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f801dfce54 |
36
.github/workflows/docker-image.yml
vendored
36
.github/workflows/docker-image.yml
vendored
@@ -1,8 +1,7 @@
|
||||
name: Docker Image CI
|
||||
on:
|
||||
push:
|
||||
branches:
|
||||
- main
|
||||
tags: ['v[0-9].[0-9]+.[0-9]+']
|
||||
pull_request:
|
||||
|
||||
jobs:
|
||||
@@ -12,30 +11,43 @@ jobs:
|
||||
- name: Check out code
|
||||
uses: actions/checkout@v3
|
||||
- name: Build the Docker images
|
||||
if: startsWith(github.ref, 'refs/tags')
|
||||
run: |
|
||||
docker build --no-cache -t quay.io/krkn-chaos/krkn containers/
|
||||
docker build --no-cache -t quay.io/krkn-chaos/krkn containers/ --build-arg TAG=${GITHUB_REF#refs/tags/}
|
||||
docker tag quay.io/krkn-chaos/krkn quay.io/redhat-chaos/krkn
|
||||
docker tag quay.io/krkn-chaos/krkn quay.io/krkn-chaos/krkn:${GITHUB_REF#refs/tags/}
|
||||
docker tag quay.io/krkn-chaos/krkn quay.io/redhat-chaos/krkn:${GITHUB_REF#refs/tags/}
|
||||
|
||||
- name: Test Build the Docker images
|
||||
if: ${{ github.event_name == 'pull_request' }}
|
||||
run: |
|
||||
docker build --no-cache -t quay.io/krkn-chaos/krkn containers/ --build-arg PR_NUMBER=${{ github.event.pull_request.number }}
|
||||
- name: Login in quay
|
||||
if: github.ref == 'refs/heads/main' && github.event_name == 'push'
|
||||
if: startsWith(github.ref, 'refs/tags')
|
||||
run: docker login quay.io -u ${QUAY_USER} -p ${QUAY_TOKEN}
|
||||
env:
|
||||
QUAY_USER: ${{ secrets.QUAY_USERNAME }}
|
||||
QUAY_TOKEN: ${{ secrets.QUAY_PASSWORD }}
|
||||
- name: Push the KrknChaos Docker images
|
||||
if: github.ref == 'refs/heads/main' && github.event_name == 'push'
|
||||
run: docker push quay.io/krkn-chaos/krkn
|
||||
if: startsWith(github.ref, 'refs/tags')
|
||||
run: |
|
||||
docker push quay.io/krkn-chaos/krkn
|
||||
docker push quay.io/krkn-chaos/krkn:${GITHUB_REF#refs/tags/}
|
||||
- name: Login in to redhat-chaos quay
|
||||
if: github.ref == 'refs/heads/main' && github.event_name == 'push'
|
||||
if: startsWith(github.ref, 'refs/tags/v')
|
||||
run: docker login quay.io -u ${QUAY_USER} -p ${QUAY_TOKEN}
|
||||
env:
|
||||
QUAY_USER: ${{ secrets.QUAY_USER_1 }}
|
||||
QUAY_TOKEN: ${{ secrets.QUAY_TOKEN_1 }}
|
||||
- name: Push the RedHat Chaos Docker images
|
||||
if: github.ref == 'refs/heads/main' && github.event_name == 'push'
|
||||
run: docker push quay.io/redhat-chaos/krkn
|
||||
if: startsWith(github.ref, 'refs/tags')
|
||||
run: |
|
||||
docker push quay.io/redhat-chaos/krkn
|
||||
docker push quay.io/redhat-chaos/krkn:${GITHUB_REF#refs/tags/}
|
||||
- name: Rebuild krkn-hub
|
||||
if: github.ref == 'refs/heads/main' && github.event_name == 'push'
|
||||
if: startsWith(github.ref, 'refs/tags')
|
||||
uses: redhat-chaos/actions/krkn-hub@main
|
||||
with:
|
||||
QUAY_USER: ${{ secrets.QUAY_USER_1 }}
|
||||
QUAY_TOKEN: ${{ secrets.QUAY_TOKEN_1 }}
|
||||
QUAY_USER: ${{ secrets.QUAY_USERNAME }}
|
||||
QUAY_TOKEN: ${{ secrets.QUAY_PASSWORD }}
|
||||
AUTOPUSH: ${{ secrets.AUTOPUSH }}
|
||||
|
||||
123
.github/workflows/tests.yml
vendored
123
.github/workflows/tests.yml
vendored
@@ -1,8 +1,12 @@
|
||||
name: Functional & Unit Tests
|
||||
on:
|
||||
pull_request:
|
||||
push:
|
||||
branches:
|
||||
- main
|
||||
jobs:
|
||||
tests:
|
||||
# Common steps
|
||||
name: Functional & Unit Tests
|
||||
runs-on: ubuntu-latest
|
||||
steps:
|
||||
@@ -47,8 +51,7 @@ jobs:
|
||||
sudo apt-get install build-essential python3-dev
|
||||
pip install --upgrade pip
|
||||
pip install -r requirements.txt
|
||||
# - name: Run unit tests
|
||||
# run: python -m coverage run -a -m unittest discover -s tests -v
|
||||
|
||||
- name: Deploy test workloads
|
||||
run: |
|
||||
kubectl apply -f CI/templates/outage_pod.yaml
|
||||
@@ -58,33 +61,72 @@ jobs:
|
||||
kubectl create namespace namespace-scenario
|
||||
kubectl apply -f CI/templates/time_pod.yaml
|
||||
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
|
||||
- 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.distribution="kubernetes"' CI/config/common_test_config.yaml
|
||||
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
|
||||
echo "test_app_outages" > ./CI/tests/my_tests
|
||||
echo "test_container" >> ./CI/tests/my_tests
|
||||
echo "test_namespace" >> ./CI/tests/my_tests
|
||||
echo "test_net_chaos" >> ./CI/tests/my_tests
|
||||
echo "test_time" >> ./CI/tests/my_tests
|
||||
echo "test_arca_cpu_hog" >> ./CI/tests/my_tests
|
||||
echo "test_arca_memory_hog" >> ./CI/tests/my_tests
|
||||
echo "test_arca_io_hog" >> ./CI/tests/my_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_namespace" >> ./CI/tests/functional_tests
|
||||
echo "test_net_chaos" >> ./CI/tests/functional_tests
|
||||
echo "test_time" >> ./CI/tests/functional_tests
|
||||
echo "test_arca_cpu_hog" >> ./CI/tests/functional_tests
|
||||
echo "test_arca_memory_hog" >> ./CI/tests/functional_tests
|
||||
echo "test_arca_io_hog" >> ./CI/tests/functional_tests
|
||||
|
||||
|
||||
# Push on main only steps + all other functional to collect coverage
|
||||
# for the badge
|
||||
- name: Configure AWS Credentials
|
||||
if: github.ref == 'refs/heads/main' && github.event_name == 'push'
|
||||
uses: aws-actions/configure-aws-credentials@v4
|
||||
with:
|
||||
aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
|
||||
aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
|
||||
aws-region : ${{ secrets.AWS_REGION }}
|
||||
- name: Setup Post Merge Request Functional Tests
|
||||
if: github.ref == 'refs/heads/main' && github.event_name == 'push'
|
||||
run: |
|
||||
yq -i '.kraken.port="8081"' CI/config/common_test_config.yaml
|
||||
yq -i '.kraken.signal_address="0.0.0.0"' CI/config/common_test_config.yaml
|
||||
yq -i '.kraken.performance_monitoring="localhost:9090"' CI/config/common_test_config.yaml
|
||||
yq -i '.telemetry.username="${{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_service_hijacking" >> ./CI/tests/functional_tests
|
||||
echo "test_app_outages" >> ./CI/tests/functional_tests
|
||||
echo "test_container" >> ./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_arca_cpu_hog" >> ./CI/tests/functional_tests
|
||||
echo "test_arca_memory_hog" >> ./CI/tests/functional_tests
|
||||
echo "test_arca_io_hog" >> ./CI/tests/functional_tests
|
||||
|
||||
# Final common steps
|
||||
- name: Run Functional tests
|
||||
env:
|
||||
AWS_BUCKET: ${{ secrets.AWS_BUCKET }}
|
||||
run: |
|
||||
./CI/run.sh
|
||||
cat ./CI/results.markdown >> $GITHUB_STEP_SUMMARY
|
||||
echo >> $GITHUB_STEP_SUMMARY
|
||||
- name: Run Unit tests
|
||||
run: python -m coverage run -a -m unittest discover -s tests -v
|
||||
- name: Upload CI logs
|
||||
uses: actions/upload-artifact@v3
|
||||
uses: actions/upload-artifact@v4
|
||||
with:
|
||||
name: ci-logs
|
||||
path: CI/out
|
||||
@@ -92,16 +134,65 @@ jobs:
|
||||
- name: Collect coverage report
|
||||
run: |
|
||||
python -m coverage html
|
||||
python -m coverage json
|
||||
- name: Publish coverage report to job summary
|
||||
run: |
|
||||
pip install html2text
|
||||
html2text --ignore-images --ignore-links -b 0 htmlcov/index.html >> $GITHUB_STEP_SUMMARY
|
||||
- name: Upload coverage data
|
||||
uses: actions/upload-artifact@v3
|
||||
uses: actions/upload-artifact@v4
|
||||
with:
|
||||
name: coverage
|
||||
path: htmlcov
|
||||
if-no-files-found: error
|
||||
- name: Upload json coverage
|
||||
uses: actions/upload-artifact@v4
|
||||
with:
|
||||
name: coverage.json
|
||||
path: coverage.json
|
||||
if-no-files-found: error
|
||||
- name: Check CI results
|
||||
run: grep Fail CI/results.markdown && false || true
|
||||
badge:
|
||||
permissions:
|
||||
contents: write
|
||||
name: Generate Coverage Badge
|
||||
runs-on: ubuntu-latest
|
||||
needs:
|
||||
- tests
|
||||
if: github.ref == 'refs/heads/main' && github.event_name == 'push'
|
||||
steps:
|
||||
- name: Check out doc repo
|
||||
uses: actions/checkout@master
|
||||
with:
|
||||
repository: krkn-chaos/krkn-lib-docs
|
||||
path: krkn-lib-docs
|
||||
ssh-key: ${{ secrets.KRKN_LIB_DOCS_PRIV_KEY }}
|
||||
- name: Download json coverage
|
||||
uses: actions/download-artifact@v4
|
||||
with:
|
||||
name: coverage.json
|
||||
- name: Set up Python
|
||||
uses: actions/setup-python@v4
|
||||
with:
|
||||
python-version: 3.9
|
||||
- name: Copy badge on GitHub Page Repo
|
||||
env:
|
||||
COLOR: yellow
|
||||
run: |
|
||||
# generate coverage badge on previously calculated total coverage
|
||||
# and copy in the docs page
|
||||
export TOTAL=$(python -c "import json;print(json.load(open('coverage.json'))['totals']['percent_covered_display'])")
|
||||
[[ $TOTAL > 40 ]] && COLOR=green
|
||||
echo "TOTAL: $TOTAL"
|
||||
echo "COLOR: $COLOR"
|
||||
curl "https://img.shields.io/badge/coverage-$TOTAL%25-$COLOR" > ./krkn-lib-docs/coverage_badge_krkn.svg
|
||||
- name: Push updated Coverage Badge
|
||||
run: |
|
||||
cd krkn-lib-docs
|
||||
git add .
|
||||
git config user.name "krkn-chaos"
|
||||
git config user.email "<>"
|
||||
git commit -m "[KRKN] Coverage Badge ${GITHUB_REF##*/}" || echo "no changes to commit"
|
||||
git push
|
||||
|
||||
|
||||
3
.gitignore
vendored
3
.gitignore
vendored
@@ -16,6 +16,7 @@ __pycache__/*
|
||||
*.out
|
||||
kube-burner*
|
||||
kube_burner*
|
||||
recommender_*.json
|
||||
|
||||
# Project files
|
||||
.ropeproject
|
||||
@@ -61,7 +62,7 @@ inspect.local.*
|
||||
!CI/config/common_test_config.yaml
|
||||
CI/out/*
|
||||
CI/ci_results
|
||||
CI/scenarios/*node.yaml
|
||||
CI/legacy/*node.yaml
|
||||
CI/results.markdown
|
||||
|
||||
#env
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
## CI Tests
|
||||
|
||||
### First steps
|
||||
Edit [my_tests](tests/my_tests) with tests you want to run
|
||||
Edit [functional_tests](tests/functional_tests) with tests you want to run
|
||||
|
||||
### How to run
|
||||
```./CI/run.sh```
|
||||
@@ -11,7 +11,7 @@ This will run kraken using python, make sure python3 is set up and configured pr
|
||||
|
||||
### Adding a test case
|
||||
|
||||
1. Add in simple scenario yaml file to execute under [../CI/scenarios/](scenarios)
|
||||
1. Add in simple scenario yaml file to execute under [../CI/scenarios/](legacy)
|
||||
|
||||
2. Copy [test_application_outages.sh](tests/test_app_outages.sh) for example on how to get started
|
||||
|
||||
@@ -27,7 +27,7 @@ This will run kraken using python, make sure python3 is set up and configured pr
|
||||
|
||||
e. 15: Make sure name of config in line 14 matches what you pass on this line
|
||||
|
||||
4. Add test name to [my_tests](../CI/tests/my_tests) file
|
||||
4. Add test name to [functional_tests](../CI/tests/functional_tests) file
|
||||
|
||||
a. This will be the name of the file without ".sh"
|
||||
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
kraken:
|
||||
distribution: openshift # Distribution can be kubernetes or openshift.
|
||||
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.
|
||||
litmus_version: v1.13.6 # Litmus version to install.
|
||||
@@ -29,9 +29,12 @@ tunings:
|
||||
daemon_mode: False # Iterations are set to infinity which means that the kraken will cause chaos forever.
|
||||
telemetry:
|
||||
enabled: False # enable/disables the telemetry collection feature
|
||||
api_url: https://ulnmf9xv7j.execute-api.us-west-2.amazonaws.com/production #telemetry service endpoint
|
||||
username: username # telemetry service username
|
||||
password: password # telemetry service password
|
||||
api_url: https://yvnn4rfoi7.execute-api.us-west-2.amazonaws.com/test #telemetry service endpoint
|
||||
username: $TELEMETRY_USERNAME # telemetry service username
|
||||
password: $TELEMETRY_PASSWORD # telemetry service password
|
||||
prometheus_namespace: 'prometheus-k8s' # prometheus namespace
|
||||
prometheus_pod_name: 'prometheus-kind-prometheus-kube-prome-prometheus-0' # prometheus pod_name
|
||||
prometheus_container_name: 'prometheus'
|
||||
prometheus_backup: True # enables/disables prometheus data collection
|
||||
full_prometheus_backup: False # if is set to False only the /prometheus/wal folder will be downloaded.
|
||||
backup_threads: 5 # number of telemetry download/upload threads
|
||||
@@ -39,3 +42,23 @@ telemetry:
|
||||
max_retries: 0 # maximum number of upload retries (if 0 will retry forever)
|
||||
run_tag: '' # if set, this will be appended to the run folder in the bucket (useful to group the runs)
|
||||
archive_size: 10000 # the size of the prometheus data archive size in KB. The lower the size of archive is
|
||||
logs_backup: True
|
||||
logs_filter_patterns:
|
||||
- "(\\w{3}\\s\\d{1,2}\\s\\d{2}:\\d{2}:\\d{2}\\.\\d+).+" # Sep 9 11:20:36.123425532
|
||||
- "kinit (\\d+/\\d+/\\d+\\s\\d{2}:\\d{2}:\\d{2})\\s+" # kinit 2023/09/15 11:20:36 log
|
||||
- "(\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}\\.\\d+Z).+" # 2023-09-15T11:20:36.123425532Z log
|
||||
oc_cli_path: /usr/bin/oc # optional, if not specified will be search in $PATH
|
||||
events_backup: True # enables/disables cluster events collection
|
||||
telemetry_group: "funtests"
|
||||
elastic:
|
||||
enable_elastic: False
|
||||
collect_metrics: False
|
||||
collect_alerts: False
|
||||
verify_certs: False
|
||||
elastic_url: "https://192.168.39.196" # To track results in elasticsearch, give url to server here; will post telemetry details when url and index not blank
|
||||
elastic_port: 32766
|
||||
username: "elastic"
|
||||
password: "test"
|
||||
metrics_index: "krkn-metrics"
|
||||
alerts_index: "krkn-alerts"
|
||||
telemetry_index: "krkn-telemetry"
|
||||
|
||||
@@ -17,7 +17,7 @@ wait_cluster_become_ready() {
|
||||
|
||||
|
||||
|
||||
ci_tests_loc="CI/tests/my_tests"
|
||||
ci_tests_loc="CI/tests/functional_tests"
|
||||
|
||||
echo -e "********* Running Functional Tests Suite *********\n\n"
|
||||
|
||||
@@ -37,9 +37,9 @@ echo '-----------------------|--------|---------' >> $results
|
||||
|
||||
# Run each test
|
||||
failed_tests=()
|
||||
for test_name in `cat CI/tests/my_tests`
|
||||
for test_name in `cat CI/tests/functional_tests`
|
||||
do
|
||||
wait_cluster_become_ready
|
||||
#wait_cluster_become_ready
|
||||
return_value=`./CI/run_test.sh $test_name $results`
|
||||
if [[ $return_value == 1 ]]
|
||||
then
|
||||
@@ -49,6 +49,7 @@ do
|
||||
wait_cluster_become_ready
|
||||
done
|
||||
|
||||
|
||||
if (( ${#failed_tests[@]}>0 ))
|
||||
then
|
||||
echo -e "\n\n======================================================================"
|
||||
|
||||
@@ -1,5 +0,0 @@
|
||||
application_outage: # Scenario to create an outage of an application by blocking traffic
|
||||
duration: 10 # Duration in seconds after which the routes will be accessible
|
||||
namespace: openshift-monitoring # Namespace to target - all application routes will go inaccessible if pod selector is empty
|
||||
pod_selector: {} # Pods to target
|
||||
block: [Ingress, Egress] # It can be Ingress or Egress or Ingress, Egress
|
||||
@@ -1,9 +0,0 @@
|
||||
input_list:
|
||||
- cpu_count: 1
|
||||
cpu_load_percentage: 80
|
||||
cpu_method: all
|
||||
duration: 1s
|
||||
kubeconfig: ''
|
||||
namespace: default
|
||||
node_selector:
|
||||
kubernetes.io/hostname: kind-worker2
|
||||
@@ -1,98 +0,0 @@
|
||||
version: v0.2.0
|
||||
input:
|
||||
root: RootObject
|
||||
objects:
|
||||
RootObject:
|
||||
id: input_item
|
||||
properties:
|
||||
kubeconfig:
|
||||
display:
|
||||
description: The complete kubeconfig file as a string
|
||||
name: Kubeconfig file contents
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
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
|
||||
duration:
|
||||
display:
|
||||
name: duration the scenario expressed in seconds
|
||||
description: stop stress test after T seconds. One can also specify the units of time in
|
||||
seconds, minutes, hours, days or years with the suffix s, m, h, d or y
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
cpu_count:
|
||||
display:
|
||||
description: Number of CPU cores to be used (0 means all)
|
||||
name: number of CPUs
|
||||
type:
|
||||
type_id: integer
|
||||
required: true
|
||||
cpu_method:
|
||||
display:
|
||||
description: CPU stress method
|
||||
name: fine grained control of which cpu stressors to use (ackermann, cfloat etc.)
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
cpu_load_percentage:
|
||||
display:
|
||||
description: load CPU by percentage
|
||||
name: CPU load
|
||||
type:
|
||||
type_id: integer
|
||||
required: true
|
||||
|
||||
steps:
|
||||
kubeconfig:
|
||||
plugin:
|
||||
src: quay.io/arcalot/arcaflow-plugin-kubeconfig:0.2.0
|
||||
deployment_type: image
|
||||
input:
|
||||
kubeconfig: !expr $.input.kubeconfig
|
||||
stressng:
|
||||
plugin:
|
||||
src: quay.io/arcalot/arcaflow-plugin-stressng:0.5.0
|
||||
deployment_type: image
|
||||
step: workload
|
||||
input:
|
||||
cleanup: "true"
|
||||
StressNGParams:
|
||||
timeout: !expr $.input.duration
|
||||
stressors:
|
||||
- stressor: cpu
|
||||
cpu_count: !expr $.input.cpu_count
|
||||
cpu_method: !expr $.input.cpu_method
|
||||
cpu_load: !expr $.input.cpu_load_percentage
|
||||
deploy:
|
||||
deployer_name: kubernetes
|
||||
connection: !expr $.steps.kubeconfig.outputs.success.connection
|
||||
pod:
|
||||
metadata:
|
||||
namespace: !expr $.input.namespace
|
||||
labels:
|
||||
arcaflow: stressng
|
||||
spec:
|
||||
nodeSelector: !expr $.input.node_selector
|
||||
pluginContainer:
|
||||
imagePullPolicy: Always
|
||||
outputs:
|
||||
success:
|
||||
stressng: !expr $.steps.stressng.outputs.success
|
||||
|
||||
@@ -1,77 +0,0 @@
|
||||
version: v0.2.0
|
||||
input:
|
||||
root: RootObject
|
||||
objects:
|
||||
RootObject:
|
||||
id: RootObject
|
||||
properties:
|
||||
input_list:
|
||||
type:
|
||||
type_id: list
|
||||
items:
|
||||
id: input_item
|
||||
type_id: object
|
||||
properties:
|
||||
kubeconfig:
|
||||
display:
|
||||
description: The complete kubeconfig file as a string
|
||||
name: Kubeconfig file contents
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
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
|
||||
duration:
|
||||
display:
|
||||
name: duration the scenario expressed in seconds
|
||||
description: stop stress test after T seconds. One can also specify the units of time in
|
||||
seconds, minutes, hours, days or years with the suffix s, m, h, d or y
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
cpu_count:
|
||||
display:
|
||||
description: Number of CPU cores to be used (0 means all)
|
||||
name: number of CPUs
|
||||
type:
|
||||
type_id: integer
|
||||
required: true
|
||||
cpu_method:
|
||||
display:
|
||||
description: CPU stress method
|
||||
name: fine grained control of which cpu stressors to use (ackermann, cfloat etc.)
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
cpu_load_percentage:
|
||||
display:
|
||||
description: load CPU by percentage
|
||||
name: CPU load
|
||||
type:
|
||||
type_id: integer
|
||||
required: true
|
||||
steps:
|
||||
workload_loop:
|
||||
kind: foreach
|
||||
items: !expr $.input.input_list
|
||||
workflow: sub-workflow.yaml
|
||||
parallelism: 1000
|
||||
outputs:
|
||||
success:
|
||||
workloads: !expr $.steps.workload_loop.outputs.success.data
|
||||
|
||||
@@ -1,14 +0,0 @@
|
||||
input_list:
|
||||
- duration: 30s
|
||||
io_block_size: 1m
|
||||
io_workers: 1
|
||||
io_write_bytes: 10m
|
||||
kubeconfig: ''
|
||||
namespace: default
|
||||
node_selector:
|
||||
kubernetes.io/hostname: kind-worker2
|
||||
target_pod_folder: /hog-data
|
||||
target_pod_volume:
|
||||
hostPath:
|
||||
path: /tmp
|
||||
name: node-volume
|
||||
@@ -1,142 +0,0 @@
|
||||
version: v0.2.0
|
||||
input:
|
||||
root: RootObject
|
||||
objects:
|
||||
hostPath:
|
||||
id: HostPathVolumeSource
|
||||
properties:
|
||||
path:
|
||||
type:
|
||||
type_id: string
|
||||
Volume:
|
||||
id: Volume
|
||||
properties:
|
||||
name:
|
||||
type:
|
||||
type_id: string
|
||||
hostPath:
|
||||
type:
|
||||
id: hostPath
|
||||
type_id: ref
|
||||
RootObject:
|
||||
id: input_item
|
||||
properties:
|
||||
kubeconfig:
|
||||
display:
|
||||
description: The complete kubeconfig file as a string
|
||||
name: Kubeconfig file contents
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
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
|
||||
duration:
|
||||
display:
|
||||
name: duration the scenario expressed in seconds
|
||||
description: stop stress test after T seconds. One can also specify the units of time in
|
||||
seconds, minutes, hours, days or years with the suffix s, m, h, d or y
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
io_workers:
|
||||
display:
|
||||
description: number of workers
|
||||
name: start N workers continually writing, reading and removing temporary files
|
||||
type:
|
||||
type_id: integer
|
||||
required: true
|
||||
io_block_size:
|
||||
display:
|
||||
description: single write size
|
||||
name: specify size of each write in bytes. Size can be from 1 byte to 4MB.
