario(1, 'test-node', 300, 15)
mock_logging.assert_called()
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_reboot_scenario_success(self, mock_alibaba_class, mock_logging, mock_nodeaction):
"""Test node_reboot_scenario successfully reboots node"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
scenarios = alibaba_node_scenarios(self.mock_kubecli, True, self.affected_nodes_status)
scenarios.node_reboot_scenario(1, 'test-node', 300, soft_reboot=False)
mock_alibaba.reboot_instances.assert_called_once_with('i-123')
mock_nodeaction.wait_for_unknown_status.assert_called_once()
mock_nodeaction.wait_for_ready_status.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_reboot_scenario_no_kube_check(self, mock_alibaba_class, mock_logging, mock_nodeaction):
"""Test node_reboot_scenario without Kubernetes check"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
scenarios = alibaba_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
scenarios.node_reboot_scenario(1, 'test-node', 300)
mock_alibaba.reboot_instances.assert_called_once()
mock_nodeaction.wait_for_unknown_status.assert_not_called()
mock_nodeaction.wait_for_ready_status.assert_not_called()
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_reboot_scenario_failure(self, mock_alibaba_class, mock_logging):
"""Test node_reboot_scenario handles failure"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
mock_alibaba.reboot_instances.side_effect = Exception('Reboot failed')
scenarios = alibaba_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
with self.assertRaises(Exception):
scenarios.node_reboot_scenario(1, 'test-node', 300)
mock_logging.assert_called()
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.Alibaba')
def test_node_reboot_scenario_multiple_runs(self, mock_alibaba_class, mock_logging, mock_nodeaction):
"""Test node_reboot_scenario with multiple runs"""
mock_alibaba = Mock()
mock_alibaba_class.return_value = mock_alibaba
mock_alibaba.get_instance_id.return_value = 'i-123'
scenarios = alibaba_node_scenarios(self.mock_kubecli, True, self.affected_nodes_status)
scenarios.node_reboot_scenario(2, 'test-node', 300)
self.assertEqual(mock_alibaba.reboot_instances.call_count, 2)
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 2)
if __name__ == "__main__":
unittest.main()

View File

@@ -1,984 +0,0 @@
#!/usr/bin/env python3
"""
Test suite for AWS node scenarios
This test suite covers both the AWS class and aws_node_scenarios class
using mocks to avoid actual AWS API calls.
Usage:
python -m coverage run -a -m unittest tests/test_aws_node_scenarios.py -v
Assisted By: Claude Code
"""
import unittest
import sys
from unittest.mock import MagicMock, patch
# Mock external dependencies before any imports that use them
sys.modules['boto3'] = MagicMock()
sys.modules['paramiko'] = MagicMock()
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.models.k8s import AffectedNode, AffectedNodeStatus
from krkn.scenario_plugins.node_actions.aws_node_scenarios import AWS, aws_node_scenarios
class TestAWS(unittest.TestCase):
"""Test cases for AWS class"""
def setUp(self):
"""Set up test fixtures"""
# Mock boto3 to avoid actual AWS calls
self.boto_client_patcher = patch('boto3.client')
self.boto_resource_patcher = patch('boto3.resource')
self.mock_client = self.boto_client_patcher.start()
self.mock_resource = self.boto_resource_patcher.start()
# Create AWS instance with mocked boto3
self.aws = AWS()
def tearDown(self):
"""Clean up after tests"""
self.boto_client_patcher.stop()
self.boto_resource_patcher.stop()
def test_aws_init(self):
"""Test AWS class initialization"""
self.assertIsNotNone(self.aws.boto_client)
self.assertIsNotNone(self.aws.boto_resource)
self.assertIsNotNone(self.aws.boto_instance)
def test_get_instance_id_by_dns_name(self):
"""Test getting instance ID by DNS name"""
mock_response = {
'Reservations': [{
'Instances': [{
'InstanceId': 'i-1234567890abcdef0'
}]
}]
}
self.aws.boto_client.describe_instances = MagicMock(return_value=mock_response)
instance_id = self.aws.get_instance_id('ip-10-0-1-100.ec2.internal')
self.assertEqual(instance_id, 'i-1234567890abcdef0')
self.aws.boto_client.describe_instances.assert_called_once()
def test_get_instance_id_by_ip_address(self):
"""Test getting instance ID by IP address when DNS name fails"""
# First call returns empty, second call returns the instance
mock_response_empty = {'Reservations': []}
mock_response_with_instance = {
'Reservations': [{
'Instances': [{
'InstanceId': 'i-1234567890abcdef0'
}]
}]
}
self.aws.boto_client.describe_instances = MagicMock(
side_effect=[mock_response_empty, mock_response_with_instance]
)
instance_id = self.aws.get_instance_id('ip-10-0-1-100')
self.assertEqual(instance_id, 'i-1234567890abcdef0')
self.assertEqual(self.aws.boto_client.describe_instances.call_count, 2)
def test_start_instances_success(self):
"""Test starting instances successfully"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_client.start_instances = MagicMock()
self.aws.start_instances(instance_id)
self.aws.boto_client.start_instances.assert_called_once_with(
InstanceIds=[instance_id]
)
def test_start_instances_failure(self):
"""Test starting instances with failure"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_client.start_instances = MagicMock(
side_effect=Exception("AWS error")
)
with self.assertRaises(RuntimeError):
self.aws.start_instances(instance_id)
def test_stop_instances_success(self):
"""Test stopping instances successfully"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_client.stop_instances = MagicMock()
self.aws.stop_instances(instance_id)
self.aws.boto_client.stop_instances.assert_called_once_with(
InstanceIds=[instance_id]
)
def test_stop_instances_failure(self):
"""Test stopping instances with failure"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_client.stop_instances = MagicMock(
side_effect=Exception("AWS error")
)
with self.assertRaises(RuntimeError):
self.aws.stop_instances(instance_id)
def test_terminate_instances_success(self):
"""Test terminating instances successfully"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_client.terminate_instances = MagicMock()
self.aws.terminate_instances(instance_id)
self.aws.boto_client.terminate_instances.assert_called_once_with(
InstanceIds=[instance_id]
)
def test_terminate_instances_failure(self):
"""Test terminating instances with failure"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_client.terminate_instances = MagicMock(
side_effect=Exception("AWS error")
)
with self.assertRaises(RuntimeError):
self.aws.terminate_instances(instance_id)
def test_reboot_instances_success(self):
"""Test rebooting instances successfully"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_client.reboot_instances = MagicMock()
self.aws.reboot_instances(instance_id)
self.aws.boto_client.reboot_instances.assert_called_once_with(
InstanceIds=[instance_id]
)
def test_reboot_instances_failure(self):
"""Test rebooting instances with failure"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_client.reboot_instances = MagicMock(
side_effect=Exception("AWS error")
)
with self.assertRaises(RuntimeError):
self.aws.reboot_instances(instance_id)
def test_wait_until_running_success(self):
"""Test waiting until instance is running successfully"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_instance.wait_until_running = MagicMock()
result = self.aws.wait_until_running(instance_id, timeout=600, poll_interval=15)
self.assertTrue(result)
self.aws.boto_instance.wait_until_running.assert_called_once()
def test_wait_until_running_with_affected_node(self):
"""Test waiting until running with affected node tracking"""
instance_id = 'i-1234567890abcdef0'
affected_node = MagicMock(spec=AffectedNode)
self.aws.boto_instance.wait_until_running = MagicMock()
with patch('time.time', side_effect=[100, 110]):
result = self.aws.wait_until_running(
instance_id,
timeout=600,
affected_node=affected_node,
poll_interval=15
)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once_with("running", 10)
def test_wait_until_running_failure(self):
"""Test waiting until running with failure"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_instance.wait_until_running = MagicMock(
side_effect=Exception("Timeout")
)
result = self.aws.wait_until_running(instance_id)
self.assertFalse(result)
def test_wait_until_stopped_success(self):
"""Test waiting until instance is stopped successfully"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_instance.wait_until_stopped = MagicMock()
result = self.aws.wait_until_stopped(instance_id, timeout=600, poll_interval=15)
self.assertTrue(result)
self.aws.boto_instance.wait_until_stopped.assert_called_once()
def test_wait_until_stopped_with_affected_node(self):
"""Test waiting until stopped with affected node tracking"""
instance_id = 'i-1234567890abcdef0'
affected_node = MagicMock(spec=AffectedNode)
self.aws.boto_instance.wait_until_stopped = MagicMock()
with patch('time.time', side_effect=[100, 115]):
result = self.aws.wait_until_stopped(
instance_id,
timeout=600,
affected_node=affected_node,
poll_interval=15
)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once_with("stopped", 15)
def test_wait_until_stopped_failure(self):
"""Test waiting until stopped with failure"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_instance.wait_until_stopped = MagicMock(
side_effect=Exception("Timeout")
)
result = self.aws.wait_until_stopped(instance_id)
self.assertFalse(result)
def test_wait_until_terminated_success(self):
"""Test waiting until instance is terminated successfully"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_instance.wait_until_terminated = MagicMock()
result = self.aws.wait_until_terminated(instance_id, timeout=600, poll_interval=15)
self.assertTrue(result)
self.aws.boto_instance.wait_until_terminated.assert_called_once()
def test_wait_until_terminated_with_affected_node(self):
"""Test waiting until terminated with affected node tracking"""
instance_id = 'i-1234567890abcdef0'
affected_node = MagicMock(spec=AffectedNode)
self.aws.boto_instance.wait_until_terminated = MagicMock()
with patch('time.time', side_effect=[100, 120]):
result = self.aws.wait_until_terminated(
instance_id,
timeout=600,
affected_node=affected_node,
poll_interval=15
)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once_with("terminated", 20)
def test_wait_until_terminated_failure(self):
"""Test waiting until terminated with failure"""
instance_id = 'i-1234567890abcdef0'
self.aws.boto_instance.wait_until_terminated = MagicMock(
side_effect=Exception("Timeout")
)
result = self.aws.wait_until_terminated(instance_id)
self.assertFalse(result)
def test_create_default_network_acl_success(self):
"""Test creating default network ACL successfully"""
vpc_id = 'vpc-12345678'
acl_id = 'acl-12345678'
mock_response = {
'NetworkAcl': {
'NetworkAclId': acl_id
}
}
self.aws.boto_client.create_network_acl = MagicMock(return_value=mock_response)
result = self.aws.create_default_network_acl(vpc_id)
self.assertEqual(result, acl_id)
self.aws.boto_client.create_network_acl.assert_called_once_with(VpcId=vpc_id)
def test_create_default_network_acl_failure(self):
"""Test creating default network ACL with failure"""
vpc_id = 'vpc-12345678'
self.aws.boto_client.create_network_acl = MagicMock(
side_effect=Exception("AWS error")
)
with self.assertRaises(RuntimeError):
self.aws.create_default_network_acl(vpc_id)
def test_replace_network_acl_association_success(self):
"""Test replacing network ACL association successfully"""
association_id = 'aclassoc-12345678'
acl_id = 'acl-12345678'
new_association_id = 'aclassoc-87654321'
mock_response = {
'NewAssociationId': new_association_id
}
self.aws.boto_client.replace_network_acl_association = MagicMock(
return_value=mock_response
)
result = self.aws.replace_network_acl_association(association_id, acl_id)
self.assertEqual(result, new_association_id)
self.aws.boto_client.replace_network_acl_association.assert_called_once_with(
AssociationId=association_id, NetworkAclId=acl_id
)
def test_replace_network_acl_association_failure(self):
"""Test replacing network ACL association with failure"""
association_id = 'aclassoc-12345678'
acl_id = 'acl-12345678'
self.aws.boto_client.replace_network_acl_association = MagicMock(
side_effect=Exception("AWS error")
)
with self.assertRaises(RuntimeError):
self.aws.replace_network_acl_association(association_id, acl_id)
def test_describe_network_acls_success(self):
"""Test describing network ACLs successfully"""
vpc_id = 'vpc-12345678'
subnet_id = 'subnet-12345678'
acl_id = 'acl-12345678'
associations = [{'NetworkAclId': acl_id, 'SubnetId': subnet_id}]
mock_response = {
'NetworkAcls': [{
'Associations': associations
}]
}
self.aws.boto_client.describe_network_acls = MagicMock(return_value=mock_response)
result_associations, result_acl_id = self.aws.describe_network_acls(vpc_id, subnet_id)
self.assertEqual(result_associations, associations)
self.assertEqual(result_acl_id, acl_id)
def test_describe_network_acls_failure(self):
"""Test describing network ACLs with failure"""
vpc_id = 'vpc-12345678'
subnet_id = 'subnet-12345678'
self.aws.boto_client.describe_network_acls = MagicMock(
side_effect=Exception("AWS error")
)
with self.assertRaises(RuntimeError):
self.aws.describe_network_acls(vpc_id, subnet_id)
def test_delete_network_acl_success(self):
"""Test deleting network ACL successfully"""
acl_id = 'acl-12345678'
self.aws.boto_client.delete_network_acl = MagicMock()
self.aws.delete_network_acl(acl_id)
self.aws.boto_client.delete_network_acl.assert_called_once_with(NetworkAclId=acl_id)
def test_delete_network_acl_failure(self):
"""Test deleting network ACL with failure"""
acl_id = 'acl-12345678'
self.aws.boto_client.delete_network_acl = MagicMock(
side_effect=Exception("AWS error")
)
with self.assertRaises(RuntimeError):
self.aws.delete_network_acl(acl_id)
def test_detach_volumes_success(self):
"""Test detaching volumes successfully"""
volume_ids = ['vol-12345678', 'vol-87654321']
self.aws.boto_client.detach_volume = MagicMock()
self.aws.detach_volumes(volume_ids)
self.assertEqual(self.aws.boto_client.detach_volume.call_count, 2)
self.aws.boto_client.detach_volume.assert_any_call(VolumeId='vol-12345678', Force=True)
self.aws.boto_client.detach_volume.assert_any_call(VolumeId='vol-87654321', Force=True)
def test_detach_volumes_partial_failure(self):
"""Test detaching volumes with partial failure"""
volume_ids = ['vol-12345678', 'vol-87654321']
# First call succeeds, second fails - should not raise exception
self.aws.boto_client.detach_volume = MagicMock(
side_effect=[None, Exception("AWS error")]
)
# Should not raise exception, just log error
self.aws.detach_volumes(volume_ids)
self.assertEqual(self.aws.boto_client.detach_volume.call_count, 2)
def test_attach_volume_success(self):
"""Test attaching volume successfully"""
attachment = {
'VolumeId': 'vol-12345678',
'InstanceId': 'i-1234567890abcdef0',
'Device': '/dev/sdf'
}
mock_volume = MagicMock()
mock_volume.state = 'available'
self.aws.boto_resource.Volume = MagicMock(return_value=mock_volume)
self.aws.boto_client.attach_volume = MagicMock()
self.aws.attach_volume(attachment)
self.aws.boto_client.attach_volume.assert_called_once_with(
InstanceId=attachment['InstanceId'],
Device=attachment['Device'],
VolumeId=attachment['VolumeId']
)
def test_attach_volume_already_in_use(self):
"""Test attaching volume that is already in use"""
attachment = {
'VolumeId': 'vol-12345678',
'InstanceId': 'i-1234567890abcdef0',
'Device': '/dev/sdf'
}
mock_volume = MagicMock()
mock_volume.state = 'in-use'
self.aws.boto_resource.Volume = MagicMock(return_value=mock_volume)
self.aws.boto_client.attach_volume = MagicMock()
self.aws.attach_volume(attachment)
# Should not attempt to attach
self.aws.boto_client.attach_volume.assert_not_called()
def test_attach_volume_failure(self):
"""Test attaching volume with failure"""
attachment = {
'VolumeId': 'vol-12345678',
'InstanceId': 'i-1234567890abcdef0',
'Device': '/dev/sdf'
}
mock_volume = MagicMock()
mock_volume.state = 'available'
self.aws.boto_resource.Volume = MagicMock(return_value=mock_volume)
self.aws.boto_client.attach_volume = MagicMock(
side_effect=Exception("AWS error")
)
with self.assertRaises(RuntimeError):
self.aws.attach_volume(attachment)
def test_get_volumes_ids(self):
"""Test getting volume IDs from instance"""
instance_id = ['i-1234567890abcdef0']
mock_response = {
'Reservations': [{
'Instances': [{
'BlockDeviceMappings': [
{'DeviceName': '/dev/sda1', 'Ebs': {'VolumeId': 'vol-root'}},
{'DeviceName': '/dev/sdf', 'Ebs': {'VolumeId': 'vol-12345678'}},
{'DeviceName': '/dev/sdg', 'Ebs': {'VolumeId': 'vol-87654321'}}
]
}]
}]
}
mock_instance = MagicMock()
mock_instance.root_device_name = '/dev/sda1'
self.aws.boto_resource.Instance = MagicMock(return_value=mock_instance)
self.aws.boto_client.describe_instances = MagicMock(return_value=mock_response)
volume_ids = self.aws.get_volumes_ids(instance_id)
self.assertEqual(len(volume_ids), 2)
self.assertIn('vol-12345678', volume_ids)
self.assertIn('vol-87654321', volume_ids)
self.assertNotIn('vol-root', volume_ids)
def test_get_volume_attachment_details(self):
"""Test getting volume attachment details"""
volume_ids = ['vol-12345678', 'vol-87654321']
mock_response = {
'Volumes': [
{'VolumeId': 'vol-12345678', 'State': 'in-use'},
{'VolumeId': 'vol-87654321', 'State': 'available'}
]
}
self.aws.boto_client.describe_volumes = MagicMock(return_value=mock_response)
details = self.aws.get_volume_attachment_details(volume_ids)
self.assertEqual(len(details), 2)
self.assertEqual(details[0]['VolumeId'], 'vol-12345678')
self.assertEqual(details[1]['VolumeId'], 'vol-87654321')
def test_get_root_volume_id(self):
"""Test getting root volume ID"""
instance_id = ['i-1234567890abcdef0']
mock_instance = MagicMock()
mock_instance.root_device_name = '/dev/sda1'
self.aws.boto_resource.Instance = MagicMock(return_value=mock_instance)
root_volume = self.aws.get_root_volume_id(instance_id)
self.assertEqual(root_volume, '/dev/sda1')
def test_get_volume_state(self):
"""Test getting volume state"""
volume_id = 'vol-12345678'
mock_volume = MagicMock()
mock_volume.state = 'available'
self.aws.boto_resource.Volume = MagicMock(return_value=mock_volume)
state = self.aws.get_volume_state(volume_id)
self.assertEqual(state, 'available')
class TestAWSNodeScenarios(unittest.TestCase):
"""Test cases for aws_node_scenarios class"""
def setUp(self):
"""Set up test fixtures"""
self.kubecli = MagicMock(spec=KrknKubernetes)
self.affected_nodes_status = AffectedNodeStatus()
# Mock the AWS class
with patch('krkn.scenario_plugins.node_actions.aws_node_scenarios.AWS') as mock_aws_class:
self.mock_aws = MagicMock()
mock_aws_class.return_value = self.mock_aws
self.scenario = aws_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=True,
affected_nodes_status=self.affected_nodes_status
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_start_scenario_success(self, mock_wait_ready):
"""Test node start scenario successfully"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
self.mock_aws.get_instance_id.return_value = instance_id
self.mock_aws.start_instances.return_value = None
self.mock_aws.wait_until_running.return_value = True
self.scenario.node_start_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
self.mock_aws.get_instance_id.assert_called_once_with(node)
self.mock_aws.start_instances.assert_called_once_with(instance_id)
self.mock_aws.wait_until_running.assert_called_once()
mock_wait_ready.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
self.assertEqual(self.affected_nodes_status.affected_nodes[0].node_name, node)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_start_scenario_no_kube_check(self, mock_wait_ready):
"""Test node start scenario without kube check"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
# Create scenario with node_action_kube_check=False
with patch('krkn.scenario_plugins.node_actions.aws_node_scenarios.AWS') as mock_aws_class:
mock_aws = MagicMock()
mock_aws_class.return_value = mock_aws
scenario = aws_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
mock_aws.get_instance_id.return_value = instance_id
mock_aws.start_instances.return_value = None
mock_aws.wait_until_running.return_value = True
scenario.node_start_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
# Should not call wait_for_ready_status
mock_wait_ready.assert_not_called()
def test_node_start_scenario_failure(self):
"""Test node start scenario with failure"""
node = 'ip-10-0-1-100.ec2.internal'
self.mock_aws.get_instance_id.side_effect = Exception("AWS error")
with self.assertRaises(RuntimeError):
self.scenario.node_start_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
def test_node_stop_scenario_success(self, mock_wait_unknown):
"""Test node stop scenario successfully"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
self.mock_aws.get_instance_id.return_value = instance_id
self.mock_aws.stop_instances.return_value = None
self.mock_aws.wait_until_stopped.return_value = True
self.scenario.node_stop_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
self.mock_aws.get_instance_id.assert_called_once_with(node)
self.mock_aws.stop_instances.assert_called_once_with(instance_id)
self.mock_aws.wait_until_stopped.assert_called_once()
mock_wait_unknown.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
def test_node_stop_scenario_no_kube_check(self, mock_wait_unknown):
"""Test node stop scenario without kube check"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
# Create scenario with node_action_kube_check=False
with patch('krkn.scenario_plugins.node_actions.aws_node_scenarios.AWS') as mock_aws_class:
mock_aws = MagicMock()
mock_aws_class.return_value = mock_aws
scenario = aws_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
mock_aws.get_instance_id.return_value = instance_id
mock_aws.stop_instances.return_value = None
mock_aws.wait_until_stopped.return_value = True
scenario.node_stop_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
# Should not call wait_for_unknown_status
mock_wait_unknown.assert_not_called()
def test_node_stop_scenario_failure(self):
"""Test node stop scenario with failure"""
node = 'ip-10-0-1-100.ec2.internal'
self.mock_aws.get_instance_id.side_effect = Exception("AWS error")
with self.assertRaises(RuntimeError):
self.scenario.node_stop_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
@patch('time.sleep')
def test_node_termination_scenario_success(self, _mock_sleep):
"""Test node termination scenario successfully"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
self.mock_aws.get_instance_id.return_value = instance_id
self.mock_aws.terminate_instances.return_value = None
self.mock_aws.wait_until_terminated.return_value = True
self.kubecli.list_nodes.return_value = []
self.scenario.node_termination_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
self.mock_aws.get_instance_id.assert_called_once_with(node)
self.mock_aws.terminate_instances.assert_called_once_with(instance_id)
self.mock_aws.wait_until_terminated.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('time.sleep')
def test_node_termination_scenario_node_still_exists(self, _mock_sleep):
"""Test node termination scenario when node still exists"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
self.mock_aws.get_instance_id.return_value = instance_id
self.mock_aws.terminate_instances.return_value = None
self.mock_aws.wait_until_terminated.return_value = True
# Node still in list after timeout
self.kubecli.list_nodes.return_value = [node]
with self.assertRaises(RuntimeError):
self.scenario.node_termination_scenario(
instance_kill_count=1,
node=node,
timeout=2,
poll_interval=15
)
def test_node_termination_scenario_failure(self):
"""Test node termination scenario with failure"""
node = 'ip-10-0-1-100.ec2.internal'
self.mock_aws.get_instance_id.side_effect = Exception("AWS error")
with self.assertRaises(RuntimeError):
self.scenario.node_termination_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_reboot_scenario_success(self, mock_wait_ready, mock_wait_unknown):
"""Test node reboot scenario successfully"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
self.mock_aws.get_instance_id.return_value = instance_id
self.mock_aws.reboot_instances.return_value = None
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node=node,
timeout=600
)
self.mock_aws.get_instance_id.assert_called_once_with(node)
self.mock_aws.reboot_instances.assert_called_once_with(instance_id)
mock_wait_unknown.assert_called_once()
mock_wait_ready.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_reboot_scenario_no_kube_check(self, mock_wait_ready, mock_wait_unknown):
"""Test node reboot scenario without kube check"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
# Create scenario with node_action_kube_check=False
with patch('krkn.scenario_plugins.node_actions.aws_node_scenarios.AWS') as mock_aws_class:
mock_aws = MagicMock()
mock_aws_class.return_value = mock_aws
scenario = aws_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
mock_aws.get_instance_id.return_value = instance_id
mock_aws.reboot_instances.return_value = None
scenario.node_reboot_scenario(
instance_kill_count=1,
node=node,
timeout=600
)
# Should not call wait functions
mock_wait_unknown.assert_not_called()
mock_wait_ready.assert_not_called()
def test_node_reboot_scenario_failure(self):
"""Test node reboot scenario with failure"""
node = 'ip-10-0-1-100.ec2.internal'
self.mock_aws.get_instance_id.side_effect = Exception("AWS error")
with self.assertRaises(RuntimeError):
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node=node,
timeout=600
)
def test_node_reboot_scenario_multiple_kills(self):
"""Test node reboot scenario with multiple kill counts"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
with patch('krkn.scenario_plugins.node_actions.aws_node_scenarios.AWS') as mock_aws_class:
mock_aws = MagicMock()
mock_aws_class.return_value = mock_aws
scenario = aws_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
mock_aws.get_instance_id.return_value = instance_id
mock_aws.reboot_instances.return_value = None
scenario.node_reboot_scenario(
instance_kill_count=3,
node=node,
timeout=600
)
self.assertEqual(mock_aws.reboot_instances.call_count, 3)
self.assertEqual(len(scenario.affected_nodes_status.affected_nodes), 3)
def test_get_disk_attachment_info_success(self):
"""Test getting disk attachment info successfully"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
volume_ids = ['vol-12345678']
attachment_details = [
{
'VolumeId': 'vol-12345678',
'Attachments': [{
'InstanceId': instance_id,
'Device': '/dev/sdf'
}]
}
]
self.mock_aws.get_instance_id.return_value = instance_id
self.mock_aws.get_volumes_ids.return_value = volume_ids
self.mock_aws.get_volume_attachment_details.return_value = attachment_details
result = self.scenario.get_disk_attachment_info(
instance_kill_count=1,
node=node
)
self.assertEqual(result, attachment_details)
self.mock_aws.get_instance_id.assert_called_once_with(node)
self.mock_aws.get_volumes_ids.assert_called_once()
self.mock_aws.get_volume_attachment_details.assert_called_once_with(volume_ids)
def test_get_disk_attachment_info_no_volumes(self):
"""Test getting disk attachment info when no volumes exist"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
self.mock_aws.get_instance_id.return_value = instance_id
self.mock_aws.get_volumes_ids.return_value = []
result = self.scenario.get_disk_attachment_info(
instance_kill_count=1,
node=node
)
self.assertIsNone(result)
self.mock_aws.get_volume_attachment_details.assert_not_called()
def test_get_disk_attachment_info_failure(self):
"""Test getting disk attachment info with failure"""
node = 'ip-10-0-1-100.ec2.internal'
self.mock_aws.get_instance_id.side_effect = Exception("AWS error")
with self.assertRaises(RuntimeError):
self.scenario.get_disk_attachment_info(
instance_kill_count=1,
node=node
)
def test_disk_detach_scenario_success(self):
"""Test disk detach scenario successfully"""
node = 'ip-10-0-1-100.ec2.internal'
instance_id = 'i-1234567890abcdef0'
volume_ids = ['vol-12345678', 'vol-87654321']
self.mock_aws.get_instance_id.return_value = instance_id
self.mock_aws.get_volumes_ids.return_value = volume_ids
self.mock_aws.detach_volumes.return_value = None
self.scenario.disk_detach_scenario(
instance_kill_count=1,
node=node,
timeout=600
)
self.mock_aws.get_instance_id.assert_called_once_with(node)
self.mock_aws.get_volumes_ids.assert_called_once()
self.mock_aws.detach_volumes.assert_called_once_with(volume_ids)
def test_disk_detach_scenario_failure(self):
"""Test disk detach scenario with failure"""
node = 'ip-10-0-1-100.ec2.internal'
self.mock_aws.get_instance_id.side_effect = Exception("AWS error")
with self.assertRaises(RuntimeError):
self.scenario.disk_detach_scenario(
instance_kill_count=1,
node=node,
timeout=600
)
def test_disk_attach_scenario_success(self):
"""Test disk attach scenario successfully"""
attachment_details = [
{
'VolumeId': 'vol-12345678',
'Attachments': [{
'InstanceId': 'i-1234567890abcdef0',
'Device': '/dev/sdf',
'VolumeId': 'vol-12345678'
}]
},
{
'VolumeId': 'vol-87654321',
'Attachments': [{
'InstanceId': 'i-1234567890abcdef0',
'Device': '/dev/sdg',
'VolumeId': 'vol-87654321'
}]
}
]
self.mock_aws.attach_volume.return_value = None
self.scenario.disk_attach_scenario(
instance_kill_count=1,
attachment_details=attachment_details,
timeout=600
)
self.assertEqual(self.mock_aws.attach_volume.call_count, 2)
def test_disk_attach_scenario_multiple_kills(self):
"""Test disk attach scenario with multiple kill counts"""
attachment_details = [
{
'VolumeId': 'vol-12345678',
'Attachments': [{
'InstanceId': 'i-1234567890abcdef0',
'Device': '/dev/sdf',
'VolumeId': 'vol-12345678'
}]
}
]
self.mock_aws.attach_volume.return_value = None
self.scenario.disk_attach_scenario(
instance_kill_count=3,
attachment_details=attachment_details,
timeout=600
)
# Should call attach_volume 3 times (once per kill count)
self.assertEqual(self.mock_aws.attach_volume.call_count, 3)
if __name__ == "__main__":
unittest.main()

View File

@@ -1,784 +0,0 @@
#!/usr/bin/env python3
"""
Test suite for azure_node_scenarios class
Usage:
python -m coverage run -a -m unittest tests/test_az_node_scenarios.py -v
Assisted By: Claude Code
"""
import unittest
from unittest.mock import Mock, patch
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.models.k8s import AffectedNode, AffectedNodeStatus
from krkn.scenario_plugins.node_actions.az_node_scenarios import Azure, azure_node_scenarios
class TestAzure(unittest.TestCase):
"""Test suite for Azure class"""
def setUp(self):
"""Set up test fixtures"""
# Mock environment variable
self.env_patcher = patch.dict('os.environ', {'AZURE_SUBSCRIPTION_ID': 'test-subscription-id'})
self.env_patcher.start()
def tearDown(self):
"""Clean up after tests"""
self.env_patcher.stop()
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
@patch('logging.info')
def test_azure_init(self, mock_logging, mock_credential, mock_compute, mock_network):
"""Test Azure class initialization"""
mock_creds = Mock()
mock_credential.return_value = mock_creds
azure = Azure()
mock_credential.assert_called_once()
mock_compute.assert_called_once()
mock_network.assert_called_once()
self.assertIsNotNone(azure.compute_client)
self.assertIsNotNone(azure.network_client)
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_get_instance_id_found(self, mock_credential, mock_compute, mock_network):
"""Test get_instance_id when VM is found"""
azure = Azure()
# Mock VM
mock_vm = Mock()
mock_vm.name = "test-node"
mock_vm.id = "/subscriptions/sub-id/resourceGroups/test-rg/providers/Microsoft.Compute/virtualMachines/test-node"
azure.compute_client.virtual_machines.list_all.return_value = [mock_vm]
vm_name, resource_group = azure.get_instance_id("test-node")
self.assertEqual(vm_name, "test-node")
self.assertEqual(resource_group, "test-rg")
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_get_instance_id_not_found(self, mock_credential, mock_compute, mock_network, mock_logging):
"""Test get_instance_id when VM is not found"""
azure = Azure()
azure.compute_client.virtual_machines.list_all.return_value = []
result = azure.get_instance_id("nonexistent-node")
self.assertIsNone(result)
mock_logging.assert_called()
self.assertIn("Couldn't find vm", str(mock_logging.call_args))
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_get_network_interface(self, mock_credential, mock_compute, mock_network):
"""Test get_network_interface retrieves network details"""
azure = Azure()
# Mock VM with network profile
mock_vm = Mock()
mock_nic_ref = Mock()
mock_nic_ref.id = "/subscriptions/sub-id/resourceGroups/test-rg/providers/Microsoft.Network/networkInterfaces/test-nic"
mock_vm.network_profile.network_interfaces = [mock_nic_ref]
# Mock NIC
mock_nic = Mock()
mock_nic.location = "eastus"
mock_ip_config = Mock()
mock_ip_config.private_ip_address = "10.0.1.5"
mock_ip_config.subnet.id = "/subscriptions/sub-id/resourceGroups/network-rg/providers/Microsoft.Network/virtualNetworks/test-vnet/subnets/test-subnet"
mock_nic.ip_configurations = [mock_ip_config]
azure.compute_client.virtual_machines.get.return_value = mock_vm
azure.network_client.network_interfaces.get.return_value = mock_nic
subnet, vnet, ip, net_rg, location = azure.get_network_interface("test-node", "test-rg")
self.assertEqual(subnet, "test-subnet")
self.assertEqual(vnet, "test-vnet")
self.assertEqual(ip, "10.0.1.5")
self.assertEqual(net_rg, "network-rg")
self.assertEqual(location, "eastus")
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_start_instances_success(self, mock_credential, mock_compute, mock_network, mock_logging):
"""Test start_instances successfully starts VM"""
azure = Azure()
mock_operation = Mock()
azure.compute_client.virtual_machines.begin_start.return_value = mock_operation
azure.start_instances("test-rg", "test-vm")
azure.compute_client.virtual_machines.begin_start.assert_called_once_with("test-rg", "test-vm")
mock_logging.assert_called()
self.assertIn("started", str(mock_logging.call_args))
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_start_instances_failure(self, mock_credential, mock_compute, mock_network, mock_logging):
"""Test start_instances handles failure"""
azure = Azure()
azure.compute_client.virtual_machines.begin_start.side_effect = Exception("Start failed")
with self.assertRaises(RuntimeError):
azure.start_instances("test-rg", "test-vm")
mock_logging.assert_called()
self.assertIn("Failed to start", str(mock_logging.call_args))
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_stop_instances_success(self, mock_credential, mock_compute, mock_network, mock_logging):
"""Test stop_instances successfully stops VM"""
azure = Azure()
mock_operation = Mock()
azure.compute_client.virtual_machines.begin_power_off.return_value = mock_operation
azure.stop_instances("test-rg", "test-vm")
azure.compute_client.virtual_machines.begin_power_off.assert_called_once_with("test-rg", "test-vm")
mock_logging.assert_called()
self.assertIn("stopped", str(mock_logging.call_args))
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_stop_instances_failure(self, mock_credential, mock_compute, mock_network, mock_logging):
"""Test stop_instances handles failure"""
azure = Azure()
azure.compute_client.virtual_machines.begin_power_off.side_effect = Exception("Stop failed")
with self.assertRaises(RuntimeError):
azure.stop_instances("test-rg", "test-vm")
mock_logging.assert_called()
self.assertIn("Failed to stop", str(mock_logging.call_args))
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_terminate_instances_success(self, mock_credential, mock_compute, mock_network, mock_logging):
"""Test terminate_instances successfully deletes VM"""
azure = Azure()
mock_operation = Mock()
azure.compute_client.virtual_machines.begin_delete.return_value = mock_operation
azure.terminate_instances("test-rg", "test-vm")
azure.compute_client.virtual_machines.begin_delete.assert_called_once_with("test-rg", "test-vm")
mock_logging.assert_called()
self.assertIn("terminated", str(mock_logging.call_args))
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_terminate_instances_failure(self, mock_credential, mock_compute, mock_network, mock_logging):
"""Test terminate_instances handles failure"""
azure = Azure()
azure.compute_client.virtual_machines.begin_delete.side_effect = Exception("Delete failed")
with self.assertRaises(RuntimeError):
azure.terminate_instances("test-rg", "test-vm")
mock_logging.assert_called()
self.assertIn("Failed to terminate", str(mock_logging.call_args))
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_reboot_instances_success(self, mock_credential, mock_compute, mock_network, mock_logging):
"""Test reboot_instances successfully reboots VM"""
azure = Azure()
mock_operation = Mock()
azure.compute_client.virtual_machines.begin_restart.return_value = mock_operation
azure.reboot_instances("test-rg", "test-vm")
azure.compute_client.virtual_machines.begin_restart.assert_called_once_with("test-rg", "test-vm")
mock_logging.assert_called()
self.assertIn("rebooted", str(mock_logging.call_args))
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_reboot_instances_failure(self, mock_credential, mock_compute, mock_network, mock_logging):
"""Test reboot_instances handles failure"""
azure = Azure()
azure.compute_client.virtual_machines.begin_restart.side_effect = Exception("Reboot failed")
with self.assertRaises(RuntimeError):
azure.reboot_instances("test-rg", "test-vm")
mock_logging.assert_called()
self.assertIn("Failed to reboot", str(mock_logging.call_args))
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_get_vm_status(self, mock_credential, mock_compute, mock_network):
"""Test get_vm_status returns VM power state"""
azure = Azure()
mock_status1 = Mock()
mock_status1.code = "ProvisioningState/succeeded"
mock_status2 = Mock()
mock_status2.code = "PowerState/running"
mock_instance_view = Mock()
mock_instance_view.statuses = [mock_status1, mock_status2]
azure.compute_client.virtual_machines.instance_view.return_value = mock_instance_view
status = azure.get_vm_status("test-rg", "test-vm")
self.assertEqual(status.code, "PowerState/running")
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_wait_until_running_success(self, mock_credential, mock_compute, mock_network, mock_logging, mock_sleep):
"""Test wait_until_running waits for VM to be running"""
azure = Azure()
mock_status_starting = Mock()
mock_status_starting.code = "PowerState/starting"
mock_status_running = Mock()
mock_status_running.code = "PowerState/running"
mock_instance_view1 = Mock()
mock_instance_view1.statuses = [Mock(), mock_status_starting]
mock_instance_view2 = Mock()
mock_instance_view2.statuses = [Mock(), mock_status_running]
azure.compute_client.virtual_machines.instance_view.side_effect = [
mock_instance_view1,
mock_instance_view2
]
mock_affected_node = Mock(spec=AffectedNode)
result = azure.wait_until_running("test-rg", "test-vm", 300, mock_affected_node)
self.assertTrue(result)
mock_affected_node.set_affected_node_status.assert_called_once()
args = mock_affected_node.set_affected_node_status.call_args[0]
self.assertEqual(args[0], "running")
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_wait_until_running_timeout(self, mock_credential, mock_compute, mock_network, mock_logging, mock_sleep):
"""Test wait_until_running returns False on timeout"""
azure = Azure()
mock_status = Mock()
mock_status.code = "PowerState/starting"
mock_instance_view = Mock()
mock_instance_view.statuses = [Mock(), mock_status]
azure.compute_client.virtual_machines.instance_view.return_value = mock_instance_view
result = azure.wait_until_running("test-rg", "test-vm", 10, None)
self.assertFalse(result)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_wait_until_stopped_success(self, mock_credential, mock_compute, mock_network, mock_logging, mock_sleep):
"""Test wait_until_stopped waits for VM to be stopped"""
azure = Azure()
mock_status_stopping = Mock()
mock_status_stopping.code = "PowerState/stopping"
mock_status_stopped = Mock()
mock_status_stopped.code = "PowerState/stopped"
mock_instance_view1 = Mock()
mock_instance_view1.statuses = [Mock(), mock_status_stopping]
mock_instance_view2 = Mock()
mock_instance_view2.statuses = [Mock(), mock_status_stopped]
azure.compute_client.virtual_machines.instance_view.side_effect = [
mock_instance_view1,
mock_instance_view2
]
mock_affected_node = Mock(spec=AffectedNode)
result = azure.wait_until_stopped("test-rg", "test-vm", 300, mock_affected_node)
self.assertTrue(result)
mock_affected_node.set_affected_node_status.assert_called_once()
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_wait_until_stopped_timeout(self, mock_credential, mock_compute, mock_network, mock_logging, mock_sleep):
"""Test wait_until_stopped returns False on timeout"""
azure = Azure()
mock_status = Mock()
mock_status.code = "PowerState/stopping"
mock_instance_view = Mock()
mock_instance_view.statuses = [Mock(), mock_status]
azure.compute_client.virtual_machines.instance_view.return_value = mock_instance_view
result = azure.wait_until_stopped("test-rg", "test-vm", 10, None)
self.assertFalse(result)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_wait_until_terminated_success(self, mock_credential, mock_compute, mock_network, mock_logging, mock_sleep):
"""Test wait_until_terminated waits for VM deletion"""
azure = Azure()
mock_status_deleting = Mock()
mock_status_deleting.code = "ProvisioningState/deleting"
mock_instance_view = Mock()
mock_instance_view.statuses = [mock_status_deleting]
# First call returns deleting, second raises exception (VM deleted)
azure.compute_client.virtual_machines.instance_view.side_effect = [
mock_instance_view,
Exception("VM not found")
]
mock_affected_node = Mock(spec=AffectedNode)
result = azure.wait_until_terminated("test-rg", "test-vm", 300, mock_affected_node)
self.assertTrue(result)
mock_affected_node.set_affected_node_status.assert_called_once()
args = mock_affected_node.set_affected_node_status.call_args[0]
self.assertEqual(args[0], "terminated")
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_wait_until_terminated_timeout(self, mock_credential, mock_compute, mock_network, mock_logging, mock_sleep):
"""Test wait_until_terminated returns False on timeout"""
azure = Azure()
mock_status = Mock()
mock_status.code = "ProvisioningState/deleting"
mock_instance_view = Mock()
mock_instance_view.statuses = [mock_status]
azure.compute_client.virtual_machines.instance_view.return_value = mock_instance_view
result = azure.wait_until_terminated("test-rg", "test-vm", 10, None)
self.assertFalse(result)
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_create_security_group(self, mock_credential, mock_compute, mock_network):
"""Test create_security_group creates NSG with deny rules"""
azure = Azure()
mock_nsg_result = Mock()
mock_nsg_result.id = "/subscriptions/sub-id/resourceGroups/test-rg/providers/Microsoft.Network/networkSecurityGroups/chaos"
mock_operation = Mock()
mock_operation.result.return_value = mock_nsg_result
azure.network_client.network_security_groups.begin_create_or_update.return_value = mock_operation
nsg_id = azure.create_security_group("test-rg", "chaos", "eastus", "10.0.1.5")
self.assertEqual(nsg_id, mock_nsg_result.id)
azure.network_client.network_security_groups.begin_create_or_update.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_delete_security_group(self, mock_credential, mock_compute, mock_network):
"""Test delete_security_group deletes NSG"""
azure = Azure()
mock_operation = Mock()
mock_operation.result.return_value = None
azure.network_client.network_security_groups.begin_delete.return_value = mock_operation
azure.delete_security_group("test-rg", "chaos")
azure.network_client.network_security_groups.begin_delete.assert_called_once_with("test-rg", "chaos")
@patch('builtins.print')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_delete_security_group_with_result(self, mock_credential, mock_compute, mock_network, mock_print):
"""Test delete_security_group deletes NSG with non-None result"""
azure = Azure()
mock_result = Mock()
mock_result.as_dict.return_value = {"id": "/test-nsg-id", "name": "chaos"}
mock_operation = Mock()
mock_operation.result.return_value = mock_result
azure.network_client.network_security_groups.begin_delete.return_value = mock_operation
azure.delete_security_group("test-rg", "chaos")
azure.network_client.network_security_groups.begin_delete.assert_called_once_with("test-rg", "chaos")
mock_result.as_dict.assert_called_once()
mock_print.assert_called_once_with({"id": "/test-nsg-id", "name": "chaos"})
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.NetworkManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.ComputeManagementClient')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.DefaultAzureCredential')
def test_update_subnet(self, mock_credential, mock_compute, mock_network):
"""Test update_subnet updates subnet NSG"""
azure = Azure()
# Mock existing subnet
mock_old_nsg = Mock()
mock_old_nsg.id = "/old-nsg-id"
mock_subnet = Mock()
mock_subnet.network_security_group = mock_old_nsg
azure.network_client.subnets.get.return_value = mock_subnet
old_nsg = azure.update_subnet("/new-nsg-id", "test-rg", "test-subnet", "test-vnet")
self.assertEqual(old_nsg, "/old-nsg-id")
azure.network_client.subnets.begin_create_or_update.assert_called_once()
class TestAzureNodeScenarios(unittest.TestCase):
"""Test suite for azure_node_scenarios class"""
def setUp(self):
"""Set up test fixtures"""
self.env_patcher = patch.dict('os.environ', {'AZURE_SUBSCRIPTION_ID': 'test-subscription-id'})
self.env_patcher.start()
self.mock_kubecli = Mock(spec=KrknKubernetes)
self.affected_nodes_status = AffectedNodeStatus()
def tearDown(self):
"""Clean up after tests"""
self.env_patcher.stop()
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_init(self, mock_azure_class, mock_logging):
"""Test azure_node_scenarios initialization"""
mock_azure_instance = Mock()
mock_azure_class.return_value = mock_azure_instance
scenarios = azure_node_scenarios(self.mock_kubecli, True, self.affected_nodes_status)
self.assertEqual(scenarios.kubecli, self.mock_kubecli)
self.assertTrue(scenarios.node_action_kube_check)
self.assertEqual(scenarios.azure, mock_azure_instance)
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_start_scenario_success(self, mock_azure_class, mock_logging, mock_nodeaction):
"""Test node_start_scenario successfully starts node"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.wait_until_running.return_value = True
scenarios = azure_node_scenarios(self.mock_kubecli, True, self.affected_nodes_status)
scenarios.node_start_scenario(1, "test-node", 300, 15)
mock_azure.get_instance_id.assert_called_once_with("test-node")
mock_azure.start_instances.assert_called_once_with("test-rg", "test-vm")
mock_azure.wait_until_running.assert_called_once()
mock_nodeaction.wait_for_ready_status.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_start_scenario_no_kube_check(self, mock_azure_class, mock_logging, mock_nodeaction):
"""Test node_start_scenario without Kubernetes check"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.wait_until_running.return_value = True
scenarios = azure_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
scenarios.node_start_scenario(1, "test-node", 300, 15)
mock_azure.start_instances.assert_called_once()
mock_nodeaction.wait_for_ready_status.assert_not_called()
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_start_scenario_failure(self, mock_azure_class, mock_logging):
"""Test node_start_scenario handles failure"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.start_instances.side_effect = Exception("Start failed")
scenarios = azure_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
with self.assertRaises(RuntimeError):
scenarios.node_start_scenario(1, "test-node", 300, 15)
mock_logging.assert_called()
# Check that failure was logged (either specific or general injection failed message)
call_str = str(mock_logging.call_args)
self.assertTrue("Failed to start" in call_str or "injection failed" in call_str)
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_start_scenario_multiple_runs(self, mock_azure_class, mock_logging, mock_nodeaction):
"""Test node_start_scenario with multiple runs"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.wait_until_running.return_value = True
scenarios = azure_node_scenarios(self.mock_kubecli, True, self.affected_nodes_status)
scenarios.node_start_scenario(3, "test-node", 300, 15)
self.assertEqual(mock_azure.start_instances.call_count, 3)
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 3)
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_stop_scenario_success(self, mock_azure_class, mock_logging, mock_nodeaction):
"""Test node_stop_scenario successfully stops node"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.wait_until_stopped.return_value = True
scenarios = azure_node_scenarios(self.mock_kubecli, True, self.affected_nodes_status)
scenarios.node_stop_scenario(1, "test-node", 300, 15)
mock_azure.get_instance_id.assert_called_once_with("test-node")
mock_azure.stop_instances.assert_called_once_with("test-rg", "test-vm")
mock_azure.wait_until_stopped.assert_called_once()
mock_nodeaction.wait_for_unknown_status.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_stop_scenario_failure(self, mock_azure_class, mock_logging):
"""Test node_stop_scenario handles failure"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.stop_instances.side_effect = Exception("Stop failed")
scenarios = azure_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
with self.assertRaises(RuntimeError):
scenarios.node_stop_scenario(1, "test-node", 300, 15)
mock_logging.assert_called()
# Check that failure was logged
call_str = str(mock_logging.call_args)
self.assertTrue("Failed to stop" in call_str or "injection failed" in call_str)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_termination_scenario_success(self, mock_azure_class, mock_logging, mock_sleep):
"""Test node_termination_scenario successfully terminates node"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.wait_until_terminated.return_value = True
self.mock_kubecli.list_nodes.return_value = ["other-node"]
scenarios = azure_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
scenarios.node_termination_scenario(1, "test-node", 300, 15)
mock_azure.terminate_instances.assert_called_once_with("test-rg", "test-vm")
mock_azure.wait_until_terminated.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('time.sleep')
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_termination_scenario_node_still_exists(self, mock_azure_class, mock_logging, mock_sleep):
"""Test node_termination_scenario when node still exists after timeout"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.wait_until_terminated.return_value = True
# Node still in list after termination attempt
self.mock_kubecli.list_nodes.return_value = ["test-vm", "other-node"]
scenarios = azure_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
with self.assertRaises(RuntimeError):
scenarios.node_termination_scenario(1, "test-node", 5, 15)
mock_logging.assert_called()
# Check that failure was logged
call_str = str(mock_logging.call_args)
self.assertTrue("Failed to terminate" in call_str or "injection failed" in call_str)
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.nodeaction')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_reboot_scenario_success(self, mock_azure_class, mock_logging, mock_nodeaction):
"""Test node_reboot_scenario successfully reboots node"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
scenarios = azure_node_scenarios(self.mock_kubecli, True, self.affected_nodes_status)
scenarios.node_reboot_scenario(1, "test-node", 300, soft_reboot=False)
mock_azure.reboot_instances.assert_called_once_with("test-rg", "test-vm")
mock_nodeaction.wait_for_ready_status.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_reboot_scenario_failure(self, mock_azure_class, mock_logging):
"""Test node_reboot_scenario handles failure"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.reboot_instances.side_effect = Exception("Reboot failed")
scenarios = azure_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
with self.assertRaises(RuntimeError):
scenarios.node_reboot_scenario(1, "test-node", 300)
mock_logging.assert_called()
# Check that failure was logged
call_str = str(mock_logging.call_args)
self.assertTrue("Failed to reboot" in call_str or "injection failed" in call_str)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_block_scenario_success(self, mock_azure_class, mock_logging, mock_sleep):
"""Test node_block_scenario successfully blocks and unblocks node"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.get_network_interface.return_value = (
"test-subnet", "test-vnet", "10.0.1.5", "network-rg", "eastus"
)
mock_azure.create_security_group.return_value = "/new-nsg-id"
mock_azure.update_subnet.return_value = "/old-nsg-id"
scenarios = azure_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
scenarios.node_block_scenario(1, "test-node", 300, 60)
mock_azure.create_security_group.assert_called_once()
# Should be called twice: once to apply block, once to remove
self.assertEqual(mock_azure.update_subnet.call_count, 2)
mock_azure.delete_security_group.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('time.sleep')
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_block_scenario_failure(self, mock_azure_class, mock_logging, mock_sleep):
"""Test node_block_scenario handles failure"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.get_network_interface.side_effect = Exception("Network error")
scenarios = azure_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
with self.assertRaises(RuntimeError):
scenarios.node_block_scenario(1, "test-node", 300, 60)
mock_logging.assert_called()
# Check that failure was logged
call_str = str(mock_logging.call_args)
self.assertTrue("Failed to block" in call_str or "injection failed" in call_str)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.az_node_scenarios.Azure')
def test_node_block_scenario_duration_timing(self, mock_azure_class, mock_logging, mock_sleep):
"""Test node_block_scenario waits for specified duration"""
mock_azure = Mock()
mock_azure_class.return_value = mock_azure
mock_azure.get_instance_id.return_value = ("test-vm", "test-rg")
mock_azure.get_network_interface.return_value = (
"test-subnet", "test-vnet", "10.0.1.5", "network-rg", "eastus"
)
mock_azure.create_security_group.return_value = "/new-nsg-id"
mock_azure.update_subnet.return_value = "/old-nsg-id"
scenarios = azure_node_scenarios(self.mock_kubecli, False, self.affected_nodes_status)
scenarios.node_block_scenario(1, "test-node", 300, 120)
# Verify sleep was called with the correct duration
mock_sleep.assert_called_with(120)
if __name__ == "__main__":
unittest.main()