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
io_write_bytes:
|
||||
display:
|
||||
description: Total number of bytes written
|
||||
name: write N bytes for each hdd process, the default is 1 GB. One can specify the size
|
||||
as % of free space on the file system or in units of Bytes, KBytes, MBytes and
|
||||
GBytes using the suffix b, k, m or g
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
target_pod_folder:
|
||||
display:
|
||||
description: Target Folder
|
||||
name: Folder in the pod where the test will be executed and the test files will be written
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
target_pod_volume:
|
||||
display:
|
||||
name: kubernetes volume definition
|
||||
description: the volume that will be attached to the pod. In order to stress
|
||||
the node storage only hosPath mode is currently supported
|
||||
type:
|
||||
type_id: ref
|
||||
id: Volume
|
||||
required: true
|
||||
|
||||
steps:
|
||||
kubeconfig:
|
||||
plugin:
|
||||
src: quay.io/arcalot/arcaflow-plugin-kubeconfig:0.2.0
|
||||
deployment_type: image
|
||||
input:
|
||||
kubeconfig: !expr $.input.kubeconfig
|
||||
stressng:
|
||||
plugin:
|
||||
src: quay.io/arcalot/arcaflow-plugin-stressng:0.5.0
|
||||
deployment_type: image
|
||||
step: workload
|
||||
input:
|
||||
cleanup: "true"
|
||||
StressNGParams:
|
||||
timeout: !expr $.input.duration
|
||||
workdir: !expr $.input.target_pod_folder
|
||||
stressors:
|
||||
- stressor: hdd
|
||||
hdd: !expr $.input.io_workers
|
||||
hdd_bytes: !expr $.input.io_write_bytes
|
||||
hdd_write_size: !expr $.input.io_block_size
|
||||
|
||||
deploy:
|
||||
deployer_name: kubernetes
|
||||
connection: !expr $.steps.kubeconfig.outputs.success.connection
|
||||
pod:
|
||||
metadata:
|
||||
namespace: !expr $.input.namespace
|
||||
labels:
|
||||
arcaflow: stressng
|
||||
spec:
|
||||
nodeSelector: !expr $.input.node_selector
|
||||
pluginContainer:
|
||||
imagePullPolicy: Always
|
||||
securityContext:
|
||||
privileged: true
|
||||
volumeMounts:
|
||||
- mountPath: /hog-data
|
||||
name: node-volume
|
||||
volumes:
|
||||
- !expr $.input.target_pod_volume
|
||||
|
||||
outputs:
|
||||
success:
|
||||
stressng: !expr $.steps.stressng.outputs.success
|
||||
|
||||
@@ -1,113 +0,0 @@
|
||||
version: v0.2.0
|
||||
input:
|
||||
root: RootObject
|
||||
objects:
|
||||
hostPath:
|
||||
id: HostPathVolumeSource
|
||||
properties:
|
||||
path:
|
||||
type:
|
||||
type_id: string
|
||||
Volume:
|
||||
id: Volume
|
||||
properties:
|
||||
name:
|
||||
type:
|
||||
type_id: string
|
||||
hostPath:
|
||||
type:
|
||||
id: hostPath
|
||||
type_id: ref
|
||||
RootObject:
|
||||
id: RootObject
|
||||
properties:
|
||||
input_list:
|
||||
type:
|
||||
type_id: list
|
||||
items:
|
||||
id: input_item
|
||||
type_id: object
|
||||
properties:
|
||||
kubeconfig:
|
||||
display:
|
||||
description: The complete kubeconfig file as a string
|
||||
name: Kubeconfig file contents
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
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
|
||||
duration:
|
||||
display:
|
||||
name: duration the scenario expressed in seconds
|
||||
description: stop stress test after T seconds. One can also specify the units of time in
|
||||
seconds, minutes, hours, days or years with the suffix s, m, h, d or y
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
io_workers:
|
||||
display:
|
||||
description: number of workers
|
||||
name: start N workers continually writing, reading and removing temporary files
|
||||
type:
|
||||
type_id: integer
|
||||
required: true
|
||||
io_block_size:
|
||||
display:
|
||||
description: single write size
|
||||
name: specify size of each write in bytes. Size can be from 1 byte to 4MB.
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
io_write_bytes:
|
||||
display:
|
||||
description: Total number of bytes written
|
||||
name: write N bytes for each hdd process, the default is 1 GB. One can specify the size
|
||||
as % of free space on the file system or in units of Bytes, KBytes, MBytes and
|
||||
GBytes using the suffix b, k, m or g
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
target_pod_folder:
|
||||
display:
|
||||
description: Target Folder
|
||||
name: Folder in the pod where the test will be executed and the test files will be written
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
target_pod_volume:
|
||||
display:
|
||||
name: kubernetes volume definition
|
||||
description: the volume that will be attached to the pod. In order to stress
|
||||
the node storage only hosPath mode is currently supported
|
||||
type:
|
||||
type_id: ref
|
||||
id: Volume
|
||||
required: true
|
||||
steps:
|
||||
workload_loop:
|
||||
kind: foreach
|
||||
items: !expr $.input.input_list
|
||||
workflow: sub-workflow.yaml
|
||||
parallelism: 1000
|
||||
outputs:
|
||||
success:
|
||||
workloads: !expr $.steps.workload_loop.outputs.success.data
|
||||
|
||||
|
||||
|
||||
@@ -1,12 +0,0 @@
|
||||
---
|
||||
deployers:
|
||||
image:
|
||||
connection: {}
|
||||
deployer_name: kubernetes
|
||||
log:
|
||||
level: debug
|
||||
logged_outputs:
|
||||
error:
|
||||
level: error
|
||||
success:
|
||||
level: debug
|
||||
@@ -1,14 +0,0 @@
|
||||
input_list:
|
||||
- duration: 30s
|
||||
vm_bytes: 10%
|
||||
vm_workers: 2
|
||||
node_selector:
|
||||
kubernetes.io/hostname: kind-worker2
|
||||
# node selector example
|
||||
# node_selector:
|
||||
# kubernetes.io/hostname: master
|
||||
kubeconfig: ""
|
||||
namespace: default
|
||||
|
||||
# duplicate this section to run simultaneous stressors in the same run
|
||||
|
||||
@@ -1,73 +0,0 @@
|
||||
version: v0.2.0
|
||||
input:
|
||||
root: RootObject
|
||||
objects:
|
||||
RootObject:
|
||||
id: RootObject
|
||||
properties:
|
||||
input_list:
|
||||
type:
|
||||
type_id: list
|
||||
items:
|
||||
id: input_item
|
||||
type_id: object
|
||||
properties:
|
||||
kubeconfig:
|
||||
display:
|
||||
description: The complete kubeconfig file as a string
|
||||
name: Kubeconfig file contents
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
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
|
||||
duration:
|
||||
display:
|
||||
name: duration the scenario expressed in seconds
|
||||
description: stop stress test after T seconds. One can also specify the units of time in seconds, minutes, hours, days or years with the suffix s, m, h, d or y
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
vm_workers:
|
||||
display:
|
||||
description: Number of VM stressors to be run (0 means 1 stressor per CPU)
|
||||
name: Number of VM stressors
|
||||
type:
|
||||
type_id: integer
|
||||
required: true
|
||||
vm_bytes:
|
||||
display:
|
||||
description: N bytes per vm process, the default is 256MB. The size can be expressed in units of Bytes, KBytes, MBytes and GBytes using the suffix b, k, m or g.
|
||||
name: Kubeconfig file contents
|
||||
type:
|
||||
type_id: string
|
||||
required: true
|
||||
steps:
|
||||
workload_loop:
|
||||
kind: foreach
|
||||
items: !expr $.input.input_list
|
||||
workflow: sub-workflow.yaml
|
||||
parallelism: 1000
|
||||
outputs:
|
||||
success:
|
||||
workloads: !expr $.steps.workload_loop.outputs.success.data
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
@@ -1,8 +0,0 @@
|
||||
scenarios:
|
||||
- name: "kill test container"
|
||||
namespace: "default"
|
||||
label_selector: "scenario=container"
|
||||
container_name: "fedtools"
|
||||
action: 1
|
||||
count: 1
|
||||
retry_wait: 60
|
||||
@@ -1,8 +0,0 @@
|
||||
network_chaos: # Scenario to create an outage by simulating random variations in the network.
|
||||
duration: 10 # seconds
|
||||
instance_count: 1
|
||||
node_name: kind-worker2
|
||||
execution: serial
|
||||
egress:
|
||||
bandwidth: 100mbit
|
||||
|
||||
@@ -1,7 +0,0 @@
|
||||
scenarios:
|
||||
- action: delete
|
||||
namespace: "^namespace-scenario$"
|
||||
label_selector:
|
||||
runs: 1
|
||||
sleep: 15
|
||||
wait_time: 30
|
||||
@@ -1,5 +0,0 @@
|
||||
time_scenarios:
|
||||
- action: skew_time
|
||||
object_type: pod
|
||||
label_selector: scenario=time-skew
|
||||
container_name: ""
|
||||
29
CI/templates/service_hijacking.yaml
Normal file
29
CI/templates/service_hijacking.yaml
Normal file
@@ -0,0 +1,29 @@
|
||||
apiVersion: v1
|
||||
kind: Pod
|
||||
metadata:
|
||||
name: nginx
|
||||
labels:
|
||||
app.kubernetes.io/name: proxy
|
||||
spec:
|
||||
containers:
|
||||
- name: nginx
|
||||
image: nginx:stable
|
||||
ports:
|
||||
- containerPort: 80
|
||||
name: http-web-svc
|
||||
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
name: nginx-service
|
||||
spec:
|
||||
selector:
|
||||
app.kubernetes.io/name: proxy
|
||||
type: NodePort
|
||||
ports:
|
||||
- name: name-of-service-port
|
||||
protocol: TCP
|
||||
port: 80
|
||||
targetPort: http-web-svc
|
||||
nodePort: 30036
|
||||
@@ -1,15 +1,23 @@
|
||||
ERRORED=false
|
||||
|
||||
function finish {
|
||||
if [ $? -eq 1 ] && [ $ERRORED != "true" ]
|
||||
if [ $? != 0 ] && [ $ERRORED != "true" ]
|
||||
then
|
||||
error
|
||||
fi
|
||||
}
|
||||
|
||||
function error {
|
||||
echo "Error caught."
|
||||
ERRORED=true
|
||||
exit_code=$?
|
||||
if [ $exit_code == 1 ]
|
||||
then
|
||||
echo "Error caught."
|
||||
ERRORED=true
|
||||
elif [ $exit_code == 2 ]
|
||||
then
|
||||
echo "Run with exit code 2 detected, it is expected, wrapping the exit code with 0 to avoid pipeline failure"
|
||||
exit 0
|
||||
fi
|
||||
}
|
||||
|
||||
function get_node {
|
||||
|
||||
@@ -7,10 +7,11 @@ trap finish EXIT
|
||||
|
||||
|
||||
function functional_test_app_outage {
|
||||
yq -i '.application_outage.pod_selector={"scenario":"outage"}' CI/scenarios/app_outage.yaml
|
||||
yq -i '.application_outage.namespace="default"' CI/scenarios/app_outage.yaml
|
||||
export scenario_type="application_outages"
|
||||
export scenario_file="CI/scenarios/app_outage.yaml"
|
||||
yq -i '.application_outage.duration=10' scenarios/openshift/app_outage.yaml
|
||||
yq -i '.application_outage.pod_selector={"scenario":"outage"}' scenarios/openshift/app_outage.yaml
|
||||
yq -i '.application_outage.namespace="default"' scenarios/openshift/app_outage.yaml
|
||||
export scenario_type="application_outages_scenarios"
|
||||
export scenario_file="scenarios/openshift/app_outage.yaml"
|
||||
export post_config=""
|
||||
envsubst < CI/config/common_test_config.yaml > CI/config/app_outage.yaml
|
||||
python3 -m coverage run -a run_kraken.py -c CI/config/app_outage.yaml
|
||||
|
||||
@@ -7,8 +7,9 @@ trap finish EXIT
|
||||
|
||||
|
||||
function functional_test_arca_cpu_hog {
|
||||
export scenario_type="arcaflow_scenarios"
|
||||
export scenario_file="CI/scenarios/arcaflow/cpu-hog/input.yaml"
|
||||
yq -i '.input_list[0].node_selector={"kubernetes.io/hostname":"kind-worker2"}' scenarios/kube/cpu-hog/input.yaml
|
||||
export scenario_type="hog_scenarios"
|
||||
export scenario_file="scenarios/kube/cpu-hog/input.yaml"
|
||||
export post_config=""
|
||||
envsubst < CI/config/common_test_config.yaml > CI/config/arca_cpu_hog.yaml
|
||||
python3 -m coverage run -a run_kraken.py -c CI/config/arca_cpu_hog.yaml
|
||||
|
||||
@@ -7,8 +7,9 @@ trap finish EXIT
|
||||
|
||||
|
||||
function functional_test_arca_io_hog {
|
||||
export scenario_type="arcaflow_scenarios"
|
||||
export scenario_file="CI/scenarios/arcaflow/io-hog/input.yaml"
|
||||
yq -i '.input_list[0].node_selector={"kubernetes.io/hostname":"kind-worker2"}' scenarios/kube/io-hog/input.yaml
|
||||
export scenario_type="hog_scenarios"
|
||||
export scenario_file="scenarios/kube/io-hog/input.yaml"
|
||||
export post_config=""
|
||||
envsubst < CI/config/common_test_config.yaml > CI/config/arca_io_hog.yaml
|
||||
python3 -m coverage run -a run_kraken.py -c CI/config/arca_io_hog.yaml
|
||||
|
||||
@@ -7,8 +7,9 @@ trap finish EXIT
|
||||
|
||||
|
||||
function functional_test_arca_memory_hog {
|
||||
export scenario_type="arcaflow_scenarios"
|
||||
export scenario_file="CI/scenarios/arcaflow/memory-hog/input.yaml"
|
||||
yq -i '.input_list[0].node_selector={"kubernetes.io/hostname":"kind-worker2"}' scenarios/kube/memory-hog/input.yaml
|
||||
export scenario_type="hog_scenarios"
|
||||
export scenario_file="scenarios/kube/memory-hog/input.yaml"
|
||||
export post_config=""
|
||||
envsubst < CI/config/common_test_config.yaml > CI/config/arca_memory_hog.yaml
|
||||
python3 -m coverage run -a run_kraken.py -c CI/config/arca_memory_hog.yaml
|
||||
|
||||
@@ -8,9 +8,11 @@ trap finish EXIT
|
||||
pod_file="CI/scenarios/hello_pod.yaml"
|
||||
|
||||
function functional_test_container_crash {
|
||||
|
||||
yq -i '.scenarios[0].namespace="default"' scenarios/openshift/container_etcd.yml
|
||||
yq -i '.scenarios[0].label_selector="scenario=container"' scenarios/openshift/container_etcd.yml
|
||||
yq -i '.scenarios[0].container_name="fedtools"' scenarios/openshift/container_etcd.yml
|
||||
export scenario_type="container_scenarios"
|
||||
export scenario_file="- CI/scenarios/container_scenario.yml"
|
||||
export scenario_file="scenarios/openshift/container_etcd.yml"
|
||||
export post_config=""
|
||||
envsubst < CI/config/common_test_config.yaml > CI/config/container_config.yaml
|
||||
|
||||
|
||||
@@ -6,13 +6,14 @@ trap error ERR
|
||||
trap finish EXIT
|
||||
|
||||
function funtional_test_namespace_deletion {
|
||||
export scenario_type="namespace_scenarios"
|
||||
export scenario_file="- CI/scenarios/network_diagnostics_namespace.yaml"
|
||||
export scenario_type="service_disruption_scenarios"
|
||||
export scenario_file="scenarios/openshift/ingress_namespace.yaml"
|
||||
export post_config=""
|
||||
yq '.scenarios.[0].namespace="^openshift-network-diagnostics$"' -i CI/scenarios/network_diagnostics_namespace.yaml
|
||||
yq '.scenarios[0].namespace="^namespace-scenario$"' -i scenarios/openshift/ingress_namespace.yaml
|
||||
yq '.scenarios[0].wait_time=30' -i scenarios/openshift/ingress_namespace.yaml
|
||||
yq '.scenarios[0].action="delete"' -i scenarios/openshift/ingress_namespace.yaml
|
||||
envsubst < CI/config/common_test_config.yaml > CI/config/namespace_config.yaml
|
||||
python3 -m coverage run -a run_kraken.py -c CI/config/namespace_config.yaml
|
||||
echo $?
|
||||
echo "Namespace scenario test: Success"
|
||||
}
|
||||
|
||||
|
||||
@@ -7,9 +7,16 @@ trap finish EXIT
|
||||
|
||||
|
||||
function functional_test_network_chaos {
|
||||
yq -i '.network_chaos.duration=10' scenarios/openshift/network_chaos.yaml
|
||||
yq -i '.network_chaos.node_name="kind-worker2"' scenarios/openshift/network_chaos.yaml
|
||||
yq -i '.network_chaos.egress.bandwidth="100mbit"' scenarios/openshift/network_chaos.yaml
|
||||
yq -i 'del(.network_chaos.interfaces)' scenarios/openshift/network_chaos.yaml
|
||||
yq -i 'del(.network_chaos.label_selector)' scenarios/openshift/network_chaos.yaml
|
||||
yq -i 'del(.network_chaos.egress.latency)' scenarios/openshift/network_chaos.yaml
|
||||
yq -i 'del(.network_chaos.egress.loss)' scenarios/openshift/network_chaos.yaml
|
||||
|
||||
export scenario_type="network_chaos"
|
||||
export scenario_file="CI/scenarios/network_chaos.yaml"
|
||||
export scenario_type="network_chaos_scenarios"
|
||||
export scenario_file="scenarios/openshift/network_chaos.yaml"
|
||||
export post_config=""
|
||||
envsubst < CI/config/common_test_config.yaml > CI/config/network_chaos.yaml
|
||||
python3 -m coverage run -a run_kraken.py -c CI/config/network_chaos.yaml
|
||||
|
||||
114
CI/tests/test_service_hijacking.sh
Normal file
114
CI/tests/test_service_hijacking.sh
Normal file
@@ -0,0 +1,114 @@
|
||||
set -xeEo pipefail
|
||||
|
||||
source CI/tests/common.sh
|
||||
|
||||
trap error ERR
|
||||
trap finish EXIT
|
||||
# port mapping has been configured in kind-config.yml
|
||||
SERVICE_URL=http://localhost:8888
|
||||
PAYLOAD_GET_1="{ \
|
||||
\"status\":\"internal server error\" \
|
||||
}"
|
||||
STATUS_CODE_GET_1=500
|
||||
|
||||
PAYLOAD_PATCH_1="resource patched"
|
||||
STATUS_CODE_PATCH_1=201
|
||||
|
||||
PAYLOAD_POST_1="{ \
|
||||
\"status\": \"unauthorized\" \
|
||||
}"
|
||||
STATUS_CODE_POST_1=401
|
||||
|
||||
PAYLOAD_GET_2="{ \
|
||||
\"status\":\"resource created\" \
|
||||
}"
|
||||
STATUS_CODE_GET_2=201
|
||||
|
||||
PAYLOAD_PATCH_2="bad request"
|
||||
STATUS_CODE_PATCH_2=400
|
||||
|
||||
PAYLOAD_POST_2="not found"
|
||||
STATUS_CODE_POST_2=404
|
||||
|
||||
JSON_MIME="application/json"
|
||||
TEXT_MIME="text/plain; charset=utf-8"
|
||||
|
||||
function functional_test_service_hijacking {
|
||||
|
||||
export scenario_type="service_hijacking_scenarios"
|
||||
export scenario_file="scenarios/kube/service_hijacking.yaml"
|
||||
export post_config=""
|
||||
envsubst < CI/config/common_test_config.yaml > CI/config/service_hijacking.yaml
|
||||
python3 -m coverage run -a run_kraken.py -c CI/config/service_hijacking.yaml > /dev/null 2>&1 &
|
||||
PID=$!
|
||||
#Waiting the hijacking to have effect
|
||||
COUNTER=0
|
||||
while [ `curl -X GET -s -o /dev/null -I -w "%{http_code}" $SERVICE_URL/list/index.php` == 404 ]
|
||||
do
|
||||
echo "waiting scenario to kick in."
|
||||
sleep 1
|
||||
COUNTER=$((COUNTER+1))
|
||||
[ $COUNTER -eq "100" ] && echo "maximum number of retry reached, test failed" && exit 1
|
||||
done
|
||||
|
||||
#Checking Step 1 GET on /list/index.php
|
||||
OUT_GET="`curl -X GET -s $SERVICE_URL/list/index.php`"
|
||||
OUT_CONTENT=`curl -X GET -s -o /dev/null -I -w "%{content_type}" $SERVICE_URL/list/index.php`
|
||||
OUT_STATUS_CODE=`curl -X GET -s -o /dev/null -I -w "%{http_code}" $SERVICE_URL/list/index.php`
|
||||
[ "${PAYLOAD_GET_1//[$'\t\r\n ']}" == "${OUT_GET//[$'\t\r\n ']}" ] && echo "Step 1 GET Payload OK" || (echo "Payload did not match. Test failed." && exit 1)
|
||||
[ "$OUT_STATUS_CODE" == "$STATUS_CODE_GET_1" ] && echo "Step 1 GET Status Code OK" || (echo " Step 1 GET status code did not match. Test failed." && exit 1)
|
||||
[ "$OUT_CONTENT" == "$JSON_MIME" ] && echo "Step 1 GET MIME OK" || (echo " Step 1 GET MIME did not match. Test failed." && exit 1)
|
||||
|
||||
#Checking Step 1 POST on /list/index.php
|
||||
OUT_POST="`curl -s -X POST $SERVICE_URL/list/index.php`"
|
||||
OUT_STATUS_CODE=`curl -X POST -s -o /dev/null -I -w "%{http_code}" $SERVICE_URL/list/index.php`
|
||||
OUT_CONTENT=`curl -X POST -s -o /dev/null -I -w "%{content_type}" $SERVICE_URL/list/index.php`
|
||||
[ "${PAYLOAD_POST_1//[$'\t\r\n ']}" == "${OUT_POST//[$'\t\r\n ']}" ] && echo "Step 1 POST Payload OK" || (echo "Payload did not match. Test failed." && exit 1)
|
||||
[ "$OUT_STATUS_CODE" == "$STATUS_CODE_POST_1" ] && echo "Step 1 POST Status Code OK" || (echo "Step 1 POST status code did not match. Test failed." && exit 1)
|
||||
[ "$OUT_CONTENT" == "$JSON_MIME" ] && echo "Step 1 POST MIME OK" || (echo " Step 1 POST MIME did not match. Test failed." && exit 1)
|
||||
|
||||
#Checking Step 1 PATCH on /patch
|
||||
OUT_PATCH="`curl -s -X PATCH $SERVICE_URL/patch`"
|
||||
OUT_STATUS_CODE=`curl -X PATCH -s -o /dev/null -I -w "%{http_code}" $SERVICE_URL/patch`
|
||||
OUT_CONTENT=`curl -X PATCH -s -o /dev/null -I -w "%{content_type}" $SERVICE_URL/patch`
|
||||
[ "${PAYLOAD_PATCH_1//[$'\t\r\n ']}" == "${OUT_PATCH//[$'\t\r\n ']}" ] && echo "Step 1 PATCH Payload OK" || (echo "Payload did not match. Test failed." && exit 1)
|
||||
[ "$OUT_STATUS_CODE" == "$STATUS_CODE_PATCH_1" ] && echo "Step 1 PATCH Status Code OK" || (echo "Step 1 PATCH status code did not match. Test failed." && exit 1)
|
||||
[ "$OUT_CONTENT" == "$TEXT_MIME" ] && echo "Step 1 PATCH MIME OK" || (echo " Step 1 PATCH MIME did not match. Test failed." && exit 1)
|
||||
# wait for the next step
|
||||
sleep 16
|
||||
|
||||
#Checking Step 2 GET on /list/index.php
|
||||
OUT_GET="`curl -X GET -s $SERVICE_URL/list/index.php`"
|
||||
OUT_CONTENT=`curl -X GET -s -o /dev/null -I -w "%{content_type}" $SERVICE_URL/list/index.php`
|
||||
OUT_STATUS_CODE=`curl -X GET -s -o /dev/null -I -w "%{http_code}" $SERVICE_URL/list/index.php`
|
||||
[ "${PAYLOAD_GET_2//[$'\t\r\n ']}" == "${OUT_GET//[$'\t\r\n ']}" ] && echo "Step 2 GET Payload OK" || (echo "Step 2 GET Payload did not match. Test failed." && exit 1)
|
||||
[ "$OUT_STATUS_CODE" == "$STATUS_CODE_GET_2" ] && echo "Step 2 GET Status Code OK" || (echo "Step 2 GET status code did not match. Test failed." && exit 1)
|
||||
[ "$OUT_CONTENT" == "$JSON_MIME" ] && echo "Step 2 GET MIME OK" || (echo " Step 2 GET MIME did not match. Test failed." && exit 1)
|
||||
|
||||
#Checking Step 2 POST on /list/index.php
|
||||
OUT_POST="`curl -s -X POST $SERVICE_URL/list/index.php`"
|
||||
OUT_CONTENT=`curl -X POST -s -o /dev/null -I -w "%{content_type}" $SERVICE_URL/list/index.php`
|
||||
OUT_STATUS_CODE=`curl -X POST -s -o /dev/null -I -w "%{http_code}" $SERVICE_URL/list/index.php`
|
||||
[ "${PAYLOAD_POST_2//[$'\t\r\n ']}" == "${OUT_POST//[$'\t\r\n ']}" ] && echo "Step 2 POST Payload OK" || (echo "Step 2 POST Payload did not match. Test failed." && exit 1)
|
||||
[ "$OUT_STATUS_CODE" == "$STATUS_CODE_POST_2" ] && echo "Step 2 POST Status Code OK" || (echo "Step 2 POST status code did not match. Test failed." && exit 1)
|
||||
[ "$OUT_CONTENT" == "$TEXT_MIME" ] && echo "Step 2 POST MIME OK" || (echo " Step 2 POST MIME did not match. Test failed." && exit 1)
|
||||
|
||||
#Checking Step 2 PATCH on /patch
|
||||
OUT_PATCH="`curl -s -X PATCH $SERVICE_URL/patch`"
|
||||
OUT_CONTENT=`curl -X PATCH -s -o /dev/null -I -w "%{content_type}" $SERVICE_URL/patch`
|
||||
OUT_STATUS_CODE=`curl -X PATCH -s -o /dev/null -I -w "%{http_code}" $SERVICE_URL/patch`
|
||||
[ "${PAYLOAD_PATCH_2//[$'\t\r\n ']}" == "${OUT_PATCH//[$'\t\r\n ']}" ] && echo "Step 2 PATCH Payload OK" || (echo "Step 2 PATCH Payload did not match. Test failed." && exit 1)
|
||||
[ "$OUT_STATUS_CODE" == "$STATUS_CODE_PATCH_2" ] && echo "Step 2 PATCH Status Code OK" || (echo "Step 2 PATCH status code did not match. Test failed." && exit 1)
|
||||
[ "$OUT_CONTENT" == "$TEXT_MIME" ] && echo "Step 2 PATCH MIME OK" || (echo " Step 2 PATCH MIME did not match. Test failed." && exit 1)
|
||||
wait $PID
|
||||
|
||||
# now checking if service has been restore correctly and nginx responds correctly
|
||||
curl -s $SERVICE_URL | grep nginx! && echo "BODY: Service restored!" || (echo "BODY: failed to restore service" && exit 1)
|
||||
OUT_STATUS_CODE=`curl -X GET -s -o /dev/null -I -w "%{http_code}" $SERVICE_URL`
|
||||
[ "$OUT_STATUS_CODE" == "200" ] && echo "STATUS_CODE: Service restored!" || (echo "STATUS_CODE: failed to restore service" && exit 1)
|
||||
|
||||
echo "Service Hijacking Chaos test: Success"
|
||||
}
|
||||
|
||||
|
||||
functional_test_service_hijacking
|
||||
36
CI/tests/test_telemetry.sh
Normal file
36
CI/tests/test_telemetry.sh
Normal file
@@ -0,0 +1,36 @@
|
||||
set -xeEo pipefail
|
||||
|
||||
source CI/tests/common.sh
|
||||
|
||||
trap error ERR
|
||||
trap finish EXIT
|
||||
|
||||
|
||||
function functional_test_telemetry {
|
||||
AWS_CLI=`which aws`
|
||||
[ -z "$AWS_CLI" ]&& echo "AWS cli not found in path" && exit 1
|
||||
[ -z "$AWS_BUCKET" ] && echo "AWS bucket not set in environment" && exit 1
|
||||
|
||||
export RUN_TAG="funtest-telemetry"
|
||||
yq -i '.telemetry.enabled=True' CI/config/common_test_config.yaml
|
||||
yq -i '.telemetry.full_prometheus_backup=True' CI/config/common_test_config.yaml
|
||||
yq -i '.performance_monitoring.check_critical_alerts=True' CI/config/common_test_config.yaml
|
||||
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="hog_scenarios"
|
||||
export scenario_file="scenarios/kube/cpu-hog/input.yaml"
|
||||
export post_config=""
|
||||
envsubst < CI/config/common_test_config.yaml > CI/config/telemetry.yaml
|
||||
retval=$(python3 -m coverage run -a run_kraken.py -c CI/config/telemetry.yaml)
|
||||
RUN_FOLDER=`cat CI/out/test_telemetry.out | grep amazonaws.com | sed -rn "s#.*https:\/\/.*\/files/(.*)#\1#p"`
|
||||
$AWS_CLI s3 ls "s3://$AWS_BUCKET/$RUN_FOLDER/" | awk '{ print $4 }' > s3_remote_files
|
||||
echo "checking if telemetry files are uploaded on s3"
|
||||
cat s3_remote_files | grep critical-alerts-00.log || ( echo "FAILED: critical-alerts-00.log not uploaded" && exit 1 )
|
||||
cat s3_remote_files | grep prometheus-00.tar || ( echo "FAILED: prometheus backup not uploaded" && exit 1 )
|
||||
cat s3_remote_files | grep telemetry.json || ( echo "FAILED: telemetry.json not uploaded" && exit 1 )
|
||||
echo "all files uploaded!"
|
||||
echo "Telemetry Collection: Success"
|
||||
}
|
||||
|
||||
functional_test_telemetry
|
||||
@@ -7,8 +7,12 @@ trap finish EXIT
|
||||
|
||||
|
||||
function functional_test_time_scenario {
|
||||
yq -i '.time_scenarios[0].label_selector="scenario=time-skew"' scenarios/openshift/time_scenarios_example.yml
|
||||
yq -i '.time_scenarios[0].container_name=""' scenarios/openshift/time_scenarios_example.yml
|
||||
yq -i '.time_scenarios[0].namespace="default"' scenarios/openshift/time_scenarios_example.yml
|
||||
yq -i '.time_scenarios[1].label_selector="kubernetes.io/hostname=kind-worker2"' scenarios/openshift/time_scenarios_example.yml
|
||||
export scenario_type="time_scenarios"
|
||||
export scenario_file="CI/scenarios/time_scenarios.yml"
|
||||
export scenario_file="scenarios/openshift/time_scenarios_example.yml"
|
||||
export post_config=""
|
||||
envsubst < CI/config/common_test_config.yaml > CI/config/time_config.yaml
|
||||
|
||||
|
||||
36
README.md
36
README.md
@@ -1,6 +1,7 @@
|
||||
# Krkn aka Kraken
|
||||
[](https://quay.io/repository/redhat-chaos/krkn?tab=tags&tag=latest)
|
||||

|
||||

|
||||

|
||||

|
||||
|
||||

|
||||
|
||||
@@ -40,18 +41,6 @@ After installation, refer back to the below sections for supported scenarios and
|
||||
#### Running Kraken with minimal configuration tweaks
|
||||
For cases where you want to run Kraken with minimal configuration changes, refer to [krkn-hub](https://github.com/krkn-chaos/krkn-hub). One use case is CI integration where you do not want to carry around different configuration files for the scenarios.
|
||||
|
||||
### Setting up infrastructure dependencies
|
||||
Kraken indexes the metrics specified in the profile into Elasticsearch in addition to leveraging Cerberus for understanding the health of the Kubernetes cluster under test. More information on the features is documented below. The infrastructure pieces can be easily installed and uninstalled by running:
|
||||
|
||||
```
|
||||
$ cd kraken
|
||||
$ podman-compose up or $ docker-compose up # Spins up the containers specified in the docker-compose.yml file present in the run directory.
|
||||
$ podman-compose down or $ docker-compose down # Delete the containers installed.
|
||||
```
|
||||
This will manage the Cerberus and Elasticsearch containers on the host on which you are running Kraken.
|
||||
|
||||
**NOTE**: Make sure you have enough resources (memory and disk) on the machine on top of which the containers are running as Elasticsearch is resource intensive. Cerberus monitors the system components by default, the [config](config/cerberus.yaml) can be tweaked to add applications namespaces, routes and other components to monitor as well. The command will keep running until killed since detached mode is not supported as of now.
|
||||
|
||||
|
||||
### Config
|
||||
Instructions on how to setup the config and the options supported can be found at [Config](docs/config.md).
|
||||
@@ -74,12 +63,14 @@ Scenario type | Kubernetes
|
||||
[PVC scenario](docs/pvc_scenario.md) | :heavy_check_mark: |
|
||||
[Network_Chaos](docs/network_chaos.md) | :heavy_check_mark: |
|
||||
[ManagedCluster Scenarios](docs/managedcluster_scenarios.md) | :heavy_check_mark: |
|
||||
[Service Hijacking Scenarios](docs/service_hijacking_scenarios.md) | :heavy_check_mark: |
|
||||
[SYN Flood Scenarios](docs/syn_flood_scenarios.md) | :heavy_check_mark: |
|
||||
|
||||
|
||||
### Kraken scenario pass/fail criteria and report
|
||||
It is important to make sure to check if the targeted component recovered from the chaos injection and also if the Kubernetes cluster is healthy as failures in one component can have an adverse impact on other components. Kraken does this by:
|
||||
- Having built in checks for pod and node based scenarios to ensure the expected number of replicas and nodes are up. It also supports running custom scripts with the checks.
|
||||
- Leveraging [Cerberus](https://github.com/redhat-chaos/cerberus) to monitor the cluster under test and consuming the aggregated go/no-go signal to determine pass/fail post chaos. It is highly recommended to turn on the Cerberus health check feature available in Kraken. Instructions on installing and setting up Cerberus can be found [here](https://github.com/openshift-scale/cerberus#installation) or can be installed from Kraken using the [instructions](https://github.com/redhat-chaos/krkn#setting-up-infrastructure-dependencies). Once Cerberus is up and running, set cerberus_enabled to True and cerberus_url to the url where Cerberus publishes go/no-go signal in the Kraken config file. Cerberus can monitor [application routes](https://github.com/redhat-chaos/cerberus/blob/main/docs/config.md#watch-routes) during the chaos and fails the run if it encounters downtime as it is a potential downtime in a customers, or users environment as well. It is especially important during the control plane chaos scenarios including the API server, Etcd, Ingress etc. It can be enabled by setting `check_applicaton_routes: True` in the [Kraken config](https://github.com/redhat-chaos/krkn/blob/main/config/config.yaml) provided application routes are being monitored in the [cerberus config](https://github.com/redhat-chaos/krkn/blob/main/config/cerberus.yaml).
|
||||
- Leveraging [Cerberus](https://github.com/krkn-chaos/cerberus) to monitor the cluster under test and consuming the aggregated go/no-go signal to determine pass/fail post chaos. It is highly recommended to turn on the Cerberus health check feature available in Kraken. Instructions on installing and setting up Cerberus can be found [here](https://github.com/openshift-scale/cerberus#installation) or can be installed from Kraken using the [instructions](https://github.com/krkn-chaos/krkn#setting-up-infrastructure-dependencies). Once Cerberus is up and running, set cerberus_enabled to True and cerberus_url to the url where Cerberus publishes go/no-go signal in the Kraken config file. Cerberus can monitor [application routes](https://github.com/redhat-chaos/cerberus/blob/main/docs/config.md#watch-routes) during the chaos and fails the run if it encounters downtime as it is a potential downtime in a customers, or users environment as well. It is especially important during the control plane chaos scenarios including the API server, Etcd, Ingress etc. It can be enabled by setting `check_applicaton_routes: True` in the [Kraken config](https://github.com/redhat-chaos/krkn/blob/main/config/config.yaml) provided application routes are being monitored in the [cerberus config](https://github.com/redhat-chaos/krkn/blob/main/config/cerberus.yaml).
|
||||
- Leveraging built-in alert collection feature to fail the runs in case of critical alerts.
|
||||
|
||||
### Signaling
|
||||
@@ -103,7 +94,7 @@ Information on enabling and leveraging this feature can be found [here](docs/SLO
|
||||
|
||||
### OCM / ACM integration
|
||||
|
||||
Kraken supports injecting faults into [Open Cluster Management (OCM)](https://open-cluster-management.io/) and [Red Hat Advanced Cluster Management for Kubernetes (ACM)](https://www.redhat.com/en/technologies/management/advanced-cluster-management) managed clusters through [ManagedCluster Scenarios](docs/managedcluster_scenarios.md).
|
||||
Kraken supports injecting faults into [Open Cluster Management (OCM)](https://open-cluster-management.io/) and [Red Hat Advanced Cluster Management for Kubernetes (ACM)](https://www.krkn.com/en/technologies/management/advanced-cluster-management) managed clusters through [ManagedCluster Scenarios](docs/managedcluster_scenarios.md).
|
||||
|
||||
|
||||
### Blogs and other useful resources
|
||||
@@ -128,7 +119,14 @@ If adding a new scenario or tweaking the main config, be sure to add in updates
|
||||
Please read [this file]((CI/README.md#adding-a-test-case)) for more information on updates.
|
||||
|
||||
|
||||
### Scenario Plugin Development
|
||||
|
||||
If you're gearing up to develop new scenarios, take a moment to review our
|
||||
[Scenario Plugin API Documentation](docs/scenario_plugin_api.md).
|
||||
It’s the perfect starting point to tap into your chaotic creativity!
|
||||
|
||||
### Community
|
||||
Key Members(slack_usernames/full name): paigerube14/Paige Rubendall, mffiedler/Mike Fiedler, ravielluri/Naga Ravi Chaitanya Elluri.
|
||||
* [**#krkn on Kubernetes Slack**](https://kubernetes.slack.com)
|
||||
* [**#forum-chaos on CoreOS Slack internal to Red Hat**](https://coreos.slack.com)
|
||||
Key Members(slack_usernames/full name): paigerube14/Paige Rubendall, mffiedler/Mike Fiedler, tsebasti/Tullio Sebastiani, yogi/Yogananth Subramanian, sahil/Sahil Shah, pradeep/Pradeep Surisetty and ravielluri/Naga Ravi Chaitanya Elluri.
|
||||
* [**#krkn on Kubernetes Slack**](https://kubernetes.slack.com/messages/C05SFMHRWK1)
|
||||
|
||||
The Linux Foundation® (TLF) has registered trademarks and uses trademarks. For a list of TLF trademarks, see [Trademark Usage](https://www.linuxfoundation.org/legal/trademark-usage).
|
||||
|
||||
23
ROADMAP.md
23
ROADMAP.md
@@ -2,14 +2,15 @@
|
||||
|
||||
Following are a list of enhancements that we are planning to work on adding support in Krkn. Of course any help/contributions are greatly appreciated.
|
||||
|
||||
- [ ] [Ability to run multiple chaos scenarios in parallel under load to mimic real world outages](https://github.com/redhat-chaos/krkn/issues/424)
|
||||
- [x] [Centralized storage for chaos experiments artifacts](https://github.com/redhat-chaos/krkn/issues/423)
|
||||
- [ ] [Support for causing DNS outages](https://github.com/redhat-chaos/krkn/issues/394)
|
||||
- [x] [Chaos recommender](https://github.com/redhat-chaos/krkn/tree/main/utils/chaos-recommender) to suggest scenarios having probability of impacting the service under test using profiling results
|
||||
- [ ] Chaos AI integration to improve and automate test coverage
|
||||
- [x] [Support for pod level network traffic shaping](https://github.com/redhat-chaos/krkn/issues/393)
|
||||
- [ ] [Ability to visualize the metrics that are being captured by Kraken and stored in Elasticsearch](https://github.com/redhat-chaos/krkn/issues/124)
|
||||
- [ ] Support for running all the scenarios of Kraken on Kubernetes distribution - see https://github.com/redhat-chaos/krkn/issues/185, https://github.com/redhat-chaos/krkn/issues/186
|
||||
- [ ] Continue to improve [Chaos Testing Guide](https://redhat-chaos.github.io/krkn) in terms of adding best practices, test environment recommendations and scenarios to make sure the OpenShift platform, as well the applications running on top it, are resilient and performant under chaotic conditions.
|
||||
- [ ] [Switch documentation references to Kubernetes](https://github.com/redhat-chaos/krkn/issues/495)
|
||||
- [ ] [OCP and Kubernetes functionalities segregation](https://github.com/redhat-chaos/krkn/issues/497)
|
||||
- [ ] [Ability to run multiple chaos scenarios in parallel under load to mimic real world outages](https://github.com/krkn-chaos/krkn/issues/424)
|
||||
- [x] [Centralized storage for chaos experiments artifacts](https://github.com/krkn-chaos/krkn/issues/423)
|
||||
- [ ] [Support for causing DNS outages](https://github.com/krkn-chaos/krkn/issues/394)
|
||||
- [x] [Chaos recommender](https://github.com/krkn-chaos/krkn/tree/main/utils/chaos-recommender) to suggest scenarios having probability of impacting the service under test using profiling results
|
||||
- [] Chaos AI integration to improve test coverage while reducing fault space to save costs and execution time
|
||||
- [x] [Support for pod level network traffic shaping](https://github.com/krkn-chaos/krkn/issues/393)
|
||||
- [ ] [Ability to visualize the metrics that are being captured by Kraken and stored in Elasticsearch](https://github.com/krkn-chaos/krkn/issues/124)
|
||||
- [x] Support for running all the scenarios of Kraken on Kubernetes distribution - see https://github.com/krkn-chaos/krkn/issues/185, https://github.com/redhat-chaos/krkn/issues/186
|
||||
- [x] Continue to improve [Chaos Testing Guide](https://krkn-chaos.github.io/krkn) in terms of adding best practices, test environment recommendations and scenarios to make sure the OpenShift platform, as well the applications running on top it, are resilient and performant under chaotic conditions.
|
||||
- [x] [Switch documentation references to Kubernetes](https://github.com/krkn-chaos/krkn/issues/495)
|
||||
- [x] [OCP and Kubernetes functionalities segregation](https://github.com/krkn-chaos/krkn/issues/497)
|
||||
- [x] [Krknctl - client for running Krkn scenarios with ease](https://github.com/krkn-chaos/krknctl)
|
||||
|
||||
@@ -8,7 +8,7 @@
|
||||
description: 10 minutes avg. 99th etcd fsync latency on {{$labels.pod}} higher than 1s. {{$value}}s
|
||||
severity: error
|
||||
|
||||
- expr: avg_over_time(histogram_quantile(0.99, rate(etcd_disk_backend_commit_duration_seconds_bucket[2m]))[10m:]) > 0.007
|
||||
- expr: avg_over_time(histogram_quantile(0.99, rate(etcd_disk_backend_commit_duration_seconds_bucket[2m]))[10m:]) > 0.03
|
||||
description: 10 minutes avg. 99th etcd commit latency on {{$labels.pod}} higher than 30ms. {{$value}}s
|
||||
severity: warning
|
||||
|
||||
@@ -88,3 +88,42 @@
|
||||
- expr: ALERTS{severity="critical", alertstate="firing"} > 0
|
||||
description: Critical prometheus alert. {{$labels.alertname}}
|
||||
severity: warning
|
||||
|
||||
# etcd CPU and usage increase
|
||||
- expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-etcd', container='etcd'}[1m])) * 100 / sum(machine_cpu_cores) > 5
|
||||
description: Etcd CPU usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
# etcd memory usage increase
|
||||
- expr: sum(deriv(container_memory_usage_bytes{image!='', namespace='openshift-etcd', container='etcd'}[5m])) * 100 / sum(node_memory_MemTotal_bytes) > 5
|
||||
description: Etcd memory usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
# Openshift API server CPU and memory usage increase
|
||||
- expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-apiserver', container='openshift-apiserver'}[1m])) * 100 / sum(machine_cpu_cores) > 5
|
||||
description: openshift apiserver cpu usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
- expr: (sum(deriv(container_memory_usage_bytes{namespace='openshift-apiserver', container='openshift-apiserver'}[5m]))) * 100 / sum(node_memory_MemTotal_bytes) > 5
|
||||
description: openshift apiserver memory usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
# Openshift kube API server CPU and memory usage increase
|
||||
- expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-kube-apiserver', container='kube-apiserver'}[1m])) * 100 / sum(machine_cpu_cores) > 5
|
||||
description: openshift apiserver cpu usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
- expr: (sum(deriv(container_memory_usage_bytes{namespace='openshift-kube-apiserver', container='kube-apiserver'}[5m]))) * 100 / sum(node_memory_MemTotal_bytes) > 5
|
||||
description: openshift apiserver memory usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
# Master node CPU usage increase
|
||||
- expr: (sum((sum(deriv(pod:container_cpu_usage:sum{container="",pod!=""}[5m])) BY (namespace, pod) * on(pod, namespace) group_left(node) (node_namespace_pod:kube_pod_info:) ) * on(node) group_left(role) (max by (node) (kube_node_role{role="master"})))) * 100 / sum(machine_cpu_cores) > 5
|
||||
description: master nodes cpu usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
# Master nodes memory usage increase
|
||||
- expr: (sum((sum(deriv(container_memory_usage_bytes{container="",pod!=""}[5m])) BY (namespace, pod) * on(pod, namespace) group_left(node) (node_namespace_pod:kube_pod_info:) ) * on(node) group_left(role) (max by (node) (kube_node_role{role="master"})))) * 100 / sum(node_memory_MemTotal_bytes) > 5
|
||||
description: master nodes memory usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
|
||||
@@ -99,3 +99,41 @@
|
||||
- expr: ALERTS{severity="critical", alertstate="firing"} > 0
|
||||
description: Critical prometheus alert. {{$labels.alertname}}
|
||||
severity: warning
|
||||
|
||||
# etcd CPU and usage increase
|
||||
- expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-etcd', container='etcd'}[1m])) * 100 / sum(machine_cpu_cores) > 5
|
||||
description: Etcd CPU usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
# etcd memory usage increase
|
||||
- expr: sum(deriv(container_memory_usage_bytes{image!='', namespace='openshift-etcd', container='etcd'}[5m])) * 100 / sum(node_memory_MemTotal_bytes) > 5
|
||||
description: Etcd memory usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
# Openshift API server CPU and memory usage increase
|
||||
- expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-apiserver', container='openshift-apiserver'}[1m])) * 100 / sum(machine_cpu_cores) > 5
|
||||
description: openshift apiserver cpu usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
- expr: (sum(deriv(container_memory_usage_bytes{namespace='openshift-apiserver', container='openshift-apiserver'}[5m]))) * 100 / sum(node_memory_MemTotal_bytes) > 5
|
||||
description: openshift apiserver memory usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
# Openshift kube API server CPU and memory usage increase
|
||||
- expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-kube-apiserver', container='kube-apiserver'}[1m])) * 100 / sum(machine_cpu_cores) > 5
|
||||
description: openshift apiserver cpu usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
- expr: (sum(deriv(container_memory_usage_bytes{namespace='openshift-kube-apiserver', container='kube-apiserver'}[5m]))) * 100 / sum(node_memory_MemTotal_bytes) > 5
|
||||
description: openshift apiserver memory usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
# Master node CPU usage increase
|
||||
- expr: (sum((sum(deriv(pod:container_cpu_usage:sum{container="",pod!=""}[5m])) BY (namespace, pod) * on(pod, namespace) group_left(node) (node_namespace_pod:kube_pod_info:) ) * on(node) group_left(role) (max by (node) (kube_node_role{role="master"})))) * 100 / sum(machine_cpu_cores) > 5
|
||||
description: master nodes cpu usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
# Master nodes memory usage increase
|
||||
- expr: (sum((sum(deriv(container_memory_usage_bytes{container="",pod!=""}[5m])) BY (namespace, pod) * on(pod, namespace) group_left(node) (node_namespace_pod:kube_pod_info:) ) * on(node) group_left(role) (max by (node) (kube_node_role{role="master"})))) * 100 / sum(node_memory_MemTotal_bytes) > 5
|
||||
description: master nodes memory usage increased significantly by {{$value}}%
|
||||
severity: critical
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
kraken:
|
||||
distribution: openshift # Distribution can be kubernetes or openshift
|
||||
kubeconfig_path: ~/.kube/config # Path to kubeconfig
|
||||
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
|
||||
@@ -8,40 +8,47 @@ kraken:
|
||||
port: 8081 # Signal port
|
||||
chaos_scenarios:
|
||||
# List of policies/chaos scenarios to load
|
||||
- arcaflow_scenarios:
|
||||
- scenarios/arcaflow/cpu-hog/input.yaml
|
||||
- scenarios/arcaflow/memory-hog/input.yaml
|
||||
- scenarios/arcaflow/io-hog/input.yaml
|
||||
- application_outages:
|
||||
- hog_scenarios:
|
||||
- scenarios/kube/cpu-hog/input.yaml
|
||||
- scenarios/kube/memory-hog/input.yaml
|
||||
- scenarios/kube/io-hog/input.yaml
|
||||
- scenarios/kube/io-hog/input.yaml
|
||||
- application_outages_scenarios:
|
||||
- scenarios/openshift/app_outage.yaml
|
||||
- container_scenarios: # List of chaos pod scenarios to load
|
||||
- - scenarios/openshift/container_etcd.yml
|
||||
- plugin_scenarios:
|
||||
- scenarios/openshift/container_etcd.yml
|
||||
- pod_network_scenarios:
|
||||
- scenarios/openshift/network_chaos_ingress.yml
|
||||
- scenarios/openshift/pod_network_outage.yml
|
||||
- pod_disruption_scenarios:
|
||||
- scenarios/openshift/etcd.yml
|
||||
- scenarios/openshift/regex_openshift_pod_kill.yml
|
||||
- scenarios/openshift/vmware_node_scenarios.yml
|
||||
- scenarios/openshift/network_chaos_ingress.yml
|
||||
- scenarios/openshift/prom_kill.yml
|
||||
- node_scenarios: # List of chaos node scenarios to load
|
||||
- scenarios/openshift/node_scenarios_example.yml
|
||||
- plugin_scenarios:
|
||||
- scenarios/openshift/openshift-apiserver.yml
|
||||
- scenarios/openshift/openshift-kube-apiserver.yml
|
||||
- vmware_node_scenarios:
|
||||
- scenarios/openshift/vmware_node_scenarios.yml
|
||||
- ibmcloud_node_scenarios:
|
||||
- scenarios/openshift/ibmcloud_node_scenarios.yml
|
||||
- node_scenarios: # List of chaos node scenarios to load
|
||||
- scenarios/openshift/aws_node_scenarios.yml
|
||||
- time_scenarios: # List of chaos time scenarios to load
|
||||
- scenarios/openshift/time_scenarios_example.yml
|
||||
- cluster_shut_down_scenarios:
|
||||
- - scenarios/openshift/cluster_shut_down_scenario.yml
|
||||
- scenarios/openshift/post_action_shut_down.py
|
||||
- scenarios/openshift/cluster_shut_down_scenario.yml
|
||||
- service_disruption_scenarios:
|
||||
- - scenarios/openshift/regex_namespace.yaml
|
||||
- - scenarios/openshift/ingress_namespace.yaml
|
||||
- scenarios/openshift/post_action_namespace.py
|
||||
- zone_outages:
|
||||
- scenarios/openshift/regex_namespace.yaml
|
||||
- scenarios/openshift/ingress_namespace.yaml
|
||||
- zone_outages_scenarios:
|
||||
- scenarios/openshift/zone_outage.yaml
|
||||
- pvc_scenarios:
|
||||
- scenarios/openshift/pvc_scenario.yaml
|
||||
- network_chaos:
|
||||
- network_chaos_scenarios:
|
||||
- scenarios/openshift/network_chaos.yaml
|
||||
- service_hijacking_scenarios:
|
||||
- scenarios/kube/service_hijacking.yaml
|
||||
- syn_flood_scenarios:
|
||||
- scenarios/kube/syn_flood.yaml
|
||||
|
||||
cerberus:
|
||||
cerberus_enabled: False # Enable it when cerberus is previously installed
|
||||
@@ -51,12 +58,27 @@ cerberus:
|
||||
performance_monitoring:
|
||||
deploy_dashboards: False # Install a mutable grafana and load the performance dashboards. Enable this only when running on OpenShift
|
||||
repo: "https://github.com/cloud-bulldozer/performance-dashboards.git"
|
||||
prometheus_url: # The prometheus url/route is automatically obtained in case of OpenShift, please set it when the distribution is Kubernetes.