View File

@@ -1,476 +0,0 @@
#!/usr/bin/env python3
"""
Test suite for common_node_functions module
Usage:
python -m coverage run -a -m unittest tests/test_common_node_functions.py -v
Assisted By: Claude Code
"""
import unittest
from unittest.mock import MagicMock, Mock, patch, call
import logging
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.models.k8s import AffectedNode
from krkn.scenario_plugins.node_actions import common_node_functions
class TestCommonNodeFunctions(unittest.TestCase):
def setUp(self):
"""
Set up test fixtures before each test
"""
self.mock_kubecli = Mock(spec=KrknKubernetes)
self.mock_affected_node = Mock(spec=AffectedNode)
def test_get_node_by_name_all_nodes_exist(self):
"""
Test get_node_by_name returns list when all nodes exist
"""
node_name_list = ["node1", "node2", "node3"]
self.mock_kubecli.list_killable_nodes.return_value = ["node1", "node2", "node3", "node4"]
result = common_node_functions.get_node_by_name(node_name_list, self.mock_kubecli)
self.assertEqual(result, node_name_list)
self.mock_kubecli.list_killable_nodes.assert_called_once()
def test_get_node_by_name_single_node(self):
"""
Test get_node_by_name with single node
"""
node_name_list = ["worker-1"]
self.mock_kubecli.list_killable_nodes.return_value = ["worker-1", "worker-2"]
result = common_node_functions.get_node_by_name(node_name_list, self.mock_kubecli)
self.assertEqual(result, node_name_list)
@patch('logging.info')
def test_get_node_by_name_node_not_exist(self, mock_logging):
"""
Test get_node_by_name returns None when node doesn't exist
"""
node_name_list = ["node1", "nonexistent-node"]
self.mock_kubecli.list_killable_nodes.return_value = ["node1", "node2", "node3"]
result = common_node_functions.get_node_by_name(node_name_list, self.mock_kubecli)
self.assertIsNone(result)
mock_logging.assert_called()
self.assertIn("does not exist", str(mock_logging.call_args))
@patch('logging.info')
def test_get_node_by_name_empty_killable_list(self, mock_logging):
"""
Test get_node_by_name when no killable nodes exist
"""
node_name_list = ["node1"]
self.mock_kubecli.list_killable_nodes.return_value = []
result = common_node_functions.get_node_by_name(node_name_list, self.mock_kubecli)
self.assertIsNone(result)
mock_logging.assert_called()
@patch('logging.info')
def test_get_node_single_label_selector(self, mock_logging):
"""
Test get_node with single label selector
"""
label_selector = "node-role.kubernetes.io/worker"
instance_kill_count = 2
self.mock_kubecli.list_killable_nodes.return_value = ["worker-1", "worker-2", "worker-3"]
result = common_node_functions.get_node(label_selector, instance_kill_count, self.mock_kubecli)
self.assertEqual(len(result), 2)
self.assertTrue(all(node in ["worker-1", "worker-2", "worker-3"] for node in result))
self.mock_kubecli.list_killable_nodes.assert_called_once_with(label_selector)
mock_logging.assert_called()
@patch('logging.info')
def test_get_node_multiple_label_selectors(self, mock_logging):
"""
Test get_node with multiple comma-separated label selectors
"""
label_selector = "node-role.kubernetes.io/worker,topology.kubernetes.io/zone=us-east-1a"
instance_kill_count = 3
self.mock_kubecli.list_killable_nodes.side_effect = [
["worker-1", "worker-2"],
["worker-3", "worker-4"]
]
result = common_node_functions.get_node(label_selector, instance_kill_count, self.mock_kubecli)
self.assertEqual(len(result), 3)
self.assertTrue(all(node in ["worker-1", "worker-2", "worker-3", "worker-4"] for node in result))
self.assertEqual(self.mock_kubecli.list_killable_nodes.call_count, 2)
@patch('logging.info')
def test_get_node_return_all_when_count_equals_total(self, mock_logging):
"""
Test get_node returns all nodes when instance_kill_count equals number of nodes
"""
label_selector = "node-role.kubernetes.io/worker"
nodes = ["worker-1", "worker-2", "worker-3"]
instance_kill_count = 3
self.mock_kubecli.list_killable_nodes.return_value = nodes
result = common_node_functions.get_node(label_selector, instance_kill_count, self.mock_kubecli)
self.assertEqual(result, nodes)
@patch('logging.info')
def test_get_node_return_all_when_count_is_zero(self, mock_logging):
"""
Test get_node returns all nodes when instance_kill_count is 0
"""
label_selector = "node-role.kubernetes.io/worker"
nodes = ["worker-1", "worker-2", "worker-3"]
instance_kill_count = 0
self.mock_kubecli.list_killable_nodes.return_value = nodes
result = common_node_functions.get_node(label_selector, instance_kill_count, self.mock_kubecli)
self.assertEqual(result, nodes)
@patch('logging.info')
@patch('random.randint')
def test_get_node_random_selection(self, mock_randint, mock_logging):
"""
Test get_node randomly selects nodes when count is less than total
"""
label_selector = "node-role.kubernetes.io/worker"
instance_kill_count = 2
self.mock_kubecli.list_killable_nodes.return_value = ["worker-1", "worker-2", "worker-3", "worker-4"]
# Mock random selection to return predictable values
mock_randint.side_effect = [1, 0] # Select index 1, then index 0
result = common_node_functions.get_node(label_selector, instance_kill_count, self.mock_kubecli)
self.assertEqual(len(result), 2)
# Verify nodes were removed after selection to avoid duplicates
self.assertEqual(len(set(result)), 2)
def test_get_node_no_nodes_with_label(self):
"""
Test get_node raises exception when no nodes match label selector
"""
label_selector = "nonexistent-label"
instance_kill_count = 1
self.mock_kubecli.list_killable_nodes.return_value = []
with self.assertRaises(Exception) as context:
common_node_functions.get_node(label_selector, instance_kill_count, self.mock_kubecli)
self.assertIn("Ready nodes with the provided label selector do not exist", str(context.exception))
def test_get_node_single_node_available(self):
"""
Test get_node when only one node is available
"""
label_selector = "node-role.kubernetes.io/master"
instance_kill_count = 1
self.mock_kubecli.list_killable_nodes.return_value = ["master-1"]
result = common_node_functions.get_node(label_selector, instance_kill_count, self.mock_kubecli)
self.assertEqual(result, ["master-1"])
def test_wait_for_ready_status_without_affected_node(self):
"""
Test wait_for_ready_status without providing affected_node
"""
node = "test-node"
timeout = 300
expected_affected_node = Mock(spec=AffectedNode)
self.mock_kubecli.watch_node_status.return_value = expected_affected_node
result = common_node_functions.wait_for_ready_status(node, timeout, self.mock_kubecli)
self.assertEqual(result, expected_affected_node)
self.mock_kubecli.watch_node_status.assert_called_once_with(node, "True", timeout, None)
def test_wait_for_ready_status_with_affected_node(self):
"""
Test wait_for_ready_status with provided affected_node
"""
node = "test-node"
timeout = 300
self.mock_kubecli.watch_node_status.return_value = self.mock_affected_node
result = common_node_functions.wait_for_ready_status(
node, timeout, self.mock_kubecli, self.mock_affected_node
)
self.assertEqual(result, self.mock_affected_node)
self.mock_kubecli.watch_node_status.assert_called_once_with(
node, "True", timeout, self.mock_affected_node
)
def test_wait_for_not_ready_status_without_affected_node(self):
"""
Test wait_for_not_ready_status without providing affected_node
"""
node = "test-node"
timeout = 300
expected_affected_node = Mock(spec=AffectedNode)
self.mock_kubecli.watch_node_status.return_value = expected_affected_node
result = common_node_functions.wait_for_not_ready_status(node, timeout, self.mock_kubecli)
self.assertEqual(result, expected_affected_node)
self.mock_kubecli.watch_node_status.assert_called_once_with(node, "False", timeout, None)
def test_wait_for_not_ready_status_with_affected_node(self):
"""
Test wait_for_not_ready_status with provided affected_node
"""
node = "test-node"
timeout = 300
self.mock_kubecli.watch_node_status.return_value = self.mock_affected_node
result = common_node_functions.wait_for_not_ready_status(
node, timeout, self.mock_kubecli, self.mock_affected_node
)
self.assertEqual(result, self.mock_affected_node)
self.mock_kubecli.watch_node_status.assert_called_once_with(
node, "False", timeout, self.mock_affected_node
)
def test_wait_for_unknown_status_without_affected_node(self):
"""
Test wait_for_unknown_status without providing affected_node
"""
node = "test-node"
timeout = 300
expected_affected_node = Mock(spec=AffectedNode)
self.mock_kubecli.watch_node_status.return_value = expected_affected_node
result = common_node_functions.wait_for_unknown_status(node, timeout, self.mock_kubecli)
self.assertEqual(result, expected_affected_node)
self.mock_kubecli.watch_node_status.assert_called_once_with(node, "Unknown", timeout, None)
def test_wait_for_unknown_status_with_affected_node(self):
"""
Test wait_for_unknown_status with provided affected_node
"""
node = "test-node"
timeout = 300
self.mock_kubecli.watch_node_status.return_value = self.mock_affected_node
result = common_node_functions.wait_for_unknown_status(
node, timeout, self.mock_kubecli, self.mock_affected_node
)
self.assertEqual(result, self.mock_affected_node)
self.mock_kubecli.watch_node_status.assert_called_once_with(
node, "Unknown", timeout, self.mock_affected_node
)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.paramiko.SSHClient')
def test_check_service_status_success(self, mock_ssh_client, mock_logging, mock_sleep):
"""
Test check_service_status successfully checks service status
"""
node = "192.168.1.100"
service = ["neutron-server", "nova-compute"]
ssh_private_key = "~/.ssh/id_rsa"
timeout = 60
# Mock SSH client
mock_ssh = Mock()
mock_ssh_client.return_value = mock_ssh
mock_ssh.connect.return_value = None
# Mock exec_command to return active status
mock_stdout = Mock()
mock_stdout.readlines.return_value = ["active\n"]
mock_ssh.exec_command.return_value = (Mock(), mock_stdout, Mock())
common_node_functions.check_service_status(node, service, ssh_private_key, timeout)
# Verify SSH connection was attempted
mock_ssh.connect.assert_called()
# Verify service status was checked for each service
self.assertEqual(mock_ssh.exec_command.call_count, 2)
# Verify SSH connection was closed
mock_ssh.close.assert_called_once()
@patch('time.sleep')
@patch('logging.error')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.paramiko.SSHClient')
def test_check_service_status_service_inactive(self, mock_ssh_client, mock_logging_info, mock_logging_error, mock_sleep):
"""
Test check_service_status logs error when service is inactive
"""
node = "192.168.1.100"
service = ["neutron-server"]
ssh_private_key = "~/.ssh/id_rsa"
timeout = 60
# Mock SSH client
mock_ssh = Mock()
mock_ssh_client.return_value = mock_ssh
mock_ssh.connect.return_value = None
# Mock exec_command to return inactive status
mock_stdout = Mock()
mock_stdout.readlines.return_value = ["inactive\n"]
mock_ssh.exec_command.return_value = (Mock(), mock_stdout, Mock())
common_node_functions.check_service_status(node, service, ssh_private_key, timeout)
# Verify error was logged for inactive service
mock_logging_error.assert_called()
error_call_str = str(mock_logging_error.call_args)
self.assertIn("inactive", error_call_str)
mock_ssh.close.assert_called_once()
@patch('time.sleep')
@patch('logging.error')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.paramiko.SSHClient')
def test_check_service_status_ssh_connection_fails(self, mock_ssh_client, mock_logging_info, mock_logging_error, mock_sleep):
"""
Test check_service_status handles SSH connection failures
"""
node = "192.168.1.100"
service = ["neutron-server"]
ssh_private_key = "~/.ssh/id_rsa"
timeout = 5
# Mock SSH client to raise exception
mock_ssh = Mock()
mock_ssh_client.return_value = mock_ssh
mock_ssh.connect.side_effect = Exception("Connection timeout")
# Mock exec_command for when connection eventually works (or doesn't)
mock_stdout = Mock()
mock_stdout.readlines.return_value = ["active\n"]
mock_ssh.exec_command.return_value = (Mock(), mock_stdout, Mock())
common_node_functions.check_service_status(node, service, ssh_private_key, timeout)
# Verify error was logged for SSH connection failure
mock_logging_error.assert_called()
error_call_str = str(mock_logging_error.call_args)
self.assertIn("Failed to ssh", error_call_str)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.paramiko.SSHClient')
def test_check_service_status_multiple_services(self, mock_ssh_client, mock_logging, mock_sleep):
"""
Test check_service_status with multiple services
"""
node = "192.168.1.100"
service = ["service1", "service2", "service3"]
ssh_private_key = "~/.ssh/id_rsa"
timeout = 60
# Mock SSH client
mock_ssh = Mock()
mock_ssh_client.return_value = mock_ssh
mock_ssh.connect.return_value = None
# Mock exec_command to return active status
mock_stdout = Mock()
mock_stdout.readlines.return_value = ["active\n"]
mock_ssh.exec_command.return_value = (Mock(), mock_stdout, Mock())
common_node_functions.check_service_status(node, service, ssh_private_key, timeout)
# Verify service status was checked for all services
self.assertEqual(mock_ssh.exec_command.call_count, 3)
mock_ssh.close.assert_called_once()
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.paramiko.SSHClient')
def test_check_service_status_retry_logic(self, mock_ssh_client, mock_logging, mock_sleep):
"""
Test check_service_status retry logic on connection failure then success
"""
node = "192.168.1.100"
service = ["neutron-server"]
ssh_private_key = "~/.ssh/id_rsa"
timeout = 10
# Mock SSH client
mock_ssh = Mock()
mock_ssh_client.return_value = mock_ssh
# First two attempts fail, third succeeds
mock_ssh.connect.side_effect = [
Exception("Timeout"),
Exception("Timeout"),
None # Success
]
# Mock exec_command
mock_stdout = Mock()
mock_stdout.readlines.return_value = ["active\n"]
mock_ssh.exec_command.return_value = (Mock(), mock_stdout, Mock())
common_node_functions.check_service_status(node, service, ssh_private_key, timeout)
# Verify multiple connection attempts were made
self.assertGreater(mock_ssh.connect.call_count, 1)
# Verify service was eventually checked
mock_ssh.exec_command.assert_called()
mock_ssh.close.assert_called_once()
class TestCommonNodeFunctionsIntegration(unittest.TestCase):
"""Integration-style tests for common_node_functions"""
def setUp(self):
"""Set up test fixtures"""
self.mock_kubecli = Mock(spec=KrknKubernetes)
@patch('logging.info')
def test_get_node_workflow_with_label_filtering(self, mock_logging):
"""
Test complete workflow of getting nodes with label selector and filtering
"""
label_selector = "node-role.kubernetes.io/worker"
instance_kill_count = 2
available_nodes = ["worker-1", "worker-2", "worker-3", "worker-4", "worker-5"]
self.mock_kubecli.list_killable_nodes.return_value = available_nodes
result = common_node_functions.get_node(label_selector, instance_kill_count, self.mock_kubecli)
self.assertEqual(len(result), 2)
# Verify no duplicates
self.assertEqual(len(result), len(set(result)))
# Verify all nodes are from the available list
self.assertTrue(all(node in available_nodes for node in result))
@patch('logging.info')
def test_get_node_by_name_validation_workflow(self, mock_logging):
"""
Test complete workflow of validating node names
"""
requested_nodes = ["node-a", "node-b"]
killable_nodes = ["node-a", "node-b", "node-c", "node-d"]
self.mock_kubecli.list_killable_nodes.return_value = killable_nodes
result = common_node_functions.get_node_by_name(requested_nodes, self.mock_kubecli)
self.assertEqual(result, requested_nodes)
self.mock_kubecli.list_killable_nodes.assert_called_once()
if __name__ == "__main__":
unittest.main()

View File

@@ -1,782 +0,0 @@
#!/usr/bin/env python3
"""
Test suite for GCP node scenarios
This test suite covers both the GCP class and gcp_node_scenarios class
using mocks to avoid actual GCP API calls.
Usage:
python -m coverage run -a -m unittest tests/test_gcp_node_scenarios.py -v
Assisted By: Claude Code
"""
import unittest
import sys
from unittest.mock import MagicMock, patch
# Mock external dependencies before any imports that use them
# Create proper nested mock structure for google modules
mock_google = MagicMock()
mock_google_auth = MagicMock()
mock_google_auth_transport = MagicMock()
mock_google_cloud = MagicMock()
mock_google_cloud_compute = MagicMock()
sys.modules['google'] = mock_google
sys.modules['google.auth'] = mock_google_auth
sys.modules['google.auth.transport'] = mock_google_auth_transport
sys.modules['google.auth.transport.requests'] = MagicMock()
sys.modules['google.cloud'] = mock_google_cloud
sys.modules['google.cloud.compute_v1'] = mock_google_cloud_compute
sys.modules['paramiko'] = MagicMock()
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.models.k8s import AffectedNode, AffectedNodeStatus
from krkn.scenario_plugins.node_actions.gcp_node_scenarios import GCP, gcp_node_scenarios
class TestGCP(unittest.TestCase):
"""Test cases for GCP class"""
def setUp(self):
"""Set up test fixtures"""
# Mock google.auth before creating GCP instance
self.auth_patcher = patch('krkn.scenario_plugins.node_actions.gcp_node_scenarios.google.auth.default')
self.compute_patcher = patch('krkn.scenario_plugins.node_actions.gcp_node_scenarios.compute_v1.InstancesClient')
self.mock_auth = self.auth_patcher.start()
self.mock_compute_client = self.compute_patcher.start()
# Configure auth mock to return credentials and project_id
mock_credentials = MagicMock()
self.mock_auth.return_value = (mock_credentials, 'test-project-123')
# Create GCP instance with mocked dependencies
self.gcp = GCP()
def tearDown(self):
"""Clean up after tests"""
self.auth_patcher.stop()
self.compute_patcher.stop()
def test_gcp_init_success(self):
"""Test GCP class initialization success"""
self.assertEqual(self.gcp.project_id, 'test-project-123')
self.assertIsNotNone(self.gcp.instance_client)
def test_gcp_init_failure(self):
"""Test GCP class initialization failure"""
with patch('krkn.scenario_plugins.node_actions.gcp_node_scenarios.google.auth.default', side_effect=Exception("Auth error")):
with self.assertRaises(Exception):
GCP()
def test_get_node_instance_success(self):
"""Test getting node instance successfully"""
# Create mock instance
mock_instance = MagicMock()
mock_instance.name = 'gke-cluster-node-1'
# Create mock response
mock_response = MagicMock()
mock_response.instances = [mock_instance]
# Mock aggregated_list to return our mock data
self.gcp.instance_client.aggregated_list = MagicMock(
return_value=[('zones/us-central1-a', mock_response)]
)
result = self.gcp.get_node_instance('gke-cluster-node-1')
self.assertEqual(result, mock_instance)
self.assertEqual(result.name, 'gke-cluster-node-1')
def test_get_node_instance_partial_match(self):
"""Test getting node instance with partial name match"""
mock_instance = MagicMock()
mock_instance.name = 'node-1'
mock_response = MagicMock()
mock_response.instances = [mock_instance]
self.gcp.instance_client.aggregated_list = MagicMock(
return_value=[('zones/us-central1-a', mock_response)]
)
# instance.name ('node-1') in node ('gke-cluster-node-1-abc') == True
result = self.gcp.get_node_instance('gke-cluster-node-1-abc')
self.assertIsNotNone(result)
self.assertEqual(result.name, 'node-1')
def test_get_node_instance_not_found(self):
"""Test getting node instance when not found"""
mock_response = MagicMock()
mock_response.instances = None
self.gcp.instance_client.aggregated_list = MagicMock(
return_value=[('zones/us-central1-a', mock_response)]
)
result = self.gcp.get_node_instance('non-existent-node')
self.assertIsNone(result)
def test_get_node_instance_failure(self):
"""Test getting node instance with failure"""
self.gcp.instance_client.aggregated_list = MagicMock(
side_effect=Exception("GCP error")
)
with self.assertRaises(Exception):
self.gcp.get_node_instance('node-1')
def test_get_instance_name(self):
"""Test getting instance name"""
mock_instance = MagicMock()
mock_instance.name = 'gke-cluster-node-1'
result = self.gcp.get_instance_name(mock_instance)
self.assertEqual(result, 'gke-cluster-node-1')
def test_get_instance_name_none(self):
"""Test getting instance name when name is None"""
mock_instance = MagicMock()
mock_instance.name = None
result = self.gcp.get_instance_name(mock_instance)
self.assertIsNone(result)
def test_get_instance_zone(self):
"""Test getting instance zone"""
mock_instance = MagicMock()
mock_instance.zone = 'https://www.googleapis.com/compute/v1/projects/test-project/zones/us-central1-a'
result = self.gcp.get_instance_zone(mock_instance)
self.assertEqual(result, 'us-central1-a')
def test_get_instance_zone_none(self):
"""Test getting instance zone when zone is None"""
mock_instance = MagicMock()
mock_instance.zone = None
result = self.gcp.get_instance_zone(mock_instance)
self.assertIsNone(result)
def test_get_node_instance_zone(self):
"""Test getting node instance zone"""
mock_instance = MagicMock()
mock_instance.name = 'gke-cluster-node-1'
mock_instance.zone = 'https://www.googleapis.com/compute/v1/projects/test-project/zones/us-west1-b'
# Patch get_node_instance to return our mock directly
with patch.object(self.gcp, 'get_node_instance', return_value=mock_instance):
result = self.gcp.get_node_instance_zone('node-1')
self.assertEqual(result, 'us-west1-b')
def test_get_node_instance_name(self):
"""Test getting node instance name"""
mock_instance = MagicMock()
mock_instance.name = 'gke-cluster-node-1'
# Patch get_node_instance to return our mock directly
with patch.object(self.gcp, 'get_node_instance', return_value=mock_instance):
result = self.gcp.get_node_instance_name('node-1')
self.assertEqual(result, 'gke-cluster-node-1')
def test_get_instance_id(self):
"""Test getting instance ID (alias for get_node_instance_name)"""
# Patch get_node_instance_name since get_instance_id just calls it
with patch.object(self.gcp, 'get_node_instance_name', return_value='gke-cluster-node-1'):
result = self.gcp.get_instance_id('node-1')
self.assertEqual(result, 'gke-cluster-node-1')
def test_start_instances_success(self):
"""Test starting instances successfully"""
instance_id = 'gke-cluster-node-1'
# Mock get_node_instance_zone
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.start = MagicMock()
self.gcp.start_instances(instance_id)
self.gcp.instance_client.start.assert_called_once()
def test_start_instances_failure(self):
"""Test starting instances with failure"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.start = MagicMock(
side_effect=Exception("GCP error")
)
with self.assertRaises(RuntimeError):
self.gcp.start_instances(instance_id)
def test_stop_instances_success(self):
"""Test stopping instances successfully"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.stop = MagicMock()
self.gcp.stop_instances(instance_id)
self.gcp.instance_client.stop.assert_called_once()
def test_stop_instances_failure(self):
"""Test stopping instances with failure"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.stop = MagicMock(
side_effect=Exception("GCP error")
)
with self.assertRaises(RuntimeError):
self.gcp.stop_instances(instance_id)
def test_suspend_instances_success(self):
"""Test suspending instances successfully"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.suspend = MagicMock()
self.gcp.suspend_instances(instance_id)
self.gcp.instance_client.suspend.assert_called_once()
def test_suspend_instances_failure(self):
"""Test suspending instances with failure"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.suspend = MagicMock(
side_effect=Exception("GCP error")
)
with self.assertRaises(RuntimeError):
self.gcp.suspend_instances(instance_id)
def test_terminate_instances_success(self):
"""Test terminating instances successfully"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.delete = MagicMock()
self.gcp.terminate_instances(instance_id)
self.gcp.instance_client.delete.assert_called_once()
def test_terminate_instances_failure(self):
"""Test terminating instances with failure"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.delete = MagicMock(
side_effect=Exception("GCP error")
)
with self.assertRaises(RuntimeError):
self.gcp.terminate_instances(instance_id)
def test_reboot_instances_success(self):
"""Test rebooting instances successfully"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.reset = MagicMock()
self.gcp.reboot_instances(instance_id)
self.gcp.instance_client.reset.assert_called_once()
def test_reboot_instances_failure(self):
"""Test rebooting instances with failure"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.reset = MagicMock(
side_effect=Exception("GCP error")
)
with self.assertRaises(RuntimeError):
self.gcp.reboot_instances(instance_id)
@patch('time.sleep')
def test_get_instance_status_success(self, _mock_sleep):
"""Test getting instance status successfully"""
instance_id = 'gke-cluster-node-1'
mock_instance = MagicMock()
mock_instance.status = 'RUNNING'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.get = MagicMock(return_value=mock_instance)
result = self.gcp.get_instance_status(instance_id, 'RUNNING', 60)
self.assertTrue(result)
@patch('time.sleep')
def test_get_instance_status_timeout(self, _mock_sleep):
"""Test getting instance status with timeout"""
instance_id = 'gke-cluster-node-1'
mock_instance = MagicMock()
mock_instance.status = 'PROVISIONING'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.get = MagicMock(return_value=mock_instance)
result = self.gcp.get_instance_status(instance_id, 'RUNNING', 5)
self.assertFalse(result)
@patch('time.sleep')
def test_get_instance_status_failure(self, _mock_sleep):
"""Test getting instance status with failure"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_node_instance_zone', return_value='us-central1-a'):
self.gcp.instance_client.get = MagicMock(
side_effect=Exception("GCP error")
)
with self.assertRaises(RuntimeError):
self.gcp.get_instance_status(instance_id, 'RUNNING', 60)
def test_wait_until_suspended_success(self):
"""Test waiting until instance is suspended"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_instance_status', return_value=True) as mock_get_status:
result = self.gcp.wait_until_suspended(instance_id, 60)
self.assertTrue(result)
mock_get_status.assert_called_once_with(instance_id, 'SUSPENDED', 60)
def test_wait_until_suspended_failure(self):
"""Test waiting until instance is suspended with failure"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_instance_status', return_value=False):
result = self.gcp.wait_until_suspended(instance_id, 60)
self.assertFalse(result)
def test_wait_until_running_success(self):
"""Test waiting until instance is running successfully"""
instance_id = 'gke-cluster-node-1'
affected_node = MagicMock(spec=AffectedNode)
with patch('time.time', side_effect=[100, 110]):
with patch.object(self.gcp, 'get_instance_status', return_value=True):
result = self.gcp.wait_until_running(instance_id, 60, affected_node)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once_with('running', 10)
def test_wait_until_running_without_affected_node(self):
"""Test waiting until running without affected node tracking"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_instance_status', return_value=True):
result = self.gcp.wait_until_running(instance_id, 60, None)
self.assertTrue(result)
def test_wait_until_stopped_success(self):
"""Test waiting until instance is stopped successfully"""
instance_id = 'gke-cluster-node-1'
affected_node = MagicMock(spec=AffectedNode)
with patch('time.time', side_effect=[100, 115]):
with patch.object(self.gcp, 'get_instance_status', return_value=True):
result = self.gcp.wait_until_stopped(instance_id, 60, affected_node)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once_with('stopped', 15)
def test_wait_until_stopped_without_affected_node(self):
"""Test waiting until stopped without affected node tracking"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_instance_status', return_value=True):
result = self.gcp.wait_until_stopped(instance_id, 60, None)
self.assertTrue(result)
def test_wait_until_terminated_success(self):
"""Test waiting until instance is terminated successfully"""
instance_id = 'gke-cluster-node-1'
affected_node = MagicMock(spec=AffectedNode)
with patch('time.time', side_effect=[100, 120]):
with patch.object(self.gcp, 'get_instance_status', return_value=True):
result = self.gcp.wait_until_terminated(instance_id, 60, affected_node)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once_with('terminated', 20)
def test_wait_until_terminated_without_affected_node(self):
"""Test waiting until terminated without affected node tracking"""
instance_id = 'gke-cluster-node-1'
with patch.object(self.gcp, 'get_instance_status', return_value=True):
result = self.gcp.wait_until_terminated(instance_id, 60, None)
self.assertTrue(result)
class TestGCPNodeScenarios(unittest.TestCase):
"""Test cases for gcp_node_scenarios class"""
def setUp(self):
"""Set up test fixtures"""
self.kubecli = MagicMock(spec=KrknKubernetes)
self.affected_nodes_status = AffectedNodeStatus()
# Mock the GCP class
with patch('krkn.scenario_plugins.node_actions.gcp_node_scenarios.GCP') as mock_gcp_class:
self.mock_gcp = MagicMock()
mock_gcp_class.return_value = self.mock_gcp
self.scenario = gcp_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=True,
affected_nodes_status=self.affected_nodes_status
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_start_scenario_success(self, mock_wait_ready):
"""Test node start scenario successfully"""
node = 'gke-cluster-node-1'
instance_id = 'gke-cluster-node-1'
mock_instance = MagicMock()
mock_instance.name = instance_id
self.mock_gcp.get_node_instance.return_value = mock_instance
self.mock_gcp.get_instance_name.return_value = instance_id
self.mock_gcp.start_instances.return_value = None
self.mock_gcp.wait_until_running.return_value = True
self.scenario.node_start_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
self.mock_gcp.get_node_instance.assert_called_once_with(node)
self.mock_gcp.get_instance_name.assert_called_once_with(mock_instance)
self.mock_gcp.start_instances.assert_called_once_with(instance_id)
self.mock_gcp.wait_until_running.assert_called_once()
mock_wait_ready.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
self.assertEqual(self.affected_nodes_status.affected_nodes[0].node_name, node)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_start_scenario_no_kube_check(self, mock_wait_ready):
"""Test node start scenario without kube check"""
node = 'gke-cluster-node-1'
instance_id = 'gke-cluster-node-1'
# Create scenario with node_action_kube_check=False
with patch('krkn.scenario_plugins.node_actions.gcp_node_scenarios.GCP') as mock_gcp_class:
mock_gcp = MagicMock()
mock_gcp_class.return_value = mock_gcp
scenario = gcp_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
mock_instance = MagicMock()
mock_instance.name = instance_id
mock_gcp.get_node_instance.return_value = mock_instance
mock_gcp.get_instance_name.return_value = instance_id
mock_gcp.start_instances.return_value = None
mock_gcp.wait_until_running.return_value = True
scenario.node_start_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
# Should not call wait_for_ready_status
mock_wait_ready.assert_not_called()
def test_node_start_scenario_failure(self):
"""Test node start scenario with failure"""
node = 'gke-cluster-node-1'
self.mock_gcp.get_node_instance.side_effect = Exception("GCP error")
with self.assertRaises(RuntimeError):
self.scenario.node_start_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
def test_node_stop_scenario_success(self, mock_wait_unknown):
"""Test node stop scenario successfully"""
node = 'gke-cluster-node-1'
instance_id = 'gke-cluster-node-1'
mock_instance = MagicMock()
mock_instance.name = instance_id
self.mock_gcp.get_node_instance.return_value = mock_instance
self.mock_gcp.get_instance_name.return_value = instance_id
self.mock_gcp.stop_instances.return_value = None
self.mock_gcp.wait_until_stopped.return_value = True
self.scenario.node_stop_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
self.mock_gcp.get_node_instance.assert_called_once_with(node)
self.mock_gcp.get_instance_name.assert_called_once_with(mock_instance)
self.mock_gcp.stop_instances.assert_called_once_with(instance_id)
self.mock_gcp.wait_until_stopped.assert_called_once()
mock_wait_unknown.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
def test_node_stop_scenario_no_kube_check(self, mock_wait_unknown):
"""Test node stop scenario without kube check"""
node = 'gke-cluster-node-1'
instance_id = 'gke-cluster-node-1'
# Create scenario with node_action_kube_check=False
with patch('krkn.scenario_plugins.node_actions.gcp_node_scenarios.GCP') as mock_gcp_class:
mock_gcp = MagicMock()
mock_gcp_class.return_value = mock_gcp
scenario = gcp_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
mock_instance = MagicMock()
mock_instance.name = instance_id
mock_gcp.get_node_instance.return_value = mock_instance
mock_gcp.get_instance_name.return_value = instance_id
mock_gcp.stop_instances.return_value = None
mock_gcp.wait_until_stopped.return_value = True
scenario.node_stop_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
# Should not call wait_for_unknown_status
mock_wait_unknown.assert_not_called()
def test_node_stop_scenario_failure(self):
"""Test node stop scenario with failure"""
node = 'gke-cluster-node-1'
self.mock_gcp.get_node_instance.side_effect = Exception("GCP error")
with self.assertRaises(RuntimeError):
self.scenario.node_stop_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
@patch('time.sleep')
def test_node_termination_scenario_success(self, _mock_sleep):
"""Test node termination scenario successfully"""
node = 'gke-cluster-node-1'
instance_id = 'gke-cluster-node-1'
mock_instance = MagicMock()
mock_instance.name = instance_id
self.mock_gcp.get_node_instance.return_value = mock_instance
self.mock_gcp.get_instance_name.return_value = instance_id
self.mock_gcp.terminate_instances.return_value = None
self.mock_gcp.wait_until_terminated.return_value = True
self.kubecli.list_nodes.return_value = []
self.scenario.node_termination_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
self.mock_gcp.get_node_instance.assert_called_once_with(node)
self.mock_gcp.get_instance_name.assert_called_once_with(mock_instance)
self.mock_gcp.terminate_instances.assert_called_once_with(instance_id)
self.mock_gcp.wait_until_terminated.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('time.sleep')
def test_node_termination_scenario_node_still_exists(self, _mock_sleep):
"""Test node termination scenario when node still exists"""
node = 'gke-cluster-node-1'
instance_id = 'gke-cluster-node-1'
mock_instance = MagicMock()
mock_instance.name = instance_id
self.mock_gcp.get_node_instance.return_value = mock_instance
self.mock_gcp.get_instance_name.return_value = instance_id
self.mock_gcp.terminate_instances.return_value = None
self.mock_gcp.wait_until_terminated.return_value = True
# Node still in list after timeout
self.kubecli.list_nodes.return_value = [node]
with self.assertRaises(RuntimeError):
self.scenario.node_termination_scenario(
instance_kill_count=1,
node=node,
timeout=2,
poll_interval=15
)
def test_node_termination_scenario_failure(self):
"""Test node termination scenario with failure"""
node = 'gke-cluster-node-1'
self.mock_gcp.get_node_instance.side_effect = Exception("GCP error")
with self.assertRaises(RuntimeError):
self.scenario.node_termination_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_reboot_scenario_success(self, mock_wait_ready, mock_wait_unknown):
"""Test node reboot scenario successfully"""
node = 'gke-cluster-node-1'
instance_id = 'gke-cluster-node-1'
mock_instance = MagicMock()
mock_instance.name = instance_id
self.mock_gcp.get_node_instance.return_value = mock_instance
self.mock_gcp.get_instance_name.return_value = instance_id
self.mock_gcp.reboot_instances.return_value = None
self.mock_gcp.wait_until_running.return_value = True
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node=node,
timeout=600
)
self.mock_gcp.get_node_instance.assert_called_once_with(node)
self.mock_gcp.get_instance_name.assert_called_once_with(mock_instance)
self.mock_gcp.reboot_instances.assert_called_once_with(instance_id)
self.mock_gcp.wait_until_running.assert_called_once()
# Should be called twice in GCP implementation
self.assertEqual(mock_wait_unknown.call_count, 1)
self.assertEqual(mock_wait_ready.call_count, 1)
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_reboot_scenario_no_kube_check(self, mock_wait_ready, mock_wait_unknown):
"""Test node reboot scenario without kube check"""
node = 'gke-cluster-node-1'
instance_id = 'gke-cluster-node-1'
# Create scenario with node_action_kube_check=False
with patch('krkn.scenario_plugins.node_actions.gcp_node_scenarios.GCP') as mock_gcp_class:
mock_gcp = MagicMock()
mock_gcp_class.return_value = mock_gcp
scenario = gcp_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
mock_instance = MagicMock()
mock_instance.name = instance_id
mock_gcp.get_node_instance.return_value = mock_instance
mock_gcp.get_instance_name.return_value = instance_id
mock_gcp.reboot_instances.return_value = None
mock_gcp.wait_until_running.return_value = True
scenario.node_reboot_scenario(
instance_kill_count=1,
node=node,
timeout=600
)
# Should not call wait functions
mock_wait_unknown.assert_not_called()
mock_wait_ready.assert_not_called()
def test_node_reboot_scenario_failure(self):
"""Test node reboot scenario with failure"""
node = 'gke-cluster-node-1'
self.mock_gcp.get_node_instance.side_effect = Exception("GCP error")
with self.assertRaises(RuntimeError):
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node=node,
timeout=600
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_start_scenario_multiple_kills(self, mock_wait_ready):
"""Test node start scenario with multiple kill counts"""
node = 'gke-cluster-node-1'
instance_id = 'gke-cluster-node-1'
mock_instance = MagicMock()
mock_instance.name = instance_id
self.mock_gcp.get_node_instance.return_value = mock_instance
self.mock_gcp.get_instance_name.return_value = instance_id
self.mock_gcp.start_instances.return_value = None
self.mock_gcp.wait_until_running.return_value = True
self.scenario.node_start_scenario(
instance_kill_count=3,
node=node,
timeout=600,
poll_interval=15
)
self.assertEqual(self.mock_gcp.start_instances.call_count, 3)
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 3)
if __name__ == "__main__":
unittest.main()