|
||||
prometheus_url: '' # The prometheus url/route is automatically obtained in case of OpenShift, please set it when the distribution is Kubernetes.
|
||||
prometheus_bearer_token: # The bearer token is automatically obtained in case of OpenShift, please set it when the distribution is Kubernetes. This is needed to authenticate with prometheus.
|
||||
uuid: # uuid for the run is generated by default if not set
|
||||
enable_alerts: False # Runs the queries specified in the alert profile and displays the info or exits 1 when severity=error
|
||||
enable_metrics: False
|
||||
alert_profile: config/alerts.yaml # Path or URL to alert profile with the prometheus queries
|
||||
metrics_profile: config/metrics.yaml
|
||||
check_critical_alerts: False # When enabled will check prometheus for critical alerts firing post chaos
|
||||
elastic:
|
||||
enable_elastic: False
|
||||
collect_metrics: False
|
||||
collect_alerts: False
|
||||
verify_certs: False
|
||||
elastic_url: "" # To track results in elasticsearch, give url to server here; will post telemetry details when url and index not blank
|
||||
elastic_port: 32766
|
||||
username: "elastic"
|
||||
password: "test"
|
||||
metrics_index: "krkn-metrics"
|
||||
alerts_index: "krkn-alerts"
|
||||
telemetry_index: "krkn-telemetry"
|
||||
|
||||
tunings:
|
||||
wait_duration: 60 # Duration to wait between each chaos scenario
|
||||
iterations: 1 # Number of times to execute the scenarios
|
||||
@@ -65,14 +87,19 @@ telemetry:
|
||||
enabled: False # enable/disables the telemetry collection feature
|
||||
api_url: https://ulnmf9xv7j.execute-api.us-west-2.amazonaws.com/production #telemetry service endpoint
|
||||
username: username # telemetry service username
|
||||
password: password # telemetry service password
|
||||
password: password # telemetry service password
|
||||
prometheus_backup: True # enables/disables prometheus data collection
|
||||
prometheus_namespace: "" # namespace where prometheus is deployed (if distribution is kubernetes)
|
||||
prometheus_container_name: "" # name of the prometheus container name (if distribution is kubernetes)
|
||||
prometheus_pod_name: "" # name of the prometheus pod (if distribution is kubernetes)
|
||||
full_prometheus_backup: False # if is set to False only the /prometheus/wal folder will be downloaded.
|
||||
backup_threads: 5 # number of telemetry download/upload threads
|
||||
archive_path: /tmp # local path where the archive files will be temporarly stored
|
||||
max_retries: 0 # maximum number of upload retries (if 0 will retry forever)
|
||||
run_tag: '' # if set, this will be appended to the run folder in the bucket (useful to group the runs)
|
||||
archive_size: 500000 # the size of the prometheus data archive size in KB. The lower the size of archive is
|
||||
archive_size: 500000
|
||||
telemetry_group: '' # if set will archive the telemetry in the S3 bucket on a folder named after the value, otherwise will use "default"
|
||||
# the size of the prometheus data archive size in KB. The lower the size of archive is
|
||||
# the higher the number of archive files will be produced and uploaded (and processed by backup_threads
|
||||
# simultaneously).
|
||||
# For unstable/slow connection is better to keep this value low
|
||||
@@ -89,3 +116,4 @@ telemetry:
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
@@ -6,7 +6,7 @@ kraken:
|
||||
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
|
||||
chaos_scenarios: # List of policies/chaos scenarios to load
|
||||
chaos_scenarios: # List of policies/chaos scenarios to load
|
||||
- plugin_scenarios:
|
||||
- scenarios/kind/scheduler.yml
|
||||
- node_scenarios:
|
||||
|
||||
@@ -7,7 +7,7 @@ kraken:
|
||||
signal_state: RUN # Will wait for the RUN signal when set to PAUSE before running the scenarios, refer docs/signal.md for more details
|
||||
chaos_scenarios: # List of policies/chaos scenarios to load
|
||||
- container_scenarios: # List of chaos pod scenarios to load
|
||||
- - scenarios/kube/container_dns.yml
|
||||
- scenarios/kube/container_dns.yml
|
||||
- plugin_scenarios:
|
||||
- scenarios/kube/scheduler.yml
|
||||
|
||||
|
||||
@@ -12,15 +12,14 @@ kraken:
|
||||
- scenarios/openshift/regex_openshift_pod_kill.yml
|
||||
- scenarios/openshift/prom_kill.yml
|
||||
- node_scenarios: # List of chaos node scenarios to load
|
||||
- scenarios/openshift/node_scenarios_example.yml
|
||||
- scenarios/openshift/node_scenarios_example.yml
|
||||
- plugin_scenarios:
|
||||
- scenarios/openshift/openshift-apiserver.yml
|
||||
- scenarios/openshift/openshift-kube-apiserver.yml
|
||||
- time_scenarios: # List of chaos time scenarios to load
|
||||
- scenarios/openshift/time_scenarios_example.yml
|
||||
- cluster_shut_down_scenarios:
|
||||
- - scenarios/openshift/cluster_shut_down_scenario.yml
|
||||
- scenarios/openshift/post_action_shut_down.py
|
||||
- scenarios/openshift/cluster_shut_down_scenario.yml
|
||||
- service_disruption_scenarios:
|
||||
- scenarios/openshift/regex_namespace.yaml
|
||||
- scenarios/openshift/ingress_namespace.yaml
|
||||
@@ -77,3 +76,8 @@ telemetry:
|
||||
- "kinit (\\d+/\\d+/\\d+\\s\\d{2}:\\d{2}:\\d{2})\\s+" # kinit 2023/09/15 11:20:36 log
|
||||
- "(\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}\\.\\d+Z).+" # 2023-09-15T11:20:36.123425532Z log
|
||||
oc_cli_path: /usr/bin/oc # optional, if not specified will be search in $PATH
|
||||
elastic:
|
||||
elastic_url: "" # To track results in elasticsearch, give url to server here; will post telemetry details when url and index not blank
|
||||
elastic_index: "" # Elastic search index pattern to post results to
|
||||
|
||||
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
application: openshift-etcd
|
||||
namespace: openshift-etcd
|
||||
namespaces: openshift-etcd
|
||||
labels: app=openshift-etcd
|
||||
kubeconfig: ~/.kube/config.yaml
|
||||
prometheus_endpoint: <Prometheus_Endpoint>
|
||||
@@ -7,6 +7,8 @@ auth_token: <Auth_Token>
|
||||
scrape_duration: 10m
|
||||
chaos_library: "kraken"
|
||||
log_level: INFO
|
||||
json_output_file: False
|
||||
json_output_folder_path:
|
||||
|
||||
# for output purpose only do not change if not needed
|
||||
chaos_tests:
|
||||
@@ -26,4 +28,8 @@ chaos_tests:
|
||||
- pod_network_chaos
|
||||
MEM:
|
||||
- node_memory_hog
|
||||
- pvc_disk_fill
|
||||
- pvc_disk_fill
|
||||
|
||||
threshold: .7
|
||||
cpu_threshold: .5
|
||||
mem_threshold: .5
|
||||
|
||||
@@ -1,28 +1,55 @@
|
||||
# Dockerfile for kraken
|
||||
|
||||
FROM mcr.microsoft.com/azure-cli:latest as azure-cli
|
||||
|
||||
FROM registry.access.redhat.com/ubi8/ubi:latest
|
||||
|
||||
ENV KUBECONFIG /root/.kube/config
|
||||
|
||||
# Copy azure client binary from azure-cli image
|
||||
COPY --from=azure-cli /usr/local/bin/az /usr/bin/az
|
||||
|
||||
# Install dependencies
|
||||
RUN yum install -y git python39 python3-pip jq gettext wget && \
|
||||
python3.9 -m pip install -U pip && \
|
||||
git clone https://github.com/krkn-chaos/krkn.git --branch v1.5.5 /root/kraken && \
|
||||
mkdir -p /root/.kube && cd /root/kraken && \
|
||||
pip3.9 install -r requirements.txt && \
|
||||
pip3.9 install virtualenv && \
|
||||
wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O /usr/bin/yq && chmod +x /usr/bin/yq
|
||||
|
||||
# Get Kubernetes and OpenShift clients from stable releases
|
||||
# oc build
|
||||
FROM golang:1.22.5 AS oc-build
|
||||
RUN apt-get update && apt-get install -y --no-install-recommends libkrb5-dev
|
||||
WORKDIR /tmp
|
||||
RUN wget https://mirror.openshift.com/pub/openshift-v4/clients/ocp/stable/openshift-client-linux.tar.gz && tar -xvf openshift-client-linux.tar.gz && cp oc /usr/local/bin/oc && cp kubectl /usr/local/bin/kubectl
|
||||
RUN git clone --branch release-4.18 https://github.com/openshift/oc.git
|
||||
WORKDIR /tmp/oc
|
||||
RUN go mod edit -go 1.22.5 &&\
|
||||
go get github.com/moby/buildkit@v0.12.5 &&\
|
||||
go get github.com/containerd/containerd@v1.7.11&&\
|
||||
go get github.com/docker/docker@v25.0.6&&\
|
||||
go get github.com/opencontainers/runc@v1.1.14&&\
|
||||
go mod tidy && go mod vendor
|
||||
RUN make GO_REQUIRED_MIN_VERSION:= oc
|
||||
|
||||
WORKDIR /root/kraken
|
||||
FROM fedora:40
|
||||
ARG PR_NUMBER
|
||||
ARG TAG
|
||||
RUN groupadd -g 1001 krkn && useradd -m -u 1001 -g krkn krkn
|
||||
RUN dnf update -y
|
||||
|
||||
ENV KUBECONFIG /home/krkn/.kube/config
|
||||
|
||||
# install kubectl
|
||||
RUN curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl" &&\
|
||||
cp kubectl /usr/local/bin/kubectl && chmod +x /usr/local/bin/kubectl &&\
|
||||
cp kubectl /usr/bin/kubectl && chmod +x /usr/bin/kubectl
|
||||
|
||||
# This overwrites any existing configuration in /etc/yum.repos.d/kubernetes.repo
|
||||
RUN dnf update && dnf install -y --setopt=install_weak_deps=False \
|
||||
git python39 jq yq gettext wget which &&\
|
||||
dnf clean all
|
||||
|
||||
# copy oc client binary from oc-build image
|
||||
COPY --from=oc-build /tmp/oc/oc /usr/bin/oc
|
||||
|
||||
# krkn build
|
||||
RUN git clone https://github.com/krkn-chaos/krkn.git /home/krkn/kraken && \
|
||||
mkdir -p /home/krkn/.kube
|
||||
|
||||
WORKDIR /home/krkn/kraken
|
||||
|
||||
# default behaviour will be to build main
|
||||
# if it is a PR trigger the PR itself will be checked out
|
||||
RUN if [ -n "$PR_NUMBER" ]; then git fetch origin pull/${PR_NUMBER}/head:pr-${PR_NUMBER} && git checkout pr-${PR_NUMBER};fi
|
||||
# if it is a TAG trigger checkout the tag
|
||||
RUN if [ -n "$TAG" ]; then git checkout "$TAG";fi
|
||||
|
||||
RUN python3.9 -m ensurepip
|
||||
RUN pip3.9 install -r requirements.txt
|
||||
RUN pip3.9 install jsonschema
|
||||
|
||||
RUN chown -R krkn:krkn /home/krkn && chmod 755 /home/krkn
|
||||
USER krkn
|
||||
ENTRYPOINT ["python3.9", "run_kraken.py"]
|
||||
CMD ["--config=config/config.yaml"]
|
||||
|
||||
@@ -1,29 +0,0 @@
|
||||
# Dockerfile for kraken
|
||||
|
||||
FROM ppc64le/centos:8
|
||||
|
||||
FROM mcr.microsoft.com/azure-cli:latest as azure-cli
|
||||
|
||||
LABEL org.opencontainers.image.authors="Red Hat OpenShift Chaos Engineering"
|
||||
|
||||
ENV KUBECONFIG /root/.kube/config
|
||||
|
||||
# Copy azure client binary from azure-cli image
|
||||
COPY --from=azure-cli /usr/local/bin/az /usr/bin/az
|
||||
|
||||
# Install dependencies
|
||||
RUN yum install -y git python39 python3-pip jq gettext wget && \
|
||||
python3.9 -m pip install -U pip && \
|
||||
git clone https://github.com/redhat-chaos/krkn.git --branch v1.5.5 /root/kraken && \
|
||||
mkdir -p /root/.kube && cd /root/kraken && \
|
||||
pip3.9 install -r requirements.txt && \
|
||||
pip3.9 install virtualenv && \
|
||||
wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O /usr/bin/yq && chmod +x /usr/bin/yq
|
||||
|
||||
# Get Kubernetes and OpenShift clients from stable releases
|
||||
WORKDIR /tmp
|
||||
RUN wget https://mirror.openshift.com/pub/openshift-v4/clients/ocp/stable/openshift-client-linux.tar.gz && tar -xvf openshift-client-linux.tar.gz && cp oc /usr/local/bin/oc && cp kubectl /usr/local/bin/kubectl
|
||||
|
||||
WORKDIR /root/kraken
|
||||
|
||||
ENTRYPOINT python3.9 run_kraken.py --config=config/config.yaml
|
||||
@@ -12,35 +12,3 @@ Refer [instructions](https://github.com/redhat-chaos/krkn/blob/main/docs/install
|
||||
### Run Custom Kraken Image
|
||||
|
||||
Refer to [instructions](https://github.com/redhat-chaos/krkn/blob/main/containers/build_own_image-README.md) for information on how to run a custom containerized version of kraken using podman.
|
||||
|
||||
|
||||
### Kraken as a KubeApp ( Unsupported and not recommended )
|
||||
|
||||
#### GENERAL NOTES:
|
||||
|
||||
- It is not generally recommended to run Kraken internal to the cluster as the pod which is running Kraken might get disrupted, the suggested use case to run kraken from inside k8s/OpenShift is to target **another** cluster (eg. to bypass network restrictions or to leverage cluster's computational resources)
|
||||
|
||||
- your kubeconfig might contain several cluster contexts and credentials so be sure, before creating the ConfigMap, to keep **only** the credentials related to the destination cluster. Please refer to the [Kubernetes documentation](https://kubernetes.io/docs/tasks/access-application-cluster/configure-access-multiple-clusters/) for more details
|
||||
- to add privileges to the service account you must be logged in the cluster with an highly privileged account (ideally kubeadmin)
|
||||
|
||||
|
||||
|
||||
To run containerized Kraken as a Kubernetes/OpenShift Deployment, follow these steps:
|
||||
|
||||
1. Configure the [config.yaml](https://github.com/redhat-chaos/krkn/blob/main/config/config.yaml) file according to your requirements.
|
||||
|
||||
**NOTE**: both the scenarios ConfigMaps are needed regardless you're running kraken in Kubernetes or OpenShift
|
||||
|
||||
2. Create a namespace under which you want to run the kraken pod using `kubectl create ns <namespace>`.
|
||||
3. Switch to `<namespace>` namespace:
|
||||
- In Kubernetes, use `kubectl config set-context --current --namespace=<namespace>`
|
||||
- In OpenShift, use `oc project <namespace>`
|
||||
|
||||
4. Create a ConfigMap named kube-config using `kubectl create configmap kube-config --from-file=<path_to_kubeconfig>` *(eg. ~/.kube/config)*
|
||||
5. Create a ConfigMap named kraken-config using `kubectl create configmap kraken-config --from-file=<path_to_kraken>/config`
|
||||
6. Create a ConfigMap named scenarios-config using `kubectl create configmap scenarios-config --from-file=<path_to_kraken>/scenarios`
|
||||
7. Create a ConfigMap named scenarios-openshift-config using `kubectl create configmap scenarios-openshift-config --from-file=<path_to_kraken>/scenarios/openshift`
|
||||
8. Create a ConfigMap named scenarios-kube-config using `kubectl create configmap scenarios-kube-config --from-file=<path_to_kraken>/scenarios/kube`
|
||||
9. Create a service account to run the kraken pod `kubectl create serviceaccount useroot`.
|
||||
10. In Openshift, add privileges to service account and execute `oc adm policy add-scc-to-user privileged -z useroot`.
|
||||
11. Create a Job using `kubectl apply -f <path_to_kraken>/containers/kraken.yml` and monitor the status using `oc get jobs` and `oc get pods`.
|
||||
|
||||
@@ -1,49 +0,0 @@
|
||||
---
|
||||
apiVersion: batch/v1
|
||||
kind: Job
|
||||
metadata:
|
||||
name: kraken
|
||||
spec:
|
||||
parallelism: 1
|
||||
completions: 1
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
tool: Kraken
|
||||
spec:
|
||||
serviceAccountName: useroot
|
||||
containers:
|
||||
- name: kraken
|
||||
securityContext:
|
||||
privileged: true
|
||||
image: quay.io/redhat-chaos/krkn
|
||||
command: ["/bin/sh", "-c"]
|
||||
args: ["python3.9 run_kraken.py -c config/config.yaml"]
|
||||
volumeMounts:
|
||||
- mountPath: "/root/.kube"
|
||||
name: config
|
||||
- mountPath: "/root/kraken/config"
|
||||
name: kraken-config
|
||||
- mountPath: "/root/kraken/scenarios"
|
||||
name: scenarios-config
|
||||
- mountPath: "/root/kraken/scenarios/openshift"
|
||||
name: scenarios-openshift-config
|
||||
- mountPath: "/root/kraken/scenarios/kube"
|
||||
name: scenarios-kube-config
|
||||
restartPolicy: Never
|
||||
volumes:
|
||||
- name: config
|
||||
configMap:
|
||||
name: kube-config
|
||||
- name: kraken-config
|
||||
configMap:
|
||||
name: kraken-config
|
||||
- name: scenarios-config
|
||||
configMap:
|
||||
name: scenarios-config
|
||||
- name: scenarios-openshift-config
|
||||
configMap:
|
||||
name: scenarios-openshift-config
|
||||
- name: scenarios-kube-config
|
||||
configMap:
|
||||
name: scenarios-kube-config
|
||||
@@ -1,31 +0,0 @@
|
||||
version: "3"
|
||||
services:
|
||||
elastic:
|
||||
image: docker.elastic.co/elasticsearch/elasticsearch:7.13.2
|
||||
deploy:
|
||||
replicas: 1
|
||||
restart_policy:
|
||||
condition: on-failure
|
||||
network_mode: host
|
||||
environment:
|
||||
discovery.type: single-node
|
||||
kibana:
|
||||
image: docker.elastic.co/kibana/kibana:7.13.2
|
||||
deploy:
|
||||
replicas: 1
|
||||
restart_policy:
|
||||
condition: on-failure
|
||||
network_mode: host
|
||||
environment:
|
||||
ELASTICSEARCH_HOSTS: "http://0.0.0.0:9200"
|
||||
cerberus:
|
||||
image: quay.io/openshift-scale/cerberus:latest
|
||||
privileged: true
|
||||
deploy:
|
||||
replicas: 1
|
||||
restart_policy:
|
||||
condition: on-failure
|
||||
network_mode: host
|
||||
volumes:
|
||||
- ./config/cerberus.yaml:/root/cerberus/config/config.yaml:Z # Modify the config in case of the need to monitor additional components
|
||||
- ${HOME}/.kube/config:/root/.kube/config:Z
|
||||
@@ -38,11 +38,11 @@ A couple of [alert profiles](https://github.com/redhat-chaos/krkn/tree/main/conf
|
||||
severity: critical
|
||||
```
|
||||
|
||||
Kube-burner supports setting the severity for the alerts with each one having different effects:
|
||||
Krkn supports setting the severity for the alerts with each one having different effects:
|
||||
|
||||
```
|
||||
info: Prints an info message with the alarm description to stdout. By default all expressions have this severity.
|
||||
warning: Prints a warning message with the alarm description to stdout.
|
||||
error: Prints a error message with the alarm description to stdout and makes kube-burner rc = 1
|
||||
error: Prints a error message with the alarm description to stdout and sets Krkn rc = 1
|
||||
critical: Prints a fatal message with the alarm description to stdout and exits execution inmediatly with rc != 0
|
||||
```
|
||||
|
||||
@@ -13,13 +13,26 @@ Supported Cloud Providers:
|
||||
**NOTE**: For clusters with AWS make sure [AWS CLI](https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html) is installed and properly [configured](https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-quickstart.html) using an AWS account
|
||||
|
||||
## GCP
|
||||
**NOTE**: For clusters with GCP make sure [GCP CLI](https://cloud.google.com/sdk/docs/install#linux) is installed.
|
||||
|
||||
A google service account is required to give proper authentication to GCP for node actions. See [here](https://cloud.google.com/docs/authentication/getting-started) for how to create a service account.
|
||||
In order to set up Application Default Credentials (ADC) for use by Cloud Client Libraries, you can provide either service account credentials or the credentials associated with your user acccount:
|
||||
|
||||
**NOTE**: A user with 'resourcemanager.projects.setIamPolicy' permission is required to grant project-level permissions to the service account.
|
||||
- Using service account credentials:
|
||||
|
||||
After creating the service account you will need to enable the account using the following: ```export GOOGLE_APPLICATION_CREDENTIALS="<serviceaccount.json>"```
|
||||
A google service account is required to give proper authentication to GCP for node actions. See [here](https://cloud.google.com/docs/authentication/getting-started) for how to create a service account.
|
||||
|
||||
**NOTE**: A user with 'resourcemanager.projects.setIamPolicy' permission is required to grant project-level permissions to the service account.