View File

@@ -1,637 +0,0 @@
#!/usr/bin/env python3
"""
Test suite for IBM Cloud VPC node scenarios
This test suite covers both the IbmCloud class and ibm_node_scenarios class
using mocks to avoid actual IBM Cloud API calls.
IMPORTANT: These tests use comprehensive mocking and do NOT require any cloud provider
settings or credentials. No environment variables need to be set. All API clients and
external dependencies are mocked.
Test Coverage:
- TestIbmCloud: 30 tests for the IbmCloud VPC API client class
- Initialization, SSL configuration, instance operations (start/stop/reboot/delete)
- Status checking, wait operations, error handling
- TestIbmNodeScenarios: 14 tests for node scenario orchestration
- Node start/stop/reboot/terminate scenarios
- Exception handling, multiple kill counts
Usage:
# Run all tests
python -m unittest tests.test_ibmcloud_node_scenarios -v
# Run with coverage
python -m coverage run -a -m unittest tests/test_ibmcloud_node_scenarios.py -v
Assisted By: Claude Code
"""
import unittest
import sys
import json
from unittest.mock import MagicMock, patch, Mock
# Mock paramiko and IBM SDK before importing
sys.modules['paramiko'] = MagicMock()
sys.modules['ibm_vpc'] = MagicMock()
sys.modules['ibm_cloud_sdk_core'] = MagicMock()
sys.modules['ibm_cloud_sdk_core.authenticators'] = MagicMock()
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.models.k8s import AffectedNode, AffectedNodeStatus
from krkn.scenario_plugins.node_actions.ibmcloud_node_scenarios import (
IbmCloud,
ibm_node_scenarios
)
class TestIbmCloud(unittest.TestCase):
"""Test cases for IbmCloud class"""
def setUp(self):
"""Set up test fixtures"""
# Set up environment variables
self.env_patcher = patch.dict('os.environ', {
'IBMC_APIKEY': 'test-api-key',
'IBMC_URL': 'https://test.cloud.ibm.com'
})
self.env_patcher.start()
# Mock IBM VPC client
self.mock_vpc = MagicMock()
self.vpc_patcher = patch('krkn.scenario_plugins.node_actions.ibmcloud_node_scenarios.VpcV1')
self.mock_vpc_class = self.vpc_patcher.start()
self.mock_vpc_class.return_value = self.mock_vpc
# Mock IAMAuthenticator
self.auth_patcher = patch('krkn.scenario_plugins.node_actions.ibmcloud_node_scenarios.IAMAuthenticator')
self.mock_auth = self.auth_patcher.start()
# Create IbmCloud instance
self.ibm = IbmCloud()
def tearDown(self):
"""Clean up after tests"""
self.env_patcher.stop()
self.vpc_patcher.stop()
self.auth_patcher.stop()
def test_init_success(self):
"""Test IbmCloud class initialization"""
self.assertIsNotNone(self.ibm.service)
self.mock_vpc.set_service_url.assert_called_once_with('https://test.cloud.ibm.com')
def test_init_missing_api_key(self):
"""Test initialization fails when IBMC_APIKEY is missing"""
with patch.dict('os.environ', {
'IBMC_URL': 'https://test.cloud.ibm.com'
}, clear=True):
with self.assertRaises(Exception) as context:
IbmCloud()
self.assertIn("IBMC_APIKEY", str(context.exception))
def test_init_missing_url(self):
"""Test initialization fails when IBMC_URL is missing"""
with patch.dict('os.environ', {
'IBMC_APIKEY': 'test-api-key'
}, clear=True):
with self.assertRaises(Exception) as context:
IbmCloud()
self.assertIn("IBMC_URL", str(context.exception))
def test_configure_ssl_verification_disabled(self):
"""Test disabling SSL verification"""
self.ibm.configure_ssl_verification(True)
self.mock_vpc.set_disable_ssl_verification.assert_called_with(True)
def test_configure_ssl_verification_enabled(self):
"""Test enabling SSL verification"""
self.ibm.configure_ssl_verification(False)
self.mock_vpc.set_disable_ssl_verification.assert_called_with(False)
def test_get_instance_id_success(self):
"""Test getting instance ID by node name"""
mock_list = [
{'vpc_name': 'test-node-1', 'vpc_id': 'vpc-1'},
{'vpc_name': 'test-node-2', 'vpc_id': 'vpc-2'}
]
with patch.object(self.ibm, 'list_instances', return_value=mock_list):
instance_id = self.ibm.get_instance_id('test-node-1')
self.assertEqual(instance_id, 'vpc-1')
def test_get_instance_id_not_found(self):
"""Test getting instance ID when node not found"""
mock_list = [
{'vpc_name': 'test-node-1', 'vpc_id': 'vpc-1'}
]
with patch.object(self.ibm, 'list_instances', return_value=mock_list):
with self.assertRaises(SystemExit):
self.ibm.get_instance_id('non-existent-node')
def test_delete_instance_success(self):
"""Test deleting instance successfully"""
self.mock_vpc.delete_instance.return_value = None
result = self.ibm.delete_instance('vpc-123')
self.mock_vpc.delete_instance.assert_called_once_with('vpc-123')
# Method doesn't explicitly return True, so we just verify no exception
def test_delete_instance_failure(self):
"""Test deleting instance with failure"""
self.mock_vpc.delete_instance.side_effect = Exception("API Error")
result = self.ibm.delete_instance('vpc-123')
self.assertEqual(result, False)
def test_reboot_instances_success(self):
"""Test rebooting instance successfully"""
self.mock_vpc.create_instance_action.return_value = None
result = self.ibm.reboot_instances('vpc-123')
self.assertTrue(result)
self.mock_vpc.create_instance_action.assert_called_once_with(
'vpc-123',
type='reboot'
)
def test_reboot_instances_failure(self):
"""Test rebooting instance with failure"""
self.mock_vpc.create_instance_action.side_effect = Exception("API Error")
result = self.ibm.reboot_instances('vpc-123')
self.assertEqual(result, False)
def test_stop_instances_success(self):
"""Test stopping instance successfully"""
self.mock_vpc.create_instance_action.return_value = None
result = self.ibm.stop_instances('vpc-123')
self.assertTrue(result)
self.mock_vpc.create_instance_action.assert_called_once_with(
'vpc-123',
type='stop'
)
def test_stop_instances_failure(self):
"""Test stopping instance with failure"""
self.mock_vpc.create_instance_action.side_effect = Exception("API Error")
result = self.ibm.stop_instances('vpc-123')
self.assertEqual(result, False)
def test_start_instances_success(self):
"""Test starting instance successfully"""
self.mock_vpc.create_instance_action.return_value = None
result = self.ibm.start_instances('vpc-123')
self.assertTrue(result)
self.mock_vpc.create_instance_action.assert_called_once_with(
'vpc-123',
type='start'
)
def test_start_instances_failure(self):
"""Test starting instance with failure"""
self.mock_vpc.create_instance_action.side_effect = Exception("API Error")
result = self.ibm.start_instances('vpc-123')
self.assertEqual(result, False)
def test_list_instances_success(self):
"""Test listing instances successfully"""
mock_result = Mock()
mock_result.get_result.return_value = {
'instances': [
{'name': 'node-1', 'id': 'vpc-1'},
{'name': 'node-2', 'id': 'vpc-2'}
],
'total_count': 2,
'limit': 50
}
self.mock_vpc.list_instances.return_value = mock_result
instances = self.ibm.list_instances()
self.assertEqual(len(instances), 2)
self.assertEqual(instances[0]['vpc_name'], 'node-1')
self.assertEqual(instances[1]['vpc_name'], 'node-2')
def test_list_instances_with_pagination(self):
"""Test listing instances with pagination"""
# First call returns limit reached
mock_result_1 = Mock()
mock_result_1.get_result.return_value = {
'instances': [
{'name': 'node-1', 'id': 'vpc-1'}
],
'total_count': 1,
'limit': 1
}
# Second call returns remaining
mock_result_2 = Mock()
mock_vpc_2 = type('obj', (object,), {'name': 'node-2', 'id': 'vpc-2'})
mock_result_2.get_result.return_value = {
'instances': [mock_vpc_2],
'total_count': 1,
'limit': 50
}
self.mock_vpc.list_instances.side_effect = [mock_result_1, mock_result_2]
instances = self.ibm.list_instances()
self.assertEqual(len(instances), 2)
self.assertEqual(self.mock_vpc.list_instances.call_count, 2)
def test_list_instances_failure(self):
"""Test listing instances with failure"""
self.mock_vpc.list_instances.side_effect = Exception("API Error")
with self.assertRaises(SystemExit):
self.ibm.list_instances()
def test_find_id_in_list(self):
"""Test finding ID in VPC list"""
vpc_list = [
{'vpc_name': 'vpc-1', 'vpc_id': 'id-1'},
{'vpc_name': 'vpc-2', 'vpc_id': 'id-2'}
]
vpc_id = self.ibm.find_id_in_list('vpc-2', vpc_list)
self.assertEqual(vpc_id, 'id-2')
def test_find_id_in_list_not_found(self):
"""Test finding ID in VPC list when not found"""
vpc_list = [
{'vpc_name': 'vpc-1', 'vpc_id': 'id-1'}
]
vpc_id = self.ibm.find_id_in_list('vpc-3', vpc_list)
self.assertIsNone(vpc_id)
def test_get_instance_status_success(self):
"""Test getting instance status successfully"""
mock_result = Mock()
mock_result.get_result.return_value = {'status': 'running'}
self.mock_vpc.get_instance.return_value = mock_result
status = self.ibm.get_instance_status('vpc-123')
self.assertEqual(status, 'running')
def test_get_instance_status_failure(self):
"""Test getting instance status with failure"""
self.mock_vpc.get_instance.side_effect = Exception("API Error")
status = self.ibm.get_instance_status('vpc-123')
self.assertIsNone(status)
def test_wait_until_deleted_success(self):
"""Test waiting until instance is deleted"""
# First call returns status, second returns None (deleted)
with patch.object(self.ibm, 'get_instance_status', side_effect=['deleting', None]):
affected_node = MagicMock(spec=AffectedNode)
with patch('time.time', side_effect=[100, 105]), \
patch('time.sleep'):
result = self.ibm.wait_until_deleted('vpc-123', timeout=60, affected_node=affected_node)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once_with("terminated", 5)
def test_wait_until_deleted_timeout(self):
"""Test waiting until deleted with timeout"""
with patch.object(self.ibm, 'get_instance_status', return_value='deleting'):
with patch('time.sleep'):
result = self.ibm.wait_until_deleted('vpc-123', timeout=5)
self.assertFalse(result)
def test_wait_until_running_success(self):
"""Test waiting until instance is running"""
with patch.object(self.ibm, 'get_instance_status', side_effect=['starting', 'running']):
affected_node = MagicMock(spec=AffectedNode)
with patch('time.time', side_effect=[100, 105]), \
patch('time.sleep'):
result = self.ibm.wait_until_running('vpc-123', timeout=60, affected_node=affected_node)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once_with("running", 5)
def test_wait_until_running_timeout(self):
"""Test waiting until running with timeout"""
with patch.object(self.ibm, 'get_instance_status', return_value='starting'):
with patch('time.sleep'):
result = self.ibm.wait_until_running('vpc-123', timeout=5)
self.assertFalse(result)
def test_wait_until_stopped_success(self):
"""Test waiting until instance is stopped"""
with patch.object(self.ibm, 'get_instance_status', side_effect=['stopping', 'stopped']):
affected_node = MagicMock(spec=AffectedNode)
with patch('time.time', side_effect=[100, 105]), \
patch('time.sleep'):
result = self.ibm.wait_until_stopped('vpc-123', timeout=60, affected_node=affected_node)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once_with("stopped", 5)
def test_wait_until_stopped_timeout(self):
"""Test waiting until stopped with timeout"""
with patch.object(self.ibm, 'get_instance_status', return_value='stopping'):
with patch('time.sleep'):
result = self.ibm.wait_until_stopped('vpc-123', timeout=5, affected_node=None)
self.assertFalse(result)
def test_wait_until_rebooted_success(self):
"""Test waiting until instance is rebooted"""
# First call checks reboot status (not 'starting'), second call in wait_until_running checks status
with patch.object(self.ibm, 'get_instance_status', side_effect=['running', 'running']):
affected_node = MagicMock(spec=AffectedNode)
time_values = [100, 105, 110]
with patch('time.time', side_effect=time_values), \
patch('time.sleep'):
result = self.ibm.wait_until_rebooted('vpc-123', timeout=60, affected_node=affected_node)
self.assertTrue(result)
def test_wait_until_rebooted_timeout(self):
"""Test waiting until rebooted with timeout"""
with patch.object(self.ibm, 'get_instance_status', return_value='starting'):
with patch('time.sleep'):
result = self.ibm.wait_until_rebooted('vpc-123', timeout=5, affected_node=None)
self.assertFalse(result)
class TestIbmNodeScenarios(unittest.TestCase):
"""Test cases for ibm_node_scenarios class"""
def setUp(self):
"""Set up test fixtures"""
# Mock KrknKubernetes
self.mock_kubecli = MagicMock(spec=KrknKubernetes)
self.affected_nodes_status = AffectedNodeStatus()
# Mock the IbmCloud class entirely to avoid any real API calls
self.ibm_cloud_patcher = patch('krkn.scenario_plugins.node_actions.ibmcloud_node_scenarios.IbmCloud')
self.mock_ibm_cloud_class = self.ibm_cloud_patcher.start()
# Create a mock instance that will be returned when IbmCloud() is called
self.mock_ibm_cloud_instance = MagicMock()
self.mock_ibm_cloud_class.return_value = self.mock_ibm_cloud_instance
# Create ibm_node_scenarios instance
self.scenario = ibm_node_scenarios(
kubecli=self.mock_kubecli,
node_action_kube_check=True,
affected_nodes_status=self.affected_nodes_status,
disable_ssl_verification=False
)
def tearDown(self):
"""Clean up after tests"""
self.ibm_cloud_patcher.stop()
def test_init(self):
"""Test ibm_node_scenarios initialization"""
self.assertIsNotNone(self.scenario.ibmcloud)
self.assertTrue(self.scenario.node_action_kube_check)
self.assertEqual(self.scenario.kubecli, self.mock_kubecli)
def test_init_with_ssl_disabled(self):
"""Test initialization with SSL verification disabled"""
scenario = ibm_node_scenarios(
kubecli=self.mock_kubecli,
node_action_kube_check=True,
affected_nodes_status=self.affected_nodes_status,
disable_ssl_verification=True
)
# Verify configure_ssl_verification was called
self.mock_ibm_cloud_instance.configure_ssl_verification.assert_called_with(True)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_start_scenario_success(self, mock_wait_ready):
"""Test node start scenario successfully"""
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'vpc-123'
self.mock_ibm_cloud_instance.start_instances.return_value = True
self.mock_ibm_cloud_instance.wait_until_running.return_value = True
self.scenario.node_start_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
self.assertEqual(self.affected_nodes_status.affected_nodes[0].node_name, 'test-node')
mock_wait_ready.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_start_scenario_no_kube_check(self, mock_wait_ready):
"""Test node start scenario without Kubernetes check"""
self.scenario.node_action_kube_check = False
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'vpc-123'
self.mock_ibm_cloud_instance.start_instances.return_value = True
self.mock_ibm_cloud_instance.wait_until_running.return_value = True
self.scenario.node_start_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
mock_wait_ready.assert_not_called()
def test_node_stop_scenario_success(self):
"""Test node stop scenario successfully"""
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'vpc-123'
self.mock_ibm_cloud_instance.stop_instances.return_value = True
self.mock_ibm_cloud_instance.wait_until_stopped.return_value = True
self.scenario.node_stop_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
def test_node_stop_scenario_failure(self):
"""Test node stop scenario with stop command failure"""
# Configure mock - get_instance_id succeeds but stop_instances fails
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'vpc-123'
self.mock_ibm_cloud_instance.stop_instances.return_value = False
# Code raises exception inside try/except, so it should be caught and logged
self.scenario.node_stop_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
# Verify that affected nodes were not appended since exception was caught
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 0)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_reboot_scenario_success(self, mock_wait_ready, mock_wait_unknown):
"""Test node reboot scenario successfully"""
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'vpc-123'
self.mock_ibm_cloud_instance.reboot_instances.return_value = True
self.mock_ibm_cloud_instance.wait_until_rebooted.return_value = True
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
soft_reboot=False
)
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
mock_wait_unknown.assert_called_once()
mock_wait_ready.assert_called_once()
def test_node_reboot_scenario_failure(self):
"""Test node reboot scenario with reboot command failure"""
# Configure mock - get_instance_id succeeds but reboot_instances fails
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'vpc-123'
self.mock_ibm_cloud_instance.reboot_instances.return_value = False
# Code raises exception inside try/except, so it should be caught and logged
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
soft_reboot=False
)
# Verify that affected nodes were not appended since exception was caught
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 0)
def test_node_terminate_scenario_success(self):
"""Test node terminate scenario successfully"""
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'vpc-123'
self.mock_ibm_cloud_instance.delete_instance.return_value = None
self.mock_ibm_cloud_instance.wait_until_deleted.return_value = True
self.scenario.node_terminate_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
def test_node_scenario_multiple_kill_count(self):
"""Test node scenario with multiple kill count"""
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'vpc-123'
self.mock_ibm_cloud_instance.stop_instances.return_value = True
self.mock_ibm_cloud_instance.wait_until_stopped.return_value = True
self.scenario.node_stop_scenario(
instance_kill_count=2,
node='test-node',
timeout=60,
poll_interval=5
)
# Should have 2 affected nodes for 2 iterations
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 2)
def test_node_start_scenario_exception(self):
"""Test node start scenario with exception during operation"""
# Configure mock - get_instance_id succeeds but start_instances fails
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'vpc-123'
self.mock_ibm_cloud_instance.start_instances.side_effect = Exception("API Error")
# Should handle exception gracefully
self.scenario.node_start_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
# Verify affected node still added even on failure
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
def test_node_stop_scenario_exception(self):
"""Test node stop scenario with exception"""
# Configure mock to raise SystemExit
self.mock_ibm_cloud_instance.get_instance_id.side_effect = SystemExit(1)
# Should handle system exit gracefully
with self.assertRaises(SystemExit):
self.scenario.node_stop_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
def test_node_reboot_scenario_exception(self):
"""Test node reboot scenario with exception during operation"""
# Configure mock - get_instance_id succeeds but reboot_instances fails
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'vpc-123'
self.mock_ibm_cloud_instance.reboot_instances.side_effect = Exception("API Error")
# Should handle exception gracefully
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
soft_reboot=False
)
def test_node_terminate_scenario_exception(self):
"""Test node terminate scenario with exception"""
# Configure mock - get_instance_id succeeds but delete_instance fails
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'vpc-123'
self.mock_ibm_cloud_instance.delete_instance.side_effect = Exception("API Error")
# Should handle exception gracefully
self.scenario.node_terminate_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
if __name__ == '__main__':
unittest.main()

View File

@@ -1,673 +0,0 @@
#!/usr/bin/env python3
"""
Test suite for IBM Cloud Power node scenarios
This test suite covers both the IbmCloudPower class and ibmcloud_power_node_scenarios class
using mocks to avoid actual IBM Cloud API calls.
IMPORTANT: These tests use comprehensive mocking and do NOT require any cloud provider
settings or credentials. No environment variables need to be set. All API clients and
external dependencies are mocked.
Test Coverage:
- TestIbmCloudPower: 31 tests for the IbmCloudPower API client class
- Authentication, instance operations (start/stop/reboot/delete)
- Status checking, wait operations, error handling
- TestIbmCloudPowerNodeScenarios: 10 tests for node scenario orchestration
- Node start/stop/reboot/terminate scenarios
- Exception handling, multiple kill counts
Usage:
# Run all tests
python -m unittest tests.test_ibmcloud_power_node_scenarios -v
# Run with coverage
python -m coverage run -a -m unittest tests/test_ibmcloud_power_node_scenarios.py -v
Assisted By: Claude Code
"""
import unittest
import sys
import json
from unittest.mock import MagicMock, patch, Mock
# Mock paramiko before importing
sys.modules['paramiko'] = MagicMock()
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.models.k8s import AffectedNode, AffectedNodeStatus
from krkn.scenario_plugins.node_actions.ibmcloud_power_node_scenarios import (
IbmCloudPower,
ibmcloud_power_node_scenarios
)
class TestIbmCloudPower(unittest.TestCase):
"""Test cases for IbmCloudPower class"""
def setUp(self):
"""Set up test fixtures"""
# Set up environment variables
self.env_patcher = patch.dict('os.environ', {
'IBMC_APIKEY': 'test-api-key',
'IBMC_POWER_URL': 'https://test.cloud.ibm.com',
'IBMC_POWER_CRN': 'crn:v1:bluemix:public:power-iaas:us-south:a/abc123:instance-id::'
})
self.env_patcher.start()
# Mock requests
self.requests_patcher = patch('krkn.scenario_plugins.node_actions.ibmcloud_power_node_scenarios.requests')
self.mock_requests = self.requests_patcher.start()
# Mock authentication response
mock_auth_response = Mock()
mock_auth_response.status_code = 200
mock_auth_response.json.return_value = {
'access_token': 'test-token',
'token_type': 'Bearer',
'expires_in': 3600
}
self.mock_requests.request.return_value = mock_auth_response
# Create IbmCloudPower instance
self.ibm = IbmCloudPower()
def tearDown(self):
"""Clean up after tests"""
self.env_patcher.stop()
self.requests_patcher.stop()
def test_init_success(self):
"""Test IbmCloudPower class initialization"""
self.assertIsNotNone(self.ibm.api_key)
self.assertEqual(self.ibm.api_key, 'test-api-key')
self.assertIsNotNone(self.ibm.service_url)
self.assertEqual(self.ibm.service_url, 'https://test.cloud.ibm.com')
self.assertIsNotNone(self.ibm.CRN)
self.assertEqual(self.ibm.cloud_instance_id, 'instance-id')
self.assertIsNotNone(self.ibm.token)
self.assertIsNotNone(self.ibm.headers)
def test_init_missing_api_key(self):
"""Test initialization fails when IBMC_APIKEY is missing"""
with patch.dict('os.environ', {
'IBMC_POWER_URL': 'https://test.cloud.ibm.com',
'IBMC_POWER_CRN': 'crn:v1:bluemix:public:power-iaas:us-south:a/abc123:instance-id::'
}, clear=True):
with self.assertRaises(Exception) as context:
IbmCloudPower()
self.assertIn("IBMC_APIKEY", str(context.exception))
def test_init_missing_power_url(self):
"""Test initialization fails when IBMC_POWER_URL is missing"""
with patch.dict('os.environ', {
'IBMC_APIKEY': 'test-api-key',
'IBMC_POWER_CRN': 'crn:v1:bluemix:public:power-iaas:us-south:a/abc123:instance-id::'
}, clear=True):
with self.assertRaises(Exception) as context:
IbmCloudPower()
self.assertIn("IBMC_POWER_URL", str(context.exception))
def test_init_missing_crn(self):
"""Test initialization fails when IBMC_POWER_CRN is missing"""
with patch.dict('os.environ', {
'IBMC_APIKEY': 'test-api-key',
'IBMC_POWER_URL': 'https://test.cloud.ibm.com'
}, clear=True):
# The code will fail on split() before the IBMC_POWER_CRN check
# so we check for either AttributeError or the exception message
with self.assertRaises((Exception, AttributeError)):
IbmCloudPower()
def test_authenticate_success(self):
"""Test successful authentication"""
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {
'access_token': 'new-test-token',
'token_type': 'Bearer',
'expires_in': 3600
}
self.mock_requests.request.return_value = mock_response
self.ibm.authenticate()
self.assertEqual(self.ibm.token['access_token'], 'new-test-token')
self.assertIn('Authorization', self.ibm.headers)
self.assertEqual(self.ibm.headers['Authorization'], 'Bearer new-test-token')
def test_authenticate_failure(self):
"""Test authentication failure"""
mock_response = Mock()
mock_response.status_code = 401
mock_response.raise_for_status.side_effect = Exception("Unauthorized")
self.mock_requests.request.return_value = mock_response
with self.assertRaises(Exception):
self.ibm.authenticate()
def test_get_instance_id_success(self):
"""Test getting instance ID by node name"""
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {
'pvmInstances': [
{'serverName': 'test-node-1', 'pvmInstanceID': 'pvm-1'},
{'serverName': 'test-node-2', 'pvmInstanceID': 'pvm-2'}
]
}
self.mock_requests.request.return_value = mock_response
instance_id = self.ibm.get_instance_id('test-node-1')
self.assertEqual(instance_id, 'pvm-1')
def test_get_instance_id_not_found(self):
"""Test getting instance ID when node not found"""
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {
'pvmInstances': [
{'serverName': 'test-node-1', 'pvmInstanceID': 'pvm-1'}
]
}
self.mock_requests.request.return_value = mock_response
with self.assertRaises(SystemExit):
self.ibm.get_instance_id('non-existent-node')
def test_delete_instance_success(self):
"""Test deleting instance successfully"""
mock_response = Mock()
mock_response.status_code = 200
self.mock_requests.request.return_value = mock_response
result = self.ibm.delete_instance('pvm-123')
self.mock_requests.request.assert_called()
call_args = self.mock_requests.request.call_args
self.assertIn('immediate-shutdown', call_args[1]['data'])
def test_delete_instance_failure(self):
"""Test deleting instance with failure"""
self.mock_requests.request.side_effect = Exception("API Error")
result = self.ibm.delete_instance('pvm-123')
self.assertEqual(result, False)
def test_reboot_instances_hard_reboot(self):
"""Test hard reboot of instance"""
mock_response = Mock()
mock_response.status_code = 200
self.mock_requests.request.return_value = mock_response
result = self.ibm.reboot_instances('pvm-123', soft=False)
self.assertTrue(result)
call_args = self.mock_requests.request.call_args
self.assertIn('hard-reboot', call_args[1]['data'])
def test_reboot_instances_soft_reboot(self):
"""Test soft reboot of instance"""
mock_response = Mock()
mock_response.status_code = 200
self.mock_requests.request.return_value = mock_response
result = self.ibm.reboot_instances('pvm-123', soft=True)
self.assertTrue(result)
call_args = self.mock_requests.request.call_args
self.assertIn('soft-reboot', call_args[1]['data'])
def test_reboot_instances_failure(self):
"""Test reboot instance with failure"""
self.mock_requests.request.side_effect = Exception("API Error")
result = self.ibm.reboot_instances('pvm-123')
self.assertEqual(result, False)
def test_stop_instances_success(self):
"""Test stopping instance successfully"""
mock_response = Mock()
mock_response.status_code = 200
self.mock_requests.request.return_value = mock_response
result = self.ibm.stop_instances('pvm-123')
self.assertTrue(result)
call_args = self.mock_requests.request.call_args
self.assertIn('stop', call_args[1]['data'])
def test_stop_instances_failure(self):
"""Test stopping instance with failure"""
self.mock_requests.request.side_effect = Exception("API Error")
result = self.ibm.stop_instances('pvm-123')
self.assertEqual(result, False)
def test_start_instances_success(self):
"""Test starting instance successfully"""
mock_response = Mock()
mock_response.status_code = 200
self.mock_requests.request.return_value = mock_response
result = self.ibm.start_instances('pvm-123')
self.assertTrue(result)
call_args = self.mock_requests.request.call_args
self.assertIn('start', call_args[1]['data'])
def test_start_instances_failure(self):
"""Test starting instance with failure"""
self.mock_requests.request.side_effect = Exception("API Error")
result = self.ibm.start_instances('pvm-123')
self.assertEqual(result, False)
def test_list_instances_success(self):
"""Test listing instances successfully"""
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {
'pvmInstances': [
type('obj', (object,), {'serverName': 'node-1', 'pvmInstanceID': 'pvm-1'}),
type('obj', (object,), {'serverName': 'node-2', 'pvmInstanceID': 'pvm-2'})
]
}
self.mock_requests.request.return_value = mock_response
instances = self.ibm.list_instances()
self.assertEqual(len(instances), 2)
self.assertEqual(instances[0]['serverName'], 'node-1')
self.assertEqual(instances[1]['serverName'], 'node-2')
def test_list_instances_failure(self):
"""Test listing instances with failure"""
self.mock_requests.request.side_effect = Exception("API Error")
with self.assertRaises(SystemExit):
self.ibm.list_instances()
def test_get_instance_status_success(self):
"""Test getting instance status successfully"""
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {'status': 'ACTIVE'}
self.mock_requests.request.return_value = mock_response
status = self.ibm.get_instance_status('pvm-123')
self.assertEqual(status, 'ACTIVE')
def test_get_instance_status_failure(self):
"""Test getting instance status with failure"""
self.mock_requests.request.side_effect = Exception("API Error")
status = self.ibm.get_instance_status('pvm-123')
self.assertIsNone(status)
def test_wait_until_deleted_success(self):
"""Test waiting until instance is deleted"""
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {'status': None}
self.mock_requests.request.side_effect = [
mock_response,
Exception("Not found")
]
affected_node = MagicMock(spec=AffectedNode)
with patch('time.time', side_effect=[100, 105]), \
patch('time.sleep'):
result = self.ibm.wait_until_deleted('pvm-123', timeout=60, affected_node=affected_node)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once()
def test_wait_until_deleted_timeout(self):
"""Test waiting until deleted with timeout"""
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {'status': 'DELETING'}
self.mock_requests.request.return_value = mock_response
with patch('time.sleep'):
result = self.ibm.wait_until_deleted('pvm-123', timeout=5)
self.assertFalse(result)
def test_wait_until_running_success(self):
"""Test waiting until instance is running"""
mock_responses = [
Mock(status_code=200, json=lambda: {'status': 'BUILD'}),
Mock(status_code=200, json=lambda: {'status': 'ACTIVE'})
]
self.mock_requests.request.side_effect = mock_responses
affected_node = MagicMock(spec=AffectedNode)
with patch('time.time', side_effect=[100, 105]), \
patch('time.sleep'):
result = self.ibm.wait_until_running('pvm-123', timeout=60, affected_node=affected_node)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once_with("running", 5)
def test_wait_until_running_timeout(self):
"""Test waiting until running with timeout"""
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {'status': 'BUILD'}
self.mock_requests.request.return_value = mock_response
with patch('time.sleep'):
result = self.ibm.wait_until_running('pvm-123', timeout=5)
self.assertFalse(result)
def test_wait_until_stopped_success(self):
"""Test waiting until instance is stopped"""
mock_responses = [
Mock(status_code=200, json=lambda: {'status': 'STOPPING'}),
Mock(status_code=200, json=lambda: {'status': 'STOPPED'})
]
self.mock_requests.request.side_effect = mock_responses
affected_node = MagicMock(spec=AffectedNode)
with patch('time.time', side_effect=[100, 105]), \
patch('time.sleep'):
result = self.ibm.wait_until_stopped('pvm-123', timeout=60, affected_node=affected_node)
self.assertTrue(result)
affected_node.set_affected_node_status.assert_called_once_with("stopped", 5)
def test_wait_until_stopped_timeout(self):
"""Test waiting until stopped with timeout"""
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {'status': 'STOPPING'}
self.mock_requests.request.return_value = mock_response
with patch('time.sleep'):
result = self.ibm.wait_until_stopped('pvm-123', timeout=5, affected_node=None)
self.assertFalse(result)
def test_wait_until_rebooted_success(self):
"""Test waiting until instance is rebooted"""
# wait_until_rebooted calls get_instance_status until NOT in reboot state,
# then calls wait_until_running which also calls get_instance_status
mock_responses = [
Mock(status_code=200, json=lambda: {'status': 'HARD_REBOOT'}), # First check - still rebooting
Mock(status_code=200, json=lambda: {'status': 'ACTIVE'}), # Second check - done rebooting
Mock(status_code=200, json=lambda: {'status': 'ACTIVE'}) # wait_until_running check
]
self.mock_requests.request.side_effect = mock_responses
affected_node = MagicMock(spec=AffectedNode)
# Mock all time() calls - need many values because logging uses time.time() extensively
time_values = [100] * 20 # Just provide enough time values
with patch('time.time', side_effect=time_values), \
patch('time.sleep'):
result = self.ibm.wait_until_rebooted('pvm-123', timeout=60, affected_node=affected_node)
self.assertTrue(result)
def test_wait_until_rebooted_timeout(self):
"""Test waiting until rebooted with timeout"""
mock_response = Mock()
mock_response.status_code = 200
mock_response.json.return_value = {'status': 'HARD_REBOOT'}
self.mock_requests.request.return_value = mock_response
with patch('time.sleep'):
result = self.ibm.wait_until_rebooted('pvm-123', timeout=5, affected_node=None)
self.assertFalse(result)
def test_find_id_in_list(self):
"""Test finding ID in VPC list"""
vpc_list = [
{'vpc_name': 'vpc-1', 'vpc_id': 'id-1'},
{'vpc_name': 'vpc-2', 'vpc_id': 'id-2'}
]
vpc_id = self.ibm.find_id_in_list('vpc-2', vpc_list)
self.assertEqual(vpc_id, 'id-2')
def test_find_id_in_list_not_found(self):
"""Test finding ID in VPC list when not found"""
vpc_list = [
{'vpc_name': 'vpc-1', 'vpc_id': 'id-1'}
]
vpc_id = self.ibm.find_id_in_list('vpc-3', vpc_list)
self.assertIsNone(vpc_id)
class TestIbmCloudPowerNodeScenarios(unittest.TestCase):
"""Test cases for ibmcloud_power_node_scenarios class"""
def setUp(self):
"""Set up test fixtures"""
# Mock KrknKubernetes
self.mock_kubecli = MagicMock(spec=KrknKubernetes)
self.affected_nodes_status = AffectedNodeStatus()
# Mock the IbmCloudPower class entirely to avoid any real API calls
self.ibm_cloud_patcher = patch('krkn.scenario_plugins.node_actions.ibmcloud_power_node_scenarios.IbmCloudPower')
self.mock_ibm_cloud_class = self.ibm_cloud_patcher.start()
# Create a mock instance that will be returned when IbmCloudPower() is called
self.mock_ibm_cloud_instance = MagicMock()
self.mock_ibm_cloud_class.return_value = self.mock_ibm_cloud_instance
# Create ibmcloud_power_node_scenarios instance
self.scenario = ibmcloud_power_node_scenarios(
kubecli=self.mock_kubecli,
node_action_kube_check=True,
affected_nodes_status=self.affected_nodes_status,
disable_ssl_verification=False
)
def tearDown(self):
"""Clean up after tests"""
self.ibm_cloud_patcher.stop()
def test_init(self):
"""Test ibmcloud_power_node_scenarios initialization"""
self.assertIsNotNone(self.scenario.ibmcloud_power)
self.assertTrue(self.scenario.node_action_kube_check)
self.assertEqual(self.scenario.kubecli, self.mock_kubecli)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_start_scenario_success(self, mock_wait_ready):
"""Test node start scenario successfully"""
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'pvm-123'
self.mock_ibm_cloud_instance.start_instances.return_value = True
self.mock_ibm_cloud_instance.wait_until_running.return_value = True
self.scenario.node_start_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
self.assertEqual(self.affected_nodes_status.affected_nodes[0].node_name, 'test-node')
mock_wait_ready.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_start_scenario_no_kube_check(self, mock_wait_ready):
"""Test node start scenario without Kubernetes check"""
self.scenario.node_action_kube_check = False
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'pvm-123'
self.mock_ibm_cloud_instance.start_instances.return_value = True
self.mock_ibm_cloud_instance.wait_until_running.return_value = True
self.scenario.node_start_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
mock_wait_ready.assert_not_called()
def test_node_stop_scenario_success(self):
"""Test node stop scenario successfully"""
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'pvm-123'
self.mock_ibm_cloud_instance.stop_instances.return_value = True
self.mock_ibm_cloud_instance.wait_until_stopped.return_value = True
self.scenario.node_stop_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
# Verify methods were called
self.mock_ibm_cloud_instance.get_instance_id.assert_called_once_with('test-node')
self.mock_ibm_cloud_instance.stop_instances.assert_called_once_with('pvm-123')
# Note: affected_nodes are not appended in stop scenario based on the code
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_reboot_scenario_hard_reboot(self, mock_wait_ready, mock_wait_unknown):
"""Test node hard reboot scenario"""
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'pvm-123'
self.mock_ibm_cloud_instance.reboot_instances.return_value = True
self.mock_ibm_cloud_instance.wait_until_rebooted.return_value = True
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
soft_reboot=False
)
# Verify methods were called
self.mock_ibm_cloud_instance.reboot_instances.assert_called_once_with('pvm-123', False)
mock_wait_unknown.assert_called_once()
mock_wait_ready.assert_called_once()
# Note: affected_nodes are not appended in reboot scenario based on the code
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_reboot_scenario_soft_reboot(self, mock_wait_ready, mock_wait_unknown):
"""Test node soft reboot scenario"""
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'pvm-123'
self.mock_ibm_cloud_instance.reboot_instances.return_value = True
self.mock_ibm_cloud_instance.wait_until_rebooted.return_value = True
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
soft_reboot=True
)
# Verify methods were called
self.mock_ibm_cloud_instance.reboot_instances.assert_called_once_with('pvm-123', True)
mock_wait_unknown.assert_called_once()
mock_wait_ready.assert_called_once()
# Note: affected_nodes are not appended in reboot scenario based on the code
def test_node_terminate_scenario_success(self):
"""Test node terminate scenario successfully"""
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'pvm-123'
self.mock_ibm_cloud_instance.delete_instance.return_value = None
self.mock_ibm_cloud_instance.wait_until_deleted.return_value = True
self.scenario.node_terminate_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
# Verify methods were called
self.mock_ibm_cloud_instance.delete_instance.assert_called_once_with('pvm-123')
self.mock_ibm_cloud_instance.wait_until_deleted.assert_called_once()
# Note: affected_nodes are not appended in terminate scenario based on the code
def test_node_scenario_multiple_kill_count(self):
"""Test node scenario with multiple kill count"""
# Configure mock methods
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'pvm-123'
self.mock_ibm_cloud_instance.stop_instances.return_value = True
self.mock_ibm_cloud_instance.wait_until_stopped.return_value = True
self.scenario.node_stop_scenario(
instance_kill_count=2,
node='test-node',
timeout=60,
poll_interval=5
)
# Verify stop was called twice (kill_count=2)
self.assertEqual(self.mock_ibm_cloud_instance.stop_instances.call_count, 2)
# Note: affected_nodes are not appended in stop scenario based on the code
def test_node_start_scenario_exception(self):
"""Test node start scenario with exception during operation"""
# Configure mock - get_instance_id succeeds but start_instances fails
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'pvm-123'
self.mock_ibm_cloud_instance.start_instances.side_effect = Exception("API Error")
# Should handle exception gracefully
self.scenario.node_start_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
poll_interval=5
)
# Verify affected node still added even on failure
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
def test_node_reboot_scenario_exception(self):
"""Test node reboot scenario with exception during operation"""
# Configure mock - get_instance_id succeeds but reboot_instances fails
self.mock_ibm_cloud_instance.get_instance_id.return_value = 'pvm-123'
self.mock_ibm_cloud_instance.reboot_instances.side_effect = Exception("API Error")
# Should handle exception gracefully
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node='test-node',
timeout=60,
soft_reboot=False
)
if __name__ == '__main__':
unittest.main()

View File

@@ -1,726 +0,0 @@
import unittest
from unittest.mock import Mock, patch
from arcaflow_plugin_sdk import plugin
from krkn.scenario_plugins.native.network import ingress_shaping
class NetworkScenariosTest(unittest.TestCase):
def test_serialization(self):
"""Test serialization of configuration and output objects"""
plugin.test_object_serialization(
ingress_shaping.NetworkScenarioConfig(
node_interface_name={"foo": ["bar"]},
network_params={
"latency": "50ms",
"loss": "0.02",
"bandwidth": "100mbit",
},
),
self.fail,
)
plugin.test_object_serialization(
ingress_shaping.NetworkScenarioSuccessOutput(
filter_direction="ingress",
test_interfaces={"foo": ["bar"]},
network_parameters={
"latency": "50ms",
"loss": "0.02",
"bandwidth": "100mbit",
},
execution_type="parallel",
),
self.fail,
)
plugin.test_object_serialization(
ingress_shaping.NetworkScenarioErrorOutput(
error="Hello World",
),
self.fail,
)
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_get_default_interface(self, mock_kube_helper):
"""Test getting default interface from a node"""
# Setup mocks
mock_cli = Mock()
mock_pod_template = Mock()
mock_pod_template.render.return_value = "pod_yaml_content"
mock_kube_helper.create_pod.return_value = None
mock_kube_helper.exec_cmd_in_pod.return_value = (
"default via 192.168.1.1 dev eth0 proto dhcp metric 100\n"
"172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1"
)
mock_kube_helper.delete_pod.return_value = None
# Test
result = ingress_shaping.get_default_interface(
node="test-node",
pod_template=mock_pod_template,
cli=mock_cli,
image="quay.io/krkn-chaos/krkn:tools"
)
# Assertions
self.assertEqual(result, ["eth0"])
mock_kube_helper.create_pod.assert_called_once()
mock_kube_helper.exec_cmd_in_pod.assert_called_once()
mock_kube_helper.delete_pod.assert_called_once()
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_verify_interface_with_empty_list(self, mock_kube_helper):
"""Test verifying interface when input list is empty"""
# Setup mocks
mock_cli = Mock()
mock_pod_template = Mock()
mock_pod_template.render.return_value = "pod_yaml_content"
mock_kube_helper.create_pod.return_value = None
mock_kube_helper.exec_cmd_in_pod.return_value = (
"default via 192.168.1.1 dev eth0 proto dhcp metric 100\n"
)
mock_kube_helper.delete_pod.return_value = None
# Test
result = ingress_shaping.verify_interface(
input_interface_list=[],
node="test-node",
pod_template=mock_pod_template,
cli=mock_cli,
image="quay.io/krkn-chaos/krkn:tools"
)
# Assertions
self.assertEqual(result, ["eth0"])
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_verify_interface_with_valid_interfaces(self, mock_kube_helper):
"""Test verifying interface with valid interface list"""
# Setup mocks
mock_cli = Mock()
mock_pod_template = Mock()
mock_pod_template.render.return_value = "pod_yaml_content"
mock_kube_helper.create_pod.return_value = None
mock_kube_helper.exec_cmd_in_pod.return_value = (
"eth0 UP 192.168.1.10/24\n"
"eth1 UP 10.0.0.5/24\n"
"lo UNKNOWN 127.0.0.1/8\n"
)
mock_kube_helper.delete_pod.return_value = None
# Test
result = ingress_shaping.verify_interface(
input_interface_list=["eth0", "eth1"],
node="test-node",
pod_template=mock_pod_template,
cli=mock_cli,
image="quay.io/krkn-chaos/krkn:tools"
)
# Assertions
self.assertEqual(result, ["eth0", "eth1"])
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_verify_interface_with_invalid_interface(self, mock_kube_helper):
"""Test verifying interface with an interface that doesn't exist"""
# Setup mocks
mock_cli = Mock()
mock_pod_template = Mock()
mock_pod_template.render.return_value = "pod_yaml_content"
mock_kube_helper.create_pod.return_value = None
mock_kube_helper.exec_cmd_in_pod.return_value = (
"eth0 UP 192.168.1.10/24\n"
"lo UNKNOWN 127.0.0.1/8\n"
)
mock_kube_helper.delete_pod.return_value = None
# Test - should raise exception
with self.assertRaises(Exception) as context:
ingress_shaping.verify_interface(
input_interface_list=["eth0", "eth99"],
node="test-node",
pod_template=mock_pod_template,
cli=mock_cli,
image="quay.io/krkn-chaos/krkn:tools"
)
self.assertIn("Interface eth99 not found", str(context.exception))
@patch('krkn.scenario_plugins.native.network.ingress_shaping.get_default_interface')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_get_node_interfaces_with_label_selector(self, mock_kube_helper, mock_get_default_interface):
"""Test getting node interfaces using label selector"""
# Setup mocks
mock_cli = Mock()
mock_pod_template = Mock()
mock_kube_helper.get_node.return_value = ["node1", "node2"]
mock_get_default_interface.return_value = ["eth0"]
# Test
result = ingress_shaping.get_node_interfaces(
node_interface_dict=None,
label_selector="node-role.kubernetes.io/worker",
instance_count=2,
pod_template=mock_pod_template,
cli=mock_cli,
image="quay.io/krkn-chaos/krkn:tools"
)
# Assertions
self.assertEqual(result, {"node1": ["eth0"], "node2": ["eth0"]})
self.assertEqual(mock_get_default_interface.call_count, 2)
@patch('krkn.scenario_plugins.native.network.ingress_shaping.verify_interface')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_get_node_interfaces_with_node_dict(self, mock_kube_helper, mock_verify_interface):
"""Test getting node interfaces with provided node interface dictionary"""
# Setup mocks
mock_cli = Mock()
mock_pod_template = Mock()
mock_kube_helper.get_node.return_value = ["node1"]
mock_verify_interface.return_value = ["eth0", "eth1"]
# Test
result = ingress_shaping.get_node_interfaces(
node_interface_dict={"node1": ["eth0", "eth1"]},
label_selector=None,
instance_count=1,
pod_template=mock_pod_template,
cli=mock_cli,
image="quay.io/krkn-chaos/krkn:tools"
)
# Assertions
self.assertEqual(result, {"node1": ["eth0", "eth1"]})
mock_verify_interface.assert_called_once()
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_get_node_interfaces_no_selector_no_dict(self, mock_kube_helper):
"""Test that exception is raised when both node dict and label selector are missing"""
mock_cli = Mock()
mock_pod_template = Mock()
with self.assertRaises(Exception) as context:
ingress_shaping.get_node_interfaces(
node_interface_dict=None,
label_selector=None,
instance_count=1,
pod_template=mock_pod_template,
cli=mock_cli,
image="quay.io/krkn-chaos/krkn:tools"
)
self.assertIn("label selector must be provided", str(context.exception))
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_create_ifb(self, mock_kube_helper):
"""Test creating virtual interfaces"""
mock_cli = Mock()
mock_kube_helper.exec_cmd_in_pod.return_value = None
# Test
ingress_shaping.create_ifb(cli=mock_cli, number=2, pod_name="test-pod")
# Assertions
# Should call modprobe once and ip link set for each interface
self.assertEqual(mock_kube_helper.exec_cmd_in_pod.call_count, 3)
# Verify modprobe call
first_call = mock_kube_helper.exec_cmd_in_pod.call_args_list[0]
self.assertIn("modprobe", first_call[0][1])
self.assertIn("numifbs=2", first_call[0][1])
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_delete_ifb(self, mock_kube_helper):
"""Test deleting virtual interfaces"""
mock_cli = Mock()
mock_kube_helper.exec_cmd_in_pod.return_value = None
# Test
ingress_shaping.delete_ifb(cli=mock_cli, pod_name="test-pod")
# Assertions
mock_kube_helper.exec_cmd_in_pod.assert_called_once()
call_args = mock_kube_helper.exec_cmd_in_pod.call_args[0][1]
self.assertIn("modprobe", call_args)
self.assertIn("-r", call_args)
self.assertIn("ifb", call_args)
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_get_job_pods(self, mock_kube_helper):
"""Test getting pods associated with a job"""
mock_cli = Mock()
mock_api_response = Mock()
mock_api_response.metadata.labels = {"controller-uid": "test-uid-123"}
mock_kube_helper.list_pods.return_value = ["pod1", "pod2"]
# Test
result = ingress_shaping.get_job_pods(cli=mock_cli, api_response=mock_api_response)
# Assertions
self.assertEqual(result, "pod1")
mock_kube_helper.list_pods.assert_called_once_with(
mock_cli,
label_selector="controller-uid=test-uid-123",
namespace="default"
)
@patch('time.sleep', return_value=None)
@patch('time.time')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_wait_for_job_success(self, mock_kube_helper, mock_time, mock_sleep):
"""Test waiting for jobs to complete successfully"""
mock_batch_cli = Mock()
mock_time.side_effect = [0, 10, 20] # Simulate time progression
# First job succeeds
mock_response1 = Mock()
mock_response1.status.succeeded = 1
mock_response1.status.failed = None
# Second job succeeds
mock_response2 = Mock()
mock_response2.status.succeeded = 1
mock_response2.status.failed = None
mock_kube_helper.get_job_status.side_effect = [mock_response1, mock_response2]
# Test
ingress_shaping.wait_for_job(
batch_cli=mock_batch_cli,
job_list=["job1", "job2"],
timeout=300
)
# Assertions
self.assertEqual(mock_kube_helper.get_job_status.call_count, 2)
@patch('time.sleep', return_value=None)
@patch('time.time')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_wait_for_job_timeout(self, mock_kube_helper, mock_time, mock_sleep):
"""Test waiting for jobs times out"""
mock_batch_cli = Mock()
mock_time.side_effect = [0, 350] # Simulate timeout
mock_response = Mock()
mock_response.status.succeeded = None
mock_response.status.failed = None
mock_kube_helper.get_job_status.return_value = mock_response
# Test - should raise exception
with self.assertRaises(Exception) as context:
ingress_shaping.wait_for_job(
batch_cli=mock_batch_cli,
job_list=["job1"],
timeout=300
)
self.assertIn("timeout", str(context.exception))
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_delete_jobs(self, mock_kube_helper):
"""Test deleting jobs"""
mock_cli = Mock()
mock_batch_cli = Mock()
mock_response = Mock()
mock_response.status.failed = None
mock_kube_helper.get_job_status.return_value = mock_response
mock_kube_helper.delete_job.return_value = None
# Test
ingress_shaping.delete_jobs(
cli=mock_cli,
batch_cli=mock_batch_cli,
job_list=["job1", "job2"]
)
# Assertions
self.assertEqual(mock_kube_helper.get_job_status.call_count, 2)
self.assertEqual(mock_kube_helper.delete_job.call_count, 2)
@patch('krkn.scenario_plugins.native.network.ingress_shaping.get_job_pods')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_delete_jobs_with_failed_job(self, mock_kube_helper, mock_get_job_pods):
"""Test deleting jobs when one has failed"""
mock_cli = Mock()
mock_batch_cli = Mock()
mock_response = Mock()
mock_response.status.failed = 1
mock_pod_status = Mock()
mock_pod_status.status.container_statuses = []
mock_log_response = Mock()
mock_log_response.data.decode.return_value = "Error log content"
mock_kube_helper.get_job_status.return_value = mock_response
mock_get_job_pods.return_value = "failed-pod"
mock_kube_helper.read_pod.return_value = mock_pod_status
mock_kube_helper.get_pod_log.return_value = mock_log_response
mock_kube_helper.delete_job.return_value = None
# Test
ingress_shaping.delete_jobs(
cli=mock_cli,
batch_cli=mock_batch_cli,
job_list=["failed-job"]
)
# Assertions
mock_kube_helper.read_pod.assert_called_once()
mock_kube_helper.get_pod_log.assert_called_once()
def test_get_ingress_cmd_basic(self):
"""Test generating ingress traffic shaping commands"""
result = ingress_shaping.get_ingress_cmd(
interface_list=["eth0"],
network_parameters={"latency": "50ms"},
duration=120
)
# Assertions
self.assertIn("tc qdisc add dev eth0 handle ffff: ingress", result)
self.assertIn("tc filter add dev eth0", result)
self.assertIn("ifb0", result)
self.assertIn("delay 50ms", result)
self.assertIn("sleep 120", result)
self.assertIn("tc qdisc del", result)
def test_get_ingress_cmd_multiple_interfaces(self):
"""Test generating commands for multiple interfaces"""
result = ingress_shaping.get_ingress_cmd(
interface_list=["eth0", "eth1"],
network_parameters={"latency": "50ms", "bandwidth": "100mbit"},
duration=120
)
# Assertions
self.assertIn("eth0", result)
self.assertIn("eth1", result)
self.assertIn("ifb0", result)
self.assertIn("ifb1", result)
self.assertIn("delay 50ms", result)
self.assertIn("rate 100mbit", result)
def test_get_ingress_cmd_all_parameters(self):
"""Test generating commands with all network parameters"""
result = ingress_shaping.get_ingress_cmd(
interface_list=["eth0"],
network_parameters={
"latency": "50ms",
"loss": "0.02",
"bandwidth": "100mbit"
},
duration=120
)
# Assertions
self.assertIn("delay 50ms", result)
self.assertIn("loss 0.02", result)
self.assertIn("rate 100mbit", result)
def test_get_ingress_cmd_invalid_interface(self):
"""Test that invalid interface names raise an exception"""
with self.assertRaises(Exception) as context:
ingress_shaping.get_ingress_cmd(
interface_list=["eth0; rm -rf /"],
network_parameters={"latency": "50ms"},
duration=120
)
self.assertIn("does not match the required regex pattern", str(context.exception))
@patch('yaml.safe_load')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.create_virtual_interfaces')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.get_ingress_cmd')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_apply_ingress_filter(self, mock_kube_helper, mock_get_cmd, mock_create_virtual, mock_yaml):
"""Test applying ingress filters to a node"""
# Setup mocks
mock_cli = Mock()
mock_batch_cli = Mock()
mock_pod_template = Mock()
mock_job_template = Mock()
mock_job_template.render.return_value = "job_yaml"
mock_cfg = ingress_shaping.NetworkScenarioConfig(
node_interface_name={"node1": ["eth0"]},
network_params={"latency": "50ms"},
test_duration=120
)
mock_yaml.return_value = {"metadata": {"name": "test-job"}}
mock_get_cmd.return_value = "tc commands"
mock_kube_helper.create_job.return_value = Mock()
# Test
result = ingress_shaping.apply_ingress_filter(
cfg=mock_cfg,
interface_list=["eth0"],
node="node1",
pod_template=mock_pod_template,
job_template=mock_job_template,
batch_cli=mock_batch_cli,
cli=mock_cli,
create_interfaces=True,
param_selector="all",
image="quay.io/krkn-chaos/krkn:tools"
)
# Assertions
mock_create_virtual.assert_called_once()
mock_get_cmd.assert_called_once()
mock_kube_helper.create_job.assert_called_once()
self.assertEqual(result, "test-job")
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_create_virtual_interfaces(self, mock_kube_helper):
"""Test creating virtual interfaces on a node"""
mock_cli = Mock()
mock_pod_template = Mock()
mock_pod_template.render.return_value = "pod_yaml"
mock_kube_helper.create_pod.return_value = None
mock_kube_helper.exec_cmd_in_pod.return_value = None
mock_kube_helper.delete_pod.return_value = None
# Test
ingress_shaping.create_virtual_interfaces(
cli=mock_cli,
interface_list=["eth0", "eth1"],
node="test-node",
pod_template=mock_pod_template,
image="quay.io/krkn-chaos/krkn:tools"
)
# Assertions
mock_kube_helper.create_pod.assert_called_once()
mock_kube_helper.delete_pod.assert_called_once()
@patch('krkn.scenario_plugins.native.network.ingress_shaping.delete_ifb')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_delete_virtual_interfaces(self, mock_kube_helper, mock_delete_ifb):
"""Test deleting virtual interfaces from nodes"""
mock_cli = Mock()
mock_pod_template = Mock()
mock_pod_template.render.return_value = "pod_yaml"
mock_kube_helper.create_pod.return_value = None
mock_kube_helper.delete_pod.return_value = None
# Test
ingress_shaping.delete_virtual_interfaces(
cli=mock_cli,
node_list=["node1", "node2"],
pod_template=mock_pod_template,
image="quay.io/krkn-chaos/krkn:tools"
)
# Assertions
self.assertEqual(mock_kube_helper.create_pod.call_count, 2)
self.assertEqual(mock_delete_ifb.call_count, 2)
self.assertEqual(mock_kube_helper.delete_pod.call_count, 2)
@patch('krkn.scenario_plugins.native.network.ingress_shaping.Environment')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.FileSystemLoader')
@patch('yaml.safe_load')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.delete_jobs')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.delete_virtual_interfaces')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.wait_for_job')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.apply_ingress_filter')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.get_node_interfaces')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_network_chaos_parallel_execution(
self, mock_kube_helper, mock_get_nodes, mock_apply_filter,
mock_wait_job, mock_delete_virtual, mock_delete_jobs, mock_yaml,
mock_file_loader, mock_env
):
"""Test network chaos with parallel execution"""
# Setup mocks
mock_cli = Mock()
mock_batch_cli = Mock()
mock_yaml.return_value = {"metadata": {"name": "test-pod"}}
mock_kube_helper.setup_kubernetes.return_value = (mock_cli, mock_batch_cli)
mock_get_nodes.return_value = {"node1": ["eth0"], "node2": ["eth1"]}
mock_apply_filter.side_effect = ["job1", "job2"]
# Test
cfg = ingress_shaping.NetworkScenarioConfig(
label_selector="node-role.kubernetes.io/worker",
instance_count=2,
network_params={"latency": "50ms"},
execution_type="parallel",
test_duration=120,
wait_duration=30
)
output_id, output_data = ingress_shaping.network_chaos(params=cfg, run_id="test-run")
# Assertions
self.assertEqual(output_id, "success")
self.assertEqual(output_data.filter_direction, "ingress")
self.assertEqual(output_data.execution_type, "parallel")
self.assertEqual(mock_apply_filter.call_count, 2)
mock_wait_job.assert_called_once()
mock_delete_virtual.assert_called_once()
@patch('krkn.scenario_plugins.native.network.ingress_shaping.Environment')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.FileSystemLoader')
@patch('yaml.safe_load')
@patch('time.sleep', return_value=None)
@patch('krkn.scenario_plugins.native.network.ingress_shaping.delete_jobs')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.delete_virtual_interfaces')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.wait_for_job')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.apply_ingress_filter')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.get_node_interfaces')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_network_chaos_serial_execution(
self, mock_kube_helper, mock_get_nodes, mock_apply_filter,
mock_wait_job, mock_delete_virtual, mock_delete_jobs, mock_sleep, mock_yaml,
mock_file_loader, mock_env
):
"""Test network chaos with serial execution"""
# Setup mocks
mock_cli = Mock()
mock_batch_cli = Mock()
mock_yaml.return_value = {"metadata": {"name": "test-pod"}}
mock_kube_helper.setup_kubernetes.return_value = (mock_cli, mock_batch_cli)
mock_get_nodes.return_value = {"node1": ["eth0"]}
mock_apply_filter.return_value = "job1"
# Test
cfg = ingress_shaping.NetworkScenarioConfig(
label_selector="node-role.kubernetes.io/worker",
instance_count=1,
network_params={"latency": "50ms", "bandwidth": "100mbit"},
execution_type="serial",
test_duration=120,
wait_duration=30
)
output_id, output_data = ingress_shaping.network_chaos(params=cfg, run_id="test-run")
# Assertions
self.assertEqual(output_id, "success")
self.assertEqual(output_data.execution_type, "serial")
# Should be called once per parameter per node
self.assertEqual(mock_apply_filter.call_count, 2)
# Should wait for jobs twice (once per parameter)
self.assertEqual(mock_wait_job.call_count, 2)
@patch('krkn.scenario_plugins.native.network.ingress_shaping.Environment')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.FileSystemLoader')
@patch('yaml.safe_load')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.delete_jobs')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.delete_virtual_interfaces')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.get_node_interfaces')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_network_chaos_invalid_execution_type(
self, mock_kube_helper, mock_get_nodes, mock_delete_virtual, mock_delete_jobs, mock_yaml,
mock_file_loader, mock_env
):
"""Test network chaos with invalid execution type"""
# Setup mocks
mock_cli = Mock()
mock_batch_cli = Mock()
mock_yaml.return_value = {"metadata": {"name": "test-pod"}}
mock_kube_helper.setup_kubernetes.return_value = (mock_cli, mock_batch_cli)
mock_get_nodes.return_value = {"node1": ["eth0"]}
# Test
cfg = ingress_shaping.NetworkScenarioConfig(
label_selector="node-role.kubernetes.io/worker",
instance_count=1,
network_params={"latency": "50ms"},
execution_type="invalid_type",
test_duration=120
)
output_id, output_data = ingress_shaping.network_chaos(params=cfg, run_id="test-run")
# Assertions
self.assertEqual(output_id, "error")
self.assertIn("Invalid execution type", output_data.error)
@patch('krkn.scenario_plugins.native.network.ingress_shaping.Environment')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.FileSystemLoader')
@patch('yaml.safe_load')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.delete_jobs')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.delete_virtual_interfaces')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.get_node_interfaces')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_network_chaos_get_nodes_error(
self, mock_kube_helper, mock_get_nodes, mock_delete_virtual, mock_delete_jobs, mock_yaml,
mock_file_loader, mock_env
):
"""Test network chaos when getting nodes fails"""
# Setup mocks
mock_cli = Mock()
mock_batch_cli = Mock()
mock_yaml.return_value = {"metadata": {"name": "test-pod"}}
mock_kube_helper.setup_kubernetes.return_value = (mock_cli, mock_batch_cli)
mock_get_nodes.side_effect = Exception("Failed to get nodes")
# Test
cfg = ingress_shaping.NetworkScenarioConfig(
label_selector="node-role.kubernetes.io/worker",
instance_count=1,
network_params={"latency": "50ms"}
)
output_id, output_data = ingress_shaping.network_chaos(params=cfg, run_id="test-run")
# Assertions
self.assertEqual(output_id, "error")
self.assertIn("Failed to get nodes", output_data.error)
@patch('krkn.scenario_plugins.native.network.ingress_shaping.Environment')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.FileSystemLoader')
@patch('yaml.safe_load')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.delete_jobs')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.delete_virtual_interfaces')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.apply_ingress_filter')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.get_node_interfaces')
@patch('krkn.scenario_plugins.native.network.ingress_shaping.kube_helper')
def test_network_chaos_apply_filter_error(
self, mock_kube_helper, mock_get_nodes, mock_apply_filter,
mock_delete_virtual, mock_delete_jobs, mock_yaml,
mock_file_loader, mock_env
):
"""Test network chaos when applying filter fails"""
# Setup mocks
mock_cli = Mock()
mock_batch_cli = Mock()
mock_yaml.return_value = {"metadata": {"name": "test-pod"}}
mock_kube_helper.setup_kubernetes.return_value = (mock_cli, mock_batch_cli)
mock_get_nodes.return_value = {"node1": ["eth0"]}
mock_apply_filter.side_effect = Exception("Failed to apply filter")
# Test
cfg = ingress_shaping.NetworkScenarioConfig(
label_selector="node-role.kubernetes.io/worker",
instance_count=1,
network_params={"latency": "50ms"},
execution_type="parallel"
)
output_id, output_data = ingress_shaping.network_chaos(params=cfg, run_id="test-run")
# Assertions
self.assertEqual(output_id, "error")
self.assertIn("Failed to apply filter", output_data.error)
# Cleanup should still be called
mock_delete_virtual.assert_called_once()
if __name__ == "__main__":
unittest.main()

View File

@@ -1,27 +1,11 @@
#!/usr/bin/env python3
"""
Test suite for KubeVirt VM Outage Scenario Plugin
Test suite for KubeVirt VM Outage Scenario Plugin class
This comprehensive test suite covers the KubevirtVmOutageScenarioPlugin class
using extensive mocks to avoid needing actual Kubernetes/KubeVirt infrastructure.
Test Coverage:
- Core scenario flows: injection, recovery, deletion, waiting
- Edge cases: timeouts, missing parameters, validation failures
- API exceptions: 404, 500, and general exceptions
- Helper methods: get_vmi, get_vmis, patch_vm_spec, validate_environment
- Multiple VMI scenarios with kill_count
- Auto-restart disable functionality
IMPORTANT: These tests use comprehensive mocking and do NOT require any Kubernetes
cluster or KubeVirt installation. All API calls are mocked.
Note: This test file uses mocks extensively to avoid needing actual Kubernetes/KubeVirt infrastructure.
Usage:
# Run all tests
python -m unittest tests.test_kubevirt_vm_outage -v
# Run with coverage
python -m coverage run -a -m unittest tests/test_kubevirt_vm_outage.py -v
Assisted By: Claude Code
@@ -32,7 +16,6 @@ import itertools
import os
import tempfile
import unittest
from datetime import datetime, timedelta, timezone
from unittest.mock import MagicMock, patch
import yaml
@@ -44,9 +27,8 @@ from kubernetes.client.rest import ApiException
from krkn.scenario_plugins.kubevirt_vm_outage.kubevirt_vm_outage_scenario_plugin import KubevirtVmOutageScenarioPlugin
class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
def setUp(self):
"""
Set up test fixtures for KubevirtVmOutageScenarioPlugin
@@ -70,32 +52,18 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
crd_item.spec.group = "kubevirt.io"
crd_list.items = [crd_item]
self.k8s_client.list_custom_resource_definition.return_value = crd_list
# Mock VMI data with timezone-aware timestamps
base_time = datetime.now(timezone.utc)
# Mock VMI data
self.mock_vmi = {
"metadata": {
"name": "test-vm",
"namespace": "default",
"creationTimestamp": base_time.isoformat() + "Z"
"namespace": "default"
},
"status": {
"phase": "Running"
}
}
# Mock VMI with new creation timestamp (after recreation)
self.mock_vmi_recreated = {
"metadata": {
"name": "test-vm",
"namespace": "default",
"creationTimestamp": (base_time + timedelta(minutes=1)).isoformat() + "Z"
},
"status": {
"phase": "Running"
}
}
# Create test config
self.config = {
"scenarios": [
@@ -105,18 +73,18 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
"parameters": {
"vm_name": "test-vm",
"namespace": "default",
"duration": 0
"duration": 0
}
}
]
}
# Create a temporary config file
temp_dir = tempfile.gettempdir()
self.scenario_file = os.path.join(temp_dir, "test_kubevirt_scenario.yaml")
with open(self.scenario_file, "w") as f:
yaml.dump(self.config, f)
# Mock dependencies
self.telemetry = MagicMock(spec=KrknTelemetryOpenshift)
self.scenario_telemetry = MagicMock(spec=ScenarioTelemetry)
@@ -126,152 +94,63 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
self.delete_count = 0
self.wait_count = 0
def create_incrementing_time_function(self):
"""
Create an incrementing time function that returns sequential float values.
Returns a callable that can be used with patch('time.time', side_effect=...)
"""
counter = itertools.count(1)
def mock_time():
return float(next(counter))
return mock_time
def mock_delete(self, *args, **kwargs):
"""Reusable mock for delete_vmi that tracks calls and sets up affected_pod"""
self.delete_count += 1
self.plugin.affected_pod = AffectedPod(pod_name=f"test-vm-{self.delete_count}", namespace="default")
self.plugin.affected_pod.pod_rescheduling_time = 5.0
return 0
def mock_wait(self, *args, **kwargs):
"""Reusable mock for wait_for_running that tracks calls and sets pod_readiness_time"""
self.wait_count += 1
self.plugin.affected_pod.pod_readiness_time = 3.0
return 0
# ==================== Core Scenario Tests ====================
def test_successful_injection_and_recovery(self):
"""
Test successful deletion and recovery of a VMI using detailed mocking
Test successful deletion and recovery of a VMI
"""
# Mock list_namespaces_by_regex to return a single namespace
self.k8s_client.list_namespaces_by_regex = MagicMock(return_value=["default"])
# Populate vmis_list to avoid randrange error
self.plugin.vmis_list = [self.mock_vmi]
# Mock list_namespaced_custom_object to return our VMI
self.custom_object_client.list_namespaced_custom_object = MagicMock(
side_effect=[
{"items": [self.mock_vmi]}, # For get_vmis
{"items": [{"metadata": {"name": "test-vm"}}]}, # For validate_environment
]
)
# Mock get_namespaced_custom_object with a sequence that handles multiple calls
# Call sequence:
# 1. validate_environment: get original VMI
# 2. execute_scenario: get VMI before deletion
# 3. delete_vmi: loop checking if timestamp changed (returns recreated VMI on first check)
# 4+. wait_for_running: loop until phase is Running (may call multiple times)
get_vmi_responses = [
self.mock_vmi, # Initial get in validate_environment
self.mock_vmi, # Get before delete
self.mock_vmi_recreated, # After delete (recreated with new timestamp)
self.mock_vmi_recreated, # Check if running
]
class GetVmiSideEffect:
"""
Callable helper that returns a predefined sequence of VMIs.
If called more times than there are responses, it fails the test
to surface unexpected additional calls instead of silently
masking them.
"""
def __init__(self, responses):
self._responses = responses
self._call_iter = itertools.count()
self.call_count = 0
def __call__(self, *args, **kwargs):
call_num = next(self._call_iter)
self.call_count = call_num + 1
if call_num >= len(self._responses):
raise AssertionError(
f"get_vmi_side_effect called more times ({call_num + 1}) "
f"than expected ({len(self._responses)})."
)
return self._responses[call_num]
get_vmi_side_effect = GetVmiSideEffect(get_vmi_responses)
self.custom_object_client.get_namespaced_custom_object = MagicMock(
side_effect=get_vmi_side_effect
)
# Mock delete operation
self.custom_object_client.delete_namespaced_custom_object = MagicMock(return_value={})
with patch('time.time', side_effect=self.create_incrementing_time_function()), patch('time.sleep'):
with patch("builtins.open", unittest.mock.mock_open(read_data=yaml.dump(self.config))):
result = self.plugin.run("test-uuid", self.scenario_file, {}, self.telemetry, self.scenario_telemetry)
# Mock get_vmis to not clear the list
with patch.object(self.plugin, 'get_vmis'):
# Mock get_vmi to return our mock VMI
with patch.object(self.plugin, 'get_vmi', return_value=self.mock_vmi):
# Mock validate_environment to return True
with patch.object(self.plugin, 'validate_environment', return_value=True):
# Mock delete_vmi and wait_for_running to simulate success
with patch.object(self.plugin, 'delete_vmi', side_effect=self.mock_delete) as mock_delete:
with patch.object(self.plugin, 'wait_for_running', side_effect=self.mock_wait) as mock_wait:
with patch("builtins.open", unittest.mock.mock_open(read_data=yaml.dump(self.config))):
result = self.plugin.run("test-uuid", self.scenario_file, {}, self.telemetry, self.scenario_telemetry)
self.assertEqual(result, 0)
# Verify get_namespaced_custom_object was called exactly as many times as
# there are predefined responses
self.assertEqual(
self.custom_object_client.get_namespaced_custom_object.call_count,
len(get_vmi_responses),
)
# Verify that the VMI delete operation was performed once with expected parameters
self.custom_object_client.delete_namespaced_custom_object.assert_called_once_with(
group="kubevirt.io",
version="v1",
namespace="default",
plural="virtualmachineinstances",
name="test-vm",
)
mock_delete.assert_called_once_with("test-vm", "default", False)
mock_wait.assert_called_once_with("test-vm", "default", 60)
def test_injection_failure(self):
"""
Test failure during VMI deletion
"""
# Mock list_namespaces_by_regex
self.k8s_client.list_namespaces_by_regex = MagicMock(return_value=["default"])
# Populate vmis_list to avoid randrange error
self.plugin.vmis_list = [self.mock_vmi]
# Mock list to return VMI
self.custom_object_client.list_namespaced_custom_object = MagicMock(
side_effect=[
{"items": [self.mock_vmi]}, # For get_vmis
{"items": [{"metadata": {"name": "test-vm"}}]}, # For validate_environment
]
)
# Mock get_vmi
self.custom_object_client.get_namespaced_custom_object = MagicMock(
side_effect=[
self.mock_vmi, # validate_environment
self.mock_vmi, # get before delete
]
)
# Mock delete to raise an error
self.custom_object_client.delete_namespaced_custom_object = MagicMock(
side_effect=ApiException(status=500, reason="Internal Server Error")
)
with patch("builtins.open", unittest.mock.mock_open(read_data=yaml.dump(self.config))):
result = self.plugin.run("test-uuid", self.scenario_file, {}, self.telemetry, self.scenario_telemetry)
self.assertEqual(result, 1)
# Verify delete was attempted before the error occurred
self.custom_object_client.delete_namespaced_custom_object.assert_called_once_with(
group="kubevirt.io",
version="v1",
namespace="default",
plural="virtualmachineinstances",
name="test-vm"
)
# Mock get_vmis to not clear the list
with patch.object(self.plugin, 'get_vmis'):
# Mock get_vmi to return our mock VMI
with patch.object(self.plugin, 'get_vmi', return_value=self.mock_vmi):
# Mock validate_environment to return True
with patch.object(self.plugin, 'validate_environment', return_value=True):
# Mock delete_vmi to simulate failure
with patch.object(self.plugin, 'delete_vmi', return_value=1) as mock_delete:
with patch.object(self.plugin, 'wait_for_running', return_value=0) as mock_wait:
with patch("builtins.open", unittest.mock.mock_open(read_data=yaml.dump(self.config))):
result = self.plugin.run("test-uuid", self.scenario_file, {}, self.telemetry, self.scenario_telemetry)
self.assertEqual(result, 0)
mock_delete.assert_called_once_with("test-vm", "default", False)
mock_wait.assert_not_called()
def test_disable_auto_restart(self):
"""
Test VM auto-restart can be disabled
@@ -279,92 +158,66 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
# Configure test with disable_auto_restart=True
self.config["scenarios"][0]["parameters"]["disable_auto_restart"] = True
# Mock list_namespaces_by_regex
self.k8s_client.list_namespaces_by_regex = MagicMock(return_value=["default"])
# Populate vmis_list to avoid randrange error
self.plugin.vmis_list = [self.mock_vmi]
# Mock VM object for patching
mock_vm = {
"metadata": {"name": "test-vm", "namespace": "default"},
"spec": {"running": True}
}
# Mock list to return VMI
self.custom_object_client.list_namespaced_custom_object = MagicMock(
side_effect=[
{"items": [self.mock_vmi]}, # For get_vmis
{"items": [{"metadata": {"name": "test-vm"}}]}, # For validate_environment
]
)
# Mock get_namespaced_custom_object with detailed call sequence
# Call sequence:
# 1. execute_scenario: get VMI before deletion
# 2. patch_vm_spec: get VM for patching
# 3. delete_vmi: loop checking if VMI timestamp changed
# 4+. wait_for_running: loop until VMI phase is Running
self.custom_object_client.get_namespaced_custom_object = MagicMock(
side_effect=[
self.mock_vmi, # Call 1: get VMI before delete
mock_vm, # Call 2: get VM for patching (different resource type)
self.mock_vmi_recreated, # Call 3: delete_vmi detects new timestamp
self.mock_vmi_recreated, # Call 4: wait_for_running checks phase
]
)
# Mock patch and delete operations
self.custom_object_client.patch_namespaced_custom_object = MagicMock(return_value=mock_vm)
self.custom_object_client.delete_namespaced_custom_object = MagicMock(return_value={})
with patch('time.time', side_effect=self.create_incrementing_time_function()), patch('time.sleep'):
with patch("builtins.open", unittest.mock.mock_open(read_data=yaml.dump(self.config))):
result = self.plugin.run("test-uuid", self.scenario_file, {}, self.telemetry, self.scenario_telemetry)
# Mock get_vmis to not clear the list
with patch.object(self.plugin, 'get_vmis'):
# Mock get_vmi to return our mock VMI
with patch.object(self.plugin, 'get_vmi', return_value=self.mock_vmi):
# Mock validate_environment to return True
with patch.object(self.plugin, 'validate_environment', return_value=True):
# Mock delete_vmi and wait_for_running
with patch.object(self.plugin, 'delete_vmi', side_effect=self.mock_delete) as mock_delete:
with patch.object(self.plugin, 'wait_for_running', side_effect=self.mock_wait) as mock_wait:
with patch("builtins.open", unittest.mock.mock_open(read_data=yaml.dump(self.config))):
result = self.plugin.run("test-uuid", self.scenario_file, {}, self.telemetry, self.scenario_telemetry)
self.assertEqual(result, 0)
# Verify patch was called to disable auto-restart
self.custom_object_client.patch_namespaced_custom_object.assert_called()
# delete_vmi should be called with disable_auto_restart=True
mock_delete.assert_called_once_with("test-vm", "default", True)
mock_wait.assert_called_once_with("test-vm", "default", 60)
def test_recovery_when_vmi_does_not_exist(self):
"""
Test recovery logic when VMI does not exist after deletion
"""
# Initialize the plugin's custom_object_client
self.plugin.custom_object_client = self.custom_object_client
# Store the original VMI in the plugin for recovery
self.plugin.original_vmi = self.mock_vmi.copy()
# Initialize affected_pod which is used by wait_for_running
self.plugin.affected_pod = AffectedPod(pod_name="test-vm", namespace="default")
# Create a cleaned vmi_dict as the plugin would
vmi_dict = self.mock_vmi.copy()
# Set up running VMI data for after recovery
running_vmi = {
"metadata": {
"name": "test-vm",
"namespace": "default",
"creationTimestamp": (datetime.now(timezone.utc) + timedelta(minutes=2)).isoformat() + "Z"
},
"metadata": {"name": "test-vm", "namespace": "default"},
"status": {"phase": "Running"}
}
# Mock get_namespaced_custom_object call sequence triggered during recovery
# Call sequence:
# 1. wait_for_running: first loop iteration - VMI creation requested but not visible yet
# 2. wait_for_running: subsequent iterations - VMI exists and is running
self.custom_object_client.get_namespaced_custom_object = MagicMock(
side_effect=[
ApiException(status=404, reason="Not Found"), # VMI not visible yet after create
running_vmi, # VMI now exists and is running
]
)
# Set up time.time to immediately exceed the timeout for auto-recovery
with patch('time.time', side_effect=[0, 301, 301, 301, 301, 310, 320]):
# Mock get_vmi to always return None (not auto-recovered)
with patch.object(self.plugin, 'get_vmi', side_effect=[None, None, running_vmi]):
# Mock the custom object API to return success
self.custom_object_client.create_namespaced_custom_object = MagicMock(return_value=running_vmi)
# Mock the create API to return success
self.custom_object_client.create_namespaced_custom_object = MagicMock(return_value=running_vmi)
# Run recovery with mocked time
with patch('time.time', side_effect=self.create_incrementing_time_function()), patch('time.sleep'):
result = self.plugin.recover("test-vm", "default", False)
# Run recovery with mocked time.sleep
with patch('time.sleep'):
result = self.plugin.recover("test-vm", "default", False)
self.assertEqual(result, 0)
# Verify create was called with the right arguments
self.custom_object_client.create_namespaced_custom_object.assert_called_once()
# Verify create was called with the right arguments for our API version and kind
self.custom_object_client.create_namespaced_custom_object.assert_called_once_with(
group="kubevirt.io",
version="v1",
namespace="default",
plural="virtualmachineinstances",
body=vmi_dict
)
def test_validation_failure(self):
"""
Test validation failure when KubeVirt is not installed
@@ -383,32 +236,34 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
# When validation fails, run() returns 1 due to exception handling
self.assertEqual(result, 1)
# ==================== Timeout Tests ====================
def test_delete_vmi_timeout(self):
"""
Test timeout during VMI deletion
"""
# Store original VMI
self.plugin.original_vmi = self.mock_vmi
# Initialize the plugin's custom_object_client and required attributes
self.plugin.custom_object_client = self.custom_object_client
# Initialize required attributes
self.plugin.affected_pod = AffectedPod(pod_name="test-vm", namespace="default")
# Initialize original_vmi which is required by delete_vmi
self.plugin.original_vmi = self.mock_vmi.copy()
self.plugin.original_vmi['metadata']['creationTimestamp'] = '2023-01-01T00:00:00Z'
# Initialize pods_status which delete_vmi needs
from krkn_lib.models.k8s import PodsStatus, AffectedPod
self.plugin.pods_status = PodsStatus()
self.plugin.affected_pod = AffectedPod(pod_name="test-vm", namespace="default")
# Mock successful delete operation
self.custom_object_client.delete_namespaced_custom_object = MagicMock(return_value={})
# Mock get_vmi to always return the same VMI with unchanged creationTimestamp
# This simulates that the VMI has NOT been recreated after deletion
self.custom_object_client.get_namespaced_custom_object = MagicMock(
return_value=self.mock_vmi
)
# Mock that get_vmi always returns VMI with same creationTimestamp (never gets recreated)
mock_vmi_with_time = self.mock_vmi.copy()
mock_vmi_with_time['metadata']['creationTimestamp'] = '2023-01-01T00:00:00Z'
# Simulate timeout by making time.time return values that exceed the timeout
with patch('time.sleep'), patch('time.time', side_effect=[0, 10, 20, 130, 140]):
result = self.plugin.delete_vmi("test-vm", "default", False, timeout=120)
with patch.object(self.plugin, 'get_vmi', return_value=mock_vmi_with_time):
# Simulate timeout by making time.time return values that exceed the timeout
with patch('time.sleep'), patch('time.time', side_effect=[0, 10, 20, 130, 130, 130, 130, 140]):
result = self.plugin.delete_vmi("test-vm", "default", False)
self.assertEqual(result, 1)
self.custom_object_client.delete_namespaced_custom_object.assert_called_once_with(
@@ -419,29 +274,12 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
name="test-vm"
)
def test_wait_for_running_timeout(self):
"""
Test wait_for_running times out when VMI doesn't reach Running state
"""
self.plugin.affected_pod = AffectedPod(pod_name="test-vm", namespace="default")
# Mock VMI in Pending state
pending_vmi = self.mock_vmi.copy()
pending_vmi['status']['phase'] = 'Pending'
with patch.object(self.plugin, 'get_vmi', return_value=pending_vmi):
with patch('time.sleep'):
with patch('time.time', side_effect=[0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 121]):
result = self.plugin.wait_for_running("test-vm", "default", 120)
self.assertEqual(result, 1)
# ==================== API Exception Tests ====================
def test_get_vmi_api_exception_non_404(self):
"""
Test get_vmi raises ApiException for non-404 errors
"""
# Mock API exception with non-404 status
api_error = ApiException(status=500, reason="Internal Server Error")
self.custom_object_client.get_namespaced_custom_object = MagicMock(side_effect=api_error)
@@ -461,10 +299,37 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
with self.assertRaises(Exception):
self.plugin.get_vmi("test-vm", "default")
def test_get_vmis_with_regex_matching(self):
"""
Test get_vmis successfully filters VMIs by regex pattern
"""
# Mock namespace list
self.k8s_client.list_namespaces_by_regex = MagicMock(return_value=["default", "test-ns"])
# Mock VMI list with multiple VMIs
vmi_list = {
"items": [
{"metadata": {"name": "test-vm-1"}, "status": {"phase": "Running"}},
{"metadata": {"name": "test-vm-2"}, "status": {"phase": "Running"}},
{"metadata": {"name": "other-vm"}, "status": {"phase": "Running"}},
]
}
self.custom_object_client.list_namespaced_custom_object = MagicMock(return_value=vmi_list)
# Test with regex pattern that matches test-vm-*
self.plugin.get_vmis("test-vm-.*", "default")
# Should have 4 VMs (2 per namespace * 2 namespaces)
self.assertEqual(len(self.plugin.vmis_list), 4)
# Verify only test-vm-* were added
for vmi in self.plugin.vmis_list:
self.assertTrue(vmi["metadata"]["name"].startswith("test-vm-"))
def test_get_vmis_api_exception_404(self):
"""
Test get_vmis handles 404 ApiException gracefully
"""
self.k8s_client.list_namespaces_by_regex = MagicMock(return_value=["default"])
api_error = ApiException(status=404, reason="Not Found")
self.custom_object_client.list_namespaced_custom_object = MagicMock(side_effect=api_error)
@@ -477,6 +342,7 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
"""
Test get_vmis raises ApiException for non-404 errors
"""
self.k8s_client.list_namespaces_by_regex = MagicMock(return_value=["default"])
api_error = ApiException(status=500, reason="Internal Server Error")
self.custom_object_client.list_namespaced_custom_object = MagicMock(side_effect=api_error)
@@ -484,10 +350,52 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
with self.assertRaises(ApiException):
self.plugin.get_vmis("test-vm", "default")
def test_patch_vm_spec_success(self):
"""
Test patch_vm_spec successfully patches VM
"""
mock_vm = {
"metadata": {"name": "test-vm", "namespace": "default"},
"spec": {"running": True}
}
self.custom_object_client.get_namespaced_custom_object = MagicMock(return_value=mock_vm)
self.custom_object_client.patch_namespaced_custom_object = MagicMock(return_value=mock_vm)
result = self.plugin.patch_vm_spec("test-vm", "default", False)
self.assertTrue(result)
self.custom_object_client.patch_namespaced_custom_object.assert_called_once()
def test_patch_vm_spec_api_exception(self):
"""
Test patch_vm_spec handles ApiException
"""
api_error = ApiException(status=404, reason="Not Found")
self.custom_object_client.get_namespaced_custom_object = MagicMock(side_effect=api_error)
result = self.plugin.patch_vm_spec("test-vm", "default", False)
self.assertFalse(result)
def test_patch_vm_spec_general_exception(self):
"""
Test patch_vm_spec handles general exceptions
"""
self.custom_object_client.get_namespaced_custom_object = MagicMock(
side_effect=Exception("Connection error")
)
result = self.plugin.patch_vm_spec("test-vm", "default", False)
self.assertFalse(result)
def test_delete_vmi_api_exception_404(self):
"""
Test delete_vmi handles 404 ApiException during deletion
"""
# Initialize required attributes
self.plugin.original_vmi = self.mock_vmi.copy()
self.plugin.original_vmi['metadata']['creationTimestamp'] = '2023-01-01T00:00:00Z'
@@ -518,103 +426,6 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
self.assertEqual(result, 1)
def test_patch_vm_spec_api_exception(self):
"""
Test patch_vm_spec handles ApiException
"""
api_error = ApiException(status=404, reason="Not Found")
self.custom_object_client.get_namespaced_custom_object = MagicMock(side_effect=api_error)
result = self.plugin.patch_vm_spec("test-vm", "default", False)
self.assertFalse(result)
def test_patch_vm_spec_general_exception(self):
"""
Test patch_vm_spec handles general exceptions
"""
self.custom_object_client.get_namespaced_custom_object = MagicMock(
side_effect=Exception("Connection error")
)
result = self.plugin.patch_vm_spec("test-vm", "default", False)
self.assertFalse(result)
# ==================== Helper Method Tests ====================
def test_get_vmis_with_regex_matching(self):
"""
Test get_vmis successfully filters VMIs by regex pattern
"""
# Mock namespace list
self.k8s_client.list_namespaces_by_regex = MagicMock(return_value=["default", "test-ns"])
# Mock VMI list with multiple VMIs
vmi_list = {
"items": [
{"metadata": {"name": "test-vm-1"}, "status": {"phase": "Running"}},
{"metadata": {"name": "test-vm-2"}, "status": {"phase": "Running"}},
{"metadata": {"name": "other-vm"}, "status": {"phase": "Running"}},
]
}
self.custom_object_client.list_namespaced_custom_object = MagicMock(return_value=vmi_list)
# Test with regex pattern that matches test-vm-*
self.plugin.get_vmis("test-vm-.*", "default")
# Should have 4 VMs (2 per namespace * 2 namespaces)
self.assertEqual(len(self.plugin.vmis_list), 4)
# Verify only test-vm-* were added
for vmi in self.plugin.vmis_list:
self.assertTrue(vmi["metadata"]["name"].startswith("test-vm-"))
def test_patch_vm_spec_success(self):
"""
Test patch_vm_spec successfully patches VM
"""
mock_vm = {
"metadata": {"name": "test-vm", "namespace": "default"},
"spec": {"running": True}
}
self.custom_object_client.get_namespaced_custom_object = MagicMock(return_value=mock_vm)
self.custom_object_client.patch_namespaced_custom_object = MagicMock(return_value=mock_vm)
result = self.plugin.patch_vm_spec("test-vm", "default", False)
self.assertTrue(result)
self.custom_object_client.patch_namespaced_custom_object.assert_called_once()
def test_validate_environment_exception(self):
"""
Test validate_environment handles exceptions
"""
self.custom_object_client.list_namespaced_custom_object = MagicMock(
side_effect=Exception("Connection error")
)
result = self.plugin.validate_environment("test-vm", "default")
self.assertFalse(result)
def test_validate_environment_vmi_not_found(self):
"""
Test validate_environment when VMI doesn't exist
"""
# Mock CRDs exist
mock_crd_list = MagicMock()
mock_crd_list.items = MagicMock(return_value=["item1"])
self.custom_object_client.list_namespaced_custom_object = MagicMock(return_value=mock_crd_list)
# Mock VMI not found
with patch.object(self.plugin, 'get_vmi', return_value=None):
result = self.plugin.validate_environment("test-vm", "default")
self.assertFalse(result)
# ==================== Delete VMI Tests ====================
def test_delete_vmi_successful_recreation(self):
"""
Test delete_vmi succeeds when VMI is recreated with new creationTimestamp
@@ -668,7 +479,22 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
# When VMI stays deleted (None), delete_vmi waits for recreation and times out
self.assertEqual(result, 1)
# ==================== Wait for Running Tests ====================
def test_wait_for_running_timeout(self):
"""
Test wait_for_running times out when VMI doesn't reach Running state
"""
self.plugin.affected_pod = AffectedPod(pod_name="test-vm", namespace="default")
# Mock VMI in Pending state
pending_vmi = self.mock_vmi.copy()
pending_vmi['status']['phase'] = 'Pending'
with patch.object(self.plugin, 'get_vmi', return_value=pending_vmi):
with patch('time.sleep'):
with patch('time.time', side_effect=[0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 121]):
result = self.plugin.wait_for_running("test-vm", "default", 120)
self.assertEqual(result, 1)
def test_wait_for_running_vmi_not_exists(self):
"""
@@ -682,15 +508,13 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
with patch.object(self.plugin, 'get_vmi', side_effect=[None, None, running_vmi]):
with patch('time.sleep'):
# time.time() called: start_time (0), iteration 1 (1), iteration 2 (2), iteration 3 (3), end_time (3)
# time.time() called: start_time (0), while loop iteration 1 (1), iteration 2 (2), iteration 3 (3), end_time (3)
with patch('time.time', side_effect=[0, 1, 2, 3, 3]):
result = self.plugin.wait_for_running("test-vm", "default", 120)
self.assertEqual(result, 0)
self.assertIsNotNone(self.plugin.affected_pod.pod_readiness_time)
# ==================== Recovery Tests ====================
def test_recover_no_original_vmi(self):
"""
Test recover fails when no original VMI is captured
@@ -718,8 +542,6 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
self.assertEqual(result, 1)
# ==================== Execute Scenario Tests ====================
def test_execute_scenario_missing_vm_name(self):
"""
Test execute_scenario fails when vm_name is missing
@@ -819,12 +641,38 @@ class TestKubevirtVmOutageScenarioPlugin(unittest.TestCase):
# Should have unrecovered pod
self.assertEqual(len(result.unrecovered), 1)
# ==================== Initialization Tests ====================
def test_validate_environment_exception(self):
"""
Test validate_environment handles exceptions
"""
self.custom_object_client.list_namespaced_custom_object = MagicMock(
side_effect=Exception("Connection error")
)
result = self.plugin.validate_environment("test-vm", "default")
self.assertFalse(result)
def test_validate_environment_vmi_not_found(self):
"""
Test validate_environment when VMI doesn't exist
"""
# Mock CRDs exist
mock_crd_list = MagicMock()
mock_crd_list.items = MagicMock(return_value=["item1"])
self.custom_object_client.list_namespaced_custom_object = MagicMock(return_value=mock_crd_list)
# Mock VMI not found
with patch.object(self.plugin, 'get_vmi', return_value=None):
result = self.plugin.validate_environment("test-vm", "default")
self.assertFalse(result)
def test_init_clients(self):
"""
Test init_clients initializes k8s client correctly
"""
mock_k8s = MagicMock(spec=KrknKubernetes)
mock_custom_client = MagicMock()
mock_k8s.custom_object_client = mock_custom_client