|
||||
|
||||
After creating the service account you will need to enable the account using the following: ```export GOOGLE_APPLICATION_CREDENTIALS="<serviceaccount.json>"```
|
||||
|
||||
- Using the credentials associated with your user acccount:
|
||||
|
||||
1. Make sure that the [GCP CLI](https://cloud.google.com/sdk/docs/install#linux) is installed and [initialized](https://cloud.google.com/sdk/docs/initializing) by running:
|
||||
|
||||
```gcloud init```
|
||||
|
||||
2. Create local authentication credentials for your user account:
|
||||
|
||||
```gcloud auth application-default login```
|
||||
|
||||
## Openstack
|
||||
|
||||
@@ -27,14 +40,13 @@ After creating the service account you will need to enable the account using the
|
||||
|
||||
## Azure
|
||||
|
||||
**NOTE**: For Azure node killing scenarios, make sure [Azure CLI](https://docs.microsoft.com/en-us/cli/azure/install-azure-cli?view=azure-cli-latest) is installed.
|
||||
|
||||
You will also need to create a service principal and give it the correct access, see [here](https://docs.openshift.com/container-platform/4.5/installing/installing_azure/installing-azure-account.html) for creating the service principal and setting the proper permissions.
|
||||
**NOTE**: You will need to create a service principal and give it the correct access, see [here](https://docs.openshift.com/container-platform/4.5/installing/installing_azure/installing-azure-account.html) for creating the service principal and setting the proper permissions.
|
||||
|
||||
To properly run the service principal requires “Azure Active Directory Graph/Application.ReadWrite.OwnedBy” api permission granted and “User Access Administrator”.
|
||||
|
||||
Before running you will need to set the following:
|
||||
1. Login using ```az login```
|
||||
|
||||
1. ```export AZURE_SUBSCRIPTION_ID=<subscription_id>```
|
||||
|
||||
2. ```export AZURE_TENANT_ID=<tenant_id>```
|
||||
|
||||
@@ -68,9 +80,10 @@ Set the following environment variables
|
||||
|
||||
These are the credentials that you would normally use to access the vSphere client.
|
||||
|
||||
|
||||
## IBMCloud
|
||||
If no api key is set up with proper VPC resource permissions, use the following to create:
|
||||
|
||||
If no API key is set up with proper VPC resource permissions, use the following to create it:
|
||||
|
||||
* Access group
|
||||
* Service id with the following access
|
||||
* With policy **VPC Infrastructure Services**
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
#### Kubernetes/OpenShift cluster shut down scenario
|
||||
Scenario to shut down all the nodes including the masters and restart them after specified duration. Cluster shut down scenario can be injected by placing the shut_down config file under cluster_shut_down_scenario option in the kraken config. Refer to [cluster_shut_down_scenario](https://github.com/redhat-chaos/krkn/blob/main/scenarios/cluster_shut_down_scenario.yml) config file.
|
||||
#### Kubernetes cluster shut down scenario
|
||||
Scenario to shut down all the nodes including the masters and restart them after specified duration. Cluster shut down scenario can be injected by placing the shut_down config file under cluster_shut_down_scenario option in the kraken config. Refer to [cluster_shut_down_scenario](https://github.com/krkn-chaos/krkn/blob/main/scenarios/cluster_shut_down_scenario.yml) config file.
|
||||
|
||||
Refer to [cloud setup](cloud_setup.md) to configure your cli properly for the cloud provider of the cluster you want to shut down.
|
||||
|
||||
@@ -8,6 +8,7 @@ Current accepted cloud types:
|
||||
* [GCP](cloud_setup.md#gcp)
|
||||
* [AWS](cloud_setup.md#aws)
|
||||
* [Openstack](cloud_setup.md#openstack)
|
||||
* [IBMCloud](cloud_setup.md#ibmcloud)
|
||||
|
||||
|
||||
```
|
||||
|
||||
@@ -4,7 +4,7 @@ This can be based on the pods namespace or labels. If you know the exact object
|
||||
These scenarios are in a simple yaml format that you can manipulate to run your specific tests or use the pre-existing scenarios to see how it works.
|
||||
|
||||
#### Example Config
|
||||
The following are the components of Kubernetes/OpenShift for which a basic chaos scenario config exists today.
|
||||
The following are the components of Kubernetes for which a basic chaos scenario config exists today.
|
||||
|
||||
```
|
||||
scenarios:
|
||||
@@ -25,7 +25,7 @@ In all scenarios we do a post chaos check to wait and verify the specific compon
|
||||
Here there are two options:
|
||||
1. Pass a custom script in the main config scenario list that will run before the chaos and verify the output matches post chaos scenario.
|
||||
|
||||
See [scenarios/post_action_etcd_container.py](https://github.com/redhat-chaos/krkn/blob/main/scenarios/post_action_etcd_container.py) for an example.
|
||||
See [scenarios/post_action_etcd_container.py](https://github.com/krkn-chaos/krkn/blob/main/scenarios/post_action_etcd_container.py) for an example.
|
||||
```
|
||||
- container_scenarios: # List of chaos pod scenarios to load.
|
||||
- - scenarios/container_etcd.yml
|
||||
|
||||
@@ -62,7 +62,7 @@ If changes go into the main repository while you're working on your code it is b
|
||||
|
||||
If not already configured, set the upstream url for kraken.
|
||||
```
|
||||
git remote add upstream https://github.com/redhat-chaos/krkn.git
|
||||
git remote add upstream https://github.com/krkn-chaos/krkn.git
|
||||
```
|
||||
|
||||
Rebase to upstream master branch.
|
||||
|
||||
@@ -14,11 +14,7 @@ For example, for adding a pod level scenario for a new application, refer to the
|
||||
namespace_pattern: ^<namespace>$
|
||||
label_selector: <pod label>
|
||||
kill: <number of pods to kill>
|
||||
- id: wait-for-pods
|
||||
config:
|
||||
namespace_pattern: ^<namespace>$
|
||||
label_selector: <pod label>
|
||||
count: <expected number of pods that match namespace and label>
|
||||
krkn_pod_recovery_time: <expected time for the pod to become ready>
|
||||
```
|
||||
|
||||
#### Node Scenario Yaml Template
|
||||
|
||||
@@ -11,7 +11,7 @@
|
||||
* [Scenarios](#scenarios)
|
||||
* [Test Environment Recommendations - how and where to run chaos tests](#test-environment-recommendations---how-and-where-to-run-chaos-tests)
|
||||
* [Chaos testing in Practice](#chaos-testing-in-practice)
|
||||
* [OpenShift oraganization](#openshift-organization)
|
||||
* [OpenShift organization](#openshift-organization)
|
||||
* [startx-lab](#startx-lab)
|
||||
|
||||
|
||||
|
||||
@@ -3,13 +3,13 @@
|
||||
The following ways are supported to run Kraken:
|
||||
|
||||
- Standalone python program through Git.
|
||||
- Containerized version using either Podman or Docker as the runtime via [Krkn-hub](https://github.com/redhat-chaos/krkn-hub)
|
||||
- Containerized version using either Podman or Docker as the runtime via [Krkn-hub](https://github.com/krkn-chaos/krkn-hub)
|
||||
- Kubernetes or OpenShift deployment ( unsupported )
|
||||
|
||||
**NOTE**: It is recommended to run Kraken external to the cluster ( Standalone or Containerized ) hitting the Kubernetes/OpenShift API as running it internal to the cluster might be disruptive to itself and also might not report back the results if the chaos leads to cluster's API server instability.
|
||||
|
||||
**NOTE**: To run Kraken on Power (ppc64le) architecture, build and run a containerized version by following the
|
||||
instructions given [here](https://github.com/redhat-chaos/krkn/blob/main/containers/build_own_image-README.md).
|
||||
instructions given [here](https://github.com/krkn-chaos/krkn/blob/main/containers/build_own_image-README.md).
|
||||
|
||||
**NOTE**: Helper functions for interactions in Krkn are part of [krkn-lib](https://github.com/redhat-chaos/krkn-lib).
|
||||
Please feel free to reuse and expand them as you see fit when adding a new scenario or expanding
|
||||
@@ -19,10 +19,10 @@ the capabilities of the current supported scenarios.
|
||||
### Git
|
||||
|
||||
#### Clone the repository
|
||||
Pick the latest stable release to install [here](https://github.com/redhat-chaos/krkn/releases).
|
||||
Pick the latest stable release to install [here](https://github.com/krkn-chaos/krkn/releases).
|
||||
```
|
||||
$ git clone https://github.com/redhat-chaos/krkn.git --branch <release version>
|
||||
$ cd kraken
|
||||
$ git clone https://github.com/krkn-chaos/krkn.git --branch <release version>
|
||||
$ cd krkn
|
||||
```
|
||||
|
||||
#### Install the dependencies
|
||||
@@ -40,15 +40,6 @@ $ python3.9 run_kraken.py --config <config_file_location>
|
||||
```
|
||||
|
||||
### Run containerized version
|
||||
[Krkn-hub](https://github.com/redhat-chaos/krkn-hub) is a wrapper that allows running Krkn chaos scenarios via podman or docker runtime with scenario parameters/configuration defined as environment variables.
|
||||
[Krkn-hub](https://github.com/krkn-chaos/krkn-hub) is a wrapper that allows running Krkn chaos scenarios via podman or docker runtime with scenario parameters/configuration defined as environment variables.
|
||||
|
||||
Refer [instructions](https://github.com/redhat-chaos/krkn-hub#supported-chaos-scenarios) to get started.
|
||||
|
||||
|
||||
### Run Kraken as a Kubernetes deployment ( unsupported option - standalone or containerized deployers are recommended )
|
||||
Refer [Instructions](https://github.com/redhat-chaos/krkn/blob/main/containers/README.md) on how to deploy and run Kraken as a Kubernetes/OpenShift deployment.
|
||||
|
||||
|
||||
Refer to the [chaos-kraken chart manpage](https://artifacthub.io/packages/helm/startx/chaos-kraken)
|
||||
and especially the [kraken configuration values](https://artifacthub.io/packages/helm/startx/chaos-kraken#chaos-kraken-values-dictionary)
|
||||
for details on how to configure this chart.
|
||||
Refer [instructions](https://github.com/krkn-chaos/krkn-hub#supported-chaos-scenarios) to get started.
|
||||
|
||||
@@ -18,7 +18,7 @@ network_chaos: # Scenario to create an outage
|
||||
```
|
||||
|
||||
##### Sample scenario config for ingress traffic shaping (using a plugin)
|
||||
'''
|
||||
```
|
||||
- id: network_chaos
|
||||
config:
|
||||
node_interface_name: # Dictionary with key as node name(s) and value as a list of its interfaces to test
|
||||
@@ -35,7 +35,7 @@ network_chaos: # Scenario to create an outage
|
||||
bandwidth: 10mbit
|
||||
wait_duration: 120
|
||||
test_duration: 60
|
||||
'''
|
||||
```
|
||||
|
||||
Note: For ingress traffic shaping, ensure that your node doesn't have any [IFB](https://wiki.linuxfoundation.org/networking/ifb) interfaces already present. The scenario relies on creating IFBs to do the shaping, and they are deleted at the end of the scenario.
|
||||
|
||||
|
||||
@@ -4,29 +4,36 @@ The following node chaos scenarios are supported:
|
||||
|
||||
1. **node_start_scenario**: Scenario to stop the node instance.
|
||||
2. **node_stop_scenario**: Scenario to stop the node instance.
|
||||
3. **node_stop_start_scenario**: Scenario to stop and then start the node instance. Not supported on VMware.
|
||||
3. **node_stop_start_scenario**: Scenario to stop the node instance for specified duration and then start the node instance. Not supported on VMware.
|
||||
4. **node_termination_scenario**: Scenario to terminate the node instance.
|
||||
5. **node_reboot_scenario**: Scenario to reboot the node instance.
|
||||
6. **stop_kubelet_scenario**: Scenario to stop the kubelet of the node instance.
|
||||
7. **stop_start_kubelet_scenario**: Scenario to stop and start the kubelet of the node instance.
|
||||
8. **node_crash_scenario**: Scenario to crash the node instance.
|
||||
9. **stop_start_helper_node_scenario**: Scenario to stop and start the helper node and check service status.
|
||||
8. **restart_kubelet_scenario**: Scenario to restart the kubelet of the node instance.
|
||||
9. **node_crash_scenario**: Scenario to crash the node instance.
|
||||
10. **stop_start_helper_node_scenario**: Scenario to stop and start the helper node and check service status.
|
||||
11. **node_disk_detach_attach_scenario**: Scenario to detach node disk for specified duration.
|
||||
|
||||
|
||||
**NOTE**: If the node does not recover from the node_crash_scenario injection, reboot the node to get it back to Ready state.
|
||||
|
||||
**NOTE**: node_start_scenario, node_stop_scenario, node_stop_start_scenario, node_termination_scenario
|
||||
, node_reboot_scenario and stop_start_kubelet_scenario are supported only on AWS, Azure, OpenStack, BareMetal, GCP
|
||||
, VMware and Alibaba as of now.
|
||||
, node_reboot_scenario and stop_start_kubelet_scenario are supported on AWS, Azure, OpenStack, BareMetal, GCP
|
||||
, VMware and Alibaba.
|
||||
|
||||
**NOTE**: Node scenarios are supported only when running the standalone version of Kraken until https://github.com/redhat-chaos/krkn/issues/106 gets fixed.
|
||||
**NOTE**: node_disk_detach_attach_scenario is supported only on AWS and cannot detach root disk.
|
||||
|
||||
|
||||
#### AWS
|
||||
|
||||
How to set up AWS cli to run node scenarios is defined [here](cloud_setup.md#aws).
|
||||
Cloud setup instructions can be found [here](cloud_setup.md#aws). Sample scenario config can be found [here](https://github.com/krkn-chaos/krkn/blob/main/scenarios/openshift/aws_node_scenarios.yml).
|
||||
|
||||
|
||||
|
||||
#### Baremetal
|
||||
|
||||
Sample scenario config can be found [here](https://github.com/krkn-chaos/krkn/blob/main/scenarios/openshift/baremetal_node_scenarios.yml).
|
||||
|
||||
**NOTE**: Baremetal requires setting the IPMI user and password to power on, off, and reboot nodes, using the config options `bm_user` and `bm_password`. It can either be set in the root of the entry in the scenarios config, or it can be set per machine.
|
||||
|
||||
If no per-machine addresses are specified, kraken attempts to use the BMC value in the BareMetalHost object. To list them, you can do 'oc get bmh -o wide --all-namespaces'. If the BMC values are blank, you must specify them per-machine using the config option 'bmc_addr' as specified below.
|
||||
@@ -38,6 +45,8 @@ See the example node scenario or the example below.
|
||||
|
||||
**NOTE**: Baremetal machines are fragile. Some node actions can occasionally corrupt the filesystem if it does not shut down properly, and sometimes the kubelet does not start properly.
|
||||
|
||||
|
||||
|
||||
#### Docker
|
||||
|
||||
The Docker provider can be used to run node scenarios against kind clusters.
|
||||
@@ -46,8 +55,13 @@ The Docker provider can be used to run node scenarios against kind clusters.
|
||||
|
||||
kind was primarily designed for testing Kubernetes itself, but may be used for local development or CI.
|
||||
|
||||
|
||||
|
||||
#### GCP
|
||||
How to set up GCP cli to run node scenarios is defined [here](cloud_setup.md#gcp).
|
||||
Cloud setup instructions can be found [here](cloud_setup.md#gcp). Sample scenario config can be found [here](https://github.com/krkn-chaos/krkn/blob/main/scenarios/openshift/gcp_node_scenarios.yml).
|
||||
|
||||
NOTE: The parallel option is not available for GCP, the api doesn't perform processes at the same time
|
||||
|
||||
|
||||
#### Openstack
|
||||
|
||||
@@ -60,9 +74,11 @@ The supported node level chaos scenarios on an OPENSTACK cloud are `node_stop_st
|
||||
To execute the scenario, ensure the value for `ssh_private_key` in the node scenarios config file is set with the correct private key file path for ssh connection to the helper node. Ensure passwordless ssh is configured on the host running Kraken and the helper node to avoid connection errors.
|
||||
|
||||
|
||||
|
||||
#### Azure
|
||||
|
||||
How to set up Azure cli to run node scenarios is defined [here](cloud_setup.md#azure).
|
||||
Cloud setup instructions can be found [here](cloud_setup.md#azure). Sample scenario config can be found [here](https://github.com/krkn-chaos/krkn/blob/main/scenarios/openshift/azure_node_scenarios.yml).
|
||||
|
||||
|
||||
|
||||
#### Alibaba
|
||||
@@ -73,43 +89,28 @@ How to set up Alibaba cli to run node scenarios is defined [here](cloud_setup.md
|
||||
. Releasing a node is 2 steps, stopping the node and then releasing it.
|
||||
|
||||
|
||||
|
||||
#### VMware
|
||||
How to set up VMware vSphere to run node scenarios is defined [here](cloud_setup.md#vmware)
|
||||
|
||||
This cloud type uses a different configuration style, see actions below and [example config file](../scenarios/openshift/vmware_node_scenarios.yml)
|
||||
|
||||
*vmware-node-terminate, vmware-node-reboot, vmware-node-stop, vmware-node-start*
|
||||
- vmware-node-terminate
|
||||
- vmware-node-reboot
|
||||
- vmware-node-stop
|
||||
- vmware-node-start
|
||||
|
||||
|
||||
|
||||
#### IBMCloud
|
||||
How to set up IBMCloud to run node scenarios is defined [here](cloud_setup.md#ibmcloud)
|
||||
|
||||
This cloud type uses a different configuration style, see actions below and [example config file](../scenarios/openshift/ibmcloud_node_scenarios.yml)
|
||||
|
||||
*ibmcloud-node-terminate, ibmcloud-node-reboot, ibmcloud-node-stop, ibmcloud-node-start
|
||||
*
|
||||
|
||||
|
||||
#### IBMCloud and Vmware example
|
||||
|
||||
|
||||
```
|
||||
- id: ibmcloud-node-stop
|
||||
config:
|
||||
name: "<node_name>"
|
||||
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
|
||||
runs: 1 # Number of times to inject each scenario under actions (will perform on same node each time)
|
||||
instance_count: 1 # Number of nodes to perform action/select that match the label selector
|
||||
timeout: 30 # Duration to wait for completion of node scenario injection
|
||||
skip_openshift_checks: False # Set to True if you don't want to wait for the status of the nodes to change on OpenShift before passing the scenario
|
||||
- id: ibmcloud-node-start
|
||||
config:
|
||||
name: "<node_name>" #Same name as before
|
||||
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
|
||||
runs: 1 # Number of times to inject each scenario under actions (will perform on same node each time)
|
||||
instance_count: 1 # Number of nodes to perform action/select that match the label selector
|
||||
timeout: 30 # Duration to wait for completion of node scenario injection
|
||||
skip_openshift_checks: False # Set to True if you don't want to wait for the status of the nodes to change on OpenShift before passing the scenario
|
||||
```
|
||||
- ibmcloud-node-terminate
|
||||
- ibmcloud-node-reboot
|
||||
- ibmcloud-node-stop
|
||||
- ibmcloud-node-start
|
||||
|
||||
|
||||
|
||||
@@ -118,60 +119,3 @@ This cloud type uses a different configuration style, see actions below and [exa
|
||||
**NOTE**: The `node_crash_scenario` and `stop_kubelet_scenario` scenario is supported independent of the cloud platform.
|
||||
|
||||
Use 'generic' or do not add the 'cloud_type' key to your scenario if your cluster is not set up using one of the current supported cloud types.
|
||||
|
||||
Node scenarios can be injected by placing the node scenarios config files under node_scenarios option in the kraken config. Refer to [node_scenarios_example](https://github.com/redhat-chaos/krkn/blob/main/scenarios/node_scenarios_example.yml) config file.
|
||||
|
||||
|
||||
```
|
||||
node_scenarios:
|
||||
- actions: # Node chaos scenarios to be injected.
|
||||
- node_stop_start_scenario
|
||||
- stop_start_kubelet_scenario
|
||||
- node_crash_scenario
|
||||
node_name: # Node on which scenario has to be injected.
|
||||
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: aws # Cloud type on which Kubernetes/OpenShift runs.
|
||||
- actions:
|
||||
- node_reboot_scenario
|
||||
node_name:
|
||||
label_selector: node-role.kubernetes.io/infra
|
||||
instance_count: 1
|
||||
timeout: 120
|
||||
cloud_type: azure
|
||||
- actions:
|
||||
- node_crash_scenario
|
||||
node_name:
|
||||
label_selector: node-role.kubernetes.io/infra
|
||||
instance_count: 1
|
||||
timeout: 120
|
||||
- actions:
|
||||
- stop_start_helper_node_scenario # Node chaos scenario for helper node.
|
||||
instance_count: 1
|
||||
timeout: 120
|
||||
helper_node_ip: # ip address of the helper node.
|
||||
service: # Check status of the services on the helper node.
|
||||
- haproxy
|
||||
- dhcpd
|
||||
- named
|
||||
ssh_private_key: /root/.ssh/id_rsa # ssh key to access the helper node.
|
||||
cloud_type: openstack
|
||||
- actions:
|
||||
- node_stop_start_scenario
|
||||
node_name:
|
||||
label_selector: node-role.kubernetes.io/worker
|
||||
instance_count: 1
|
||||
timeout: 120
|
||||
cloud_type: bm
|
||||
bmc_user: defaultuser # For baremetal (bm) cloud type. The default IPMI username. Optional if specified for all machines.
|
||||
bmc_password: defaultpass # For baremetal (bm) cloud type. The default IPMI password. Optional if specified for all machines.
|
||||
bmc_info: # This section is here to specify baremetal per-machine info, so it is optional if there is no per-machine info.
|
||||
node-1: # The node name for the baremetal machine
|
||||
bmc_addr: mgmt-machine1.example.com # Optional. For baremetal nodes with the IPMI BMC address missing from 'oc get bmh'.
|
||||
node-2:
|
||||
bmc_addr: mgmt-machine2.example.com
|
||||
bmc_user: user # The baremetal IPMI user. Overrides the default IPMI user specified above. Optional if the default is set.
|
||||
bmc_password: pass # The baremetal IPMI password. Overrides the default IPMI user specified above. Optional if the default is set.
|
||||
```
|
||||
|
||||
@@ -17,11 +17,8 @@ You can then create the scenario file with the following contents:
|
||||
config:
|
||||
namespace_pattern: ^kube-system$
|
||||
label_selector: k8s-app=kube-scheduler
|
||||
- id: wait-for-pods
|
||||
config:
|
||||
namespace_pattern: ^kube-system$
|
||||
label_selector: k8s-app=kube-scheduler
|
||||
count: 3
|
||||
krkn_pod_recovery_time: 120
|
||||
|
||||
```
|
||||
|
||||
Please adjust the schema reference to point to the [schema file](../scenarios/plugin.schema.json). This file will give you code completion and documentation for the available options in your IDE.
|
||||
|
||||
136
docs/scenario_plugin_api.md
Normal file
136
docs/scenario_plugin_api.md
Normal file
@@ -0,0 +1,136 @@
|
||||
# Scenario Plugin API:
|
||||
|
||||
This API enables seamless integration of Scenario Plugins for Krkn. Plugins are automatically
|
||||
detected and loaded by the plugin loader, provided they extend the `AbstractPluginScenario`
|
||||
abstract class, implement the required methods, and adhere to the specified [naming conventions](#naming-conventions).
|
||||
|
||||
## Plugin folder:
|
||||
|
||||
The plugin loader automatically loads plugins found in the `krkn/scenario_plugins` directory,
|
||||
relative to the Krkn root folder. Each plugin must reside in its own directory and can consist
|
||||
of one or more Python files. The entry point for each plugin is a Python class that extends the
|
||||
[AbstractPluginScenario](../krkn/scenario_plugins/abstract_scenario_plugin.py) abstract class and implements its required methods.
|
||||
|
||||
## `AbstractPluginScenario` abstract class:
|
||||
|
||||
This [abstract class](../krkn/scenario_plugins/abstract_scenario_plugin.py) defines the contract between the plugin and krkn.
|
||||
It consists of two methods:
|
||||
- `run(...)`
|
||||
- `get_scenario_type()`
|
||||
|
||||
Most IDEs can automatically suggest and implement the abstract methods defined in `AbstractPluginScenario`:
|
||||

|
||||
_(IntelliJ PyCharm)_
|
||||
|
||||
### `run(...)`
|
||||
|
||||
```python
|
||||
def run(
|
||||
self,
|
||||
run_uuid: str,
|
||||
scenario: str,
|
||||
krkn_config: dict[str, any],
|
||||
lib_telemetry: KrknTelemetryOpenshift,
|
||||
scenario_telemetry: ScenarioTelemetry,
|
||||
) -> int:
|
||||
|
||||
```
|
||||
|
||||
This method represents the entry point of the plugin and the first method
|
||||
that will be executed.
|
||||
#### Parameters:
|
||||
|
||||
- `run_uuid`:
|
||||
- the uuid of the chaos run generated by krkn for every single run.
|
||||
- `scenario`:
|
||||
- the config file of the scenario that is currently executed
|
||||
- `krkn_config`:
|
||||
- the full dictionary representation of the `config.yaml`
|
||||
- `lib_telemetry`
|
||||
- it is a composite object of all the [krkn-lib](https://krkn-chaos.github.io/krkn-lib-docs/modules.html) objects and methods needed by a krkn plugin to run.
|
||||
- `scenario_telemetry`
|
||||
- the `ScenarioTelemetry` object of the scenario that is currently executed
|
||||
|
||||
### Return value:
|
||||
Returns 0 if the scenario succeeds and 1 if it fails.
|
||||
> [!WARNING]
|
||||
> All the exception must be handled __inside__ the run method and not propagated.
|
||||
|
||||
### `get_scenario_types()`:
|
||||
|
||||
```python def get_scenario_types(self) -> list[str]:```
|
||||
|
||||
Indicates the scenario types specified in the `config.yaml`. For the plugin to be properly
|
||||
loaded, recognized and executed, it must be implemented and must return one or more
|
||||
strings matching `scenario_type` strings set in the config.
|
||||
> [!WARNING]
|
||||
> Multiple strings can map to a *single* `ScenarioPlugin` but the same string cannot map
|
||||
> to different plugins, an exception will be thrown for scenario_type redefinition.
|
||||
|
||||
> [!Note]
|
||||
> The `scenario_type` strings must be unique across all plugins; otherwise, an exception will be thrown.
|
||||
|
||||
## Naming conventions:
|
||||
A key requirement for developing a plugin that will be properly loaded
|
||||
by the plugin loader is following the established naming conventions.
|
||||
These conventions are enforced to maintain a uniform and readable codebase,
|
||||
making it easier to onboard new developers from the community.
|
||||
|
||||
### plugin folder:
|
||||
- the plugin folder must be placed in the `krkn/scenario_plugin` folder starting from the krkn root folder
|
||||
- the plugin folder __cannot__ contain the words
|
||||
- `plugin`
|
||||
- `scenario`
|
||||
### plugin file name and class name:
|
||||
- the plugin file containing the main plugin class must be named in _snake case_ and must have the suffix `_scenario_plugin`:
|
||||
- `example_scenario_plugin.py`
|
||||
- the main plugin class must named in _capital camel case_ and must have the suffix `ScenarioPlugin` :
|
||||
- `ExampleScenarioPlugin`
|
||||
- the file name must match the class name in the respective syntax:
|
||||
- `example_scenario_plugin.py` -> `ExampleScenarioPlugin`
|
||||
|
||||
### scenario type:
|
||||
- the scenario type __must__ be unique between all the scenarios.
|
||||
|
||||
### logging:
|
||||
If your new scenario does not adhere to the naming conventions, an error log will be generated in the Krkn standard output,
|
||||
providing details about the issue:
|
||||
|
||||
```commandline
|
||||
2024-10-03 18:06:31,136 [INFO] 📣 `ScenarioPluginFactory`: types from config.yaml mapped to respective classes for execution:
|
||||
2024-10-03 18:06:31,136 [INFO] ✅ type: application_outages_scenarios ➡️ `ApplicationOutageScenarioPlugin`
|
||||
2024-10-03 18:06:31,136 [INFO] ✅ types: [hog_scenarios, arcaflow_scenario] ➡️ `ArcaflowScenarioPlugin`
|
||||
2024-10-03 18:06:31,136 [INFO] ✅ type: container_scenarios ➡️ `ContainerScenarioPlugin`
|
||||
2024-10-03 18:06:31,136 [INFO] ✅ type: managedcluster_scenarios ➡️ `ManagedClusterScenarioPlugin`
|
||||
2024-10-03 18:06:31,137 [INFO] ✅ types: [pod_disruption_scenarios, pod_network_scenario, vmware_node_scenarios, ibmcloud_node_scenarios] ➡️ `NativeScenarioPlugin`
|
||||
2024-10-03 18:06:31,137 [INFO] ✅ type: network_chaos_scenarios ➡️ `NetworkChaosScenarioPlugin`
|
||||
2024-10-03 18:06:31,137 [INFO] ✅ type: node_scenarios ➡️ `NodeActionsScenarioPlugin`
|
||||
2024-10-03 18:06:31,137 [INFO] ✅ type: pvc_scenarios ➡️ `PvcScenarioPlugin`
|
||||
2024-10-03 18:06:31,137 [INFO] ✅ type: service_disruption_scenarios ➡️ `ServiceDisruptionScenarioPlugin`
|
||||
2024-10-03 18:06:31,137 [INFO] ✅ type: service_hijacking_scenarios ➡️ `ServiceHijackingScenarioPlugin`
|
||||
2024-10-03 18:06:31,137 [INFO] ✅ type: cluster_shut_down_scenarios ➡️ `ShutDownScenarioPlugin`
|
||||
2024-10-03 18:06:31,137 [INFO] ✅ type: syn_flood_scenarios ➡️ `SynFloodScenarioPlugin`
|
||||
2024-10-03 18:06:31,137 [INFO] ✅ type: time_scenarios ➡️ `TimeActionsScenarioPlugin`
|
||||
2024-10-03 18:06:31,137 [INFO] ✅ type: zone_outages_scenarios ➡️ `ZoneOutageScenarioPlugin`
|
||||
|
||||
2024-09-18 14:48:41,735 [INFO] Failed to load Scenario Plugins:
|
||||
|
||||
2024-09-18 14:48:41,735 [ERROR] ⛔ Class: ExamplePluginScenario Module: krkn.scenario_plugins.example.example_scenario_plugin
|
||||
2024-09-18 14:48:41,735 [ERROR] ⚠️ scenario plugin class name must start with a capital letter, end with `ScenarioPlugin`, and cannot be just `ScenarioPlugin`.
|
||||
```
|
||||
|
||||
>[!NOTE]
|
||||
>If you're trying to understand how the scenario types in the config.yaml are mapped to
|
||||
> their corresponding plugins, this log will guide you!
|
||||
> Each scenario plugin class mentioned can be found in the `krkn/scenario_plugin` folder
|
||||
> simply convert the camel case notation and remove the ScenarioPlugin suffix from the class name
|
||||
> e.g `ShutDownScenarioPlugin` class can be found in the `krkn/scenario_plugin/shut_down` folder.
|
||||
|
||||
## ExampleScenarioPlugin
|
||||
The [ExampleScenarioPlugin](../krkn/tests/test_classes/example_scenario_plugin.py) class included in the tests folder can be used as a scaffolding for new plugins and it is considered
|
||||
part of the documentation.
|
||||
|
||||
For any questions or further guidance, feel free to reach out to us on the
|
||||
[Kubernetes workspace](https://kubernetes.slack.com/) in the `#krkn` channel.
|
||||
We’re happy to assist. Now, __release the Krkn!__
|
||||
|
||||
BIN
docs/scenario_plugin_pycharm.gif
Normal file
BIN
docs/scenario_plugin_pycharm.gif
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 340 KiB |
@@ -16,7 +16,7 @@ Set to '^.*$' and label_selector to "" to randomly select any namespace in your
|
||||
|
||||
**sleep:** Number of seconds to wait between each iteration/count of killing namespaces. Defaults to 10 seconds if not set
|
||||
|
||||
Refer to [namespace_scenarios_example](https://github.com/redhat-chaos/krkn/blob/main/scenarios/regex_namespace.yaml) config file.
|
||||
Refer to [namespace_scenarios_example](https://github.com/krkn-chaos/krkn/blob/main/scenarios/regex_namespace.yaml) config file.
|
||||
|
||||
```
|
||||
scenarios:
|
||||
|
||||
80
docs/service_hijacking_scenarios.md
Normal file
80
docs/service_hijacking_scenarios.md
Normal file
@@ -0,0 +1,80 @@
|
||||
### Service Hijacking Scenarios
|
||||
|
||||
Service Hijacking Scenarios aim to simulate fake HTTP responses from a workload targeted by a
|
||||
`Service` already deployed in the cluster.
|
||||
This scenario is executed by deploying a custom-made web service and modifying the target `Service`
|
||||
selector to direct traffic to this web service for a specified duration.
|
||||
|
||||
The web service's source code is available [here](https://github.com/krkn-chaos/krkn-service-hijacking).
|
||||
It employs a time-based test plan from the scenario configuration file, which specifies the behavior of resources during the chaos scenario as follows:
|
||||
|
||||
```yaml
|
||||
service_target_port: http-web-svc # The port of the service to be hijacked (can be named or numeric, based on the workload and service configuration).
|
||||
service_name: nginx-service # The name of the service that will be hijacked.
|
||||
service_namespace: default # The namespace where the target service is located.
|
||||
image: quay.io/krkn-chaos/krkn-service-hijacking:v0.1.3 # Image of the krkn web service to be deployed to receive traffic.
|
||||
chaos_duration: 30 # Total duration of the chaos scenario in seconds.
|
||||
plan:
|
||||
- resource: "/list/index.php" # Specifies the resource or path to respond to in the scenario. For paths, both the path and query parameters are captured but ignored. For resources, only query parameters are captured.
|
||||
|
||||
steps: # A time-based plan consisting of steps can be defined for each resource.
|
||||
GET: # One or more HTTP methods can be specified for each step. Note: Non-standard methods are supported for fully custom web services (e.g., using NONEXISTENT instead of POST).
|
||||
|
||||
- duration: 15 # Duration in seconds for this step before moving to the next one, if defined. Otherwise, this step will continue until the chaos scenario ends.
|
||||
|
||||
status: 500 # HTTP status code to be returned in this step.
|
||||
mime_type: "application/json" # MIME type of the response for this step.
|
||||
payload: | # The response payload for this step.
|
||||
{
|
||||
"status":"internal server error"
|
||||
}
|
||||
- duration: 15
|
||||
status: 201
|
||||
mime_type: "application/json"
|
||||
payload: |
|
||||
{
|
||||
"status":"resource created"
|
||||
}
|
||||
POST:
|
||||
- duration: 15
|
||||
status: 401
|
||||
mime_type: "application/json"
|
||||
payload: |
|
||||
{
|
||||
"status": "unauthorized"
|
||||
}
|
||||
- duration: 15
|
||||
status: 404
|
||||
mime_type: "text/plain"
|
||||
payload: "not found"
|
||||
|
||||
|
||||
```
|
||||
The scenario will focus on the `service_name` within the `service_namespace`,
|
||||
substituting the selector with a randomly generated one, which is added as a label in the mock service manifest.
|
||||
This allows multiple scenarios to be executed in the same namespace, each targeting different services without
|
||||
causing conflicts.
|
||||
|
||||
The newly deployed mock web service will expose a `service_target_port`,
|
||||
which can be either a named or numeric port based on the service configuration.
|
||||
This ensures that the Service correctly routes HTTP traffic to the mock web service during the chaos run.
|
||||
|
||||
Each step will last for `duration` seconds from the deployment of the mock web service in the cluster.
|
||||
For each HTTP resource, defined as a top-level YAML property of the plan
|
||||
(it could be a specific resource, e.g., /list/index.php, or a path-based resource typical in MVC frameworks),
|
||||
one or more HTTP request methods can be specified. Both standard and custom request methods are supported.
|
||||
|
||||
During this time frame, the web service will respond with:
|
||||
|
||||
- `status`: The [HTTP status code](https://datatracker.ietf.org/doc/html/rfc7231#section-6) (can be standard or custom).
|
||||
- `mime_type`: The [MIME type](https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types) (can be standard or custom).
|
||||
- `payload`: The response body to be returned to the client.
|
||||
|
||||
At the end of the step `duration`, the web service will proceed to the next step (if available) until
|
||||
the global `chaos_duration` concludes. At this point, the original service will be restored,
|
||||
and the custom web service and its resources will be undeployed.
|
||||
|
||||
__NOTE__: Some clients (e.g., cURL, jQuery) may optimize queries using lightweight methods (like HEAD or OPTIONS)
|
||||
to probe API behavior. If these methods are not defined in the test plan, the web service may respond with
|
||||
a `405` or `404` status code. If you encounter unexpected behavior, consider this use case.
|
||||
|
||||
33
docs/syn_flood_scenarios.md
Normal file
33
docs/syn_flood_scenarios.md
Normal file
@@ -0,0 +1,33 @@
|
||||
### SYN Flood Scenarios
|
||||
|
||||
This scenario generates a substantial amount of TCP traffic directed at one or more Kubernetes services within
|
||||
the cluster to test the server's resiliency under extreme traffic conditions.
|
||||
It can also target hosts outside the cluster by specifying a reachable IP address or hostname.
|
||||
This scenario leverages the distributed nature of Kubernetes clusters to instantiate multiple instances
|
||||
of the same pod against a single host, significantly increasing the effectiveness of the attack.
|
||||
The configuration also allows for the specification of multiple node selectors, enabling Kubernetes to schedule
|
||||
the attacker pods on a user-defined subset of nodes to make the test more realistic.
|
||||
|
||||
```yaml
|
||||
packet-size: 120 # hping3 packet size
|
||||
window-size: 64 # hping 3 TCP window size
|
||||
duration: 10 # chaos scenario duration
|
||||
namespace: default # namespace where the target service(s) are deployed
|
||||
target-service: target-svc # target service name (if set target-service-label must be empty)
|
||||
target-port: 80 # target service TCP port
|
||||
target-service-label : "" # target service label, can be used to target multiple target at the same time
|
||||
# if they have the same label set (if set target-service must be empty)
|
||||
number-of-pods: 2 # number of attacker pod instantiated per each target
|
||||
image: quay.io/krkn-chaos/krkn-syn-flood # syn flood attacker container image
|
||||
attacker-nodes: # this will set the node affinity to schedule the attacker node. Per each node label selector
|
||||
# can be specified multiple values in this way the kube scheduler will schedule the attacker pods
|
||||
# in the best way possible based on the provided labels. Multiple labels can be specified
|
||||
kubernetes.io/hostname:
|
||||
- host_1
|
||||
- host_2
|
||||
kubernetes.io/os:
|
||||
- linux
|
||||
|
||||
```
|
||||
|
||||
The attacker container source code is available [here](https://github.com/krkn-chaos/krkn-syn-flood).
|
||||
@@ -16,7 +16,7 @@ Configuration Options:
|
||||
|
||||
**object_name:** List of the names of pods or nodes you want to skew.
|
||||
|
||||
Refer to [time_scenarios_example](https://github.com/redhat-chaos/krkn/blob/main/scenarios/time_scenarios_example.yml) config file.
|
||||
Refer to [time_scenarios_example](https://github.com/krkn-chaos/krkn/blob/main/scenarios/time_scenarios_example.yml) config file.
|
||||
|
||||
```
|
||||
time_scenarios:
|
||||
|
||||
@@ -13,10 +13,12 @@ zone_outage: # Scenario to create an out
|
||||
duration: 600 # Duration in seconds after which the zone will be back online.
|
||||
vpc_id: # Cluster virtual private network to target.
|
||||
subnet_id: [subnet1, subnet2] # List of subnet-id's to deny both ingress and egress traffic.
|
||||
default_acl_id: acl-xxxxxxxx # (Optional) ID of an existing network ACL to use instead of creating a new one. If provided, this ACL will not be deleted after the scenario.
|
||||
```
|
||||
|
||||
**NOTE**: vpc_id and subnet_id can be obtained from the cloud web console by selecting one of the instances in the targeted zone ( us-west-2a for example ).
|
||||
**NOTE**: Multiple zones will experience downtime in case of targeting multiple subnets which might have an impact on the cluster health especially if the zones have control plane components deployed.
|
||||
**NOTE**: default_acl_id can be obtained from the AWS VPC Console by selecting "Network ACLs" from the left sidebar ( the ID will be in the format 'acl-xxxxxxxx' ). Make sure the selected ACL has the desired ingress/egress rules for your outage scenario ( i.e., deny all ).
|
||||
|
||||
##### Debugging steps in case of failures
|
||||
In case of failures during the steps which revert back the network acl to allow traffic and bring back the cluster nodes in the zone, the nodes in the particular zone will be in `NotReady` condition. Here is how to fix it:
|
||||
|
||||
@@ -2,6 +2,9 @@ kind: Cluster
|
||||
apiVersion: kind.x-k8s.io/v1alpha4
|
||||
nodes:
|
||||
- role: control-plane
|
||||
extraPortMappings:
|
||||
- containerPort: 30036
|
||||
hostPort: 8888
|
||||
- role: control-plane
|
||||
- role: control-plane
|
||||
- role: worker
|
||||
|
||||
@@ -1,86 +0,0 @@
|
||||
import yaml
|
||||
import logging
|
||||
import time
|
||||
import kraken.cerberus.setup as cerberus
|
||||
from jinja2 import Template
|
||||
import kraken.invoke.command as runcommand
|
||||
from krkn_lib.telemetry.k8s import KrknTelemetryKubernetes
|
||||
from krkn_lib.models.telemetry import ScenarioTelemetry
|
||||
from krkn_lib.utils.functions import get_yaml_item_value, log_exception
|
||||
|
||||
|
||||
# Reads the scenario config, applies and deletes a network policy to
|
||||
# block the traffic for the specified duration
|
||||
def run(scenarios_list, config, wait_duration, telemetry: KrknTelemetryKubernetes) -> (list[str], list[ScenarioTelemetry]):
|
||||
failed_post_scenarios = ""
|
||||
scenario_telemetries: list[ScenarioTelemetry] = []
|
||||
failed_scenarios = []
|
||||
for app_outage_config in scenarios_list:
|
||||
scenario_telemetry = ScenarioTelemetry()
|
||||
scenario_telemetry.scenario = app_outage_config
|
||||
scenario_telemetry.startTimeStamp = time.time()
|
||||
telemetry.set_parameters_base64(scenario_telemetry, app_outage_config)
|
||||
if len(app_outage_config) > 1:
|
||||
try:
|
||||
with open(app_outage_config, "r") as f:
|
||||
app_outage_config_yaml = yaml.full_load(f)
|
||||
scenario_config = app_outage_config_yaml["application_outage"]
|
||||
pod_selector = get_yaml_item_value(
|
||||
scenario_config, "pod_selector", "{}"
|
||||
)
|
||||
traffic_type = get_yaml_item_value(
|
||||
scenario_config, "block", "[Ingress, Egress]"
|
||||
)
|
||||
namespace = get_yaml_item_value(
|
||||
scenario_config, "namespace", ""
|
||||
)
|
||||
duration = get_yaml_item_value(
|
||||
scenario_config, "duration", 60
|
||||
)
|
||||
|
||||
start_time = int(time.time())
|
||||
|
||||
network_policy_template = """---
|
||||
apiVersion: networking.k8s.io/v1
|
||||
kind: NetworkPolicy
|
||||
metadata:
|
||||
name: kraken-deny
|
||||
spec:
|
||||
podSelector:
|
||||
matchLabels: {{ pod_selector }}
|
||||
policyTypes: {{ traffic_type }}
|
||||
"""
|
||||
t = Template(network_policy_template)
|
||||
rendered_spec = t.render(pod_selector=pod_selector, traffic_type=traffic_type)
|
||||
# Write the rendered template to a file
|
||||
with open("kraken_network_policy.yaml", "w") as f:
|
||||
f.write(rendered_spec)
|
||||
# Block the traffic by creating network policy
|
||||
logging.info("Creating the network policy")
|
||||
runcommand.invoke(
|
||||
"kubectl create -f %s -n %s --validate=false" % ("kraken_network_policy.yaml", namespace)
|
||||
)
|
||||
|
||||
# wait for the specified duration
|
||||
logging.info("Waiting for the specified duration in the config: %s" % (duration))
|
||||
time.sleep(duration)
|
||||
|
||||
# unblock the traffic by deleting the network policy
|
||||
logging.info("Deleting the network policy")
|
||||
runcommand.invoke("kubectl delete -f %s -n %s" % ("kraken_network_policy.yaml", namespace))
|
||||
|
||||
logging.info("End of scenario. Waiting for the specified duration: %s" % (wait_duration))
|
||||
time.sleep(wait_duration)
|
||||
|
||||
end_time = int(time.time())
|
||||
cerberus.publish_kraken_status(config, failed_post_scenarios, start_time, end_time)
|
||||
except Exception as e :
|
||||
scenario_telemetry.exitStatus = 1
|
||||
failed_scenarios.append(app_outage_config)
|
||||
log_exception(app_outage_config)
|
||||
else:
|
||||
scenario_telemetry.exitStatus = 0
|
||||
scenario_telemetry.endTimeStamp = time.time()
|
||||
scenario_telemetries.append(scenario_telemetry)
|
||||
return failed_scenarios, scenario_telemetries
|
||||
|
||||
@@ -1,2 +0,0 @@
|
||||
from .arcaflow_plugin import *
|
||||
from .context_auth import ContextAuth
|
||||
@@ -1,178 +0,0 @@
|
||||
import time
|
||||
import arcaflow
|
||||
import os
|
||||
import yaml
|
||||
import logging
|
||||
from pathlib import Path
|
||||
from typing import List
|
||||
from .context_auth import ContextAuth
|
||||
from krkn_lib.telemetry.k8s import KrknTelemetryKubernetes
|
||||
from krkn_lib.models.telemetry import ScenarioTelemetry
|
||||
|
||||
|
||||
def run(scenarios_list: List[str], kubeconfig_path: str, telemetry: KrknTelemetryKubernetes) -> (list[str], list[ScenarioTelemetry]):
|
||||
scenario_telemetries: list[ScenarioTelemetry] = []
|
||||
failed_post_scenarios = []
|
||||
for scenario in scenarios_list:
|
||||
scenario_telemetry = ScenarioTelemetry()
|
||||
scenario_telemetry.scenario = scenario
|
||||
scenario_telemetry.startTimeStamp = time.time()
|
||||
telemetry.set_parameters_base64(scenario_telemetry,scenario)
|
||||
engine_args = build_args(scenario)
|
||||
status_code = run_workflow(engine_args, kubeconfig_path)
|
||||
scenario_telemetry.endTimeStamp = time.time()
|
||||
scenario_telemetry.exitStatus = status_code
|
||||
scenario_telemetries.append(scenario_telemetry)
|
||||
if status_code != 0:
|
||||
failed_post_scenarios.append(scenario)
|
||||
return failed_post_scenarios, scenario_telemetries
|
||||
|
||||
|
||||
def run_workflow(engine_args: arcaflow.EngineArgs, kubeconfig_path: str) -> int:
|
||||
set_arca_kubeconfig(engine_args, kubeconfig_path)
|
||||
exit_status = arcaflow.run(engine_args)
|
||||
return exit_status
|
||||
|
||||
|
||||
def build_args(input_file: str) -> arcaflow.EngineArgs:
|
||||
"""sets the kubeconfig parsed by setArcaKubeConfig as an input to the arcaflow workflow"""
|
||||
context = Path(input_file).parent
|
||||
workflow = "{}/workflow.yaml".format(context)
|
||||
config = "{}/config.yaml".format(context)
|
||||
if not os.path.exists(context):
|
||||
raise Exception(
|
||||
"context folder for arcaflow workflow not found: {}".format(
|
||||
context)
|
||||
)
|
||||
if not os.path.exists(input_file):
|
||||
raise Exception(
|
||||
"input file for arcaflow workflow not found: {}".format(input_file))
|
||||
if not os.path.exists(workflow):
|
||||
raise Exception(
|
||||
"workflow file for arcaflow workflow not found: {}".format(
|
||||
workflow)
|
||||
)
|
||||
if not os.path.exists(config):
|
||||
raise Exception(
|
||||
"configuration file for arcaflow workflow not found: {}".format(
|
||||
config)
|
||||
)
|
||||
|
||||
engine_args = arcaflow.EngineArgs()
|
||||
engine_args.context = context
|
||||
engine_args.config = config
|
||||
engine_args.input = input_file
|
||||
return engine_args
|
||||
|
||||
|
||||
def set_arca_kubeconfig(engine_args: arcaflow.EngineArgs, kubeconfig_path: str):
|
||||
|
||||
context_auth = ContextAuth()
|
||||
if not os.path.exists(kubeconfig_path):
|
||||
raise Exception("kubeconfig not found in {}".format(kubeconfig_path))
|
||||
|
||||
with open(kubeconfig_path, "r") as stream:
|
||||
try:
|
||||
kubeconfig = yaml.safe_load(stream)
|
||||
context_auth.fetch_auth_data(kubeconfig)
|
||||
except Exception as e:
|
||||
logging.error("impossible to read kubeconfig file in: {}".format(
|
||||
kubeconfig_path))
|
||||
raise e
|
||||
|
||||
kubeconfig_str = set_kubeconfig_auth(kubeconfig, context_auth)
|
||||
|
||||
with open(engine_args.input, "r") as stream:
|
||||
input_file = yaml.safe_load(stream)
|
||||
if "input_list" in input_file and isinstance(input_file["input_list"],list):
|
||||
for index, _ in enumerate(input_file["input_list"]):
|
||||
if isinstance(input_file["input_list"][index], dict):
|
||||
input_file["input_list"][index]["kubeconfig"] = kubeconfig_str
|
||||
else:
|
||||
input_file["kubeconfig"] = kubeconfig_str
|
||||
stream.close()
|
||||
with open(engine_args.input, "w") as stream:
|
||||
yaml.safe_dump(input_file, stream)
|
||||
|
||||
with open(engine_args.config, "r") as stream:
|
||||
config_file = yaml.safe_load(stream)
|
||||
if config_file["deployers"]["image"]["deployer_name"] == "kubernetes":
|
||||
kube_connection = set_kubernetes_deployer_auth(config_file["deployers"]["image"]["connection"], context_auth)
|
||||
config_file["deployers"]["image"]["connection"]=kube_connection
|
||||
with open(engine_args.config, "w") as stream:
|
||||
yaml.safe_dump(config_file, stream,explicit_start=True, width=4096)
|
||||
|
||||
|
||||
def set_kubernetes_deployer_auth(deployer: any, context_auth: ContextAuth) -> any:
|
||||
if context_auth.clusterHost is not None :
|
||||
deployer["host"] = context_auth.clusterHost
|
||||
if context_auth.clientCertificateData is not None :
|
||||
deployer["cert"] = context_auth.clientCertificateData
|
||||
if context_auth.clientKeyData is not None:
|
||||
deployer["key"] = context_auth.clientKeyData
|
||||
if context_auth.clusterCertificateData is not None:
|
||||
deployer["cacert"] = context_auth.clusterCertificateData
|
||||
if context_auth.username is not None:
|
||||
deployer["username"] = context_auth.username
|
||||
if context_auth.password is not None:
|
||||
deployer["password"] = context_auth.password
|
||||
if context_auth.bearerToken is not None:
|
||||
deployer["bearerToken"] = context_auth.bearerToken
|
||||
return deployer
|
||||
|
||||
|
||||
def set_kubeconfig_auth(kubeconfig: any, context_auth: ContextAuth) -> str:
|
||||
"""
|
||||
Builds an arcaflow-compatible kubeconfig representation and returns it as a string.