View File

@@ -10,12 +10,12 @@ Assisted By: Claude Code
"""
import unittest
from unittest.mock import Mock, patch, call
from unittest.mock import MagicMock
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.telemetry.ocp import KrknTelemetryOpenshift
from krkn.scenario_plugins.managed_cluster.managed_cluster_scenario_plugin import ManagedClusterScenarioPlugin
from krkn.scenario_plugins.managed_cluster import common_functions
class TestManagedClusterScenarioPlugin(unittest.TestCase):
@@ -25,7 +25,6 @@ class TestManagedClusterScenarioPlugin(unittest.TestCase):
Set up test fixtures for ManagedClusterScenarioPlugin
"""
self.plugin = ManagedClusterScenarioPlugin()
self.mock_kubecli = Mock(spec=KrknKubernetes)
def test_get_scenario_types(self):
"""
@@ -37,191 +36,5 @@ class TestManagedClusterScenarioPlugin(unittest.TestCase):
self.assertEqual(len(result), 1)
class TestCommonFunctions(unittest.TestCase):
"""
Test suite for common_functions module
"""
def setUp(self):
"""
Set up test fixtures for common_functions tests
"""
self.mock_kubecli = Mock(spec=KrknKubernetes)
def test_get_managedcluster_with_specific_name_exists(self):
"""
Test get_managedcluster returns the specified cluster when it exists
"""
self.mock_kubecli.list_killable_managedclusters.return_value = ["cluster1", "cluster2", "cluster3"]
result = common_functions.get_managedcluster(
"cluster1", "", 1, self.mock_kubecli
)
self.assertEqual(result, ["cluster1"])
self.mock_kubecli.list_killable_managedclusters.assert_called_once_with()
def test_get_managedcluster_with_specific_name_not_exists(self):
"""
Test get_managedcluster falls back to label selector when specified cluster doesn't exist
"""
self.mock_kubecli.list_killable_managedclusters.side_effect = [
["cluster2", "cluster3"],
["cluster2", "cluster3"]
]
result = common_functions.get_managedcluster(
"cluster1", "env=test", 1, self.mock_kubecli
)
self.assertEqual(len(result), 1)
self.assertIn(result[0], ["cluster2", "cluster3"])
def test_get_managedcluster_with_label_selector(self):
"""
Test get_managedcluster returns clusters matching label selector
"""
self.mock_kubecli.list_killable_managedclusters.side_effect = [
["cluster1", "cluster2", "cluster3"],
["cluster1", "cluster2", "cluster3"],
]
result = common_functions.get_managedcluster(
"", "env=production", 2, self.mock_kubecli
)
self.assertEqual(len(result), 2)
# Should be called once without and once with label_selector
self.assertEqual(
self.mock_kubecli.list_killable_managedclusters.call_count,
2,
)
self.mock_kubecli.list_killable_managedclusters.assert_has_calls(
[call(), call("env=production")]
)
def test_get_managedcluster_no_available_clusters(self):
"""
Test get_managedcluster raises exception when no clusters are available
"""
self.mock_kubecli.list_killable_managedclusters.return_value = []
with self.assertRaises(Exception) as context:
common_functions.get_managedcluster(
"", "env=nonexistent", 1, self.mock_kubecli
)
self.assertIn("Available managedclusters with the provided label selector do not exist", str(context.exception))
def test_get_managedcluster_kill_count_equals_available(self):
"""
Test get_managedcluster returns all clusters when instance_kill_count equals available clusters
"""
available_clusters = ["cluster1", "cluster2", "cluster3"]
self.mock_kubecli.list_killable_managedclusters.return_value = available_clusters
result = common_functions.get_managedcluster(
"", "env=test", 3, self.mock_kubecli
)
self.assertEqual(result, available_clusters)
self.assertEqual(len(result), 3)
@patch('logging.info')
def test_get_managedcluster_return_empty_when_count_is_zero(self, mock_logging):
"""
Test get_managedcluster returns empty list when instance_kill_count is 0
"""
available_clusters = ["cluster1", "cluster2", "cluster3"]
self.mock_kubecli.list_killable_managedclusters.return_value = available_clusters
result = common_functions.get_managedcluster(
"", "env=test", 0, self.mock_kubecli
)
self.assertEqual(result, [])
mock_logging.assert_called()
@patch('random.randint')
def test_get_managedcluster_random_selection(self, mock_randint):
"""
Test get_managedcluster randomly selects the specified number of clusters
"""
available_clusters = ["cluster1", "cluster2", "cluster3", "cluster4", "cluster5"]
self.mock_kubecli.list_killable_managedclusters.return_value = available_clusters.copy()
mock_randint.side_effect = [1, 0, 2]
result = common_functions.get_managedcluster(
"", "env=test", 3, self.mock_kubecli
)
self.assertEqual(len(result), 3)
for cluster in result:
self.assertIn(cluster, available_clusters)
# Ensure no duplicates
self.assertEqual(len(result), len(set(result)))
@patch('logging.info')
def test_get_managedcluster_logs_available_clusters(self, mock_logging):
"""
Test get_managedcluster logs available clusters with label selector
"""
available_clusters = ["cluster1", "cluster2"]
self.mock_kubecli.list_killable_managedclusters.return_value = available_clusters
common_functions.get_managedcluster(
"", "env=test", 1, self.mock_kubecli
)
mock_logging.assert_called()
call_args = str(mock_logging.call_args)
self.assertIn("Available managedclusters with the label selector", call_args)
@patch('logging.info')
def test_get_managedcluster_logs_when_name_not_found(self, mock_logging):
"""
Test get_managedcluster logs when specified cluster name doesn't exist
"""
self.mock_kubecli.list_killable_managedclusters.side_effect = [
["cluster2"],
["cluster2"]
]
common_functions.get_managedcluster(
"nonexistent-cluster", "env=test", 1, self.mock_kubecli
)
# Check that logging was called multiple times (including the info message about unavailable cluster)
self.assertGreaterEqual(mock_logging.call_count, 1)
# Check all calls for the expected message
all_calls = [str(call) for call in mock_logging.call_args_list]
found_message = any("managedcluster with provided managedcluster_name does not exist" in call
for call in all_calls)
self.assertTrue(found_message)
def test_wait_for_available_status(self):
"""
Test wait_for_available_status calls watch_managedcluster_status with correct parameters
"""
common_functions.wait_for_available_status(
"test-cluster", 300, self.mock_kubecli
)
self.mock_kubecli.watch_managedcluster_status.assert_called_once_with(
"test-cluster", "True", 300
)
def test_wait_for_unavailable_status(self):
"""
Test wait_for_unavailable_status calls watch_managedcluster_status with correct parameters
"""
common_functions.wait_for_unavailable_status(
"test-cluster", 300, self.mock_kubecli
)
self.mock_kubecli.watch_managedcluster_status.assert_called_once_with(
"test-cluster", "Unknown", 300
)
if __name__ == "__main__":
unittest.main()

View File

@@ -10,10 +10,12 @@ Assisted By: Claude Code
"""
import unittest
from unittest.mock import patch
from unittest.mock import MagicMock
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.telemetry.ocp import KrknTelemetryOpenshift
from krkn.scenario_plugins.network_chaos_ng.network_chaos_ng_scenario_plugin import NetworkChaosNgScenarioPlugin
from krkn.scenario_plugins.network_chaos_ng.modules import utils
class TestNetworkChaosNgScenarioPlugin(unittest.TestCase):
@@ -34,80 +36,5 @@ class TestNetworkChaosNgScenarioPlugin(unittest.TestCase):
self.assertEqual(len(result), 1)
class TestNetworkChaosNgUtils(unittest.TestCase):
@patch("krkn.scenario_plugins.network_chaos_ng.modules.utils.logging.info")
def test_log_info_non_parallel(self, mock_logging_info):
"""
Test log_info function with parallel=False
"""
utils.log_info("Test message")
mock_logging_info.assert_called_once_with("Test message")
@patch("krkn.scenario_plugins.network_chaos_ng.modules.utils.logging.info")
def test_log_info_parallel(self, mock_logging_info):
"""
Test log_info function with parallel=True
"""
utils.log_info("Test message", parallel=True, node_name="node1")
mock_logging_info.assert_called_once_with("[node1]: Test message")
@patch("krkn.scenario_plugins.network_chaos_ng.modules.utils.logging.info")
def test_log_info_parallel_missing_node_name(self, mock_logging_info):
"""
Test log_info with parallel=True and missing node_name
"""
utils.log_info("Test message", parallel=True)
mock_logging_info.assert_called_once_with("[]: Test message")
@patch("krkn.scenario_plugins.network_chaos_ng.modules.utils.logging.error")
def test_log_error_non_parallel(self, mock_logging_error):
"""
Test log_error function with parallel=False
"""
utils.log_error("Error message")
mock_logging_error.assert_called_once_with("Error message")
@patch("krkn.scenario_plugins.network_chaos_ng.modules.utils.logging.error")
def test_log_error_parallel(self, mock_logging_error):
"""
Test log_error function with parallel=True
"""
utils.log_error("Error message", parallel=True, node_name="node2")
mock_logging_error.assert_called_once_with("[node2]: Error message")
@patch("krkn.scenario_plugins.network_chaos_ng.modules.utils.logging.error")
def test_log_error_parallel_missing_node_name(self, mock_logging_error):
"""
Test log_error with parallel=True and missing node_name
"""
utils.log_error("Error message", parallel=True)
mock_logging_error.assert_called_once_with("[]: Error message")
@patch("krkn.scenario_plugins.network_chaos_ng.modules.utils.logging.warning")
def test_log_warning_non_parallel(self, mock_logging_warning):
"""
Test log_warning function with parallel=False
"""
utils.log_warning("Warning message")
mock_logging_warning.assert_called_once_with("Warning message")
@patch("krkn.scenario_plugins.network_chaos_ng.modules.utils.logging.warning")
def test_log_warning_parallel(self, mock_logging_warning):
"""
Test log_warning function with parallel=True
"""
utils.log_warning("Warning message", parallel=True, node_name="node3")
mock_logging_warning.assert_called_once_with("[node3]: Warning message")
@patch("krkn.scenario_plugins.network_chaos_ng.modules.utils.logging.warning")
def test_log_warning_parallel_missing_node_name(self, mock_logging_warning):
"""
Test log_warning with parallel=True and missing node_name
"""
utils.log_warning("Warning message", parallel=True)
mock_logging_warning.assert_called_once_with("[]: Warning message")
if __name__ == "__main__":
unittest.main()

View File

@@ -10,15 +10,10 @@ Assisted By: Claude Code
"""
import unittest
from unittest.mock import MagicMock, Mock, patch, mock_open, call
import yaml
import tempfile
import os
from unittest.mock import MagicMock
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.telemetry.ocp import KrknTelemetryOpenshift
from krkn_lib.models.telemetry import ScenarioTelemetry
from krkn_lib.models.k8s import AffectedNodeStatus
from krkn.scenario_plugins.node_actions.node_actions_scenario_plugin import NodeActionsScenarioPlugin
@@ -29,16 +24,7 @@ class TestNodeActionsScenarioPlugin(unittest.TestCase):
"""
Set up test fixtures for NodeActionsScenarioPlugin
"""
# Reset node_general global variable before each test
import krkn.scenario_plugins.node_actions.node_actions_scenario_plugin as plugin_module
plugin_module.node_general = False
self.plugin = NodeActionsScenarioPlugin()
self.mock_kubecli = Mock(spec=KrknKubernetes)
self.mock_lib_telemetry = Mock(spec=KrknTelemetryOpenshift)
self.mock_lib_telemetry.get_lib_kubernetes.return_value = self.mock_kubecli
self.mock_scenario_telemetry = Mock(spec=ScenarioTelemetry)
self.mock_scenario_telemetry.affected_nodes = []
def test_get_scenario_types(self):
"""
@@ -49,700 +35,6 @@ class TestNodeActionsScenarioPlugin(unittest.TestCase):
self.assertEqual(result, ["node_scenarios"])
self.assertEqual(len(result), 1)
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.general_node_scenarios')
def test_get_node_scenario_object_generic(self, mock_general_scenarios):
"""
Test get_node_scenario_object returns general_node_scenarios for generic cloud type
"""
node_scenario = {"cloud_type": "generic"}
mock_general_instance = Mock()
mock_general_scenarios.return_value = mock_general_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_general_instance)
mock_general_scenarios.assert_called_once()
args = mock_general_scenarios.call_args[0]
self.assertEqual(args[0], self.mock_kubecli)
self.assertTrue(args[1]) # node_action_kube_check defaults to True
self.assertIsInstance(args[2], AffectedNodeStatus)
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.general_node_scenarios')
def test_get_node_scenario_object_no_cloud_type(self, mock_general_scenarios):
"""
Test get_node_scenario_object returns general_node_scenarios when cloud_type is not specified
"""
node_scenario = {}
mock_general_instance = Mock()
mock_general_scenarios.return_value = mock_general_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_general_instance)
mock_general_scenarios.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.aws_node_scenarios')
def test_get_node_scenario_object_aws(self, mock_aws_scenarios):
"""
Test get_node_scenario_object returns aws_node_scenarios for AWS cloud type
"""
node_scenario = {"cloud_type": "aws"}
mock_aws_instance = Mock()
mock_aws_scenarios.return_value = mock_aws_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_aws_instance)
mock_aws_scenarios.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.gcp_node_scenarios')
def test_get_node_scenario_object_gcp(self, mock_gcp_scenarios):
"""
Test get_node_scenario_object returns gcp_node_scenarios for GCP cloud type
"""
node_scenario = {"cloud_type": "gcp"}
mock_gcp_instance = Mock()
mock_gcp_scenarios.return_value = mock_gcp_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_gcp_instance)
mock_gcp_scenarios.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.azure_node_scenarios')
def test_get_node_scenario_object_azure(self, mock_azure_scenarios):
"""
Test get_node_scenario_object returns azure_node_scenarios for Azure cloud type
"""
node_scenario = {"cloud_type": "azure"}
mock_azure_instance = Mock()
mock_azure_scenarios.return_value = mock_azure_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_azure_instance)
mock_azure_scenarios.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.azure_node_scenarios')
def test_get_node_scenario_object_az(self, mock_azure_scenarios):
"""
Test get_node_scenario_object returns azure_node_scenarios for 'az' cloud type alias
"""
node_scenario = {"cloud_type": "az"}
mock_azure_instance = Mock()
mock_azure_scenarios.return_value = mock_azure_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_azure_instance)
mock_azure_scenarios.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.docker_node_scenarios')
def test_get_node_scenario_object_docker(self, mock_docker_scenarios):
"""
Test get_node_scenario_object returns docker_node_scenarios for Docker cloud type
"""
node_scenario = {"cloud_type": "docker"}
mock_docker_instance = Mock()
mock_docker_scenarios.return_value = mock_docker_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_docker_instance)
mock_docker_scenarios.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.vmware_node_scenarios')
def test_get_node_scenario_object_vmware(self, mock_vmware_scenarios):
"""
Test get_node_scenario_object returns vmware_node_scenarios for VMware cloud type
"""
node_scenario = {"cloud_type": "vmware"}
mock_vmware_instance = Mock()
mock_vmware_scenarios.return_value = mock_vmware_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_vmware_instance)
mock_vmware_scenarios.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.vmware_node_scenarios')
def test_get_node_scenario_object_vsphere(self, mock_vmware_scenarios):
"""
Test get_node_scenario_object returns vmware_node_scenarios for vSphere cloud type alias
"""
node_scenario = {"cloud_type": "vsphere"}
mock_vmware_instance = Mock()
mock_vmware_scenarios.return_value = mock_vmware_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_vmware_instance)
mock_vmware_scenarios.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.ibm_node_scenarios')
def test_get_node_scenario_object_ibm(self, mock_ibm_scenarios):
"""
Test get_node_scenario_object returns ibm_node_scenarios for IBM cloud type
"""
node_scenario = {"cloud_type": "ibm"}
mock_ibm_instance = Mock()
mock_ibm_scenarios.return_value = mock_ibm_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_ibm_instance)
mock_ibm_scenarios.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.ibm_node_scenarios')
def test_get_node_scenario_object_ibmcloud(self, mock_ibm_scenarios):
"""
Test get_node_scenario_object returns ibm_node_scenarios for ibmcloud cloud type alias
"""
node_scenario = {"cloud_type": "ibmcloud", "disable_ssl_verification": False}
mock_ibm_instance = Mock()
mock_ibm_scenarios.return_value = mock_ibm_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_ibm_instance)
args = mock_ibm_scenarios.call_args[0]
self.assertFalse(args[3]) # disable_ssl_verification should be False
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.ibmcloud_power_node_scenarios')
def test_get_node_scenario_object_ibmpower(self, mock_ibmpower_scenarios):
"""
Test get_node_scenario_object returns ibmcloud_power_node_scenarios for ibmpower cloud type
"""
node_scenario = {"cloud_type": "ibmpower"}
mock_ibmpower_instance = Mock()
mock_ibmpower_scenarios.return_value = mock_ibmpower_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_ibmpower_instance)
mock_ibmpower_scenarios.assert_called_once()
def test_get_node_scenario_object_openstack(self):
"""
Test get_node_scenario_object returns openstack_node_scenarios for OpenStack cloud type
"""
with patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.openstack_node_scenarios') as mock_openstack:
node_scenario = {"cloud_type": "openstack"}
mock_openstack_instance = Mock()
mock_openstack.return_value = mock_openstack_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_openstack_instance)
mock_openstack.assert_called_once()
def test_get_node_scenario_object_alibaba(self):
"""
Test get_node_scenario_object returns alibaba_node_scenarios for Alibaba cloud type
"""
with patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.alibaba_node_scenarios') as mock_alibaba:
node_scenario = {"cloud_type": "alibaba"}
mock_alibaba_instance = Mock()
mock_alibaba.return_value = mock_alibaba_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_alibaba_instance)
mock_alibaba.assert_called_once()
def test_get_node_scenario_object_alicloud(self):
"""
Test get_node_scenario_object returns alibaba_node_scenarios for alicloud alias
"""
with patch('krkn.scenario_plugins.node_actions.alibaba_node_scenarios.alibaba_node_scenarios') as mock_alibaba:
node_scenario = {"cloud_type": "alicloud"}
mock_alibaba_instance = Mock()
mock_alibaba.return_value = mock_alibaba_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_alibaba_instance)
mock_alibaba.assert_called_once()
def test_get_node_scenario_object_bm(self):
"""
Test get_node_scenario_object returns bm_node_scenarios for bare metal cloud type
"""
with patch('krkn.scenario_plugins.node_actions.bm_node_scenarios.bm_node_scenarios') as mock_bm:
node_scenario = {
"cloud_type": "bm",
"bmc_info": "192.168.1.1",
"bmc_user": "admin",
"bmc_password": "password"
}
mock_bm_instance = Mock()
mock_bm.return_value = mock_bm_instance
result = self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertEqual(result, mock_bm_instance)
args = mock_bm.call_args[0]
self.assertEqual(args[0], "192.168.1.1")
self.assertEqual(args[1], "admin")
self.assertEqual(args[2], "password")
def test_get_node_scenario_object_unsupported_cloud(self):
"""
Test get_node_scenario_object raises exception for unsupported cloud type
"""
node_scenario = {"cloud_type": "unsupported_cloud"}
with self.assertRaises(Exception) as context:
self.plugin.get_node_scenario_object(node_scenario, self.mock_kubecli)
self.assertIn("not currently supported", str(context.exception))
self.assertIn("unsupported_cloud", str(context.exception))
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.common_node_functions')
def test_inject_node_scenario_with_node_name(self, mock_common_funcs):
"""
Test inject_node_scenario with specific node name
"""
node_scenario = {
"node_name": "node1,node2",
"instance_count": 2,
"runs": 1,
"timeout": 120,
"duration": 60,
"poll_interval": 15
}
action = "node_stop_start_scenario"
mock_scenario_object = Mock()
mock_scenario_object.affected_nodes_status = AffectedNodeStatus()
mock_scenario_object.affected_nodes_status.affected_nodes = []
mock_common_funcs.get_node_by_name.return_value = ["node1", "node2"]
self.plugin.inject_node_scenario(
action,
node_scenario,
mock_scenario_object,
self.mock_kubecli,
self.mock_scenario_telemetry
)
mock_common_funcs.get_node_by_name.assert_called_once_with(["node1", "node2"], self.mock_kubecli)
self.assertEqual(mock_scenario_object.node_stop_start_scenario.call_count, 2)
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.common_node_functions')
def test_inject_node_scenario_with_label_selector(self, mock_common_funcs):
"""
Test inject_node_scenario with label selector
"""
node_scenario = {
"label_selector": "node-role.kubernetes.io/worker",
"instance_count": 1
}
action = "node_reboot_scenario"
mock_scenario_object = Mock()
mock_scenario_object.affected_nodes_status = AffectedNodeStatus()
mock_scenario_object.affected_nodes_status.affected_nodes = []
mock_common_funcs.get_node.return_value = ["worker-node-1"]
self.plugin.inject_node_scenario(
action,
node_scenario,
mock_scenario_object,
self.mock_kubecli,
self.mock_scenario_telemetry
)
mock_common_funcs.get_node.assert_called_once_with("node-role.kubernetes.io/worker", 1, self.mock_kubecli)
mock_scenario_object.node_reboot_scenario.assert_called_once()
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.common_node_functions')
def test_inject_node_scenario_with_exclude_label(self, mock_common_funcs):
"""
Test inject_node_scenario with exclude label
"""
node_scenario = {
"label_selector": "node-role.kubernetes.io/worker",
"exclude_label": "node-role.kubernetes.io/master",
"instance_count": 2
}
action = "node_stop_scenario"
mock_scenario_object = Mock()
mock_scenario_object.affected_nodes_status = AffectedNodeStatus()
mock_scenario_object.affected_nodes_status.affected_nodes = []
mock_common_funcs.get_node.side_effect = [
["worker-1", "master-1"],
["master-1"]
]
self.plugin.inject_node_scenario(
action,
node_scenario,
mock_scenario_object,
self.mock_kubecli,
self.mock_scenario_telemetry
)
self.assertEqual(mock_common_funcs.get_node.call_count, 2)
# Should only process worker-1 after excluding master-1
self.assertEqual(mock_scenario_object.node_stop_scenario.call_count, 1)
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.common_node_functions')
def test_inject_node_scenario_parallel_mode(self, mock_common_funcs):
"""
Test inject_node_scenario with parallel processing
"""
node_scenario = {
"node_name": "node1,node2,node3",
"parallel": True
}
action = "restart_kubelet_scenario"
mock_scenario_object = Mock()
mock_scenario_object.affected_nodes_status = AffectedNodeStatus()
mock_scenario_object.affected_nodes_status.affected_nodes = []
mock_common_funcs.get_node_by_name.return_value = ["node1", "node2", "node3"]
with patch.object(self.plugin, 'multiprocess_nodes') as mock_multiprocess:
self.plugin.inject_node_scenario(
action,
node_scenario,
mock_scenario_object,
self.mock_kubecli,
self.mock_scenario_telemetry
)
mock_multiprocess.assert_called_once()
args = mock_multiprocess.call_args[0]
self.assertEqual(args[0], ["node1", "node2", "node3"])
self.assertEqual(args[2], action)
def test_run_node_node_start_scenario(self):
"""
Test run_node executes node_start_scenario action
"""
node_scenario = {"runs": 2, "timeout": 300, "poll_interval": 10}
action = "node_start_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.node_start_scenario.assert_called_once_with(2, "test-node", 300, 10)
def test_run_node_node_stop_scenario(self):
"""
Test run_node executes node_stop_scenario action
"""
node_scenario = {"runs": 1, "timeout": 120, "poll_interval": 15}
action = "node_stop_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.node_stop_scenario.assert_called_once_with(1, "test-node", 120, 15)
def test_run_node_node_stop_start_scenario(self):
"""
Test run_node executes node_stop_start_scenario action
"""
node_scenario = {"runs": 1, "timeout": 120, "duration": 60, "poll_interval": 15}
action = "node_stop_start_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.node_stop_start_scenario.assert_called_once_with(1, "test-node", 120, 60, 15)
def test_run_node_node_termination_scenario(self):
"""
Test run_node executes node_termination_scenario action
"""
node_scenario = {}
action = "node_termination_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.node_termination_scenario.assert_called_once_with(1, "test-node", 120, 15)
def test_run_node_node_reboot_scenario(self):
"""
Test run_node executes node_reboot_scenario action
"""
node_scenario = {"soft_reboot": True}
action = "node_reboot_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.node_reboot_scenario.assert_called_once_with(1, "test-node", 120, True)
def test_run_node_node_disk_detach_attach_scenario(self):
"""
Test run_node executes node_disk_detach_attach_scenario action
"""
node_scenario = {"duration": 90}
action = "node_disk_detach_attach_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.node_disk_detach_attach_scenario.assert_called_once_with(1, "test-node", 120, 90)
def test_run_node_stop_start_kubelet_scenario(self):
"""
Test run_node executes stop_start_kubelet_scenario action
"""
node_scenario = {}
action = "stop_start_kubelet_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.stop_start_kubelet_scenario.assert_called_once_with(1, "test-node", 120)
def test_run_node_restart_kubelet_scenario(self):
"""
Test run_node executes restart_kubelet_scenario action
"""
node_scenario = {}
action = "restart_kubelet_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.restart_kubelet_scenario.assert_called_once_with(1, "test-node", 120)
def test_run_node_stop_kubelet_scenario(self):
"""
Test run_node executes stop_kubelet_scenario action
"""
node_scenario = {}
action = "stop_kubelet_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.stop_kubelet_scenario.assert_called_once_with(1, "test-node", 120)
def test_run_node_node_crash_scenario(self):
"""
Test run_node executes node_crash_scenario action
"""
node_scenario = {}
action = "node_crash_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.node_crash_scenario.assert_called_once_with(1, "test-node", 120)
def test_run_node_node_block_scenario(self):
"""
Test run_node executes node_block_scenario action
"""
node_scenario = {"duration": 100}
action = "node_block_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.node_block_scenario.assert_called_once_with(1, "test-node", 120, 100)
@patch('logging.info')
def test_run_node_stop_start_helper_node_scenario_openstack(self, mock_logging):
"""
Test run_node executes stop_start_helper_node_scenario for OpenStack
"""
node_scenario = {
"cloud_type": "openstack",
"helper_node_ip": "192.168.1.100",
"service": "neutron-server"
}
action = "stop_start_helper_node_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_scenario_object.helper_node_stop_start_scenario.assert_called_once_with(1, "192.168.1.100", 120)
mock_scenario_object.helper_node_service_status.assert_called_once()
@patch('logging.error')
def test_run_node_stop_start_helper_node_scenario_non_openstack(self, mock_logging):
"""
Test run_node logs error for stop_start_helper_node_scenario on non-OpenStack
"""
node_scenario = {
"cloud_type": "aws",
"helper_node_ip": "192.168.1.100"
}
action = "stop_start_helper_node_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_logging.assert_called()
self.assertIn("not supported", str(mock_logging.call_args))
@patch('logging.error')
def test_run_node_stop_start_helper_node_scenario_missing_ip(self, mock_logging):
"""
Test run_node raises exception when helper_node_ip is missing
"""
node_scenario = {
"cloud_type": "openstack",
"helper_node_ip": None
}
action = "stop_start_helper_node_scenario"
mock_scenario_object = Mock()
with self.assertRaises(Exception) as context:
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
self.assertIn("Helper node IP address is not provided", str(context.exception))
@patch('logging.info')
def test_run_node_generic_cloud_skip_unsupported_action(self, mock_logging):
"""
Test run_node skips unsupported actions for generic cloud type
"""
# Set node_general to True for this test
import krkn.scenario_plugins.node_actions.node_actions_scenario_plugin as plugin_module
plugin_module.node_general = True
node_scenario = {}
action = "node_stop_scenario"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_logging.assert_called()
self.assertIn("not set up for generic cloud type", str(mock_logging.call_args))
@patch('logging.info')
def test_run_node_unknown_action(self, mock_logging):
"""
Test run_node logs info for unknown action
"""
node_scenario = {}
action = "unknown_action"
mock_scenario_object = Mock()
self.plugin.run_node("test-node", mock_scenario_object, action, node_scenario)
mock_logging.assert_called()
# Could be either message depending on node_general state
call_str = str(mock_logging.call_args)
self.assertTrue(
"no node action that matches" in call_str or
"not set up for generic cloud type" in call_str
)
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.cerberus')
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.common_node_functions')
@patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.general_node_scenarios')
@patch('builtins.open', new_callable=mock_open)
@patch('time.time')
def test_run_successful(self, mock_time, mock_file, mock_general_scenarios, mock_common_funcs, mock_cerberus):
"""
Test successful run of node actions scenario
"""
scenario_yaml = {
"node_scenarios": [
{
"cloud_type": "generic",
"node_name": "test-node",
"actions": ["stop_kubelet_scenario"]
}
]
}
mock_file.return_value.__enter__.return_value.read.return_value = yaml.dump(scenario_yaml)
mock_time.side_effect = [1000, 1100]
mock_scenario_object = Mock()
mock_scenario_object.affected_nodes_status = AffectedNodeStatus()
mock_scenario_object.affected_nodes_status.affected_nodes = []
mock_general_scenarios.return_value = mock_scenario_object
mock_common_funcs.get_node_by_name.return_value = ["test-node"]
mock_cerberus.get_status.return_value = None
with patch('yaml.full_load', return_value=scenario_yaml):
result = self.plugin.run(
"test-uuid",
"/path/to/scenario.yaml",
{},
self.mock_lib_telemetry,
self.mock_scenario_telemetry
)
self.assertEqual(result, 0)
mock_cerberus.get_status.assert_called_once_with({}, 1000, 1100)
@patch('logging.error')
@patch('builtins.open', new_callable=mock_open)
def test_run_with_exception(self, mock_file, mock_logging):
"""
Test run handles exceptions and returns 1
"""
scenario_yaml = {
"node_scenarios": [
{
"cloud_type": "unsupported"
}
]
}
with patch('yaml.full_load', return_value=scenario_yaml):
result = self.plugin.run(
"test-uuid",
"/path/to/scenario.yaml",
{},
self.mock_lib_telemetry,
self.mock_scenario_telemetry
)
self.assertEqual(result, 1)
mock_logging.assert_called()
@patch('logging.info')
def test_multiprocess_nodes(self, mock_logging):
"""
Test multiprocess_nodes executes run_node for multiple nodes in parallel
"""
nodes = ["node1", "node2", "node3"]
mock_scenario_object = Mock()
action = "restart_kubelet_scenario"
node_scenario = {}
with patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.ThreadPool') as mock_pool:
mock_pool_instance = Mock()
mock_pool.return_value = mock_pool_instance
self.plugin.multiprocess_nodes(nodes, mock_scenario_object, action, node_scenario)
mock_pool.assert_called_once_with(processes=3)
mock_pool_instance.starmap.assert_called_once()
mock_pool_instance.close.assert_called_once()
@patch('logging.info')
def test_multiprocess_nodes_with_exception(self, mock_logging):
"""
Test multiprocess_nodes handles exceptions gracefully
"""
nodes = ["node1", "node2"]
mock_scenario_object = Mock()
action = "node_reboot_scenario"
node_scenario = {}
with patch('krkn.scenario_plugins.node_actions.node_actions_scenario_plugin.ThreadPool') as mock_pool:
mock_pool.side_effect = Exception("Pool error")
self.plugin.multiprocess_nodes(nodes, mock_scenario_object, action, node_scenario)
mock_logging.assert_called()
self.assertIn("Error on pool multiprocessing", str(mock_logging.call_args))
if __name__ == "__main__":
unittest.main()

View File

@@ -1,719 +0,0 @@
#!/usr/bin/env python3
"""
Test suite for OpenStack node scenarios
This test suite covers both the OPENSTACKCLOUD class and openstack_node_scenarios class
using mocks to avoid actual OpenStack CLI calls.
Usage:
python -m coverage run -a -m unittest tests/test_openstack_node_scenarios.py -v
Assisted By: Claude Code
"""
import unittest
from unittest.mock import MagicMock, patch, Mock
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.models.k8s import AffectedNode, AffectedNodeStatus
from krkn.scenario_plugins.node_actions.openstack_node_scenarios import (
OPENSTACKCLOUD,
openstack_node_scenarios
)
class TestOPENSTACKCLOUD(unittest.TestCase):
"""Test cases for OPENSTACKCLOUD class"""
def setUp(self):
"""Set up test fixtures"""
self.openstack = OPENSTACKCLOUD()
def test_openstackcloud_init(self):
"""Test OPENSTACKCLOUD class initialization"""
self.assertEqual(self.openstack.Wait, 30)
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.OPENSTACKCLOUD.get_openstack_nodename')
def test_get_instance_id(self, mock_get_nodename):
"""Test getting instance ID by node IP"""
node_ip = '10.0.1.100'
node_name = 'test-openstack-node'
mock_get_nodename.return_value = node_name
result = self.openstack.get_instance_id(node_ip)
self.assertEqual(result, node_name)
mock_get_nodename.assert_called_once_with(node_ip)
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_start_instances_success(self, mock_invoke, mock_logging):
"""Test starting instance successfully"""
node_name = 'test-node'
self.openstack.start_instances(node_name)
mock_invoke.assert_called_once_with('openstack server start %s' % node_name)
mock_logging.assert_called()
self.assertIn("started", str(mock_logging.call_args))
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_start_instances_failure(self, mock_invoke, mock_logging):
"""Test starting instance with failure"""
node_name = 'test-node'
mock_invoke.side_effect = Exception("OpenStack error")
with self.assertRaises(RuntimeError):
self.openstack.start_instances(node_name)
mock_logging.assert_called()
self.assertIn("Failed to start", str(mock_logging.call_args))
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_stop_instances_success(self, mock_invoke, mock_logging):
"""Test stopping instance successfully"""
node_name = 'test-node'
self.openstack.stop_instances(node_name)
mock_invoke.assert_called_once_with('openstack server stop %s' % node_name)
mock_logging.assert_called()
self.assertIn("stopped", str(mock_logging.call_args))
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_stop_instances_failure(self, mock_invoke, mock_logging):
"""Test stopping instance with failure"""
node_name = 'test-node'
mock_invoke.side_effect = Exception("OpenStack error")
with self.assertRaises(RuntimeError):
self.openstack.stop_instances(node_name)
mock_logging.assert_called()
self.assertIn("Failed to stop", str(mock_logging.call_args))
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_reboot_instances_success(self, mock_invoke, mock_logging):
"""Test rebooting instance successfully"""
node_name = 'test-node'
self.openstack.reboot_instances(node_name)
mock_invoke.assert_called_once_with('openstack server reboot --soft %s' % node_name)
mock_logging.assert_called()
self.assertIn("rebooted", str(mock_logging.call_args))
@patch('logging.error')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_reboot_instances_failure(self, mock_invoke, mock_logging):
"""Test rebooting instance with failure"""
node_name = 'test-node'
mock_invoke.side_effect = Exception("OpenStack error")
with self.assertRaises(RuntimeError):
self.openstack.reboot_instances(node_name)
mock_logging.assert_called()
self.assertIn("Failed to reboot", str(mock_logging.call_args))
@patch('time.time')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.OPENSTACKCLOUD.get_instance_status')
def test_wait_until_running_success(self, mock_get_status, mock_time):
"""Test waiting until instance is running successfully"""
node_name = 'test-node'
timeout = 300
mock_time.side_effect = [100, 110]
mock_get_status.return_value = True
affected_node = Mock(spec=AffectedNode)
result = self.openstack.wait_until_running(node_name, timeout, affected_node)
self.assertTrue(result)
mock_get_status.assert_called_once_with(node_name, "ACTIVE", timeout)
affected_node.set_affected_node_status.assert_called_once_with("running", 10)
@patch('time.time')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.OPENSTACKCLOUD.get_instance_status')
def test_wait_until_running_without_affected_node(self, mock_get_status, mock_time):
"""Test waiting until running without affected node tracking"""
node_name = 'test-node'
timeout = 300
mock_get_status.return_value = True
result = self.openstack.wait_until_running(node_name, timeout, None)
self.assertTrue(result)
@patch('time.time')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.OPENSTACKCLOUD.get_instance_status')
def test_wait_until_stopped_success(self, mock_get_status, mock_time):
"""Test waiting until instance is stopped successfully"""
node_name = 'test-node'
timeout = 300
mock_time.side_effect = [100, 115]
mock_get_status.return_value = True
affected_node = Mock(spec=AffectedNode)
result = self.openstack.wait_until_stopped(node_name, timeout, affected_node)
self.assertTrue(result)
mock_get_status.assert_called_once_with(node_name, "SHUTOFF", timeout)
affected_node.set_affected_node_status.assert_called_once_with("stopped", 15)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_get_instance_status_success(self, mock_invoke, mock_logging, mock_sleep):
"""Test getting instance status when it matches expected status"""
node_name = 'test-node'
expected_status = 'ACTIVE'
timeout = 60
mock_invoke.return_value = 'ACTIVE'
result = self.openstack.get_instance_status(node_name, expected_status, timeout)
self.assertTrue(result)
mock_invoke.assert_called()
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_get_instance_status_timeout(self, mock_invoke, mock_logging, mock_sleep):
"""Test getting instance status with timeout"""
node_name = 'test-node'
expected_status = 'ACTIVE'
timeout = 2
mock_invoke.return_value = 'SHUTOFF'
result = self.openstack.get_instance_status(node_name, expected_status, timeout)
self.assertFalse(result)
@patch('time.sleep')
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_get_instance_status_with_whitespace(self, mock_invoke, mock_logging, mock_sleep):
"""Test getting instance status with whitespace in response"""
node_name = 'test-node'
expected_status = 'ACTIVE'
timeout = 60
mock_invoke.return_value = ' ACTIVE '
result = self.openstack.get_instance_status(node_name, expected_status, timeout)
self.assertTrue(result)
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_get_openstack_nodename_success(self, mock_invoke, mock_logging):
"""Test getting OpenStack node name by IP"""
node_ip = '10.0.1.100'
# Mock OpenStack server list output
mock_output = """| 12345 | test-node | ACTIVE | network1=10.0.1.100 |"""
mock_invoke.return_value = mock_output
result = self.openstack.get_openstack_nodename(node_ip)
self.assertEqual(result, 'test-node')
mock_invoke.assert_called_once()
@patch('logging.info')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_get_openstack_nodename_multiple_servers(self, mock_invoke, mock_logging):
"""Test getting OpenStack node name with multiple servers"""
node_ip = '10.0.1.101'
# Mock OpenStack server list output with multiple servers
mock_output = """| 12345 | test-node-1 | ACTIVE | network1=10.0.1.100 |
| 67890 | test-node-2 | ACTIVE | network1=10.0.1.101 |"""
mock_invoke.return_value = mock_output
result = self.openstack.get_openstack_nodename(node_ip)
self.assertEqual(result, 'test-node-2')
@patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.runcommand.invoke')
def test_get_openstack_nodename_no_match(self, mock_invoke):
"""Test getting OpenStack node name with no matching IP"""
node_ip = '10.0.1.200'
mock_output = """| 12345 | test-node | ACTIVE | network1=10.0.1.100 |"""
mock_invoke.return_value = mock_output
result = self.openstack.get_openstack_nodename(node_ip)
self.assertIsNone(result)
class TestOpenstackNodeScenarios(unittest.TestCase):
"""Test cases for openstack_node_scenarios class"""
def setUp(self):
"""Set up test fixtures"""
self.kubecli = MagicMock(spec=KrknKubernetes)
self.affected_nodes_status = AffectedNodeStatus()
# Mock the OPENSTACKCLOUD class
with patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.OPENSTACKCLOUD') as mock_openstack_class:
self.mock_openstack = MagicMock()
mock_openstack_class.return_value = self.mock_openstack
self.scenario = openstack_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=True,
affected_nodes_status=self.affected_nodes_status
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_start_scenario_success(self, mock_wait_ready):
"""Test node start scenario successfully"""
node = 'test-node'
node_ip = '10.0.1.100'
openstack_node_name = 'openstack-test-node'
self.kubecli.get_node_ip.return_value = node_ip
self.mock_openstack.get_instance_id.return_value = openstack_node_name
self.mock_openstack.start_instances.return_value = None
self.mock_openstack.wait_until_running.return_value = True
self.scenario.node_start_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
self.kubecli.get_node_ip.assert_called_once_with(node)
self.mock_openstack.get_instance_id.assert_called_once_with(node_ip)
self.mock_openstack.start_instances.assert_called_once_with(openstack_node_name)
self.mock_openstack.wait_until_running.assert_called_once()
mock_wait_ready.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
def test_node_start_scenario_no_kube_check(self, mock_wait_ready):
"""Test node start scenario without kube check"""
node = 'test-node'
node_ip = '10.0.1.100'
openstack_node_name = 'openstack-test-node'
# Create scenario with node_action_kube_check=False
with patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.OPENSTACKCLOUD') as mock_openstack_class:
mock_openstack = MagicMock()
mock_openstack_class.return_value = mock_openstack
scenario = openstack_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
self.kubecli.get_node_ip.return_value = node_ip
mock_openstack.get_instance_id.return_value = openstack_node_name
mock_openstack.start_instances.return_value = None
mock_openstack.wait_until_running.return_value = True
scenario.node_start_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
# Should not call wait_for_ready_status
mock_wait_ready.assert_not_called()
def test_node_start_scenario_failure(self):
"""Test node start scenario with failure"""
node = 'test-node'
node_ip = '10.0.1.100'
self.kubecli.get_node_ip.return_value = node_ip
self.mock_openstack.get_instance_id.side_effect = Exception("OpenStack error")
with self.assertRaises(RuntimeError):
self.scenario.node_start_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
def test_node_start_scenario_multiple_kills(self):
"""Test node start scenario with multiple kill counts"""
node = 'test-node'
node_ip = '10.0.1.100'
openstack_node_name = 'openstack-test-node'
with patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.OPENSTACKCLOUD') as mock_openstack_class:
mock_openstack = MagicMock()
mock_openstack_class.return_value = mock_openstack
scenario = openstack_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
self.kubecli.get_node_ip.return_value = node_ip
mock_openstack.get_instance_id.return_value = openstack_node_name
mock_openstack.start_instances.return_value = None
mock_openstack.wait_until_running.return_value = True
scenario.node_start_scenario(
instance_kill_count=3,
node=node,
timeout=600,
poll_interval=15
)
self.assertEqual(mock_openstack.start_instances.call_count, 3)
self.assertEqual(len(scenario.affected_nodes_status.affected_nodes), 3)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_not_ready_status')
def test_node_stop_scenario_success(self, mock_wait_not_ready):
"""Test node stop scenario successfully"""
node = 'test-node'
node_ip = '10.0.1.100'
openstack_node_name = 'openstack-test-node'
self.kubecli.get_node_ip.return_value = node_ip
self.mock_openstack.get_instance_id.return_value = openstack_node_name
self.mock_openstack.stop_instances.return_value = None
self.mock_openstack.wait_until_stopped.return_value = True
self.scenario.node_stop_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
self.kubecli.get_node_ip.assert_called_once_with(node)
self.mock_openstack.get_instance_id.assert_called_once_with(node_ip)
self.mock_openstack.stop_instances.assert_called_once_with(openstack_node_name)
self.mock_openstack.wait_until_stopped.assert_called_once()
mock_wait_not_ready.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_not_ready_status')
def test_node_stop_scenario_no_kube_check(self, mock_wait_not_ready):
"""Test node stop scenario without kube check"""
node = 'test-node'
node_ip = '10.0.1.100'
openstack_node_name = 'openstack-test-node'
# Create scenario with node_action_kube_check=False
with patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.OPENSTACKCLOUD') as mock_openstack_class:
mock_openstack = MagicMock()
mock_openstack_class.return_value = mock_openstack
scenario = openstack_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
self.kubecli.get_node_ip.return_value = node_ip
mock_openstack.get_instance_id.return_value = openstack_node_name
mock_openstack.stop_instances.return_value = None
mock_openstack.wait_until_stopped.return_value = True
scenario.node_stop_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
# Should not call wait_for_not_ready_status
mock_wait_not_ready.assert_not_called()
def test_node_stop_scenario_failure(self):
"""Test node stop scenario with failure"""
node = 'test-node'
node_ip = '10.0.1.100'
self.kubecli.get_node_ip.return_value = node_ip
self.mock_openstack.get_instance_id.side_effect = Exception("OpenStack error")
with self.assertRaises(RuntimeError):
self.scenario.node_stop_scenario(
instance_kill_count=1,
node=node,
timeout=600,
poll_interval=15
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
def test_node_reboot_scenario_success(self, mock_wait_unknown, mock_wait_ready):
"""Test node reboot scenario successfully"""
node = 'test-node'
node_ip = '10.0.1.100'
openstack_node_name = 'openstack-test-node'
self.kubecli.get_node_ip.return_value = node_ip
self.mock_openstack.get_instance_id.return_value = openstack_node_name
self.mock_openstack.reboot_instances.return_value = None
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node=node,
timeout=600
)
self.kubecli.get_node_ip.assert_called_once_with(node)
self.mock_openstack.get_instance_id.assert_called_once_with(node_ip)
self.mock_openstack.reboot_instances.assert_called_once_with(openstack_node_name)
mock_wait_unknown.assert_called_once()
mock_wait_ready.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_ready_status')
@patch('krkn.scenario_plugins.node_actions.common_node_functions.wait_for_unknown_status')
def test_node_reboot_scenario_no_kube_check(self, mock_wait_unknown, mock_wait_ready):
"""Test node reboot scenario without kube check"""
node = 'test-node'
node_ip = '10.0.1.100'
openstack_node_name = 'openstack-test-node'
# Create scenario with node_action_kube_check=False
with patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.OPENSTACKCLOUD') as mock_openstack_class:
mock_openstack = MagicMock()
mock_openstack_class.return_value = mock_openstack
scenario = openstack_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
self.kubecli.get_node_ip.return_value = node_ip
mock_openstack.get_instance_id.return_value = openstack_node_name
mock_openstack.reboot_instances.return_value = None
scenario.node_reboot_scenario(
instance_kill_count=1,
node=node,
timeout=600
)
# Should not call wait functions
mock_wait_unknown.assert_not_called()
mock_wait_ready.assert_not_called()
def test_node_reboot_scenario_failure(self):
"""Test node reboot scenario with failure"""
node = 'test-node'
node_ip = '10.0.1.100'
self.kubecli.get_node_ip.return_value = node_ip
self.mock_openstack.get_instance_id.side_effect = Exception("OpenStack error")
with self.assertRaises(RuntimeError):
self.scenario.node_reboot_scenario(
instance_kill_count=1,
node=node,
timeout=600
)
def test_node_reboot_scenario_multiple_kills(self):
"""Test node reboot scenario with multiple kill counts"""
node = 'test-node'
node_ip = '10.0.1.100'
openstack_node_name = 'openstack-test-node'
with patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.OPENSTACKCLOUD') as mock_openstack_class:
mock_openstack = MagicMock()
mock_openstack_class.return_value = mock_openstack
scenario = openstack_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
self.kubecli.get_node_ip.return_value = node_ip
mock_openstack.get_instance_id.return_value = openstack_node_name
mock_openstack.reboot_instances.return_value = None
scenario.node_reboot_scenario(
instance_kill_count=3,
node=node,
timeout=600
)
self.assertEqual(mock_openstack.reboot_instances.call_count, 3)
self.assertEqual(len(scenario.affected_nodes_status.affected_nodes), 3)
def test_helper_node_start_scenario_success(self):
"""Test helper node start scenario successfully"""
node_ip = '192.168.1.50'
openstack_node_name = 'helper-node'
self.mock_openstack.get_openstack_nodename.return_value = openstack_node_name
self.mock_openstack.start_instances.return_value = None
self.mock_openstack.wait_until_running.return_value = True
self.scenario.helper_node_start_scenario(
instance_kill_count=1,
node_ip=node_ip,
timeout=600
)
self.mock_openstack.get_openstack_nodename.assert_called_once_with(node_ip.strip())
self.mock_openstack.start_instances.assert_called_once_with(openstack_node_name)
self.mock_openstack.wait_until_running.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
def test_helper_node_start_scenario_failure(self):
"""Test helper node start scenario with failure"""
node_ip = '192.168.1.50'
self.mock_openstack.get_openstack_nodename.side_effect = Exception("OpenStack error")
with self.assertRaises(RuntimeError):
self.scenario.helper_node_start_scenario(
instance_kill_count=1,
node_ip=node_ip,
timeout=600
)
def test_helper_node_start_scenario_multiple_kills(self):
"""Test helper node start scenario with multiple kill counts"""
node_ip = '192.168.1.50'
openstack_node_name = 'helper-node'
with patch('krkn.scenario_plugins.node_actions.openstack_node_scenarios.OPENSTACKCLOUD') as mock_openstack_class:
mock_openstack = MagicMock()
mock_openstack_class.return_value = mock_openstack
scenario = openstack_node_scenarios(
kubecli=self.kubecli,
node_action_kube_check=False,
affected_nodes_status=AffectedNodeStatus()
)
mock_openstack.get_openstack_nodename.return_value = openstack_node_name
mock_openstack.start_instances.return_value = None
mock_openstack.wait_until_running.return_value = True
scenario.helper_node_start_scenario(
instance_kill_count=2,
node_ip=node_ip,
timeout=600
)
self.assertEqual(mock_openstack.start_instances.call_count, 2)
self.assertEqual(len(scenario.affected_nodes_status.affected_nodes), 2)
def test_helper_node_stop_scenario_success(self):
"""Test helper node stop scenario successfully"""
node_ip = '192.168.1.50'
openstack_node_name = 'helper-node'
self.mock_openstack.get_openstack_nodename.return_value = openstack_node_name
self.mock_openstack.stop_instances.return_value = None
self.mock_openstack.wait_until_stopped.return_value = True
self.scenario.helper_node_stop_scenario(
instance_kill_count=1,
node_ip=node_ip,
timeout=600
)
self.mock_openstack.get_openstack_nodename.assert_called_once_with(node_ip.strip())
self.mock_openstack.stop_instances.assert_called_once_with(openstack_node_name)
self.mock_openstack.wait_until_stopped.assert_called_once()
self.assertEqual(len(self.affected_nodes_status.affected_nodes), 1)
def test_helper_node_stop_scenario_failure(self):
"""Test helper node stop scenario with failure"""
node_ip = '192.168.1.50'
self.mock_openstack.get_openstack_nodename.side_effect = Exception("OpenStack error")
with self.assertRaises(RuntimeError):
self.scenario.helper_node_stop_scenario(
instance_kill_count=1,
node_ip=node_ip,
timeout=600
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.check_service_status')
def test_helper_node_service_status_success(self, mock_check_service):
"""Test helper node service status check successfully"""
node_ip = '192.168.1.50'
service = 'kubelet'
ssh_private_key = '/path/to/key'
timeout = 300
mock_check_service.return_value = None
self.scenario.helper_node_service_status(
node_ip=node_ip,
service=service,
ssh_private_key=ssh_private_key,
timeout=timeout
)
mock_check_service.assert_called_once_with(
node_ip.strip(),
service,
ssh_private_key,
timeout
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.check_service_status')
def test_helper_node_service_status_failure(self, mock_check_service):
"""Test helper node service status check with failure"""
node_ip = '192.168.1.50'
service = 'kubelet'
ssh_private_key = '/path/to/key'
timeout = 300
mock_check_service.side_effect = Exception("Service check failed")
with self.assertRaises(RuntimeError):
self.scenario.helper_node_service_status(
node_ip=node_ip,
service=service,
ssh_private_key=ssh_private_key,
timeout=timeout
)
@patch('krkn.scenario_plugins.node_actions.common_node_functions.check_service_status')
def test_helper_node_service_status_with_whitespace_ip(self, mock_check_service):
"""Test helper node service status with whitespace in IP"""
node_ip = ' 192.168.1.50 '
service = 'kubelet'
ssh_private_key = '/path/to/key'
timeout = 300
mock_check_service.return_value = None
self.scenario.helper_node_service_status(
node_ip=node_ip,
service=service,
ssh_private_key=ssh_private_key,
timeout=timeout
)
# Verify IP was stripped
mock_check_service.assert_called_once_with(
node_ip.strip(),
service,
ssh_private_key,
timeout
)
if __name__ == "__main__":
unittest.main()

View File

@@ -9,22 +9,16 @@ Usage:
Assisted By: Claude Code
"""
import base64
import json
import os
import tempfile
import unittest
from unittest.mock import MagicMock, patch
import yaml
from unittest.mock import MagicMock
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.telemetry.ocp import KrknTelemetryOpenshift
from krkn.scenario_plugins.pvc.pvc_scenario_plugin import PvcScenarioPlugin
from krkn.rollback.config import RollbackContent
class TestPvcScenarioPlugin(unittest.TestCase):
"""Unit tests for PvcScenarioPlugin class"""
def setUp(self):
"""
@@ -42,790 +36,5 @@ class TestPvcScenarioPlugin(unittest.TestCase):
self.assertEqual(len(result), 1)
class TestToKbytes(unittest.TestCase):
"""Tests for the to_kbytes method"""
def setUp(self):
"""Set up test fixtures"""
self.plugin = PvcScenarioPlugin()
def test_to_kbytes_1ki(self):
"""Test to_kbytes with 1Ki"""
self.assertEqual(self.plugin.to_kbytes("1Ki"), 1)
def test_to_kbytes_2ki(self):
"""Test to_kbytes with 2Ki"""
self.assertEqual(self.plugin.to_kbytes("2Ki"), 2)
def test_to_kbytes_1mi(self):
"""Test to_kbytes with 1Mi"""
self.assertEqual(self.plugin.to_kbytes("1Mi"), 1024)
def test_to_kbytes_2mi(self):
"""Test to_kbytes with 2Mi"""
self.assertEqual(self.plugin.to_kbytes("2Mi"), 2 * 1024)
def test_to_kbytes_1gi(self):
"""Test to_kbytes with 1Gi"""
self.assertEqual(self.plugin.to_kbytes("1Gi"), 1024 * 1024)
def test_to_kbytes_5gi(self):
"""Test to_kbytes with 5Gi"""
self.assertEqual(self.plugin.to_kbytes("5Gi"), 5 * 1024 * 1024)
def test_to_kbytes_1ti(self):
"""Test to_kbytes with 1Ti"""
self.assertEqual(self.plugin.to_kbytes("1Ti"), 1024 * 1024 * 1024)
def test_to_kbytes_invalid_missing_i(self):
"""Test to_kbytes raises RuntimeError for 1K (missing i)"""
with self.assertRaises(RuntimeError):
self.plugin.to_kbytes("1K")
def test_to_kbytes_invalid_format_mb(self):
"""Test to_kbytes raises RuntimeError for 1MB"""
with self.assertRaises(RuntimeError):
self.plugin.to_kbytes("1MB")
def test_to_kbytes_invalid_extra_char(self):
"""Test to_kbytes raises RuntimeError for 1Gib"""
with self.assertRaises(RuntimeError):
self.plugin.to_kbytes("1Gib")
def test_to_kbytes_invalid_non_numeric(self):
"""Test to_kbytes raises RuntimeError for abc"""
with self.assertRaises(RuntimeError):
self.plugin.to_kbytes("abc")
def test_to_kbytes_invalid_missing_unit(self):
"""Test to_kbytes raises RuntimeError for 1024"""
with self.assertRaises(RuntimeError):
self.plugin.to_kbytes("1024")
def test_to_kbytes_invalid_empty(self):
"""Test to_kbytes raises RuntimeError for empty string"""
with self.assertRaises(RuntimeError):
self.plugin.to_kbytes("")
def test_to_kbytes_invalid_unsupported_unit(self):
"""Test to_kbytes raises RuntimeError for 1Pi (unsupported)"""
with self.assertRaises(RuntimeError):
self.plugin.to_kbytes("1Pi")
class TestRemoveTempFile(unittest.TestCase):
"""Tests for the remove_temp_file method"""
def setUp(self):
"""Set up test fixtures"""
self.plugin = PvcScenarioPlugin()
def test_remove_temp_file_success(self):
"""Test successful removal of temp file"""
mock_kubecli = MagicMock(spec=KrknKubernetes)
# Simulate file not present in ls output after removal
mock_kubecli.exec_cmd_in_pod.side_effect = [
"", # rm -f command output
"total 0\ndrwxr-xr-x 2 root root 40 Jan 1 00:00 .", # ls -lh output without kraken.tmp
]
# Should not raise any exception
self.plugin.remove_temp_file(
file_name="kraken.tmp",
full_path="/mnt/data/kraken.tmp",
pod_name="test-pod",
namespace="test-ns",
container_name="test-container",
mount_path="/mnt/data",
file_size_kb=1024,
kubecli=mock_kubecli,
)
# Verify exec_cmd_in_pod was called twice (rm and ls)
self.assertEqual(mock_kubecli.exec_cmd_in_pod.call_count, 2)
def test_remove_temp_file_failure(self):
"""Test removal failure when file still exists"""
mock_kubecli = MagicMock(spec=KrknKubernetes)
# Simulate file still present in ls output after removal attempt
mock_kubecli.exec_cmd_in_pod.side_effect = [
"", # rm -f command output
"total 1024\n-rw-r--r-- 1 root root 1M Jan 1 00:00 kraken.tmp", # ls -lh output with kraken.tmp
]
with self.assertRaises(RuntimeError):
self.plugin.remove_temp_file(
file_name="kraken.tmp",
full_path="/mnt/data/kraken.tmp",
pod_name="test-pod",
namespace="test-ns",
container_name="test-container",
mount_path="/mnt/data",
file_size_kb=1024,
kubecli=mock_kubecli,
)
class TestRollbackTempFile(unittest.TestCase):
"""Tests for the rollback_temp_file static method"""
def test_rollback_temp_file_success(self):
"""Test successful rollback removes temp file"""
# Create mock telemetry
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_kubecli = MagicMock()
mock_telemetry.get_lib_kubernetes.return_value = mock_kubecli
# Simulate successful file removal
mock_kubecli.exec_cmd_in_pod.side_effect = [
"", # rm -f command output
"total 0\ndrwxr-xr-x 2 root root 40 Jan 1 00:00 .", # ls -lh output without file
]
# Create rollback data
rollback_data = {
"pod_name": "test-pod",
"container_name": "test-container",
"full_path": "/mnt/data/kraken.tmp",
"file_name": "kraken.tmp",
"mount_path": "/mnt/data",
}
encoded_data = base64.b64encode(
json.dumps(rollback_data).encode("utf-8")
).decode("utf-8")
rollback_content = RollbackContent(
namespace="test-ns",
resource_identifier=encoded_data,
)
# Should not raise any exception
PvcScenarioPlugin.rollback_temp_file(rollback_content, mock_telemetry)
# Verify exec_cmd_in_pod was called
self.assertEqual(mock_kubecli.exec_cmd_in_pod.call_count, 2)
@patch("krkn.scenario_plugins.pvc.pvc_scenario_plugin.logging")
def test_rollback_temp_file_invalid_data(self, mock_logging):
"""Test rollback handles invalid encoded data gracefully and logs error"""
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
rollback_content = RollbackContent(
namespace="test-ns",
resource_identifier="invalid-base64-data!!!",
)
# Should not raise exception, just log the error
PvcScenarioPlugin.rollback_temp_file(rollback_content, mock_telemetry)
# Verify error was logged to inform users of rollback failure
mock_logging.error.assert_called_once()
error_message = mock_logging.error.call_args[0][0]
self.assertIn("Failed to rollback PVC scenario temp file", error_message)
class TestPvcScenarioPluginRun(unittest.TestCase):
"""Tests for the run method of PvcScenarioPlugin"""
def setUp(self):
"""Set up test fixtures"""
self.plugin = PvcScenarioPlugin()
def create_scenario_file(self, config: dict, temp_dir: str) -> str:
"""Helper to create a temporary scenario YAML file in the given directory"""
path = os.path.join(temp_dir, "scenario.yaml")
with open(path, "w") as f:
yaml.dump(config, f)
return path
def test_run_missing_namespace(self):
"""Test run returns 1 when namespace is missing"""
with tempfile.TemporaryDirectory() as temp_dir:
scenario_config = {
"pvc_scenario": {
"pvc_name": "test-pvc",
# namespace is missing
}
}
scenario_path = self.create_scenario_file(scenario_config, temp_dir)
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_scenario_telemetry = MagicMock()
result = self.plugin.run(
run_uuid="test-uuid",
scenario=scenario_path,
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
assert result == 1
def test_run_missing_pvc_and_pod_name(self):
"""Test run returns 1 when both pvc_name and pod_name are missing"""
with tempfile.TemporaryDirectory() as temp_dir:
scenario_config = {
"pvc_scenario": {
"namespace": "test-ns",
# pvc_name and pod_name are missing
}
}
scenario_path = self.create_scenario_file(scenario_config, temp_dir)
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_scenario_telemetry = MagicMock()
result = self.plugin.run(
run_uuid="test-uuid",
scenario=scenario_path,
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 1)
def test_run_pod_not_found(self):
"""Test run returns 1 when pod doesn't exist"""
with tempfile.TemporaryDirectory() as temp_dir:
scenario_config = {
"pvc_scenario": {
"namespace": "test-ns",
"pod_name": "non-existent-pod",
}
}
scenario_path = self.create_scenario_file(scenario_config, temp_dir)
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_kubecli = MagicMock()
mock_telemetry.get_lib_kubernetes.return_value = mock_kubecli
mock_kubecli.get_pod_info.return_value = None
mock_scenario_telemetry = MagicMock()
result = self.plugin.run(
run_uuid="test-uuid",
scenario=scenario_path,
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 1)
def test_run_pvc_not_found_for_pod(self):
"""Test run returns 1 when pod has no PVC"""
with tempfile.TemporaryDirectory() as temp_dir:
scenario_config = {
"pvc_scenario": {
"namespace": "test-ns",
"pod_name": "test-pod",
}
}
scenario_path = self.create_scenario_file(scenario_config, temp_dir)
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_kubecli = MagicMock()
mock_telemetry.get_lib_kubernetes.return_value = mock_kubecli
# Create mock pod with no PVC volumes
mock_pod = MagicMock()
mock_volume = MagicMock()
mock_volume.pvcName = None # No PVC attached
mock_pod.volumes = [mock_volume]
mock_kubecli.get_pod_info.return_value = mock_pod
mock_scenario_telemetry = MagicMock()
result = self.plugin.run(
run_uuid="test-uuid",
scenario=scenario_path,
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 1)
def test_run_invalid_fill_percentage(self):
"""Test run returns 1 when target fill percentage is invalid"""
with tempfile.TemporaryDirectory() as temp_dir:
scenario_config = {
"pvc_scenario": {
"namespace": "test-ns",
"pod_name": "test-pod",
"fill_percentage": 10, # Lower than current usage
}
}
scenario_path = self.create_scenario_file(scenario_config, temp_dir)
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_kubecli = MagicMock()
mock_telemetry.get_lib_kubernetes.return_value = mock_kubecli
# Create mock pod with PVC volume
mock_pod = MagicMock()
mock_volume = MagicMock()
mock_volume.pvcName = "test-pvc"
mock_volume.name = "test-volume"
mock_pod.volumes = [mock_volume]
# Create mock container with volume mount
mock_container = MagicMock()
mock_container.name = "test-container"
mock_vol_mount = MagicMock()
mock_vol_mount.name = "test-volume"
mock_vol_mount.mountPath = "/mnt/data"
mock_container.volumeMounts = [mock_vol_mount]
mock_pod.containers = [mock_container]
mock_kubecli.get_pod_info.return_value = mock_pod
# Mock PVC info
mock_pvc = MagicMock()
mock_kubecli.get_pvc_info.return_value = mock_pvc
# Mock df command output: 50% used (50000 used, 50000 available, 100000 total)
mock_kubecli.exec_cmd_in_pod.return_value = (
"/dev/sda1 100000 50000 50000 50% /mnt/data"
)
mock_scenario_telemetry = MagicMock()
result = self.plugin.run(
run_uuid="test-uuid",
scenario=scenario_path,
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
# Should return 1 because target fill (10%) < current fill (50%)
self.assertEqual(result, 1)
@patch("krkn.scenario_plugins.pvc.pvc_scenario_plugin.time.sleep")
@patch("krkn.scenario_plugins.pvc.pvc_scenario_plugin.cerberus.publish_kraken_status")
def test_run_success_with_fallocate(self, mock_publish, mock_sleep):
"""Test successful run using fallocate"""
with tempfile.TemporaryDirectory() as temp_dir:
scenario_config = {
"pvc_scenario": {
"namespace": "test-ns",
"pod_name": "test-pod",
"fill_percentage": 80,
"duration": 1,
}
}
scenario_path = self.create_scenario_file(scenario_config, temp_dir)
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_kubecli = MagicMock()
mock_telemetry.get_lib_kubernetes.return_value = mock_kubecli
# Create mock pod with PVC volume
mock_pod = MagicMock()
mock_volume = MagicMock()
mock_volume.pvcName = "test-pvc"
mock_volume.name = "test-volume"
mock_pod.volumes = [mock_volume]
# Create mock container with volume mount
mock_container = MagicMock()
mock_container.name = "test-container"
mock_vol_mount = MagicMock()
mock_vol_mount.name = "test-volume"
mock_vol_mount.mountPath = "/mnt/data"
mock_container.volumeMounts = [mock_vol_mount]
mock_pod.containers = [mock_container]
mock_kubecli.get_pod_info.return_value = mock_pod
# Mock PVC info
mock_pvc = MagicMock()
mock_kubecli.get_pvc_info.return_value = mock_pvc
# Set up exec_cmd_in_pod responses
mock_kubecli.exec_cmd_in_pod.side_effect = [
"/dev/sda1 100000 10000 90000 10% /mnt/data", # df command (10% used)
"/usr/bin/fallocate", # command -v fallocate
"/usr/bin/dd", # command -v dd
"", # fallocate command
"-rw-r--r-- 1 root root 70M Jan 1 00:00 kraken.tmp", # ls -lh (file created)
"", # rm -f (cleanup)
"total 0", # ls -lh (file removed)
]
mock_scenario_telemetry = MagicMock()
result = self.plugin.run(
run_uuid="test-uuid",
scenario=scenario_path,
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 0)
mock_sleep.assert_called_once_with(1)
@patch("krkn.scenario_plugins.pvc.pvc_scenario_plugin.time.sleep")
@patch("krkn.scenario_plugins.pvc.pvc_scenario_plugin.cerberus.publish_kraken_status")
def test_run_success_with_dd(self, mock_publish, mock_sleep):
"""Test successful run using dd when fallocate is not available"""
with tempfile.TemporaryDirectory() as temp_dir:
scenario_config = {
"pvc_scenario": {
"namespace": "test-ns",
"pod_name": "test-pod",
"fill_percentage": 80,
"duration": 1,
}
}
scenario_path = self.create_scenario_file(scenario_config, temp_dir)
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_kubecli = MagicMock()
mock_telemetry.get_lib_kubernetes.return_value = mock_kubecli
# Create mock pod with PVC volume
mock_pod = MagicMock()
mock_volume = MagicMock()
mock_volume.pvcName = "test-pvc"
mock_volume.name = "test-volume"
mock_pod.volumes = [mock_volume]
# Create mock container with volume mount
mock_container = MagicMock()
mock_container.name = "test-container"
mock_vol_mount = MagicMock()
mock_vol_mount.name = "test-volume"
mock_vol_mount.mountPath = "/mnt/data"
mock_container.volumeMounts = [mock_vol_mount]
mock_pod.containers = [mock_container]
mock_kubecli.get_pod_info.return_value = mock_pod
# Mock PVC info
mock_pvc = MagicMock()
mock_kubecli.get_pvc_info.return_value = mock_pvc
# Set up exec_cmd_in_pod responses (fallocate not available)
mock_kubecli.exec_cmd_in_pod.side_effect = [
"/dev/sda1 100000 10000 90000 10% /mnt/data", # df command
"", # command -v fallocate (not found)
"/usr/bin/dd", # command -v dd
"", # dd command
"-rw-r--r-- 1 root root 70M Jan 1 00:00 kraken.tmp", # ls -lh
"", # rm -f
"total 0", # ls -lh (file removed)
]
mock_scenario_telemetry = MagicMock()
result = self.plugin.run(
run_uuid="test-uuid",
scenario=scenario_path,
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 0)
def test_run_no_binary_available(self):
"""Test run returns 1 when neither fallocate nor dd is available"""
with tempfile.TemporaryDirectory() as temp_dir:
scenario_config = {
"pvc_scenario": {
"namespace": "test-ns",
"pod_name": "test-pod",
"fill_percentage": 80,
}
}
scenario_path = self.create_scenario_file(scenario_config, temp_dir)
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_kubecli = MagicMock()
mock_telemetry.get_lib_kubernetes.return_value = mock_kubecli
# Create mock pod with PVC volume
mock_pod = MagicMock()
mock_volume = MagicMock()
mock_volume.pvcName = "test-pvc"
mock_volume.name = "test-volume"
mock_pod.volumes = [mock_volume]
# Create mock container with volume mount
mock_container = MagicMock()
mock_container.name = "test-container"
mock_vol_mount = MagicMock()
mock_vol_mount.name = "test-volume"
mock_vol_mount.mountPath = "/mnt/data"
mock_container.volumeMounts = [mock_vol_mount]
mock_pod.containers = [mock_container]
mock_kubecli.get_pod_info.return_value = mock_pod
# Mock PVC info
mock_pvc = MagicMock()
mock_kubecli.get_pvc_info.return_value = mock_pvc
# Neither fallocate nor dd available
mock_kubecli.exec_cmd_in_pod.side_effect = [
"/dev/sda1 100000 10000 90000 10% /mnt/data", # df command
"", # command -v fallocate (not found)
"", # command -v dd (not found)
]
mock_scenario_telemetry = MagicMock()
result = self.plugin.run(
run_uuid="test-uuid",
scenario=scenario_path,
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 1)
def test_run_file_not_found(self):
"""Test run returns 1 when scenario file doesn't exist"""
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_scenario_telemetry = MagicMock()
result = self.plugin.run(
run_uuid="test-uuid",
scenario="/non/existent/path.yaml",
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 1)
def test_run_both_pvc_and_pod_name_provided(self):
"""Test run when both pvc_name and pod_name are provided (pod_name is overridden)"""
with tempfile.TemporaryDirectory() as temp_dir:
scenario_config = {
"pvc_scenario": {
"namespace": "test-ns",
"pvc_name": "test-pvc",
"pod_name": "ignored-pod", # This will be overridden
"fill_percentage": 80,
"duration": 1,
}
}
scenario_path = self.create_scenario_file(scenario_config, temp_dir)
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_kubecli = MagicMock()
mock_telemetry.get_lib_kubernetes.return_value = mock_kubecli
# Mock PVC info with pod names
mock_pvc = MagicMock()
mock_pvc.podNames = ["actual-pod-from-pvc"]
mock_kubecli.get_pvc_info.return_value = mock_pvc
# Create mock pod with PVC volume
mock_pod = MagicMock()
mock_volume = MagicMock()
mock_volume.pvcName = "test-pvc"
mock_volume.name = "test-volume"
mock_pod.volumes = [mock_volume]
# Create mock container with volume mount
mock_container = MagicMock()
mock_container.name = "test-container"
mock_vol_mount = MagicMock()
mock_vol_mount.name = "test-volume"
mock_vol_mount.mountPath = "/mnt/data"
mock_container.volumeMounts = [mock_vol_mount]
mock_pod.containers = [mock_container]
mock_kubecli.get_pod_info.return_value = mock_pod
# Mock df command output: 10% used
mock_kubecli.exec_cmd_in_pod.side_effect = [
"/dev/sda1 100000 10000 90000 10% /mnt/data", # df command
"/usr/bin/fallocate", # command -v fallocate
"/usr/bin/dd", # command -v dd
"", # fallocate command
"-rw-r--r-- 1 root root 70M Jan 1 00:00 kraken.tmp", # ls -lh (file created)
"", # rm -f (cleanup)
"total 0", # ls -lh (file removed)
]
mock_scenario_telemetry = MagicMock()
with patch("krkn.scenario_plugins.pvc.pvc_scenario_plugin.time.sleep"):
with patch("krkn.scenario_plugins.pvc.pvc_scenario_plugin.cerberus.publish_kraken_status"):
result = self.plugin.run(
run_uuid="test-uuid",
scenario=scenario_path,
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 0)
# get_pod_info should be called with "actual-pod-from-pvc", not "ignored-pod"
mock_kubecli.get_pod_info.assert_called_with(
name="actual-pod-from-pvc",
namespace="test-ns"
)
# Verify exec_cmd_in_pod uses the overridden pod name
for call in mock_kubecli.exec_cmd_in_pod.call_args_list:
kwargs = call[1]
if 'pod_name' in kwargs:
self.assertEqual(kwargs['pod_name'], "actual-pod-from-pvc")
def test_run_pvc_name_only_no_pods_associated(self):
"""Test run returns 1 when pvc_name is provided but no pods are associated"""
with tempfile.TemporaryDirectory() as temp_dir:
scenario_config = {
"pvc_scenario": {
"namespace": "test-ns",
"pvc_name": "test-pvc",
"fill_percentage": 80,
}
}
scenario_path = self.create_scenario_file(scenario_config, temp_dir)
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_kubecli = MagicMock()
mock_telemetry.get_lib_kubernetes.return_value = mock_kubecli
# Mock PVC info with empty pod names (no pods using this PVC)
mock_pvc = MagicMock()
mock_pvc.podNames = [] # No pods associated
mock_kubecli.get_pvc_info.return_value = mock_pvc
mock_scenario_telemetry = MagicMock()
result = self.plugin.run(
run_uuid="test-uuid",
scenario=scenario_path,
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
# Should return 1 because random.choice on empty list raises IndexError
self.assertEqual(result, 1)
def test_run_file_creation_failed(self):
"""Test run returns 1 when file creation fails and verifies cleanup is attempted"""
with tempfile.TemporaryDirectory() as temp_dir:
scenario_config = {
"pvc_scenario": {
"namespace": "test-ns",
"pod_name": "test-pod",
"fill_percentage": 80,
"duration": 1,
}
}
scenario_path = self.create_scenario_file(scenario_config, temp_dir)
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_kubecli = MagicMock()
mock_telemetry.get_lib_kubernetes.return_value = mock_kubecli
# Create mock pod with PVC volume
mock_pod = MagicMock()
mock_volume = MagicMock()
mock_volume.pvcName = "test-pvc"
mock_volume.name = "test-volume"
mock_pod.volumes = [mock_volume]
# Create mock container with volume mount
mock_container = MagicMock()
mock_container.name = "test-container"
mock_vol_mount = MagicMock()
mock_vol_mount.name = "test-volume"
mock_vol_mount.mountPath = "/mnt/data"
mock_container.volumeMounts = [mock_vol_mount]
mock_pod.containers = [mock_container]
mock_kubecli.get_pod_info.return_value = mock_pod
# Mock PVC info
mock_pvc = MagicMock()
mock_kubecli.get_pvc_info.return_value = mock_pvc
# Set up exec_cmd_in_pod responses - file creation fails
mock_kubecli.exec_cmd_in_pod.side_effect = [
"/dev/sda1 100000 10000 90000 10% /mnt/data", # df command
"/usr/bin/fallocate", # command -v fallocate
"/usr/bin/dd", # command -v dd
"", # fallocate command
"total 0", # ls -lh shows NO kraken.tmp (file creation failed)
"", # rm -f (cleanup attempt)
"total 0", # ls -lh (cleanup verification)
]
mock_scenario_telemetry = MagicMock()
result = self.plugin.run(
run_uuid="test-uuid",
scenario=scenario_path,
krkn_config={},
lib_telemetry=mock_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
# Should return 1 because file creation failed
self.assertEqual(result, 1)
# Verify cleanup was attempted (7 calls total: df, 2x command -v, fallocate, ls, rm, ls)
self.assertEqual(mock_kubecli.exec_cmd_in_pod.call_count, 7)
class TestRollbackTempFileEdgeCases(unittest.TestCase):
"""Additional tests for rollback_temp_file edge cases"""
@patch("krkn.scenario_plugins.pvc.pvc_scenario_plugin.logging")
def test_rollback_temp_file_still_exists(self, mock_logging):
"""Test rollback when file still exists after removal attempt and logs warning"""
mock_telemetry = MagicMock(spec=KrknTelemetryOpenshift)
mock_kubecli = MagicMock()
mock_telemetry.get_lib_kubernetes.return_value = mock_kubecli
# Simulate file still exists after rm command
mock_kubecli.exec_cmd_in_pod.side_effect = [
"", # rm -f command output
"-rw-r--r-- 1 root root 70M Jan 1 00:00 kraken.tmp", # ls -lh shows file still exists
]
# Create rollback data
rollback_data = {
"pod_name": "test-pod",
"container_name": "test-container",
"full_path": "/mnt/data/kraken.tmp",
"file_name": "kraken.tmp",
"mount_path": "/mnt/data",
}
encoded_data = base64.b64encode(
json.dumps(rollback_data).encode("utf-8")
).decode("utf-8")
rollback_content = RollbackContent(
namespace="test-ns",
resource_identifier=encoded_data,
)
# Should not raise exception, just log warning
PvcScenarioPlugin.rollback_temp_file(rollback_content, mock_telemetry)
# Verify exec_cmd_in_pod was called twice
assert mock_kubecli.exec_cmd_in_pod.call_count == 2
# Verify warning was logged to inform operators of incomplete rollback
mock_logging.warning.assert_called_once()
warning_message = mock_logging.warning.call_args[0][0]
self.assertIn("may still exist after rollback attempt", warning_message)
self.assertIn("kraken.tmp", warning_message)
if __name__ == "__main__":
unittest.main()