|
||||
In order to run arcaflow plugins in kubernetes/openshift the kubeconfig must contain client certificate/key
|
||||
and server certificate base64 encoded within the kubeconfig file itself in *-data fields. That is not always the
|
||||
case, infact kubeconfig may contain filesystem paths to those files, this function builds an arcaflow-compatible
|
||||
kubeconfig file and returns it as a string that can be safely included in input.yaml
|
||||
"""
|
||||
|
||||
if "current-context" not in kubeconfig.keys():
|
||||
raise Exception(
|
||||
"invalid kubeconfig file, impossible to determine current-context"
|
||||
)
|
||||
user_id = None
|
||||
cluster_id = None
|
||||
user_name = None
|
||||
cluster_name = None
|
||||
current_context = kubeconfig["current-context"]
|
||||
for context in kubeconfig["contexts"]:
|
||||
if context["name"] == current_context:
|
||||
user_name = context["context"]["user"]
|
||||
cluster_name = context["context"]["cluster"]
|
||||
if user_name is None:
|
||||
raise Exception(
|
||||
"user not set for context {} in kubeconfig file".format(current_context)
|
||||
)
|
||||
if cluster_name is None:
|
||||
raise Exception(
|
||||
"cluster not set for context {} in kubeconfig file".format(current_context)
|
||||
)
|
||||
|
||||
for index, user in enumerate(kubeconfig["users"]):
|
||||
if user["name"] == user_name:
|
||||
user_id = index
|
||||
for index, cluster in enumerate(kubeconfig["clusters"]):
|
||||
if cluster["name"] == cluster_name:
|
||||
cluster_id = index
|
||||
|
||||
if cluster_id is None:
|
||||
raise Exception(
|
||||
"no cluster {} found in kubeconfig users".format(cluster_name)
|
||||
)
|
||||
if "client-certificate" in kubeconfig["users"][user_id]["user"]:
|
||||
kubeconfig["users"][user_id]["user"]["client-certificate-data"] = context_auth.clientCertificateDataBase64
|
||||
del kubeconfig["users"][user_id]["user"]["client-certificate"]
|
||||
|
||||
if "client-key" in kubeconfig["users"][user_id]["user"]:
|
||||
kubeconfig["users"][user_id]["user"]["client-key-data"] = context_auth.clientKeyDataBase64
|
||||
del kubeconfig["users"][user_id]["user"]["client-key"]
|
||||
|
||||
if "certificate-authority" in kubeconfig["clusters"][cluster_id]["cluster"]:
|
||||
kubeconfig["clusters"][cluster_id]["cluster"]["certificate-authority-data"] = context_auth.clusterCertificateDataBase64
|
||||
del kubeconfig["clusters"][cluster_id]["cluster"]["certificate-authority"]
|
||||
kubeconfig_str = yaml.dump(kubeconfig)
|
||||
return kubeconfig_str
|
||||
@@ -1,90 +0,0 @@
|
||||
import logging
|
||||
|
||||
import pandas as pd
|
||||
import kraken.chaos_recommender.kraken_tests as kraken_tests
|
||||
import time
|
||||
|
||||
threshold = .7 # Adjust the threshold as needed
|
||||
heatmap_cpu_threshold = .5
|
||||
heatmap_mem_threshold = .5
|
||||
|
||||
KRAKEN_TESTS_PATH = "./kraken_chaos_tests.txt"
|
||||
|
||||
#Placeholder, this should be done with topology
|
||||
def return_critical_services():
|
||||
return ["web", "cart"]
|
||||
|
||||
|
||||
def load_telemetry_data(file_path):
|
||||
data = pd.read_csv(file_path, delimiter=r"\s+")
|
||||
return data
|
||||
|
||||
def calculate_zscores(data):
|
||||
zscores = pd.DataFrame()
|
||||
zscores["Service"] = data["service"]
|
||||
zscores["CPU"] = (data["CPU"] - data["CPU"].mean()) / data["CPU"].std()
|
||||
zscores["Memory"] = (data["MEM"] - data["MEM"].mean()) / data["MEM"].std()
|
||||
zscores["Network"] = (data["NETWORK"] - data["NETWORK"].mean()) / data["NETWORK"].std()
|
||||
return zscores
|
||||
|
||||
def identify_outliers(data):
|
||||
outliers_cpu = data[data["CPU"] > threshold]["Service"].tolist()
|
||||
outliers_memory = data[data["Memory"] > threshold]["Service"].tolist()
|
||||
outliers_network = data[data["Network"] > threshold]["Service"].tolist()
|
||||
|
||||
return outliers_cpu, outliers_memory, outliers_network
|
||||
|
||||
|
||||
def get_services_above_heatmap_threshold(dataframe, cpu_threshold, mem_threshold):
|
||||
# Filter the DataFrame based on CPU_HEATMAP and MEM_HEATMAP thresholds
|
||||
filtered_df = dataframe[((dataframe['CPU']/dataframe['CPU_LIMITS']) > cpu_threshold)]
|
||||
# Get the lists of services
|
||||
cpu_services = filtered_df['service'].tolist()
|
||||
|
||||
filtered_df = dataframe[((dataframe['MEM']/dataframe['MEM_LIMITS']) > mem_threshold)]
|
||||
mem_services = filtered_df['service'].tolist()
|
||||
|
||||
return cpu_services, mem_services
|
||||
|
||||
|
||||
def analysis(file_path, chaos_tests_config):
|
||||
# Load the telemetry data from file
|
||||
data = load_telemetry_data(file_path)
|
||||
|
||||
# Calculate Z-scores for CPU, Memory, and Network columns
|
||||
zscores = calculate_zscores(data)
|
||||
|
||||
# Identify outliers
|
||||
outliers_cpu, outliers_memory, outliers_network = identify_outliers(zscores)
|
||||
cpu_services, mem_services = get_services_above_heatmap_threshold(data, heatmap_cpu_threshold, heatmap_mem_threshold)
|
||||
|
||||
# Display the identified outliers
|
||||
logging.info("======================== Profiling ==================================")
|
||||
logging.info(f"CPU outliers: {outliers_cpu}")
|
||||
logging.info(f"Memory outliers: {outliers_memory}")
|
||||
logging.info(f"Network outliers: {outliers_network}")
|
||||
logging.info("===================== HeatMap Analysis ==============================")
|
||||
|
||||
if cpu_services:
|
||||
logging.info("Services with CPU_HEATMAP above threshold:", cpu_services)
|
||||
else:
|
||||
logging.info("There are no services that are using siginificant CPU compared to their assigned limits (infinite in case no limits are set).")
|
||||
if mem_services:
|
||||
logging.info("Services with MEM_HEATMAP above threshold:", mem_services)
|
||||
else:
|
||||
logging.info("There are no services that are using siginificant MEMORY compared to their assigned limits (infinite in case no limits are set).")
|
||||
time.sleep(2)
|
||||
logging.info("======================= Recommendations =============================")
|
||||
if cpu_services:
|
||||
logging.info(f"Recommended tests for {str(cpu_services)} :\n {chaos_tests_config['CPU']}")
|
||||
logging.info("\n")
|
||||
if mem_services:
|
||||
logging.info(f"Recommended tests for {str(mem_services)} :\n {chaos_tests_config['MEM']}")
|
||||
logging.info("\n")
|
||||
|
||||
if outliers_network:
|
||||
logging.info(f"Recommended tests for str(outliers_network) :\n {chaos_tests_config['NETWORK']}")
|
||||
logging.info("\n")
|
||||
|
||||
logging.info("\n")
|
||||
logging.info("Please check data in utilisation.txt for further analysis")
|
||||
@@ -1,96 +0,0 @@
|
||||
import logging
|
||||
|
||||
import pandas
|
||||
from prometheus_api_client import PrometheusConnect
|
||||
import pandas as pd
|
||||
import urllib3
|
||||
|
||||
|
||||
saved_metrics_path = "./utilisation.txt"
|
||||
|
||||
def convert_data_to_dataframe(data, label):
|
||||
df = pd.DataFrame()
|
||||
df['service'] = [item['metric']['pod'] for item in data]
|
||||
df[label] = [item['value'][1] for item in data]
|
||||
|
||||
return df
|
||||
|
||||
|
||||
def convert_data(data, service):
|
||||
|
||||
result = {}
|
||||
for entry in data:
|
||||
pod_name = entry['metric']['pod']
|
||||
value = entry['value'][1]
|
||||
result[pod_name] = value
|
||||
return result.get(service, '100000000000') # for those pods whose limits are not defined they can take as much resources, there assigning a very high value
|
||||
|
||||
def save_utilization_to_file(cpu_data, cpu_limits_result, mem_data, mem_limits_result, network_data, filename):
|
||||
df_cpu = convert_data_to_dataframe(cpu_data, "CPU")
|
||||
merged_df = pd.DataFrame(columns=['service','CPU','CPU_LIMITS','MEM','MEM_LIMITS','NETWORK'])
|
||||
services = df_cpu.service.unique()
|
||||
logging.info(services)
|
||||
|
||||
for s in services:
|
||||
|
||||
new_row_df = pd.DataFrame( {"service": s, "CPU" : convert_data(cpu_data, s),
|
||||
"CPU_LIMITS" : convert_data(cpu_limits_result, s),
|
||||
"MEM" : convert_data(mem_data, s), "MEM_LIMITS" : convert_data(mem_limits_result, s),
|
||||
"NETWORK" : convert_data(network_data, s)}, index=[0])
|
||||
merged_df = pd.concat([merged_df, new_row_df], ignore_index=True)
|
||||
|
||||
|
||||
|
||||
# Convert columns to string
|
||||
merged_df['CPU'] = merged_df['CPU'].astype(str)
|
||||
merged_df['MEM'] = merged_df['MEM'].astype(str)
|
||||
merged_df['CPU_LIMITS'] = merged_df['CPU_LIMITS'].astype(str)
|
||||
merged_df['MEM_LIMITS'] = merged_df['MEM_LIMITS'].astype(str)
|
||||
merged_df['NETWORK'] = merged_df['NETWORK'].astype(str)
|
||||
|
||||
# Extract integer part before the decimal point
|
||||
merged_df['CPU'] = merged_df['CPU'].str.split('.').str[0]
|
||||
merged_df['MEM'] = merged_df['MEM'].str.split('.').str[0]
|
||||
merged_df['CPU_LIMITS'] = merged_df['CPU_LIMITS'].str.split('.').str[0]
|
||||
merged_df['MEM_LIMITS'] = merged_df['MEM_LIMITS'].str.split('.').str[0]
|
||||
merged_df['NETWORK'] = merged_df['NETWORK'].str.split('.').str[0]
|
||||
|
||||
merged_df.to_csv(filename, sep='\t', index=False)
|
||||
|
||||
def fetch_utilization_from_prometheus(prometheus_endpoint, auth_token, namespace, scrape_duration):
|
||||
urllib3.disable_warnings()
|
||||
prometheus = PrometheusConnect(url=prometheus_endpoint, headers={'Authorization':'Bearer {}'.format(auth_token)}, disable_ssl=True)
|
||||
|
||||
# Fetch CPU utilization
|
||||
cpu_query = 'sum (rate (container_cpu_usage_seconds_total{image!="", namespace="%s"}[%s])) by (pod) *1000' % (namespace,scrape_duration)
|
||||
logging.info(cpu_query)
|
||||
cpu_result = prometheus.custom_query(cpu_query)
|
||||
cpu_data = cpu_result
|
||||
|
||||
|
||||
cpu_limits_query = '(sum by (pod) (kube_pod_container_resource_limits{resource="cpu", namespace="%s"}))*1000' %(namespace)
|
||||
logging.info(cpu_limits_query)
|
||||
cpu_limits_result = prometheus.custom_query(cpu_limits_query)
|
||||
|
||||
|
||||
mem_query = 'sum by (pod) (avg_over_time(container_memory_usage_bytes{image!="", namespace="%s"}[%s]))' % (namespace, scrape_duration)
|
||||
logging.info(mem_query)
|
||||
mem_result = prometheus.custom_query(mem_query)
|
||||
mem_data = mem_result
|
||||
|
||||
mem_limits_query = 'sum by (pod) (kube_pod_container_resource_limits{resource="memory", namespace="%s"}) ' %(namespace)
|
||||
logging.info(mem_limits_query)
|
||||
mem_limits_result = prometheus.custom_query(mem_limits_query)
|
||||
|
||||
|
||||
network_query = 'sum by (pod) ((avg_over_time(container_network_transmit_bytes_total{namespace="%s"}[%s])) + \
|
||||
(avg_over_time(container_network_receive_bytes_total{namespace="%s"}[%s])))' % (namespace, scrape_duration, namespace, scrape_duration)
|
||||
network_result = prometheus.custom_query(network_query)
|
||||
logging.info(network_query)
|
||||
network_data = network_result
|
||||
|
||||
|
||||
save_utilization_to_file(cpu_data, cpu_limits_result, mem_data, mem_limits_result, network_data, saved_metrics_path)
|
||||
return saved_metrics_path
|
||||
|
||||
|
||||
@@ -1,892 +0,0 @@
|
||||
import logging
|
||||
import re
|
||||
import sys
|
||||
import time
|
||||
|
||||
from kubernetes import client, config, utils, watch
|
||||
from kubernetes.client.rest import ApiException
|
||||
from kubernetes.dynamic.client import DynamicClient
|
||||
from kubernetes.stream import stream
|
||||
|
||||
from ..kubernetes.resources import (PVC, ChaosEngine, ChaosResult, Container,
|
||||
LitmusChaosObject, Pod, Volume,
|
||||
VolumeMount)
|
||||
|
||||
kraken_node_name = ""
|
||||
|
||||
|
||||
# Load kubeconfig and initialize kubernetes python client
|
||||
def initialize_clients(kubeconfig_path):
|
||||
global cli
|
||||
global batch_cli
|
||||
global watch_resource
|
||||
global api_client
|
||||
global dyn_client
|
||||
global custom_object_client
|
||||
try:
|
||||
if kubeconfig_path:
|
||||
config.load_kube_config(kubeconfig_path)
|
||||
else:
|
||||
config.load_incluster_config()
|
||||
api_client = client.ApiClient()
|
||||
cli = client.CoreV1Api(api_client)
|
||||
batch_cli = client.BatchV1Api(api_client)
|
||||
custom_object_client = client.CustomObjectsApi(api_client)
|
||||
dyn_client = DynamicClient(api_client)
|
||||
watch_resource = watch.Watch()
|
||||
except ApiException as e:
|
||||
logging.error("Failed to initialize kubernetes client: %s\n" % e)
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
def get_host() -> str:
|
||||
"""Returns the Kubernetes server URL"""
|
||||
return client.configuration.Configuration.get_default_copy().host
|
||||
|
||||
|
||||
def get_clusterversion_string() -> str:
|
||||
"""
|
||||
Returns clusterversion status text on OpenShift, empty string
|
||||
on other distributions
|
||||
"""
|
||||
try:
|
||||
cvs = custom_object_client.list_cluster_custom_object(
|
||||
"config.openshift.io",
|
||||
"v1",
|
||||
"clusterversions",
|
||||
)
|
||||
for cv in cvs["items"]:
|
||||
for condition in cv["status"]["conditions"]:
|
||||
if condition["type"] == "Progressing":
|
||||
return condition["message"]
|
||||
return ""
|
||||
except client.exceptions.ApiException as e:
|
||||
if e.status == 404:
|
||||
return ""
|
||||
else:
|
||||
raise
|
||||
|
||||
|
||||
# List all namespaces
|
||||
def list_namespaces(label_selector=None):
|
||||
namespaces = []
|
||||
try:
|
||||
if label_selector:
|
||||
ret = cli.list_namespace(
|
||||
pretty=True,
|
||||
label_selector=label_selector
|
||||
)
|
||||
else:
|
||||
ret = cli.list_namespace(pretty=True)
|
||||
except ApiException as e:
|
||||
logging.error(
|
||||
"Exception when calling CoreV1Api->list_namespaced_pod: %s\n" % e
|
||||
)
|
||||
raise e
|
||||
for namespace in ret.items:
|
||||
namespaces.append(namespace.metadata.name)
|
||||
return namespaces
|
||||
|
||||
|
||||
def get_namespace_status(namespace_name):
|
||||
"""Get status of a given namespace"""
|
||||
ret = ""
|
||||
try:
|
||||
ret = cli.read_namespace_status(namespace_name)
|
||||
except ApiException as e:
|
||||
logging.error(
|
||||
"Exception when calling CoreV1Api->read_namespace_status: %s\n" % e
|
||||
)
|
||||
return ret.status.phase
|
||||
|
||||
|
||||
def delete_namespace(namespace):
|
||||
"""Deletes a given namespace using kubernetes python client"""
|
||||
try:
|
||||
api_response = cli.delete_namespace(namespace)
|
||||
logging.debug(
|
||||
"Namespace deleted. status='%s'" % str(api_response.status)
|
||||
)
|
||||
return api_response
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Exception when calling \
|
||||
CoreV1Api->delete_namespace: %s\n"
|
||||
% e
|
||||
)
|
||||
|
||||
|
||||
def check_namespaces(namespaces, label_selectors=None):
|
||||
"""Check if all the watch_namespaces are valid"""
|
||||
try:
|
||||
valid_namespaces = list_namespaces(label_selectors)
|
||||
regex_namespaces = set(namespaces) - set(valid_namespaces)
|
||||
final_namespaces = set(namespaces) - set(regex_namespaces)
|
||||
valid_regex = set()
|
||||
if regex_namespaces:
|
||||
for namespace in valid_namespaces:
|
||||
for regex_namespace in regex_namespaces:
|
||||
if re.search(regex_namespace, namespace):
|
||||
final_namespaces.add(namespace)
|
||||
valid_regex.add(regex_namespace)
|
||||
break
|
||||
invalid_namespaces = regex_namespaces - valid_regex
|
||||
if invalid_namespaces:
|
||||
raise Exception(
|
||||
"There exists no namespaces matching: %s" %
|
||||
(invalid_namespaces)
|
||||
)
|
||||
return list(final_namespaces)
|
||||
except Exception as e:
|
||||
logging.info("%s" % (e))
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
# List nodes in the cluster
|
||||
def list_nodes(label_selector=None):
|
||||
nodes = []
|
||||
try:
|
||||
if label_selector:
|
||||
ret = cli.list_node(pretty=True, label_selector=label_selector)
|
||||
else:
|
||||
ret = cli.list_node(pretty=True)
|
||||
except ApiException as e:
|
||||
logging.error("Exception when calling CoreV1Api->list_node: %s\n" % e)
|
||||
raise e
|
||||
for node in ret.items:
|
||||
nodes.append(node.metadata.name)
|
||||
return nodes
|
||||
|
||||
|
||||
# List nodes in the cluster that can be killed
|
||||
def list_killable_nodes(label_selector=None):
|
||||
nodes = []
|
||||
try:
|
||||
if label_selector:
|
||||
ret = cli.list_node(pretty=True, label_selector=label_selector)
|
||||
else:
|
||||
ret = cli.list_node(pretty=True)
|
||||
except ApiException as e:
|
||||
logging.error("Exception when calling CoreV1Api->list_node: %s\n" % e)
|
||||
raise e
|
||||
for node in ret.items:
|
||||
if kraken_node_name != node.metadata.name:
|
||||
for cond in node.status.conditions:
|
||||
if str(cond.type) == "Ready" and str(cond.status) == "True":
|
||||
nodes.append(node.metadata.name)
|
||||
return nodes
|
||||
|
||||
|
||||
# List managedclusters attached to the hub that can be killed
|
||||
def list_killable_managedclusters(label_selector=None):
|
||||
managedclusters = []
|
||||
try:
|
||||
ret = custom_object_client.list_cluster_custom_object(
|
||||
group="cluster.open-cluster-management.io",
|
||||
version="v1",
|
||||
plural="managedclusters",
|
||||
label_selector=label_selector
|
||||
)
|
||||
except ApiException as e:
|
||||
logging.error("Exception when calling CustomObjectsApi->list_cluster_custom_object: %s\n" % e)
|
||||
raise e
|
||||
for managedcluster in ret['items']:
|
||||
conditions = managedcluster['status']['conditions']
|
||||
available = list(filter(lambda condition: condition['reason'] == 'ManagedClusterAvailable', conditions))
|
||||
if available and available[0]['status'] == 'True':
|
||||
managedclusters.append(managedcluster['metadata']['name'])
|
||||
return managedclusters
|
||||
|
||||
# List pods in the given namespace
|
||||
def list_pods(namespace, label_selector=None):
|
||||
pods = []
|
||||
try:
|
||||
if label_selector:
|
||||
ret = cli.list_namespaced_pod(
|
||||
namespace,
|
||||
pretty=True,
|
||||
label_selector=label_selector
|
||||
)
|
||||
else:
|
||||
ret = cli.list_namespaced_pod(namespace, pretty=True)
|
||||
except ApiException as e:
|
||||
logging.error(
|
||||
"Exception when calling \
|
||||
CoreV1Api->list_namespaced_pod: %s\n"
|
||||
% e
|
||||
)
|
||||
raise e
|
||||
for pod in ret.items:
|
||||
pods.append(pod.metadata.name)
|
||||
return pods
|
||||
|
||||
|
||||
def get_all_pods(label_selector=None):
|
||||
pods = []
|
||||
if label_selector:
|
||||
ret = cli.list_pod_for_all_namespaces(
|
||||
pretty=True,
|
||||
label_selector=label_selector
|
||||
)
|
||||
else:
|
||||
ret = cli.list_pod_for_all_namespaces(pretty=True)
|
||||
for pod in ret.items:
|
||||
pods.append([pod.metadata.name, pod.metadata.namespace])
|
||||
return pods
|
||||
|
||||
|
||||
# Execute command in pod
|
||||
def exec_cmd_in_pod(
|
||||
command,
|
||||
pod_name,
|
||||
namespace,
|
||||
container=None,
|
||||
base_command="bash"
|
||||
):
|
||||
|
||||
exec_command = [base_command, "-c", command]
|
||||
try:
|
||||
if container:
|
||||
ret = stream(
|
||||
cli.connect_get_namespaced_pod_exec,
|
||||
pod_name,
|
||||
namespace,
|
||||
container=container,
|
||||
command=exec_command,
|
||||
stderr=True,
|
||||
stdin=False,
|
||||
stdout=True,
|
||||
tty=False,
|
||||
)
|
||||
else:
|
||||
ret = stream(
|
||||
cli.connect_get_namespaced_pod_exec,
|
||||
pod_name,
|
||||
namespace,
|
||||
command=exec_command,
|
||||
stderr=True,
|
||||
stdin=False,
|
||||
stdout=True,
|
||||
tty=False,
|
||||
)
|
||||
except Exception:
|
||||
return False
|
||||
return ret
|
||||
|
||||
|
||||
def delete_pod(name, namespace):
|
||||
try:
|
||||
cli.delete_namespaced_pod(name=name, namespace=namespace)
|
||||
while cli.read_namespaced_pod(name=name, namespace=namespace):
|
||||
time.sleep(1)
|
||||
except ApiException as e:
|
||||
if e.status == 404:
|
||||
logging.info("Pod already deleted")
|
||||
else:
|
||||
logging.error("Failed to delete pod %s" % e)
|
||||
raise e
|
||||
|
||||
|
||||
def create_pod(body, namespace, timeout=120):
|
||||
try:
|
||||
pod_stat = None
|
||||
pod_stat = cli.create_namespaced_pod(body=body, namespace=namespace)
|
||||
end_time = time.time() + timeout
|
||||
while True:
|
||||
pod_stat = cli.read_namespaced_pod(
|
||||
name=body["metadata"]["name"],
|
||||
namespace=namespace
|
||||
)
|
||||
if pod_stat.status.phase == "Running":
|
||||
break
|
||||
if time.time() > end_time:
|
||||
raise Exception("Starting pod failed")
|
||||
time.sleep(1)
|
||||
except Exception as e:
|
||||
logging.error("Pod creation failed %s" % e)
|
||||
if pod_stat:
|
||||
logging.error(pod_stat.status.container_statuses)
|
||||
delete_pod(body["metadata"]["name"], namespace)
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
def read_pod(name, namespace="default"):
|
||||
return cli.read_namespaced_pod(name=name, namespace=namespace)
|
||||
|
||||
|
||||
def get_pod_log(name, namespace="default"):
|
||||
return cli.read_namespaced_pod_log(
|
||||
name=name,
|
||||
namespace=namespace,
|
||||