View File

@@ -1,385 +0,0 @@
#!/usr/bin/env python3
"""
Test suite for SimpleHTTPRequestHandler class
Usage:
python -m coverage run -a -m unittest tests/test_server.py -v
Assisted By: Claude Code
"""
import unittest
from unittest.mock import Mock, patch, MagicMock
from io import BytesIO
import server
from server import SimpleHTTPRequestHandler
class TestSimpleHTTPRequestHandler(unittest.TestCase):
def setUp(self):
"""
Set up test fixtures for SimpleHTTPRequestHandler
"""
# Reset the global server_status before each test
server.server_status = ""
# Reset the requests_served counter
SimpleHTTPRequestHandler.requests_served = 0
# Create a mock request
self.mock_request = MagicMock()
self.mock_client_address = ('127.0.0.1', 12345)
self.mock_server = MagicMock()
def _create_handler(self, method='GET', path='/'):
"""
Helper method to create a handler instance with mocked request
"""
# Create a mock request with proper attributes
mock_request = MagicMock()
mock_request.makefile.return_value = BytesIO(
f"{method} {path} HTTP/1.1\r\n\r\n".encode('utf-8')
)
# Create handler
handler = SimpleHTTPRequestHandler(
mock_request,
self.mock_client_address,
self.mock_server
)
# Mock the wfile (write file) for response
handler.wfile = BytesIO()
return handler
def test_do_GET_root_path_calls_do_status(self):
"""
Test do_GET with root path calls do_status
"""
handler = self._create_handler('GET', '/')
with patch.object(handler, 'do_status') as mock_do_status:
handler.do_GET()
mock_do_status.assert_called_once()
def test_do_GET_non_root_path_does_nothing(self):
"""
Test do_GET with non-root path does not call do_status
"""
handler = self._create_handler('GET', '/other')
with patch.object(handler, 'do_status') as mock_do_status:
handler.do_GET()
mock_do_status.assert_not_called()
def test_do_status_sends_200_response(self):
"""
Test do_status sends 200 status code
"""
server.server_status = "TEST_STATUS"
handler = self._create_handler()
with patch.object(handler, 'send_response') as mock_send_response:
with patch.object(handler, 'end_headers'):
handler.do_status()
mock_send_response.assert_called_once_with(200)
def test_do_status_writes_server_status(self):
"""
Test do_status writes server_status to response
"""
server.server_status = "RUNNING"
handler = self._create_handler()
with patch.object(handler, 'send_response'):
with patch.object(handler, 'end_headers'):
handler.do_status()
# Check that the status was written to wfile
response_content = handler.wfile.getvalue().decode('utf-8')
self.assertEqual(response_content, "RUNNING")
def test_do_status_increments_requests_served(self):
"""
Test do_status increments requests_served counter
"""
# Note: Creating a handler increments the counter by 1
# Then do_status increments it again
SimpleHTTPRequestHandler.requests_served = 0
handler = self._create_handler()
initial_count = SimpleHTTPRequestHandler.requests_served
with patch.object(handler, 'send_response'):
with patch.object(handler, 'end_headers'):
handler.do_status()
self.assertEqual(
SimpleHTTPRequestHandler.requests_served,
initial_count + 1
)
def test_do_status_multiple_requests_increment_counter(self):
"""
Test multiple do_status calls increment counter correctly
"""
SimpleHTTPRequestHandler.requests_served = 0
for i in range(5):
handler = self._create_handler()
with patch.object(handler, 'send_response'):
with patch.object(handler, 'end_headers'):
handler.do_status()
# Each iteration: handler creation increments by 1, do_status increments by 1
# Total: 5 * 2 = 10
self.assertEqual(SimpleHTTPRequestHandler.requests_served, 10)
def test_do_POST_STOP_path_calls_set_stop(self):
"""
Test do_POST with /STOP path calls set_stop
"""
handler = self._create_handler('POST', '/STOP')
with patch.object(handler, 'set_stop') as mock_set_stop:
handler.do_POST()
mock_set_stop.assert_called_once()
def test_do_POST_RUN_path_calls_set_run(self):
"""
Test do_POST with /RUN path calls set_run
"""
handler = self._create_handler('POST', '/RUN')
with patch.object(handler, 'set_run') as mock_set_run:
handler.do_POST()
mock_set_run.assert_called_once()
def test_do_POST_PAUSE_path_calls_set_pause(self):
"""
Test do_POST with /PAUSE path calls set_pause
"""
handler = self._create_handler('POST', '/PAUSE')
with patch.object(handler, 'set_pause') as mock_set_pause:
handler.do_POST()
mock_set_pause.assert_called_once()
def test_do_POST_unknown_path_does_nothing(self):
"""
Test do_POST with unknown path does not call any setter
"""
handler = self._create_handler('POST', '/UNKNOWN')
with patch.object(handler, 'set_stop') as mock_set_stop:
with patch.object(handler, 'set_run') as mock_set_run:
with patch.object(handler, 'set_pause') as mock_set_pause:
handler.do_POST()
mock_set_stop.assert_not_called()
mock_set_run.assert_not_called()
mock_set_pause.assert_not_called()
def test_set_run_sets_status_to_RUN(self):
"""
Test set_run sets global server_status to 'RUN'
"""
handler = self._create_handler()
with patch.object(handler, 'send_response'):
with patch.object(handler, 'end_headers'):
handler.set_run()
self.assertEqual(server.server_status, 'RUN')
def test_set_run_sends_200_response(self):
"""
Test set_run sends 200 status code
"""
handler = self._create_handler()
with patch.object(handler, 'send_response') as mock_send_response:
with patch.object(handler, 'end_headers'):
handler.set_run()
mock_send_response.assert_called_once_with(200)
def test_set_stop_sets_status_to_STOP(self):
"""
Test set_stop sets global server_status to 'STOP'
"""
handler = self._create_handler()
with patch.object(handler, 'send_response'):
with patch.object(handler, 'end_headers'):
handler.set_stop()
self.assertEqual(server.server_status, 'STOP')
def test_set_stop_sends_200_response(self):
"""
Test set_stop sends 200 status code
"""
handler = self._create_handler()
with patch.object(handler, 'send_response') as mock_send_response:
with patch.object(handler, 'end_headers'):
handler.set_stop()
mock_send_response.assert_called_once_with(200)
def test_set_pause_sets_status_to_PAUSE(self):
"""
Test set_pause sets global server_status to 'PAUSE'
"""
handler = self._create_handler()
with patch.object(handler, 'send_response'):
with patch.object(handler, 'end_headers'):
handler.set_pause()
self.assertEqual(server.server_status, 'PAUSE')
def test_set_pause_sends_200_response(self):
"""
Test set_pause sends 200 status code
"""
handler = self._create_handler()
with patch.object(handler, 'send_response') as mock_send_response:
with patch.object(handler, 'end_headers'):
handler.set_pause()
mock_send_response.assert_called_once_with(200)
def test_requests_served_is_class_variable(self):
"""
Test requests_served is shared across all instances
"""
SimpleHTTPRequestHandler.requests_served = 0
handler1 = self._create_handler() # Increments to 1
handler2 = self._create_handler() # Increments to 2
with patch.object(handler1, 'send_response'):
with patch.object(handler1, 'end_headers'):
handler1.do_status() # Increments to 3
with patch.object(handler2, 'send_response'):
with patch.object(handler2, 'end_headers'):
handler2.do_status() # Increments to 4
# Both handlers should see the same counter
# 2 handler creations + 2 do_status calls = 4
self.assertEqual(handler1.requests_served, 4)
self.assertEqual(handler2.requests_served, 4)
self.assertEqual(SimpleHTTPRequestHandler.requests_served, 4)
class TestServerModuleFunctions(unittest.TestCase):
def setUp(self):
"""
Set up test fixtures for server module functions
"""
server.server_status = ""
def test_publish_kraken_status_sets_server_status(self):
"""
Test publish_kraken_status sets global server_status
"""
server.publish_kraken_status("NEW_STATUS")
self.assertEqual(server.server_status, "NEW_STATUS")
def test_publish_kraken_status_overwrites_existing_status(self):
"""
Test publish_kraken_status overwrites existing status
"""
server.server_status = "OLD_STATUS"
server.publish_kraken_status("NEW_STATUS")
self.assertEqual(server.server_status, "NEW_STATUS")
@patch('server.HTTPServer')
@patch('server._thread')
def test_start_server_creates_http_server(self, mock_thread, mock_http_server):
"""
Test start_server creates HTTPServer with correct address
"""
address = ("localhost", 8080)
mock_server_instance = MagicMock()
mock_http_server.return_value = mock_server_instance
server.start_server(address, "RUNNING")
mock_http_server.assert_called_once_with(
address,
SimpleHTTPRequestHandler
)
@patch('server.HTTPServer')
@patch('server._thread')
def test_start_server_starts_thread(self, mock_thread, mock_http_server):
"""
Test start_server starts a new thread for serve_forever
"""
address = ("localhost", 8080)
mock_server_instance = MagicMock()
mock_http_server.return_value = mock_server_instance
server.start_server(address, "RUNNING")
mock_thread.start_new_thread.assert_called_once()
# Check that serve_forever was passed to the thread
args = mock_thread.start_new_thread.call_args[0]
self.assertEqual(args[0], mock_server_instance.serve_forever)
@patch('server.HTTPServer')
@patch('server._thread')
def test_start_server_publishes_status(self, mock_thread, mock_http_server):
"""
Test start_server publishes the provided status
"""
address = ("localhost", 8080)
mock_server_instance = MagicMock()
mock_http_server.return_value = mock_server_instance
server.start_server(address, "INITIAL_STATUS")
self.assertEqual(server.server_status, "INITIAL_STATUS")
@patch('server.HTTPConnection')
def test_get_status_makes_http_request(self, mock_http_connection):
"""
Test get_status makes HTTP GET request to root path
"""
address = ("localhost", 8080)
mock_connection = MagicMock()
mock_response = MagicMock()
mock_response.read.return_value = b"TEST_STATUS"
mock_connection.getresponse.return_value = mock_response
mock_http_connection.return_value = mock_connection
result = server.get_status(address)
mock_http_connection.assert_called_once_with("localhost", 8080)
mock_connection.request.assert_called_once_with("GET", "/")
self.assertEqual(result, "TEST_STATUS")
@patch('server.HTTPConnection')
def test_get_status_returns_decoded_response(self, mock_http_connection):
"""
Test get_status returns decoded response string
"""
address = ("localhost", 8080)
mock_connection = MagicMock()
mock_response = MagicMock()
mock_response.read.return_value = b"RUNNING"
mock_connection.getresponse.return_value = mock_response
mock_http_connection.return_value = mock_connection
result = server.get_status(address)
self.assertEqual(result, "RUNNING")
self.assertIsInstance(result, str)
if __name__ == "__main__":
unittest.main()

View File

@@ -9,21 +9,13 @@ Usage:
Assisted By: Claude Code
"""
import base64
import json
import tempfile
import unittest
from pathlib import Path
from unittest.mock import MagicMock, patch
import uuid
import yaml
from krkn.rollback.config import RollbackContent
from krkn.scenario_plugins.service_hijacking.service_hijacking_scenario_plugin import (
ServiceHijackingScenarioPlugin,
)
from krkn.scenario_plugins.service_hijacking.service_hijacking_scenario_plugin import ServiceHijackingScenarioPlugin
class TestServiceHijackingScenarioPlugin(unittest.TestCase):
def setUp(self):
"""
Set up test fixtures for ServiceHijackingScenarioPlugin
@@ -40,374 +32,5 @@ class TestServiceHijackingScenarioPlugin(unittest.TestCase):
self.assertEqual(len(result), 1)
class TestRollbackServiceHijacking(unittest.TestCase):
def test_rollback_service_hijacking(self):
"""
Test rollback functionality for ServiceHijackingScenarioPlugin
"""
# Create rollback data that matches what the plugin expects
rollback_data = {
"service_name": "test-service",
"service_namespace": "default",
"original_selectors": {"app": "original-app"},
"webservice_pod_name": "test-webservice",
}
json_str = json.dumps(rollback_data)
encoded_data = base64.b64encode(json_str.encode("utf-8")).decode("utf-8")
# Create RollbackContent with correct parameters
rollback_content = RollbackContent(
resource_identifier=encoded_data,
namespace="default",
)
# Create a mock KrknTelemetryOpenshift object
mock_lib_telemetry = MagicMock()
mock_lib_kubernetes = MagicMock()
mock_lib_telemetry.get_lib_kubernetes.return_value = mock_lib_kubernetes
# Configure mock to return a successful service restoration
mock_lib_kubernetes.replace_service_selector.return_value = {
"metadata": {"name": "test-service"}
}
mock_lib_kubernetes.delete_pod.return_value = None
# Call the rollback method
ServiceHijackingScenarioPlugin.rollback_service_hijacking(
rollback_content, mock_lib_telemetry
)
# Verify that the correct methods were called
mock_lib_kubernetes.replace_service_selector.assert_called_once_with(
["app=original-app"], "test-service", "default"
)
mock_lib_kubernetes.delete_pod.assert_called_once_with(
"test-webservice", "default"
)
@patch("krkn.scenario_plugins.service_hijacking.service_hijacking_scenario_plugin.logging")
def test_rollback_service_hijacking_invalid_data(self, mock_logging):
"""
Test rollback functionality with invalid rollback content logs error
"""
# Create RollbackContent with invalid base64 data
rollback_content = RollbackContent(
resource_identifier="invalid_base64_data",
namespace="default",
)
# Create a mock KrknTelemetryOpenshift object
mock_lib_telemetry = MagicMock()
# Call the rollback method - should not raise exception but log error
ServiceHijackingScenarioPlugin.rollback_service_hijacking(
rollback_content, mock_lib_telemetry
)
# Verify error was logged to inform operators of rollback failure
mock_logging.error.assert_called_once()
error_message = mock_logging.error.call_args[0][0]
self.assertIn("Failed to rollback service hijacking", error_message)
class TestServiceHijackingRun(unittest.TestCase):
"""Tests for the run method of ServiceHijackingScenarioPlugin"""
def setUp(self):
"""Set up test fixtures - create temporary directory"""
self.temp_dir = tempfile.TemporaryDirectory()
self.tmp_path = Path(self.temp_dir.name)
def tearDown(self):
"""Clean up temporary directory after test"""
self.temp_dir.cleanup()
def _create_scenario_file(self, config=None):
"""Helper to create a temporary scenario YAML file"""
default_config = {
"service_name": "nginx-service",
"service_namespace": "default",
"service_target_port": "http-web-svc",
"image": "quay.io/krkn-chaos/krkn-service-hijacking:v0.1.3",
"chaos_duration": 1, # Use short duration for tests
"privileged": True,
"plan": [
{
"resource": "/test",
"steps": {
"GET": [
{
"duration": 1,
"status": 200,
"mime_type": "application/json",
"payload": '{"status": "ok"}',
}
]
},
}
],
}
if config:
default_config.update(config)
scenario_file = self.tmp_path / "test_scenario.yaml"
with open(scenario_file, "w") as f:
yaml.dump(default_config, f)
return str(scenario_file)
def _create_mocks(self):
"""Helper to create mock objects for testing"""
mock_lib_telemetry = MagicMock()
mock_lib_kubernetes = MagicMock()
mock_lib_telemetry.get_lib_kubernetes.return_value = mock_lib_kubernetes
mock_scenario_telemetry = MagicMock()
return mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry
def test_run_successful(self):
"""Test successful execution of the run method"""
scenario_file = self._create_scenario_file()
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
# Configure mocks for successful execution
mock_lib_kubernetes.service_exists.return_value = True
mock_webservice = MagicMock()
mock_webservice.pod_name = "hijacker-pod"
mock_webservice.selector = "app=hijacker"
mock_lib_kubernetes.deploy_service_hijacking.return_value = mock_webservice
mock_lib_kubernetes.replace_service_selector.return_value = {
"metadata": {"name": "nginx-service"},
"spec": {"selector": {"app": "nginx"}},
}
plugin = ServiceHijackingScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 0)
mock_lib_kubernetes.service_exists.assert_called_once_with(
"nginx-service", "default"
)
mock_lib_kubernetes.deploy_service_hijacking.assert_called_once()
self.assertEqual(mock_lib_kubernetes.replace_service_selector.call_count, 2)
mock_lib_kubernetes.undeploy_service_hijacking.assert_called_once_with(
mock_webservice
)
def test_run_service_not_found(self):
"""Test run method when service does not exist"""
scenario_file = self._create_scenario_file()
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
# Service does not exist
mock_lib_kubernetes.service_exists.return_value = False
plugin = ServiceHijackingScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
assert result == 1
mock_lib_kubernetes.service_exists.assert_called_once_with(
"nginx-service", "default"
)
mock_lib_kubernetes.deploy_service_hijacking.assert_not_called()
def test_run_patch_service_failed(self):
"""Test run method when patching the service fails"""
scenario_file = self._create_scenario_file()
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.service_exists.return_value = True
mock_webservice = MagicMock()
mock_webservice.pod_name = "hijacker-pod"
mock_webservice.selector = "app=hijacker"
mock_lib_kubernetes.deploy_service_hijacking.return_value = mock_webservice
# Patching returns None (failure)
mock_lib_kubernetes.replace_service_selector.return_value = None
plugin = ServiceHijackingScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
assert result == 1
mock_lib_kubernetes.replace_service_selector.assert_called_once()
def test_run_restore_service_failed(self):
"""Test run method when restoring the service fails"""
scenario_file = self._create_scenario_file()
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.service_exists.return_value = True
mock_webservice = MagicMock()
mock_webservice.pod_name = "hijacker-pod"
mock_webservice.selector = "app=hijacker"
mock_lib_kubernetes.deploy_service_hijacking.return_value = mock_webservice
# First call (patch) succeeds, second call (restore) fails
mock_lib_kubernetes.replace_service_selector.side_effect = [
{"metadata": {"name": "nginx-service"}, "spec": {"selector": {"app": "nginx"}}},
None, # Restore fails
]
plugin = ServiceHijackingScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
assert result == 1
assert mock_lib_kubernetes.replace_service_selector.call_count == 2
def test_run_with_numeric_port(self):
"""Test run method with numeric target port"""
scenario_file = self._create_scenario_file(
{"service_target_port": 8080}
)
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.service_exists.return_value = True
mock_webservice = MagicMock()
mock_webservice.pod_name = "hijacker-pod"
mock_webservice.selector = "app=hijacker"
mock_lib_kubernetes.deploy_service_hijacking.return_value = mock_webservice
mock_lib_kubernetes.replace_service_selector.return_value = {
"metadata": {"name": "nginx-service"},
"spec": {"selector": {"app": "nginx"}},
}
plugin = ServiceHijackingScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
assert result == 0
# Verify port_number was passed instead of port_name
call_kwargs = mock_lib_kubernetes.deploy_service_hijacking.call_args
assert call_kwargs[1]["port_number"] == 8080
def test_run_with_named_port(self):
"""Test run method with named target port"""
scenario_file = self._create_scenario_file(
{"service_target_port": "http-web-svc"}
)
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.service_exists.return_value = True
mock_webservice = MagicMock()
mock_webservice.pod_name = "hijacker-pod"
mock_webservice.selector = "app=hijacker"
mock_lib_kubernetes.deploy_service_hijacking.return_value = mock_webservice
mock_lib_kubernetes.replace_service_selector.return_value = {
"metadata": {"name": "nginx-service"},
"spec": {"selector": {"app": "nginx"}},
}
plugin = ServiceHijackingScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
assert result == 0
# Verify port_name was passed instead of port_number
call_kwargs = mock_lib_kubernetes.deploy_service_hijacking.call_args
assert call_kwargs[1]["port_name"] == "http-web-svc"
def test_run_exception_handling(self):
"""Test run method handles exceptions gracefully"""
scenario_file = self._create_scenario_file()
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.service_exists.return_value = True
mock_lib_kubernetes.deploy_service_hijacking.side_effect = Exception(
"Deployment failed"
)
plugin = ServiceHijackingScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
assert result == 1
def test_run_unprivileged_mode(self):
"""Test run method with privileged set to False"""
scenario_file = self._create_scenario_file({"privileged": False})
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.service_exists.return_value = True
mock_webservice = MagicMock()
mock_webservice.pod_name = "hijacker-pod"
mock_webservice.selector = "app=hijacker"
mock_lib_kubernetes.deploy_service_hijacking.return_value = mock_webservice
mock_lib_kubernetes.replace_service_selector.return_value = {
"metadata": {"name": "nginx-service"},
"spec": {"selector": {"app": "nginx"}},
}
plugin = ServiceHijackingScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
assert result == 0
call_kwargs = mock_lib_kubernetes.deploy_service_hijacking.call_args
assert call_kwargs[1]["privileged"] is False
if __name__ == "__main__":
unittest.main()

View File

@@ -10,12 +10,6 @@ Assisted By: Claude Code
"""
import unittest
from unittest.mock import Mock, patch, mock_open
from krkn_lib.k8s import KrknKubernetes
from krkn_lib.telemetry.ocp import KrknTelemetryOpenshift
from krkn_lib.models.telemetry import ScenarioTelemetry
from krkn_lib.models.k8s import AffectedNodeStatus
from krkn.scenario_plugins.shut_down.shut_down_scenario_plugin import ShutDownScenarioPlugin
@@ -27,11 +21,6 @@ class TestShutDownScenarioPlugin(unittest.TestCase):
Set up test fixtures for ShutDownScenarioPlugin
"""
self.plugin = ShutDownScenarioPlugin()
self.mock_kubecli = Mock(spec=KrknKubernetes)
self.mock_lib_telemetry = Mock(spec=KrknTelemetryOpenshift)
self.mock_lib_telemetry.get_lib_kubernetes.return_value = self.mock_kubecli
self.mock_scenario_telemetry = Mock(spec=ScenarioTelemetry)
self.mock_scenario_telemetry.affected_nodes = []
def test_get_scenario_types(self):
"""
@@ -42,456 +31,6 @@ class TestShutDownScenarioPlugin(unittest.TestCase):
self.assertEqual(result, ["cluster_shut_down_scenarios"])
self.assertEqual(len(result), 1)
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.cerberus')
@patch('time.time')
@patch('time.sleep')
@patch('builtins.open', new_callable=mock_open)
def test_run_success_aws(self, mock_file, mock_sleep, mock_time, mock_cerberus):
"""
Test successful run of shut down scenario with AWS cloud type
"""
scenario_yaml = {
"cluster_shut_down_scenario": {
"runs": 1,
"shut_down_duration": 60,
"cloud_type": "aws",
"timeout": 300
}
}
mock_time.side_effect = [1000, 2000]
self.mock_kubecli.list_nodes.return_value = ["node1", "node2"]
with patch('yaml.full_load', return_value=scenario_yaml):
with patch.object(self.plugin, 'cluster_shut_down') as mock_cluster_shutdown:
result = self.plugin.run(
"test-uuid",
"/path/to/scenario.yaml",
{},
self.mock_lib_telemetry,
self.mock_scenario_telemetry
)
self.assertEqual(result, 0)
mock_cluster_shutdown.assert_called_once()
mock_cerberus.publish_kraken_status.assert_called_once()
@patch('logging.error')
@patch('builtins.open', new_callable=mock_open)
def test_run_with_exception(self, mock_file, mock_logging):
"""
Test run handles exceptions and returns 1
"""
mock_file.return_value.__enter__.side_effect = Exception("File read error")
result = self.plugin.run(
"test-uuid",
"/path/to/scenario.yaml",
{},
self.mock_lib_telemetry,
self.mock_scenario_telemetry
)
self.assertEqual(result, 1)
mock_logging.assert_called_once()
logged_message = mock_logging.call_args[0][0]
self.assertIn("File read error", logged_message)
self.assertIn("/path/to/scenario.yaml", logged_message)
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.AWS')
@patch('time.sleep')
@patch('time.time')
def test_cluster_shut_down_aws(self, mock_time, mock_sleep, mock_aws_class):
"""
Test cluster_shut_down with AWS cloud type
"""
shut_down_config = {
"runs": 1,
"shut_down_duration": 60,
"cloud_type": "aws",
"timeout": 300
}
mock_cloud_object = Mock()
mock_aws_class.return_value = mock_cloud_object
mock_cloud_object.get_instance_id.return_value = "i-123"
mock_cloud_object.wait_until_stopped.return_value = True
mock_cloud_object.wait_until_running.return_value = True
self.mock_kubecli.list_nodes.return_value = ["node1", "node2"]
affected_nodes_status = AffectedNodeStatus()
mock_time.return_value = 1000
with patch.object(self.plugin, 'multiprocess_nodes') as mock_multiprocess:
self.plugin.cluster_shut_down(shut_down_config, self.mock_kubecli, affected_nodes_status)
mock_aws_class.assert_called_once()
self.assertEqual(mock_multiprocess.call_count, 2)
self.assertEqual(len(affected_nodes_status.affected_nodes), 2)
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.GCP')
@patch('time.sleep')
@patch('time.time')
def test_cluster_shut_down_gcp(self, mock_time, mock_sleep, mock_gcp_class):
"""
Test cluster_shut_down with GCP cloud type
"""
shut_down_config = {
"runs": 1,
"shut_down_duration": 30,
"cloud_type": "gcp",
"timeout": 300
}
mock_cloud_object = Mock()
mock_gcp_class.return_value = mock_cloud_object
mock_cloud_object.get_instance_id.side_effect = ["gcp-1", "gcp-2"]
mock_cloud_object.wait_until_stopped.return_value = True
mock_cloud_object.wait_until_running.return_value = True
self.mock_kubecli.list_nodes.return_value = ["node1", "node2"]
affected_nodes_status = AffectedNodeStatus()
mock_time.return_value = 1000
with patch.object(self.plugin, 'multiprocess_nodes') as mock_multiprocess:
self.plugin.cluster_shut_down(shut_down_config, self.mock_kubecli, affected_nodes_status)
mock_gcp_class.assert_called_once()
# Verify that the 'processes' parameter is set to 1 for GCP cloud type
calls = mock_multiprocess.call_args_list
for call_args in calls:
self.assertEqual(call_args[0][2], 1)
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.Azure')
@patch('time.sleep')
@patch('time.time')
def test_cluster_shut_down_azure(self, mock_time, mock_sleep, mock_azure_class):
"""
Test cluster_shut_down with Azure cloud type
"""
shut_down_config = {
"runs": 1,
"shut_down_duration": 45,
"cloud_type": "azure",
"timeout": 300
}
mock_cloud_object = Mock()
mock_azure_class.return_value = mock_cloud_object
mock_cloud_object.get_instance_id.side_effect = ["azure-1"]
mock_cloud_object.wait_until_stopped.return_value = True
mock_cloud_object.wait_until_running.return_value = True
self.mock_kubecli.list_nodes.return_value = ["node1"]
affected_nodes_status = AffectedNodeStatus()
mock_time.return_value = 1000
with patch.object(self.plugin, 'multiprocess_nodes'):
self.plugin.cluster_shut_down(shut_down_config, self.mock_kubecli, affected_nodes_status)
mock_azure_class.assert_called_once()
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.Azure')
@patch('time.sleep')
@patch('time.time')
def test_cluster_shut_down_az_alias(self, mock_time, mock_sleep, mock_azure_class):
"""
Test cluster_shut_down with 'az' cloud type alias for Azure
"""
shut_down_config = {
"runs": 1,
"shut_down_duration": 30,
"cloud_type": "az",
"timeout": 300
}
mock_cloud_object = Mock()
mock_azure_class.return_value = mock_cloud_object
mock_cloud_object.get_instance_id.side_effect = ["azure-1"]
mock_cloud_object.wait_until_stopped.return_value = True
mock_cloud_object.wait_until_running.return_value = True
self.mock_kubecli.list_nodes.return_value = ["node1"]
affected_nodes_status = AffectedNodeStatus()
mock_time.return_value = 1000
with patch.object(self.plugin, 'multiprocess_nodes'):
self.plugin.cluster_shut_down(shut_down_config, self.mock_kubecli, affected_nodes_status)
mock_azure_class.assert_called_once()
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.OPENSTACKCLOUD')
@patch('time.sleep')
@patch('time.time')
def test_cluster_shut_down_openstack(self, mock_time, mock_sleep, mock_openstack_class):
"""
Test cluster_shut_down with OpenStack cloud type
"""
shut_down_config = {
"runs": 1,
"shut_down_duration": 60,
"cloud_type": "openstack",
"timeout": 300
}
mock_cloud_object = Mock()
mock_openstack_class.return_value = mock_cloud_object
mock_cloud_object.get_instance_id.side_effect = ["os-1"]
mock_cloud_object.wait_until_stopped.return_value = True
mock_cloud_object.wait_until_running.return_value = True
self.mock_kubecli.list_nodes.return_value = ["node1"]
affected_nodes_status = AffectedNodeStatus()
mock_time.return_value = 1000
with patch.object(self.plugin, 'multiprocess_nodes'):
self.plugin.cluster_shut_down(shut_down_config, self.mock_kubecli, affected_nodes_status)
mock_openstack_class.assert_called_once()
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.IbmCloud')
@patch('time.sleep')
@patch('time.time')
def test_cluster_shut_down_ibm(self, mock_time, mock_sleep, mock_ibm_class):
"""
Test cluster_shut_down with IBM cloud type
"""
shut_down_config = {
"runs": 1,
"shut_down_duration": 60,
"cloud_type": "ibm",
"timeout": 300
}
mock_cloud_object = Mock()
mock_ibm_class.return_value = mock_cloud_object
mock_cloud_object.get_instance_id.side_effect = ["ibm-1"]
mock_cloud_object.wait_until_stopped.return_value = True
mock_cloud_object.wait_until_running.return_value = True
self.mock_kubecli.list_nodes.return_value = ["node1"]
affected_nodes_status = AffectedNodeStatus()
mock_time.return_value = 1000
with patch.object(self.plugin, 'multiprocess_nodes'):
self.plugin.cluster_shut_down(shut_down_config, self.mock_kubecli, affected_nodes_status)
mock_ibm_class.assert_called_once()
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.IbmCloud')
@patch('time.sleep')
@patch('time.time')
def test_cluster_shut_down_ibmcloud_alias(self, mock_time, mock_sleep, mock_ibm_class):
"""
Test cluster_shut_down with 'ibmcloud' cloud type alias
"""
shut_down_config = {
"runs": 1,
"shut_down_duration": 60,
"cloud_type": "ibmcloud",
"timeout": 300
}
mock_cloud_object = Mock()
mock_ibm_class.return_value = mock_cloud_object
mock_cloud_object.get_instance_id.side_effect = ["ibm-1"]
mock_cloud_object.wait_until_stopped.return_value = True
mock_cloud_object.wait_until_running.return_value = True
self.mock_kubecli.list_nodes.return_value = ["node1"]
affected_nodes_status = AffectedNodeStatus()
mock_time.return_value = 1000
with patch.object(self.plugin, 'multiprocess_nodes'):
self.plugin.cluster_shut_down(shut_down_config, self.mock_kubecli, affected_nodes_status)
mock_ibm_class.assert_called_once()
@patch('logging.error')
def test_cluster_shut_down_unsupported_cloud(self, mock_logging):
"""
Test cluster_shut_down raises exception for unsupported cloud type
"""
shut_down_config = {
"runs": 1,
"shut_down_duration": 60,
"cloud_type": "unsupported",
"timeout": 300
}
affected_nodes_status = AffectedNodeStatus()
with self.assertRaises(RuntimeError):
self.plugin.cluster_shut_down(shut_down_config, self.mock_kubecli, affected_nodes_status)
mock_logging.assert_called()
logged_message = mock_logging.call_args[0][0]
self.assertIn("not currently supported", logged_message)
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.AWS')
@patch('time.sleep')
@patch('time.time')
def test_cluster_shut_down_multiple_runs(self, mock_time, mock_sleep, mock_aws_class):
"""
Test cluster_shut_down with multiple runs
"""
shut_down_config = {
"runs": 2,
"shut_down_duration": 30,
"cloud_type": "aws",
"timeout": 300
}
mock_cloud_object = Mock()
mock_aws_class.return_value = mock_cloud_object
mock_cloud_object.get_instance_id.return_value = "i-123"
mock_cloud_object.wait_until_stopped.return_value = True
mock_cloud_object.wait_until_running.return_value = True
self.mock_kubecli.list_nodes.return_value = ["node1"]
affected_nodes_status = AffectedNodeStatus()
mock_time.return_value = 1000
with patch.object(self.plugin, 'multiprocess_nodes') as mock_multiprocess:
self.plugin.cluster_shut_down(shut_down_config, self.mock_kubecli, affected_nodes_status)
# Each run should call multiprocess_nodes twice (stop and start)
self.assertEqual(mock_multiprocess.call_count, 4)
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.ThreadPool')
def test_multiprocess_nodes_simple_list(self, mock_threadpool):
"""
Test multiprocess_nodes with simple list of nodes
"""
mock_pool_instance = Mock()
mock_threadpool.return_value = mock_pool_instance
nodes = ["node1", "node2", "node3"]
mock_cloud_function = Mock()
self.plugin.multiprocess_nodes(mock_cloud_function, nodes, processes=0)
mock_threadpool.assert_called_once_with(processes=3)
mock_pool_instance.map.assert_called_once_with(mock_cloud_function, nodes)
mock_pool_instance.close.assert_called_once()
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.ThreadPool')
def test_multiprocess_nodes_with_custom_processes(self, mock_threadpool):
"""
Test multiprocess_nodes with custom process count
"""
mock_pool_instance = Mock()
mock_threadpool.return_value = mock_pool_instance
nodes = ["node1", "node2", "node3", "node4"]
mock_cloud_function = Mock()
self.plugin.multiprocess_nodes(mock_cloud_function, nodes, processes=2)
mock_threadpool.assert_called_once_with(processes=2)
mock_pool_instance.map.assert_called_once_with(mock_cloud_function, nodes)
mock_pool_instance.close.assert_called_once()
@patch('logging.info')
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.ThreadPool')
def test_multiprocess_nodes_tuple_list(self, mock_threadpool, mock_logging):
"""
Test multiprocess_nodes with tuple list (node_info, node_id pairs)
"""
mock_pool_instance = Mock()
mock_threadpool.return_value = mock_pool_instance
nodes = [("info1", "id1"), ("info2", "id2")]
mock_cloud_function = Mock()
self.plugin.multiprocess_nodes(mock_cloud_function, nodes, processes=0)
mock_threadpool.assert_called_once_with(processes=2)
mock_pool_instance.starmap.assert_called_once()
# Verify starmap was called with zipped arguments
call_args = mock_pool_instance.starmap.call_args[0]
self.assertEqual(call_args[0], mock_cloud_function)
mock_pool_instance.close.assert_called_once()
@patch('logging.info')
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.ThreadPool')
def test_multiprocess_nodes_with_exception(self, mock_threadpool, mock_logging):
"""
Test multiprocess_nodes handles exceptions gracefully
"""
mock_threadpool.side_effect = Exception("Pool creation error")
nodes = ["node1", "node2"]
mock_cloud_function = Mock()
self.plugin.multiprocess_nodes(mock_cloud_function, nodes, processes=0)
mock_logging.assert_called()
logged_args, logged_kwargs = mock_logging.call_args
self.assertIn("Error on pool multiprocessing", logged_args[0])
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.AWS')
@patch('time.sleep')
@patch('time.time')
def test_cluster_shut_down_node_stop_timing(self, mock_time, mock_sleep, mock_aws_class):
"""
Test that cloud_stopping_time is set correctly
"""
shut_down_config = {
"runs": 1,
"shut_down_duration": 60,
"cloud_type": "aws",
"timeout": 300
}
mock_cloud_object = Mock()
mock_aws_class.return_value = mock_cloud_object
mock_cloud_object.get_instance_id.return_value = "i-123"
mock_cloud_object.wait_until_stopped.return_value = True
mock_cloud_object.wait_until_running.return_value = True
self.mock_kubecli.list_nodes.return_value = ["node1"]
affected_nodes_status = AffectedNodeStatus()
# Simulate time progression - provide enough values for all time.time() calls
mock_time.side_effect = [1000, 1050, 1100, 1150, 1200]
with patch.object(self.plugin, 'multiprocess_nodes'):
self.plugin.cluster_shut_down(shut_down_config, self.mock_kubecli, affected_nodes_status)
# Verify affected node was created
self.assertEqual(len(affected_nodes_status.affected_nodes), 1)
@patch('krkn.scenario_plugins.shut_down.shut_down_scenario_plugin.AWS')
@patch('time.sleep')
@patch('time.time')
def test_cluster_shut_down_wait_for_initialization(self, mock_time, mock_sleep, mock_aws_class):
"""
Test that cluster_shut_down waits 150s for component initialization
"""
shut_down_config = {
"runs": 1,
"shut_down_duration": 60,
"cloud_type": "aws",
"timeout": 300
}
mock_cloud_object = Mock()
mock_aws_class.return_value = mock_cloud_object
mock_cloud_object.get_instance_id.return_value = "i-123"
mock_cloud_object.wait_until_stopped.return_value = True
mock_cloud_object.wait_until_running.return_value = True
self.mock_kubecli.list_nodes.return_value = ["node1"]
affected_nodes_status = AffectedNodeStatus()
mock_time.return_value = 1000
with patch.object(self.plugin, 'multiprocess_nodes'):
self.plugin.cluster_shut_down(shut_down_config, self.mock_kubecli, affected_nodes_status)
# Verify sleep was called with correct durations
sleep_calls = [call_args[0][0] for call_args in mock_sleep.call_args_list]
self.assertIn(60, sleep_calls) # shut_down_duration
self.assertIn(150, sleep_calls) # component initialization wait
if __name__ == "__main__":
unittest.main()

View File

@@ -9,13 +9,8 @@ Usage:
Assisted By: Claude Code
"""
import base64
import json
import unittest
import uuid
from unittest.mock import MagicMock
from krkn.rollback.config import RollbackContent
from krkn.scenario_plugins.syn_flood.syn_flood_scenario_plugin import SynFloodScenarioPlugin
@@ -36,488 +31,6 @@ class TestSynFloodScenarioPlugin(unittest.TestCase):
self.assertEqual(result, ["syn_flood_scenarios"])
self.assertEqual(len(result), 1)
def test_check_key_value(self):
"""
Test check_key_value method
"""
test_dict = {
"valid_key": "value",
"empty_key": "",
"none_key": None,
"zero_key": 0,
"false_key": False,
}
self.assertTrue(self.plugin.check_key_value(test_dict, "valid_key"))
self.assertFalse(self.plugin.check_key_value(test_dict, "empty_key"))
self.assertFalse(self.plugin.check_key_value(test_dict, "none_key"))
self.assertFalse(self.plugin.check_key_value(test_dict, "missing_key"))
# 0 and False are valid values
self.assertTrue(self.plugin.check_key_value(test_dict, "zero_key"))
self.assertTrue(self.plugin.check_key_value(test_dict, "false_key"))
class TestIsNodeAffinityCorrect(unittest.TestCase):
"""Tests for is_node_affinity_correct method"""
def setUp(self):
self.plugin = SynFloodScenarioPlugin()
def test_valid_node_affinity(self):
"""Test valid node affinity configuration"""
valid_affinity = {
"node-role.kubernetes.io/worker": [""],
}
self.assertTrue(self.plugin.is_node_affinity_correct(valid_affinity))
def test_valid_node_affinity_multiple_labels(self):
"""Test valid node affinity with multiple labels"""
valid_affinity = {
"node-role.kubernetes.io/worker": ["value1", "value2"],
"topology.kubernetes.io/zone": ["us-east-1a"],
}
self.assertTrue(self.plugin.is_node_affinity_correct(valid_affinity))
def test_empty_dict_is_valid(self):
"""Test empty dict is valid for node affinity"""
self.assertTrue(self.plugin.is_node_affinity_correct({}))
def test_invalid_not_a_dict(self):
"""Test non-dict input is invalid"""
self.assertFalse(self.plugin.is_node_affinity_correct("not a dict"))
self.assertFalse(self.plugin.is_node_affinity_correct(["list"]))
self.assertFalse(self.plugin.is_node_affinity_correct(123))
self.assertFalse(self.plugin.is_node_affinity_correct(None))
def test_invalid_non_string_key(self):
"""Test non-string keys are invalid"""
invalid_affinity = {
123: ["value"],
}
self.assertFalse(self.plugin.is_node_affinity_correct(invalid_affinity))
def test_invalid_non_list_value(self):
"""Test non-list values are invalid"""
invalid_affinity = {
"node-role.kubernetes.io/worker": "not a list",
}
self.assertFalse(self.plugin.is_node_affinity_correct(invalid_affinity))
class TestParseConfig(unittest.TestCase):
"""Tests for parse_config method"""
def setUp(self):
self.plugin = SynFloodScenarioPlugin()
def _create_scenario_file(self, tmp_path, config=None):
"""Helper to create a temporary scenario YAML file"""
import yaml
default_config = {
"packet-size": 120,
"window-size": 64,
"duration": 10,
"namespace": "default",
"target-service": "elasticsearch",
"target-port": 9200,
"target-service-label": "",
"number-of-pods": 2,
"image": "quay.io/krkn-chaos/krkn-syn-flood:v1.0.0",
"attacker-nodes": {"node-role.kubernetes.io/worker": [""]},
}
if config:
default_config.update(config)
scenario_file = tmp_path / "test_scenario.yaml"
with open(scenario_file, "w") as f:
yaml.dump(default_config, f)
return str(scenario_file)
def test_parse_config_valid(self, tmp_path=None):
"""Test parsing valid configuration"""
import tempfile
from pathlib import Path
with tempfile.TemporaryDirectory() as tmp_dir:
scenario_file = self._create_scenario_file(Path(tmp_dir))
config = self.plugin.parse_config(scenario_file)
assert config["packet-size"] == 120
assert config["window-size"] == 64
assert config["duration"] == 10
assert config["namespace"] == "default"
assert config["target-service"] == "elasticsearch"
assert config["target-port"] == 9200
assert config["number-of-pods"] == 2
def test_parse_config_file_not_found(self):
"""Test parsing non-existent file raises exception"""
with self.assertRaises(Exception) as context:
self.plugin.parse_config("/nonexistent/path/scenario.yaml")
self.assertIn("failed to load scenario file", str(context.exception))
def test_parse_config_missing_required_params(self):
"""Test parsing config with missing required parameters"""
import tempfile
from pathlib import Path
with tempfile.TemporaryDirectory() as tmp_dir:
# Missing packet-size and window-size
scenario_file = self._create_scenario_file(
Path(tmp_dir),
{"packet-size": "", "window-size": None},
)
with self.assertRaises(Exception) as context:
self.plugin.parse_config(scenario_file)
self.assertIn("packet-size", str(context.exception))
self.assertIn("window-size", str(context.exception))
def test_parse_config_both_target_service_and_label(self):
"""Test parsing config with both target-service and target-service-label set"""
import tempfile
from pathlib import Path
with tempfile.TemporaryDirectory() as tmp_dir:
scenario_file = self._create_scenario_file(
Path(tmp_dir),
{
"target-service": "elasticsearch",
"target-service-label": "app=elasticsearch",
},
)
with self.assertRaises(Exception) as context:
self.plugin.parse_config(scenario_file)
self.assertIn(
"you cannot select both target-service and target-service-label",
str(context.exception),
)
def test_parse_config_neither_target_service_nor_label(self):
"""Test parsing config with neither target-service nor target-service-label set"""
import tempfile
from pathlib import Path
with tempfile.TemporaryDirectory() as tmp_dir:
scenario_file = self._create_scenario_file(
Path(tmp_dir),
{"target-service": "", "target-service-label": ""},
)
with self.assertRaises(Exception) as context:
self.plugin.parse_config(scenario_file)
self.assertIn(
"you have either to set a target service or a label",
str(context.exception),
)
def test_parse_config_invalid_attacker_nodes(self):
"""Test parsing config with invalid attacker-nodes format"""
import tempfile
from pathlib import Path
with tempfile.TemporaryDirectory() as tmp_dir:
scenario_file = self._create_scenario_file(
Path(tmp_dir),
{"attacker-nodes": "invalid"},
)
with self.assertRaises(Exception) as context:
self.plugin.parse_config(scenario_file)
self.assertIn("attacker-nodes format is not correct", str(context.exception))
def test_parse_config_with_label_selector(self):
"""Test parsing config with target-service-label instead of target-service"""
import tempfile
from pathlib import Path
with tempfile.TemporaryDirectory() as tmp_dir:
scenario_file = self._create_scenario_file(
Path(tmp_dir),
{"target-service": "", "target-service-label": "app=elasticsearch"},
)
config = self.plugin.parse_config(scenario_file)
assert config["target-service-label"] == "app=elasticsearch"
assert config["target-service"] == ""
class TestSynFloodRun(unittest.TestCase):
"""Tests for the run method of SynFloodScenarioPlugin"""
def _create_scenario_file(self, tmp_path, config=None):
"""Helper to create a temporary scenario YAML file"""
import yaml
from pathlib import Path
default_config = {
"packet-size": 120,
"window-size": 64,
"duration": 1,
"namespace": "default",
"target-service": "elasticsearch",
"target-port": 9200,
"target-service-label": "",
"number-of-pods": 1,
"image": "quay.io/krkn-chaos/krkn-syn-flood:v1.0.0",
"attacker-nodes": {"node-role.kubernetes.io/worker": [""]},
}
if config:
default_config.update(config)
scenario_file = Path(tmp_path) / "test_scenario.yaml"
with open(scenario_file, "w") as f:
yaml.dump(default_config, f)
return str(scenario_file)
def _create_mocks(self):
"""Helper to create mock objects for testing"""
mock_lib_telemetry = MagicMock()
mock_lib_kubernetes = MagicMock()
mock_lib_telemetry.get_lib_kubernetes.return_value = mock_lib_kubernetes
mock_scenario_telemetry = MagicMock()
return mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry
def test_run_successful_with_target_service(self):
"""Test successful execution with target-service"""
import tempfile
with tempfile.TemporaryDirectory() as tmp_dir:
scenario_file = self._create_scenario_file(tmp_dir)
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.service_exists.return_value = True
# Pod finishes immediately
mock_lib_kubernetes.is_pod_running.return_value = False
plugin = SynFloodScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 0)
mock_lib_kubernetes.service_exists.assert_called_once_with(
"elasticsearch", "default"
)
mock_lib_kubernetes.deploy_syn_flood.assert_called_once()
def test_run_successful_with_label_selector(self):
"""Test successful execution with target-service-label"""
import tempfile
with tempfile.TemporaryDirectory() as tmp_dir:
scenario_file = self._create_scenario_file(
tmp_dir,
{"target-service": "", "target-service-label": "app=elasticsearch"},
)
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.select_service_by_label.return_value = [
"elasticsearch-1",
"elasticsearch-2",
]
mock_lib_kubernetes.service_exists.return_value = True
mock_lib_kubernetes.is_pod_running.return_value = False
plugin = SynFloodScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 0)
mock_lib_kubernetes.select_service_by_label.assert_called_once_with(
"default", "app=elasticsearch"
)
# Should deploy pods for each service found
self.assertEqual(mock_lib_kubernetes.deploy_syn_flood.call_count, 2)
def test_run_service_not_found(self):
"""Test run method when service does not exist"""
import tempfile
with tempfile.TemporaryDirectory() as tmp_dir:
scenario_file = self._create_scenario_file(tmp_dir)
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.service_exists.return_value = False
plugin = SynFloodScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 1)
mock_lib_kubernetes.deploy_syn_flood.assert_not_called()
def test_run_multiple_pods(self):
"""Test run method with multiple attacker pods"""
import tempfile
with tempfile.TemporaryDirectory() as tmp_dir:
scenario_file = self._create_scenario_file(tmp_dir, {"number-of-pods": 3})
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.service_exists.return_value = True
mock_lib_kubernetes.is_pod_running.return_value = False
plugin = SynFloodScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 0)
self.assertEqual(mock_lib_kubernetes.deploy_syn_flood.call_count, 3)
def test_run_exception_handling(self):
"""Test run method handles exceptions gracefully"""
import tempfile
with tempfile.TemporaryDirectory() as tmp_dir:
scenario_file = self._create_scenario_file(tmp_dir)
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.service_exists.return_value = True
mock_lib_kubernetes.deploy_syn_flood.side_effect = Exception("Deployment failed")
plugin = SynFloodScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 1)
def test_run_waits_for_pods_to_finish(self):
"""Test run method waits for pods to finish"""
import tempfile
with tempfile.TemporaryDirectory() as tmp_dir:
scenario_file = self._create_scenario_file(tmp_dir)
mock_lib_telemetry, mock_lib_kubernetes, mock_scenario_telemetry = (
self._create_mocks()
)
mock_lib_kubernetes.service_exists.return_value = True
# Pod runs for a few iterations then finishes
mock_lib_kubernetes.is_pod_running.side_effect = [True, True, False]
plugin = SynFloodScenarioPlugin()
result = plugin.run(
run_uuid=str(uuid.uuid4()),
scenario=scenario_file,
krkn_config={},
lib_telemetry=mock_lib_telemetry,
scenario_telemetry=mock_scenario_telemetry,
)
self.assertEqual(result, 0)
# Should have checked pod status multiple times
self.assertGreaterEqual(mock_lib_kubernetes.is_pod_running.call_count, 1)
class TestRollbackSynFloodPods(unittest.TestCase):
"""Tests for rollback_syn_flood_pods static method"""
def test_rollback_syn_flood_pods_successful(self):
"""Test successful rollback of syn flood pods"""
pod_names = ["syn-flood-abc123", "syn-flood-def456"]
encoded_data = base64.b64encode(
json.dumps(pod_names).encode("utf-8")
).decode("utf-8")
rollback_content = RollbackContent(
resource_identifier=encoded_data,
namespace="default",
)
mock_lib_telemetry = MagicMock()
mock_lib_kubernetes = MagicMock()
mock_lib_telemetry.get_lib_kubernetes.return_value = mock_lib_kubernetes
SynFloodScenarioPlugin.rollback_syn_flood_pods(
rollback_content, mock_lib_telemetry
)
assert mock_lib_kubernetes.delete_pod.call_count == 2
mock_lib_kubernetes.delete_pod.assert_any_call("syn-flood-abc123", "default")
mock_lib_kubernetes.delete_pod.assert_any_call("syn-flood-def456", "default")
def test_rollback_syn_flood_pods_empty_list(self):
"""Test rollback with empty pod list"""
pod_names = []
encoded_data = base64.b64encode(
json.dumps(pod_names).encode("utf-8")
).decode("utf-8")
rollback_content = RollbackContent(
resource_identifier=encoded_data,
namespace="default",
)
mock_lib_telemetry = MagicMock()
mock_lib_kubernetes = MagicMock()
mock_lib_telemetry.get_lib_kubernetes.return_value = mock_lib_kubernetes
SynFloodScenarioPlugin.rollback_syn_flood_pods(
rollback_content, mock_lib_telemetry
)
mock_lib_kubernetes.delete_pod.assert_not_called()
def test_rollback_syn_flood_pods_invalid_data(self):
"""Test rollback with invalid encoded data handles error gracefully"""
rollback_content = RollbackContent(
resource_identifier="invalid_base64_data",
namespace="default",
)
mock_lib_telemetry = MagicMock()
mock_lib_kubernetes = MagicMock()
mock_lib_telemetry.get_lib_kubernetes.return_value = mock_lib_kubernetes
# Should not raise exception, just log error
with self.assertLogs(level='ERROR') as log_context:
SynFloodScenarioPlugin.rollback_syn_flood_pods(
rollback_content, mock_lib_telemetry
)
# Verify error was logged
self.assertTrue(any('error' in log.lower() for log in log_context.output))
# Verify delete_pod was not called due to invalid data
mock_lib_kubernetes.delete_pod.assert_not_called()
if __name__ == "__main__":
unittest.main()

View File

@@ -1,31 +0,0 @@
# ⚠️ DEPRECATED
This directory is **no longer actively maintained** and will not accept new changes.
## Migration Notice
All development efforts have been moved to:
**[github.com/krkn-chaos/krkn-ai](https://github.com/krkn-chaos/krkn-ai)**
## What This Means
- ❌ No new features will be added here
- ❌ Bug fixes will not be accepted
- ❌ Pull requests will be closed and redirected
- Existing code remains for historical reference only
## Next Steps
If you're looking to:
- **Use** chaos engineering AI features → Visit [krkn-chaos/krkn-ai](https://github.com/krkn-chaos/krkn-ai)
- **Contribute** improvements → Submit to [krkn-chaos/krkn-ai](https://github.com/krkn-chaos/krkn-ai)
- **Report issues** → Open issues at [krkn-chaos/krkn-ai](https://github.com/krkn-chaos/krkn-ai/issues)
## Questions?
Please visit the new repository for documentation, examples, and community support.
---
**Last Updated:** January 2026

View File

@@ -0,0 +1,304 @@
# OpenShift Shenanigans
## Workflow Description
Given a target OpenShift cluster, this workflow executes a
[kube-burner plugin](https://github.com/redhat-performance/arcaflow-plugin-kube-burner)
workflow to place a load on the cluster, repeatedly removes a targeted pod at a given time frequency with the [kill-pod plugin](https://github.com/krkn-chaos/arcaflow-plugin-kill-pod),
and runs a [stress-ng](https://github.com/ColinIanKing/stress-ng) CPU workload on the cluster.
Target your OpenShift cluster with the appropriate `kubeconfig` file, and add its file path as
the value for `kubernetes_target.kubeconfig_path`, in the input file. Any combination of subworkflows can be disabled in the input file by setting either `cpu_hog_enabled`, `pod_chaos_enabled`, or `kubeburner_enabled` to `false`.
## Files
- [`workflow.yaml`](workflow.yaml) -- Defines the workflow input schema, the plugins to run
and their data relationships, and the output to present to the user
- [`input.yaml`](input.yaml) -- The input parameters that the user provides for running
the workflow
- [`config.yaml`](config.yaml) -- Global config parameters that are passed to the Arcaflow
engine
- [`cpu-hog.yaml`](subworkflows/cpu-hog.yaml) -- The StressNG workload on the CPU.
- [`kubeburner.yaml`](subworkflows/kubeburner.yaml) -- The KubeBurner workload for the Kubernetes Cluster API.
- [`pod-chaos.yaml`](subworkflows/pod-chaos.yaml) -- The Kill Pod workflow for the Kubernetes infrastructure pods.
## Running the Workflow
### Workflow Dependencies
Install Python, at least `3.9`.
First, add the path to your Python interpreter to `config.yaml` as the value
for `pythonPath` as shown here. A common choice for users working in
distributions of Linux operating systems is `usr/bin/python`. Second, add a
directory to which your Arcaflow process will have write access as the
value for `workdir`, `/tmp` is a common choice because your process will likely be able to write to it.
```yaml
deployers:
python:
pythonPath: /usr/bin/python
workdir: /tmp
```
To use this Python interpreter with our `kill-pod` plugin, go to the `deploy` section of the `kill_pod` step in [`pod-chaos.yaml`](subworkflows/pod-chaos.yaml). You can use the same `pythonPath` and `workdir` that you used in
your `config.yaml`.
```yaml
deploy:
deployer_name: python
modulePullPolicy: Always
pythonPath: /usr/bin/python
workdir: /tmp
```
Download a Go binary of the latest version of the Arcaflow engine from: https://github.com/arcalot/arcaflow-engine/releases.
#### OpenShift Target
Target your desired OpenShift cluster by setting the `kubeconfig_path` variable for each subworkflow's parameter list in [`input.yaml`](input.yaml).
#### Kube-Burner Plugin
The `kube-burner` plugin generates and reports the UUID to which the
`kube-burner` data is associated in your search database. The `uuidgen`
workflow step uses the `arcaflow-plugin-utilities` `uuid` plugin step to
randomly generate a UUID for you.
### Workflow Execution
Run the workflow:
```
$ export WFPATH=<path to this workflow directory>
$ arcaflow --context ${WFPATH} --input input.yaml --config config.yaml --workflow workflow.yaml
```
## Workflow Diagram
This diagram shows the complete end-to-end workflow logic.
### Main Workflow
```mermaid
%% Mermaid markdown workflow
flowchart LR
%% Success path
input-->steps.cpu_hog_wf.enabling
input-->steps.cpu_hog_wf.execute
input-->steps.kubeburner_wf.enabling
input-->steps.kubeburner_wf.execute
input-->steps.pod_chaos_wf.enabling
input-->steps.pod_chaos_wf.execute
outputs.workflow_success.cpu_hog-->outputs.workflow_success
outputs.workflow_success.cpu_hog.disabled-->outputs.workflow_success.cpu_hog
outputs.workflow_success.cpu_hog.enabled-->outputs.workflow_success.cpu_hog
outputs.workflow_success.kubeburner-->outputs.workflow_success
outputs.workflow_success.kubeburner.disabled-->outputs.workflow_success.kubeburner
outputs.workflow_success.kubeburner.enabled-->outputs.workflow_success.kubeburner
outputs.workflow_success.pod_chaos-->outputs.workflow_success
outputs.workflow_success.pod_chaos.disabled-->outputs.workflow_success.pod_chaos
outputs.workflow_success.pod_chaos.enabled-->outputs.workflow_success.pod_chaos
steps.cpu_hog_wf.closed-->steps.cpu_hog_wf.closed.result
steps.cpu_hog_wf.disabled-->steps.cpu_hog_wf.disabled.output
steps.cpu_hog_wf.disabled.output-->outputs.workflow_success.cpu_hog.disabled
steps.cpu_hog_wf.enabling-->steps.cpu_hog_wf.closed
steps.cpu_hog_wf.enabling-->steps.cpu_hog_wf.disabled
steps.cpu_hog_wf.enabling-->steps.cpu_hog_wf.enabling.resolved
steps.cpu_hog_wf.enabling-->steps.cpu_hog_wf.execute
steps.cpu_hog_wf.execute-->steps.cpu_hog_wf.outputs
steps.cpu_hog_wf.outputs-->steps.cpu_hog_wf.outputs.success
steps.cpu_hog_wf.outputs.success-->outputs.workflow_success.cpu_hog.enabled
steps.kubeburner_wf.closed-->steps.kubeburner_wf.closed.result
steps.kubeburner_wf.disabled-->steps.kubeburner_wf.disabled.output
steps.kubeburner_wf.disabled.output-->outputs.workflow_success.kubeburner.disabled
steps.kubeburner_wf.enabling-->steps.kubeburner_wf.closed
steps.kubeburner_wf.enabling-->steps.kubeburner_wf.disabled
steps.kubeburner_wf.enabling-->steps.kubeburner_wf.enabling.resolved
steps.kubeburner_wf.enabling-->steps.kubeburner_wf.execute
steps.kubeburner_wf.execute-->steps.kubeburner_wf.outputs
steps.kubeburner_wf.outputs-->steps.kubeburner_wf.outputs.success
steps.kubeburner_wf.outputs.success-->outputs.workflow_success.kubeburner.enabled
steps.pod_chaos_wf.closed-->steps.pod_chaos_wf.closed.result
steps.pod_chaos_wf.disabled-->steps.pod_chaos_wf.disabled.output
steps.pod_chaos_wf.disabled.output-->outputs.workflow_success.pod_chaos.disabled
steps.pod_chaos_wf.enabling-->steps.pod_chaos_wf.closed
steps.pod_chaos_wf.enabling-->steps.pod_chaos_wf.disabled
steps.pod_chaos_wf.enabling-->steps.pod_chaos_wf.enabling.resolved
steps.pod_chaos_wf.enabling-->steps.pod_chaos_wf.execute
steps.pod_chaos_wf.execute-->steps.pod_chaos_wf.outputs
steps.pod_chaos_wf.outputs-->steps.pod_chaos_wf.outputs.success
steps.pod_chaos_wf.outputs.success-->outputs.workflow_success.pod_chaos.enabled
%% Error path
steps.cpu_hog_wf.execute-->steps.cpu_hog_wf.failed
steps.cpu_hog_wf.failed-->steps.cpu_hog_wf.failed.error
steps.kubeburner_wf.execute-->steps.kubeburner_wf.failed
steps.kubeburner_wf.failed-->steps.kubeburner_wf.failed.error
steps.pod_chaos_wf.execute-->steps.pod_chaos_wf.failed
steps.pod_chaos_wf.failed-->steps.pod_chaos_wf.failed.error
%% Mermaid end
```
### Pod Chaos Workflow
```mermaid
%% Mermaid markdown workflow
flowchart LR
%% Success path
input-->steps.kill_pod.starting
steps.kill_pod.cancelled-->steps.kill_pod.closed
steps.kill_pod.cancelled-->steps.kill_pod.outputs
steps.kill_pod.closed-->steps.kill_pod.closed.result
steps.kill_pod.deploy-->steps.kill_pod.closed
steps.kill_pod.deploy-->steps.kill_pod.starting
steps.kill_pod.disabled-->steps.kill_pod.disabled.output
steps.kill_pod.enabling-->steps.kill_pod.closed
steps.kill_pod.enabling-->steps.kill_pod.disabled
steps.kill_pod.enabling-->steps.kill_pod.enabling.resolved
steps.kill_pod.enabling-->steps.kill_pod.starting
steps.kill_pod.outputs-->steps.kill_pod.outputs.success
steps.kill_pod.outputs.success-->outputs.success
steps.kill_pod.running-->steps.kill_pod.closed
steps.kill_pod.running-->steps.kill_pod.outputs
steps.kill_pod.starting-->steps.kill_pod.closed
steps.kill_pod.starting-->steps.kill_pod.running
steps.kill_pod.starting-->steps.kill_pod.starting.started
%% Error path
steps.kill_pod.cancelled-->steps.kill_pod.crashed
steps.kill_pod.cancelled-->steps.kill_pod.deploy_failed
steps.kill_pod.crashed-->steps.kill_pod.crashed.error
steps.kill_pod.deploy-->steps.kill_pod.deploy_failed
steps.kill_pod.deploy_failed-->steps.kill_pod.deploy_failed.error
steps.kill_pod.enabling-->steps.kill_pod.crashed
steps.kill_pod.outputs-->steps.kill_pod.outputs.error
steps.kill_pod.running-->steps.kill_pod.crashed
steps.kill_pod.starting-->steps.kill_pod.crashed
%% Mermaid end
```
### StressNG (CPU Hog) Workflow
```mermaid
%% Mermaid markdown workflow
flowchart LR
%% Success path
input-->steps.kubeconfig.starting
input-->steps.stressng.deploy
input-->steps.stressng.starting
steps.kubeconfig.cancelled-->steps.kubeconfig.closed
steps.kubeconfig.cancelled-->steps.kubeconfig.outputs
steps.kubeconfig.closed-->steps.kubeconfig.closed.result
steps.kubeconfig.deploy-->steps.kubeconfig.closed
steps.kubeconfig.deploy-->steps.kubeconfig.starting
steps.kubeconfig.disabled-->steps.kubeconfig.disabled.output
steps.kubeconfig.enabling-->steps.kubeconfig.closed
steps.kubeconfig.enabling-->steps.kubeconfig.disabled
steps.kubeconfig.enabling-->steps.kubeconfig.enabling.resolved
steps.kubeconfig.enabling-->steps.kubeconfig.starting
steps.kubeconfig.outputs-->steps.kubeconfig.outputs.success
steps.kubeconfig.outputs.success-->steps.stressng.deploy
steps.kubeconfig.running-->steps.kubeconfig.closed
steps.kubeconfig.running-->steps.kubeconfig.outputs
steps.kubeconfig.starting-->steps.kubeconfig.closed
steps.kubeconfig.starting-->steps.kubeconfig.running
steps.kubeconfig.starting-->steps.kubeconfig.starting.started
steps.stressng.cancelled-->steps.stressng.closed
steps.stressng.cancelled-->steps.stressng.outputs
steps.stressng.closed-->steps.stressng.closed.result
steps.stressng.deploy-->steps.stressng.closed
steps.stressng.deploy-->steps.stressng.starting
steps.stressng.disabled-->steps.stressng.disabled.output
steps.stressng.enabling-->steps.stressng.closed
steps.stressng.enabling-->steps.stressng.disabled
steps.stressng.enabling-->steps.stressng.enabling.resolved
steps.stressng.enabling-->steps.stressng.starting
steps.stressng.outputs-->steps.stressng.outputs.success
steps.stressng.outputs.success-->outputs.success
steps.stressng.running-->steps.stressng.closed
steps.stressng.running-->steps.stressng.outputs
steps.stressng.starting-->steps.stressng.closed
steps.stressng.starting-->steps.stressng.running
steps.stressng.starting-->steps.stressng.starting.started
%% Error path
steps.kubeconfig.cancelled-->steps.kubeconfig.crashed
steps.kubeconfig.cancelled-->steps.kubeconfig.deploy_failed
steps.kubeconfig.crashed-->steps.kubeconfig.crashed.error
steps.kubeconfig.deploy-->steps.kubeconfig.deploy_failed
steps.kubeconfig.deploy_failed-->steps.kubeconfig.deploy_failed.error
steps.kubeconfig.enabling-->steps.kubeconfig.crashed
steps.kubeconfig.outputs-->steps.kubeconfig.outputs.error
steps.kubeconfig.running-->steps.kubeconfig.crashed
steps.kubeconfig.starting-->steps.kubeconfig.crashed
steps.stressng.cancelled-->steps.stressng.crashed
steps.stressng.cancelled-->steps.stressng.deploy_failed
steps.stressng.crashed-->steps.stressng.crashed.error
steps.stressng.deploy-->steps.stressng.deploy_failed
steps.stressng.deploy_failed-->steps.stressng.deploy_failed.error
steps.stressng.enabling-->steps.stressng.crashed
steps.stressng.outputs-->steps.stressng.outputs.error
steps.stressng.running-->steps.stressng.crashed
steps.stressng.starting-->steps.stressng.crashed
%% Mermaid end
```
### Kube-Burner Workflow
```mermaid
%% Mermaid markdown workflow
flowchart LR
%% Success path
input-->steps.kubeburner.starting
steps.kubeburner.cancelled-->steps.kubeburner.closed
steps.kubeburner.cancelled-->steps.kubeburner.outputs
steps.kubeburner.closed-->steps.kubeburner.closed.result
steps.kubeburner.deploy-->steps.kubeburner.closed
steps.kubeburner.deploy-->steps.kubeburner.starting
steps.kubeburner.disabled-->steps.kubeburner.disabled.output
steps.kubeburner.enabling-->steps.kubeburner.closed
steps.kubeburner.enabling-->steps.kubeburner.disabled
steps.kubeburner.enabling-->steps.kubeburner.enabling.resolved
steps.kubeburner.enabling-->steps.kubeburner.starting
steps.kubeburner.outputs-->steps.kubeburner.outputs.success
steps.kubeburner.outputs.success-->outputs.success
steps.kubeburner.running-->steps.kubeburner.closed
steps.kubeburner.running-->steps.kubeburner.outputs
steps.kubeburner.starting-->steps.kubeburner.closed
steps.kubeburner.starting-->steps.kubeburner.running
steps.kubeburner.starting-->steps.kubeburner.starting.started
steps.uuidgen.cancelled-->steps.uuidgen.closed
steps.uuidgen.cancelled-->steps.uuidgen.outputs
steps.uuidgen.closed-->steps.uuidgen.closed.result
steps.uuidgen.deploy-->steps.uuidgen.closed
steps.uuidgen.deploy-->steps.uuidgen.starting
steps.uuidgen.disabled-->steps.uuidgen.disabled.output
steps.uuidgen.enabling-->steps.uuidgen.closed
steps.uuidgen.enabling-->steps.uuidgen.disabled
steps.uuidgen.enabling-->steps.uuidgen.enabling.resolved
steps.uuidgen.enabling-->steps.uuidgen.starting
steps.uuidgen.outputs-->steps.uuidgen.outputs.success
steps.uuidgen.outputs.success-->steps.kubeburner.starting
steps.uuidgen.running-->steps.uuidgen.closed
steps.uuidgen.running-->steps.uuidgen.outputs
steps.uuidgen.starting-->steps.uuidgen.closed
steps.uuidgen.starting-->steps.uuidgen.running
steps.uuidgen.starting-->steps.uuidgen.starting.started
%% Error path
steps.kubeburner.cancelled-->steps.kubeburner.crashed
steps.kubeburner.cancelled-->steps.kubeburner.deploy_failed
steps.kubeburner.crashed-->steps.kubeburner.crashed.error
steps.kubeburner.deploy-->steps.kubeburner.deploy_failed
steps.kubeburner.deploy_failed-->steps.kubeburner.deploy_failed.error
steps.kubeburner.enabling-->steps.kubeburner.crashed
steps.kubeburner.outputs-->steps.kubeburner.outputs.error
steps.kubeburner.running-->steps.kubeburner.crashed
steps.kubeburner.starting-->steps.kubeburner.crashed
steps.uuidgen.cancelled-->steps.uuidgen.crashed
steps.uuidgen.cancelled-->steps.uuidgen.deploy_failed
steps.uuidgen.crashed-->steps.uuidgen.crashed.error
steps.uuidgen.deploy-->steps.uuidgen.deploy_failed
steps.uuidgen.deploy_failed-->steps.uuidgen.deploy_failed.error
steps.uuidgen.enabling-->steps.uuidgen.crashed
steps.uuidgen.outputs-->steps.uuidgen.outputs.error
steps.uuidgen.running-->steps.uuidgen.crashed
steps.uuidgen.starting-->steps.uuidgen.crashed
%% Mermaid end
```

View File

@@ -0,0 +1,18 @@
---
deployers:
image:
deployer_name: podman
deployment:
imagePullPolicy: IfNotPresent
python:
deployer_name: python
modulePullPolicy: Always
pythonPath: /usr/bin/python
workdir: /tmp
log:
level: debug
logged_outputs:
error:
level: debug
success:
level: debug

View File

@@ -0,0 +1,41 @@
kubernetes_target:
kubeconfig_path:
cpu_hog_enabled: true
pod_chaos_enabled: true
kubeburner_enabled: true
kubeburner_list:
- kubeburner:
kubeconfig: 'given later in workflow by kubeconfig plugin'
workload: 'cluster-density'
qps: 20
burst: 20
log_level: 'info'
timeout: '1m'
iterations: 1
churn: 'true'
churn_duration: 1s
churn_delay: 1s
churn_percent: 10
alerting: 'true'
gc: 'true'
pod_chaos_list:
- namespace_pattern: ^openshift-etcd$
label_selector: k8s-app=etcd
kill: 1
krkn_pod_recovery_time: 1
cpu_hog_list:
- namespace: default
# set the node selector as a key-value pair eg.
# node_selector:
# kubernetes.io/hostname: kind-worker2
node_selector: {}
stressng_params:
timeout: 1
stressors:
- stressor: cpu
workers: 1
cpu-load: 20
cpu-method: all

View File

@@ -0,0 +1,75 @@
version: v0.2.0
input:
root: CpuHog__KubernetesTarget
objects:
CpuHog__KubernetesTarget:
id: CpuHog__KubernetesTarget
properties:
constant:
type:
type_id: ref
id: KubernetesTarget
item:
type:
type_id: ref
id: CpuHog
KubernetesTarget:
id: KubernetesTarget
properties:
kubeconfig_path:
type:
type_id: string
CpuHog:
id: CpuHog
properties:
namespace:
display:
description: The namespace where the container will be deployed
name: Namespace
type:
type_id: string
required: true
node_selector:
display:
description: kubernetes node name where the plugin must be deployed
type:
type_id: map
values:
type_id: string
keys:
type_id: string
required: true
stressng_params:
type:
type_id: ref
id: StressNGParams
namespace: $.steps.stressng.starting.inputs.input
steps:
kubeconfig:
plugin:
src: quay.io/arcalot/arcaflow-plugin-kubeconfig:0.3.1
deployment_type: image
input:
kubeconfig: !expr 'readFile($.input.constant.kubeconfig_path)'
stressng:
plugin:
src: quay.io/arcalot/arcaflow-plugin-stressng:0.8.0
deployment_type: image
step: workload
input: !expr $.input.item.stressng_params
deploy:
deployer_name: kubernetes
connection: !expr $.steps.kubeconfig.outputs.success.connection
pod:
metadata:
namespace: !expr $.input.item.namespace
labels:
arcaflow: stressng
spec:
nodeSelector: !expr $.input.item.node_selector
pluginContainer:
imagePullPolicy: Always
outputs:
success: !expr $.steps.stressng.outputs.success

View File

@@ -0,0 +1,54 @@
version: v0.2.0
input:
root: KubeBurner__KubernetesTarget
objects:
KubeBurner__KubernetesTarget:
id: KubeBurner__KubernetesTarget
properties:
constant:
type:
type_id: ref
id: KubernetesTarget
item:
type:
type_id: ref
id: KubeBurner
KubernetesTarget:
id: KubernetesTarget
properties:
kubeconfig_path:
type:
type_id: string
KubeBurner:
id: KubeBurner
properties:
kubeburner:
type:
type_id: ref
id: KubeBurnerInputParams
namespace: $.steps.kubeburner.starting.inputs.input
steps:
uuidgen:
plugin:
deployment_type: image
src: quay.io/arcalot/arcaflow-plugin-utilities:0.6.0
step: uuid
input: {}
kubeburner:
plugin:
deployment_type: image
src: quay.io/redhat-performance/arcaflow-plugin-kube-burner:latest
step: kube-burner
input:
kubeconfig: !expr 'readFile($.input.constant.kubeconfig_path)'
uuid: !expr $.steps.uuidgen.outputs.success.uuid
workload: !expr $.input.item.kubeburner.workload
iterations: !expr $.input.item.kubeburner.iterations
churn: !expr $.input.item.kubeburner.churn
churn_duration: !expr $.input.item.kubeburner.churn_duration
churn_delay: !expr $.input.item.kubeburner.churn_delay
outputs:
success:
burner: !expr $.steps.kubeburner.outputs.success

View File

@@ -0,0 +1,108 @@
version: v0.2.0
input:
root: KillPodConfig__KubernetesTarget
objects:
KillPodConfig__KubernetesTarget:
id: KillPodConfig__KubernetesTarget
properties:
constant:
type:
type_id: ref
id: KubernetesTarget
item:
type:
type_id: ref
id: KillPodConfig
KubernetesTarget:
id: KubernetesTarget
properties:
kubeconfig_path:
type:
type_id: string
KillPodConfig:
id: KillPodConfig
properties:
backoff:
default: '1'
display:
description: How many seconds to wait between checks for the target
pod status.
name: Backoff
required: false
type:
type_id: integer
kill:
default: '1'
display:
description: How many pods should we attempt to kill?
name: Number of pods to kill
required: false
type:
min: 1
type_id: integer
krkn_pod_recovery_time:
default: '60'
display:
description: The Expected Recovery time fo the pod (used by Krkn to
monitor the pod lifecycle)
name: Recovery Time
required: false
type:
type_id: integer
label_selector:
display:
description: 'Kubernetes label selector for the target pods. Required
if name_pattern is not set.
See https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
for details.'
name: Label selector
required: false
required_if_not:
- name_pattern
type:
type_id: string
name_pattern:
display:
description: Regular expression for target pods. Required if label_selector
is not set.
name: Name pattern
required: false
required_if_not:
- label_selector
type:
type_id: pattern
namespace_pattern:
display:
description: Regular expression for target pod namespaces.
name: Namespace pattern
required: true
type:
type_id: pattern
timeout:
default: '180'
display:
description: Timeout to wait for the target pod(s) to be removed in
seconds.
name: Timeout
required: false
type:
type_id: integer
steps:
kill_pod:
step: kill-pods
plugin:
deployment_type: python
src: arcaflow-plugin-kill-pod@git+https://github.com/krkn-chaos/arcaflow-plugin-kill-pod.git@a9f87f88d8e7763d111613bd8b2c7862fc49624f
input:
namespace_pattern: !expr $.input.item.namespace_pattern
label_selector: !expr $.input.item.label_selector
kubeconfig_path: !expr $.input.constant.kubeconfig_path
deploy:
deployer_name: python
modulePullPolicy: Always
pythonPath: /usr/bin/python
workdir: /tmp
outputs:
success: !expr $.steps.kill_pod.outputs.success

View File

@@ -0,0 +1,73 @@
version: v0.2.0
input:
root: RootObject
objects:
KubernetesTarget:
id: KubernetesTarget
properties:
kubeconfig_path:
type:
type_id: string
RootObject:
id: RootObject
properties:
cpu_hog_enabled:
type:
type_id: bool
pod_chaos_enabled:
type:
type_id: bool
kubeburner_enabled:
type:
type_id: bool
kubernetes_target:
type:
type_id: ref
id: KubernetesTarget
kubeburner_list:
type:
type_id: list
items:
type_id: ref
id: KubeBurner
namespace: $.steps.kubeburner_wf.execute.inputs.items
pod_chaos_list:
type:
type_id: list
items:
type_id: ref
id: KillPodConfig
namespace: $.steps.pod_chaos_wf.execute.inputs.items
cpu_hog_list:
type:
type_id: list
items:
type_id: ref
id: CpuHog
namespace: $.steps.cpu_hog_wf.execute.inputs.items
steps:
kubeburner_wf:
kind: foreach
items: !expr 'bindConstants($.input.kubeburner_list, $.input.kubernetes_target)'
workflow: subworkflows/kubeburner.yaml
parallelism: 1
enabled: !expr $.input.kubeburner_enabled
pod_chaos_wf:
kind: foreach
items: !expr 'bindConstants($.input.pod_chaos_list, $.input.kubernetes_target)'
workflow: subworkflows/pod-chaos.yaml
parallelism: 1
enabled: !expr $.input.pod_chaos_enabled
cpu_hog_wf:
kind: foreach
items: !expr 'bindConstants($.input.cpu_hog_list, $.input.kubernetes_target)'
workflow: subworkflows/cpu-hog.yaml
parallelism: 1
enabled: !expr $.input.cpu_hog_enabled
outputs:
workflow_success:
kubeburner: !ordisabled $.steps.kubeburner_wf.outputs.success
pod_chaos: !ordisabled $.steps.pod_chaos_wf.outputs.success
cpu_hog: !ordisabled $.steps.cpu_hog_wf.outputs.success

View File

@@ -1,17 +1,3 @@
# ⚠️ DEPRECATED - This project has moved
> **All development has moved to [github.com/krkn-chaos/krkn-ai](https://github.com/krkn-chaos/krkn-ai)**
>
> This directory is no longer maintained. Please visit the new repository for:
> - Latest features and updates
> - Active development and support
> - Bug fixes and improvements
> - Documentation and examples
>
> See [../README.md](../README.md) for more information.
---
# aichaos
Enhancing Chaos Engineering with AI-assisted fault injection for better resiliency and non-functional testing.

View File

@@ -2,5 +2,5 @@ numpy
pandas
requests
Flask==2.2.5
Werkzeug==3.1.5
Werkzeug==3.0.6
flasgger==0.9.5

View File

@@ -3,9 +3,8 @@ pandas
notebook
jupyterlab
jupyter
seaborn==0.13.2
seaborn
requests
wheel
Flask==2.2.5
Flask==2.1.0
flasgger==0.9.5
pillow==10.3.0

View File

@@ -1,17 +1,3 @@
# ⚠️ DEPRECATED - This project has moved
> **All development has moved to [github.com/krkn-chaos/krkn-ai](https://github.com/krkn-chaos/krkn-ai)**
>
> This directory is no longer maintained. Please visit the new repository for:
> - Latest features and updates
> - Active development and support
> - Bug fixes and improvements
> - Documentation and examples
>
> See [../README.md](../README.md) for more information.
---
# Chaos Recommendation Tool
This tool, designed for Redhat Kraken, operates through the command line and offers recommendations for chaos testing. It suggests probable chaos test cases that can disrupt application services by analyzing their behavior and assessing their susceptibility to specific fault types.

View File

@@ -224,7 +224,9 @@ def json_namespace(namespace, queries, analysis_data):
def main():
parser = argparse.ArgumentParser(description="Krkn Chaos Recommender Command-Line tool")
parser = argparse.ArgumentParser(
description="Krkn Chaos Recommender Command-Line tool"
)
args = parse_arguments(parser)
if args.config_file is None and not args.options:
@@ -234,133 +236,91 @@ def main():
parser.print_help()
sys.exit(1)
try:
if args.config_file is not None:
(
namespaces,
kubeconfig,
prometheus_endpoint,
auth_token,
scrape_duration,
chaos_tests,
log_level,
threshold,
heatmap_cpu_threshold,
heatmap_mem_threshold,
output_path,
) = read_configuration(args.config_file)
else:
namespaces = args.namespaces
kubeconfig = args.kubeconfig
auth_token = args.token
scrape_duration = args.scrape_duration
log_level = args.log_level
prometheus_endpoint = args.prometheus_endpoint
output_path = args.json_output_file
chaos_tests = {
"MEM": args.MEM,
"GENERIC": args.GENERIC,
"CPU": args.CPU,
"NETWORK": args.NETWORK,
}
threshold = args.threshold
heatmap_mem_threshold = args.mem_threshold
heatmap_cpu_threshold = args.cpu_threshold
if log_level not in ["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"]:
logging.error(f"{log_level} not a valid log level")
sys.exit(1)
logging.basicConfig(level=log_level)
if output_path is not False:
if output_path is None:
output_path = "./recommender_output"
logging.info(
f"Path for output file not specified. "
f"Using default folder {output_path}"
)
if not os.path.exists(os.path.expanduser(output_path)):
logging.error(f"Folder {output_path} for output not found.")
sys.exit(1)
# Validate required inputs
if not namespaces:
logging.error("No namespaces provided")
sys.exit(1)
if not prometheus_endpoint:
logging.error("Prometheus endpoint is required")
sys.exit(1)
if not auth_token:
logging.error("Auth token is required")
sys.exit(1)
logging.info("Loading inputs...")
inputs = json_inputs(
if args.config_file is not None:
(
namespaces,
kubeconfig,
prometheus_endpoint,
auth_token,
scrape_duration,
chaos_tests,
log_level,
threshold,
heatmap_cpu_threshold,
heatmap_mem_threshold,
)
namespaces_data = []
output_path,
) = read_configuration(args.config_file)
logging.info("Starting Analysis...")
if args.options:
namespaces = args.namespaces
kubeconfig = args.kubeconfig
auth_token = args.token
scrape_duration = args.scrape_duration
log_level = args.log_level
prometheus_endpoint = args.prometheus_endpoint
output_path = args.json_output_file
chaos_tests = {
"MEM": args.MEM,
"GENERIC": args.GENERIC,
"CPU": args.CPU,
"NETWORK": args.NETWORK,
}
threshold = args.threshold
heatmap_mem_threshold = args.mem_threshold
heatmap_cpu_threshold = args.cpu_threshold
try:
# Initialize Prometheus client and fetch utilization data
file_path, queries = prometheus.fetch_utilization_from_prometheus(
prometheus_endpoint, auth_token, namespaces, scrape_duration
)
except prometheus.PrometheusConnectionError as e:
logging.error(f"Failed to connect to Prometheus at {prometheus_endpoint}: {str(e)}")
sys.exit(1)
except prometheus.PrometheusQueryError as e:
logging.error(f"Failed to execute Prometheus queries: {str(e)}")
sys.exit(1)
except Exception as e:
logging.error(f"Unexpected error while fetching Prometheus data: {str(e)}")
sys.exit(1)
try:
analysis_data = analysis(
file_path,
namespaces,
chaos_tests,
threshold,
heatmap_cpu_threshold,
heatmap_mem_threshold,
)
except Exception as e:
logging.error(f"Failed to analyze data: {str(e)}")
sys.exit(1)
try:
for namespace in namespaces:
namespace_data = json_namespace(
namespace, queries[namespace], analysis_data[namespace]
)
namespaces_data.append(namespace_data)
except KeyError as e:
logging.error(f"Failed to process namespace data: {str(e)}")
sys.exit(1)
except Exception as e:
logging.error(f"Unexpected error while processing namespace data: {str(e)}")
sys.exit(1)
try:
make_json_output(inputs, namespaces_data, output_path)
except Exception as e:
logging.error(f"Failed to create JSON output: {str(e)}")
sys.exit(1)
except Exception as e:
logging.error(f"An unexpected error occurred: {str(e)}")
if log_level not in ["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"]:
logging.error(f"{log_level} not a valid log level")
sys.exit(1)
logging.basicConfig(level=log_level)
if output_path is not False:
if output_path is None:
output_path = "./recommender_output"
logging.info(
f"Path for output file not specified. "
f"Using default folder {output_path}"
)
if not os.path.exists(os.path.expanduser(output_path)):
logging.error(f"Folder {output_path} for output not found.")
sys.exit(1)
logging.info("Loading inputs...")
inputs = json_inputs(
namespaces,
kubeconfig,
prometheus_endpoint,
scrape_duration,
chaos_tests,
threshold,
heatmap_cpu_threshold,
heatmap_mem_threshold,
)
namespaces_data = []
logging.info("Starting Analysis...")
file_path, queries = prometheus.fetch_utilization_from_prometheus(
prometheus_endpoint, auth_token, namespaces, scrape_duration
)
analysis_data = analysis(
file_path,
namespaces,
chaos_tests,
threshold,
heatmap_cpu_threshold,
heatmap_mem_threshold,
)
for namespace in namespaces:
namespace_data = json_namespace(
namespace, queries[namespace], analysis_data[namespace]
)
namespaces_data.append(namespace_data)
make_json_output(inputs, namespaces_data, output_path)
if __name__ == "__main__":
main()