_return_http_data_only=True,
|
||||
_preload_content=False
|
||||
)
|
||||
|
||||
|
||||
def get_containers_in_pod(pod_name, namespace):
|
||||
pod_info = cli.read_namespaced_pod(pod_name, namespace)
|
||||
container_names = []
|
||||
|
||||
for cont in pod_info.spec.containers:
|
||||
container_names.append(cont.name)
|
||||
return container_names
|
||||
|
||||
|
||||
def delete_job(name, namespace="default"):
|
||||
try:
|
||||
api_response = batch_cli.delete_namespaced_job(
|
||||
name=name,
|
||||
namespace=namespace,
|
||||
body=client.V1DeleteOptions(
|
||||
propagation_policy="Foreground",
|
||||
grace_period_seconds=0
|
||||
),
|
||||
)
|
||||
logging.debug("Job deleted. status='%s'" % str(api_response.status))
|
||||
return api_response
|
||||
except ApiException as api:
|
||||
logging.warn(
|
||||
"Exception when calling \
|
||||
BatchV1Api->create_namespaced_job: %s"
|
||||
% api
|
||||
)
|
||||
logging.warn("Job already deleted\n")
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Exception when calling \
|
||||
BatchV1Api->delete_namespaced_job: %s\n"
|
||||
% e
|
||||
)
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
def create_job(body, namespace="default"):
|
||||
try:
|
||||
api_response = batch_cli.create_namespaced_job(
|
||||
body=body,
|
||||
namespace=namespace
|
||||
)
|
||||
return api_response
|
||||
except ApiException as api:
|
||||
logging.warn(
|
||||
"Exception when calling \
|
||||
BatchV1Api->create_job: %s"
|
||||
% api
|
||||
)
|
||||
if api.status == 409:
|
||||
logging.warn("Job already present")
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Exception when calling \
|
||||
BatchV1Api->create_namespaced_job: %s"
|
||||
% e
|
||||
)
|
||||
raise
|
||||
|
||||
|
||||
def create_manifestwork(body, namespace):
|
||||
try:
|
||||
api_response = custom_object_client.create_namespaced_custom_object(
|
||||
group="work.open-cluster-management.io",
|
||||
version="v1",
|
||||
plural="manifestworks",
|
||||
body=body,
|
||||
namespace=namespace
|
||||
)
|
||||
return api_response
|
||||
except ApiException as e:
|
||||
print("Exception when calling CustomObjectsApi->create_namespaced_custom_object: %s\n" % e)
|
||||
|
||||
|
||||
def delete_manifestwork(namespace):
|
||||
try:
|
||||
api_response = custom_object_client.delete_namespaced_custom_object(
|
||||
group="work.open-cluster-management.io",
|
||||
version="v1",
|
||||
plural="manifestworks",
|
||||
name="managedcluster-scenarios-template",
|
||||
namespace=namespace
|
||||
)
|
||||
return api_response
|
||||
except ApiException as e:
|
||||
print("Exception when calling CustomObjectsApi->delete_namespaced_custom_object: %s\n" % e)
|
||||
|
||||
def get_job_status(name, namespace="default"):
|
||||
try:
|
||||
return batch_cli.read_namespaced_job_status(
|
||||
name=name,
|
||||
namespace=namespace
|
||||
)
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Exception when calling \
|
||||
BatchV1Api->read_namespaced_job_status: %s"
|
||||
% e
|
||||
)
|
||||
raise
|
||||
|
||||
|
||||
# Monitor the status of the cluster nodes and set the status to true or false
|
||||
def monitor_nodes():
|
||||
nodes = list_nodes()
|
||||
notready_nodes = []
|
||||
node_kerneldeadlock_status = "False"
|
||||
for node in nodes:
|
||||
try:
|
||||
node_info = cli.read_node_status(node, pretty=True)
|
||||
except ApiException as e:
|
||||
logging.error(
|
||||
"Exception when calling \
|
||||
CoreV1Api->read_node_status: %s\n"
|
||||
% e
|
||||
)
|
||||
raise e
|
||||
for condition in node_info.status.conditions:
|
||||
if condition.type == "KernelDeadlock":
|
||||
node_kerneldeadlock_status = condition.status
|
||||
elif condition.type == "Ready":
|
||||
node_ready_status = condition.status
|
||||
else:
|
||||
continue
|
||||
if node_kerneldeadlock_status != "False" or node_ready_status != "True": # noqa # noqa
|
||||
notready_nodes.append(node)
|
||||
if len(notready_nodes) != 0:
|
||||
status = False
|
||||
else:
|
||||
status = True
|
||||
return status, notready_nodes
|
||||
|
||||
|
||||
# Monitor the status of the pods in the specified namespace
|
||||
# and set the status to true or false
|
||||
def monitor_namespace(namespace):
|
||||
pods = list_pods(namespace)
|
||||
notready_pods = []
|
||||
for pod in pods:
|
||||
try:
|
||||
pod_info = cli.read_namespaced_pod_status(
|
||||
pod,
|
||||
namespace,
|
||||
pretty=True
|
||||
)
|
||||
except ApiException as e:
|
||||
logging.error(
|
||||
"Exception when calling \
|
||||
CoreV1Api->read_namespaced_pod_status: %s\n"
|
||||
% e
|
||||
)
|
||||
raise e
|
||||
pod_status = pod_info.status.phase
|
||||
if (
|
||||
pod_status != "Running" and
|
||||
pod_status != "Completed" and
|
||||
pod_status != "Succeeded"
|
||||
):
|
||||
notready_pods.append(pod)
|
||||
if len(notready_pods) != 0:
|
||||
status = False
|
||||
else:
|
||||
status = True
|
||||
return status, notready_pods
|
||||
|
||||
|
||||
# Monitor component namespace
|
||||
def monitor_component(iteration, component_namespace):
|
||||
watch_component_status, failed_component_pods = \
|
||||
monitor_namespace(component_namespace)
|
||||
logging.info(
|
||||
"Iteration %s: %s: %s" % (
|
||||
iteration,
|
||||
component_namespace,
|
||||
watch_component_status
|
||||
)
|
||||
)
|
||||
return watch_component_status, failed_component_pods
|
||||
|
||||
|
||||
def apply_yaml(path, namespace='default'):
|
||||
"""
|
||||
Apply yaml config to create Kubernetes resources
|
||||
|
||||
Args:
|
||||
path (string)
|
||||
- Path to the YAML file
|
||||
namespace (string)
|
||||
- Namespace to create the resource
|
||||
|
||||
Returns:
|
||||
The object created
|
||||
"""
|
||||
|
||||
return utils.create_from_yaml(
|
||||
api_client,
|
||||
yaml_file=path,
|
||||
namespace=namespace
|
||||
)
|
||||
|
||||
|
||||
def get_pod_info(name: str, namespace: str = 'default') -> Pod:
|
||||
"""
|
||||
Function to retrieve information about a specific pod
|
||||
in a given namespace. The kubectl command is given by:
|
||||
kubectl get pods <name> -n <namespace>
|
||||
|
||||
Args:
|
||||
name (string)
|
||||
- Name of the pod
|
||||
|
||||
namespace (string)
|
||||
- Namespace to look for the pod
|
||||
|
||||
Returns:
|
||||
- Data class object of type Pod with the output of the above
|
||||
kubectl command in the given format if the pod exists
|
||||
- Returns None if the pod doesn't exist
|
||||
"""
|
||||
pod_exists = check_if_pod_exists(name=name, namespace=namespace)
|
||||
if pod_exists:
|
||||
response = cli.read_namespaced_pod(
|
||||
name=name,
|
||||
namespace=namespace,
|
||||
pretty='true'
|
||||
)
|
||||
container_list = []
|
||||
|
||||
# Create a list of containers present in the pod
|
||||
for container in response.spec.containers:
|
||||
volume_mount_list = []
|
||||
for volume_mount in container.volume_mounts:
|
||||
volume_mount_list.append(
|
||||
VolumeMount(
|
||||
name=volume_mount.name,
|
||||
mountPath=volume_mount.mount_path
|
||||
)
|
||||
)
|
||||
container_list.append(
|
||||
Container(
|
||||
name=container.name,
|
||||
image=container.image,
|
||||
volumeMounts=volume_mount_list
|
||||
)
|
||||
)
|
||||
|
||||
for i, container in enumerate(response.status.container_statuses):
|
||||
container_list[i].ready = container.ready
|
||||
|
||||
# Create a list of volumes associated with the pod
|
||||
volume_list = []
|
||||
for volume in response.spec.volumes:
|
||||
volume_name = volume.name
|
||||
pvc_name = (
|
||||
volume.persistent_volume_claim.claim_name
|
||||
if volume.persistent_volume_claim is not None
|
||||
else None
|
||||
)
|
||||
volume_list.append(Volume(name=volume_name, pvcName=pvc_name))
|
||||
|
||||
# Create the Pod data class object
|
||||
pod_info = Pod(
|
||||
name=response.metadata.name,
|
||||
podIP=response.status.pod_ip,
|
||||
namespace=response.metadata.namespace,
|
||||
containers=container_list,
|
||||
nodeName=response.spec.node_name,
|
||||
volumes=volume_list
|
||||
)
|
||||
return pod_info
|
||||
else:
|
||||
logging.error(
|
||||
"Pod '%s' doesn't exist in namespace '%s'" % (
|
||||
str(name),
|
||||
str(namespace)
|
||||
)
|
||||
)
|
||||
return None
|
||||
|
||||
|
||||
def get_litmus_chaos_object(
|
||||
kind: str,
|
||||
name: str,
|
||||
namespace: str
|
||||
) -> LitmusChaosObject:
|
||||
"""
|
||||
Function that returns an object of a custom resource type of
|
||||
the litmus project. Currently, only ChaosEngine and ChaosResult
|
||||
objects are supported.
|
||||
|
||||
Args:
|
||||
kind (string)
|
||||
- The custom resource type
|
||||
|
||||
namespace (string)
|
||||
- Namespace where the custom object is present
|
||||
|
||||
Returns:
|
||||
Data class object of a subclass of LitmusChaosObject
|
||||
"""
|
||||
|
||||
group = 'litmuschaos.io'
|
||||
version = 'v1alpha1'
|
||||
|
||||
if kind.lower() == 'chaosengine':
|
||||
plural = 'chaosengines'
|
||||
response = custom_object_client.get_namespaced_custom_object(
|
||||
group=group,
|
||||
plural=plural,
|
||||
version=version,
|
||||
namespace=namespace,
|
||||
name=name
|
||||
)
|
||||
try:
|
||||
engine_status = response['status']['engineStatus']
|
||||
exp_status = response['status']['experiments'][0]['status']
|
||||
except Exception:
|
||||
engine_status = 'Not Initialized'
|
||||
exp_status = 'Not Initialized'
|
||||
custom_object = ChaosEngine(
|
||||
kind='ChaosEngine',
|
||||
group=group,
|
||||
namespace=namespace,
|
||||
name=name,
|
||||
plural=plural,
|
||||
version=version,
|
||||
engineStatus=engine_status,
|
||||
expStatus=exp_status
|
||||
)
|
||||
elif kind.lower() == 'chaosresult':
|
||||
plural = 'chaosresults'
|
||||
response = custom_object_client.get_namespaced_custom_object(
|
||||
group=group,
|
||||
plural=plural,
|
||||
version=version,
|
||||
namespace=namespace,
|
||||
name=name
|
||||
)
|
||||
try:
|
||||
verdict = response['status']['experimentStatus']['verdict']
|
||||
fail_step = response['status']['experimentStatus']['failStep']
|
||||
except Exception:
|
||||
verdict = 'N/A'
|
||||
fail_step = 'N/A'
|
||||
custom_object = ChaosResult(
|
||||
kind='ChaosResult',
|
||||
group=group,
|
||||
namespace=namespace,
|
||||
name=name,
|
||||
plural=plural,
|
||||
version=version,
|
||||
verdict=verdict,
|
||||
failStep=fail_step
|
||||
)
|
||||
else:
|
||||
logging.error("Invalid litmus chaos custom resource name")
|
||||
custom_object = None
|
||||
return custom_object
|
||||
|
||||
|
||||
def check_if_namespace_exists(name: str) -> bool:
|
||||
"""
|
||||
Function that checks if a namespace exists by parsing through
|
||||
the list of projects.
|
||||
Args:
|
||||
name (string)
|
||||
- Namespace name
|
||||
|
||||
Returns:
|
||||
Boolean value indicating whether the namespace exists or not
|
||||
"""
|
||||
|
||||
v1_projects = dyn_client.resources.get(
|
||||
api_version='project.openshift.io/v1',
|
||||
kind='Project'
|
||||
)
|
||||
project_list = v1_projects.get()
|
||||
return True if name in str(project_list) else False
|
||||
|
||||
|
||||
def check_if_pod_exists(name: str, namespace: str) -> bool:
|
||||
"""
|
||||
Function that checks if a pod exists in the given namespace
|
||||
Args:
|
||||
name (string)
|
||||
- Pod name
|
||||
|
||||
namespace (string)
|
||||
- Namespace name
|
||||
|
||||
Returns:
|
||||
Boolean value indicating whether the pod exists or not
|
||||
"""
|
||||
|
||||
namespace_exists = check_if_namespace_exists(namespace)
|
||||
if namespace_exists:
|
||||
pod_list = list_pods(namespace=namespace)
|
||||
if name in pod_list:
|
||||
return True
|
||||
else:
|
||||
logging.error("Namespace '%s' doesn't exist" % str(namespace))
|
||||
return False
|
||||
|
||||
|
||||
def check_if_pvc_exists(name: str, namespace: str) -> bool:
|
||||
"""
|
||||
Function that checks if a namespace exists by parsing through
|
||||
the list of projects.
|
||||
Args:
|
||||
name (string)
|
||||
- PVC name
|
||||
|
||||
namespace (string)
|
||||
- Namespace name
|
||||
|
||||
Returns:
|
||||
Boolean value indicating whether the Persistent Volume Claim
|
||||
exists or not.
|
||||
"""
|
||||
namespace_exists = check_if_namespace_exists(namespace)
|
||||
if namespace_exists:
|
||||
response = cli.list_namespaced_persistent_volume_claim(
|
||||
namespace=namespace
|
||||
)
|
||||
pvc_list = [pvc.metadata.name for pvc in response.items]
|
||||
if name in pvc_list:
|
||||
return True
|
||||
else:
|
||||
logging.error("Namespace '%s' doesn't exist" % str(namespace))
|
||||
return False
|
||||
|
||||
|
||||
def get_pvc_info(name: str, namespace: str) -> PVC:
|
||||
"""
|
||||
Function to retrieve information about a Persistent Volume Claim in a
|
||||
given namespace
|
||||
|
||||
Args:
|
||||
name (string)
|
||||
- Name of the persistent volume claim
|
||||
|
||||
namespace (string)
|
||||
- Namespace where the persistent volume claim is present
|
||||
|
||||
Returns:
|
||||
- A PVC data class containing the name, capacity, volume name,
|
||||
namespace and associated pod names of the PVC if the PVC exists
|
||||
- Returns None if the PVC doesn't exist
|
||||
"""
|
||||
|
||||
pvc_exists = check_if_pvc_exists(name=name, namespace=namespace)
|
||||
if pvc_exists:
|
||||
pvc_info_response = cli.read_namespaced_persistent_volume_claim(
|
||||
name=name,
|
||||
namespace=namespace,
|
||||
pretty=True
|
||||
)
|
||||
pod_list_response = cli.list_namespaced_pod(namespace=namespace)
|
||||
|
||||
capacity = pvc_info_response.status.capacity['storage']
|
||||
volume_name = pvc_info_response.spec.volume_name
|
||||
|
||||
# Loop through all pods in the namespace to find associated PVCs
|
||||
pvc_pod_list = []
|
||||
for pod in pod_list_response.items:
|
||||
for volume in pod.spec.volumes:
|
||||
if (
|
||||
volume.persistent_volume_claim is not None
|
||||
and volume.persistent_volume_claim.claim_name == name
|
||||
):
|
||||
pvc_pod_list.append(pod.metadata.name)
|
||||
|
||||
pvc_info = PVC(
|
||||
name=name,
|
||||
capacity=capacity,
|
||||
volumeName=volume_name,
|
||||
podNames=pvc_pod_list,
|
||||
namespace=namespace
|
||||
)
|
||||
return pvc_info
|
||||
else:
|
||||
logging.error(
|
||||
"PVC '%s' doesn't exist in namespace '%s'" % (
|
||||
str(name),
|
||||
str(namespace)
|
||||
)
|
||||
)
|
||||
return None
|
||||
|
||||
|
||||
# Find the node kraken is deployed on
|
||||
# Set global kraken node to not delete
|
||||
def find_kraken_node():
|
||||
pods = get_all_pods()
|
||||
kraken_pod_name = None
|
||||
for pod in pods:
|
||||
if "kraken-deployment" in pod[0]:
|
||||
kraken_pod_name = pod[0]
|
||||
kraken_project = pod[1]
|
||||
break
|
||||
# have to switch to proper project
|
||||
|
||||
if kraken_pod_name:
|
||||
# get kraken-deployment pod, find node name
|
||||
try:
|
||||
node_name = get_pod_info(kraken_pod_name, kraken_project).nodeName
|
||||
global kraken_node_name
|
||||
kraken_node_name = node_name
|
||||
except Exception as e:
|
||||
logging.info("%s" % (e))
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
# Watch for a specific node status
|
||||
def watch_node_status(node, status, timeout, resource_version):
|
||||
count = timeout
|
||||
for event in watch_resource.stream(
|
||||
cli.list_node,
|
||||
field_selector=f"metadata.name={node}",
|
||||
timeout_seconds=timeout,
|
||||
resource_version=f"{resource_version}"
|
||||
):
|
||||
conditions = [
|
||||
status
|
||||
for status in event["object"].status.conditions
|
||||
if status.type == "Ready"
|
||||
]
|
||||
if conditions[0].status == status:
|
||||
watch_resource.stop()
|
||||
break
|
||||
else:
|
||||
count -= 1
|
||||
logging.info(
|
||||
"Status of node " + node + ": " + str(conditions[0].status)
|
||||
)
|
||||
if not count:
|
||||
watch_resource.stop()
|
||||
|
||||
|
||||
# Watch for a specific managedcluster status
|
||||
# TODO: Implement this with a watcher instead of polling
|
||||
def watch_managedcluster_status(managedcluster, status, timeout):
|
||||
elapsed_time = 0
|
||||
while True:
|
||||
conditions = custom_object_client.get_cluster_custom_object_status(
|
||||
"cluster.open-cluster-management.io", "v1", "managedclusters", managedcluster
|
||||
)['status']['conditions']
|
||||
available = list(filter(lambda condition: condition['reason'] == 'ManagedClusterAvailable', conditions))
|
||||
if status == "True":
|
||||
if available and available[0]['status'] == "True":
|
||||
logging.info("Status of managedcluster " + managedcluster + ": Available")
|
||||
return True
|
||||
else:
|
||||
if not available:
|
||||
logging.info("Status of managedcluster " + managedcluster + ": Unavailable")
|
||||
return True
|
||||
time.sleep(2)
|
||||
elapsed_time += 2
|
||||
if elapsed_time >= timeout:
|
||||
logging.info("Timeout waiting for managedcluster " + managedcluster + " to become: " + status)
|
||||
return False
|
||||
|
||||
|
||||
# Get the resource version for the specified node
|
||||
def get_node_resource_version(node):
|
||||
return cli.read_node(name=node).metadata.resource_version
|
||||
@@ -1,74 +0,0 @@
|
||||
from dataclasses import dataclass
|
||||
from typing import List
|
||||
|
||||
|
||||
@dataclass(frozen=True, order=False)
|
||||
class Volume:
|
||||
"""Data class to hold information regarding volumes in a pod"""
|
||||
name: str
|
||||
pvcName: str
|
||||
|
||||
|
||||
@dataclass(order=False)
|
||||
class VolumeMount:
|
||||
"""Data class to hold information regarding volume mounts"""
|
||||
name: str
|
||||
mountPath: str
|
||||
|
||||
|
||||
@dataclass(frozen=True, order=False)
|
||||
class PVC:
|
||||
"""Data class to hold information regarding persistent volume claims"""
|
||||
name: str
|
||||
capacity: str
|
||||
volumeName: str
|
||||
podNames: List[str]
|
||||
namespace: str
|
||||
|
||||
|
||||
@dataclass(order=False)
|
||||
class Container:
|
||||
"""Data class to hold information regarding containers in a pod"""
|
||||
image: str
|
||||
name: str
|
||||
volumeMounts: List[VolumeMount]
|
||||
ready: bool = False
|
||||
|
||||
|
||||
@dataclass(frozen=True, order=False)
|
||||
class Pod:
|
||||
"""Data class to hold information regarding a pod"""
|
||||
name: str
|
||||
podIP: str
|
||||
namespace: str
|
||||
containers: List[Container]
|
||||
nodeName: str
|
||||
volumes: List[Volume]
|
||||
|
||||
|
||||
@dataclass(frozen=True, order=False)
|
||||
class LitmusChaosObject:
|
||||
"""Data class to hold information regarding a custom object of litmus project"""
|
||||
kind: str
|
||||
group: str
|
||||
namespace: str
|
||||
name: str
|
||||
plural: str
|
||||
version: str
|
||||
|
||||
|
||||
@dataclass(frozen=True, order=False)
|
||||
class ChaosEngine(LitmusChaosObject):
|
||||
"""Data class to hold information regarding a ChaosEngine object"""
|
||||
engineStatus: str
|
||||
expStatus: str
|
||||
|
||||
|
||||
@dataclass(frozen=True, order=False)
|
||||
class ChaosResult(LitmusChaosObject):
|
||||
"""Data class to hold information regarding a ChaosResult object"""
|
||||
verdict: str
|
||||
failStep: str
|
||||
|
||||
|
||||
|
||||
@@ -1,68 +0,0 @@
|
||||
apiVersion: work.open-cluster-management.io/v1
|
||||
kind: ManifestWork
|
||||
metadata:
|
||||
namespace: {{managedcluster_name}}
|
||||
name: managedcluster-scenarios-template
|
||||
spec:
|
||||
workload:
|
||||
manifests:
|
||||
- apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: ClusterRole
|
||||
metadata:
|
||||
name: scale-deploy
|
||||
namespace: open-cluster-management
|
||||
rules:
|
||||
- apiGroups: ["apps"]
|
||||
resources: ["deployments/scale"]
|
||||
verbs: ["patch"]
|
||||
- apiGroups: ["apps"]
|
||||
resources: ["deployments"]
|
||||
verbs: ["get"]
|
||||
- apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: RoleBinding
|
||||
metadata:
|
||||
name: scale-deploy-to-sa
|
||||
namespace: open-cluster-management
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: internal-kubectl
|
||||
namespace: open-cluster-management
|
||||
roleRef:
|
||||
kind: ClusterRole
|
||||
name: scale-deploy
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
- apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: RoleBinding
|
||||
metadata:
|
||||
name: scale-deploy-to-sa
|
||||
namespace: open-cluster-management-agent
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: internal-kubectl
|
||||
namespace: open-cluster-management
|
||||
roleRef:
|
||||
kind: ClusterRole
|
||||
name: scale-deploy
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
- apiVersion: v1
|
||||
kind: ServiceAccount
|
||||
metadata:
|
||||
name: internal-kubectl
|
||||
namespace: open-cluster-management
|
||||
- apiVersion: batch/v1
|
||||
kind: Job
|
||||
metadata:
|
||||
name: managedcluster-scenarios-template
|
||||
namespace: open-cluster-management
|
||||
spec:
|
||||
template:
|
||||
spec:
|
||||
serviceAccountName: internal-kubectl
|
||||
containers:
|
||||
- name: kubectl
|
||||
image: quay.io/sighup/kubectl-kustomize:1.21.6_3.9.1
|
||||
command: ["/bin/sh", "-c"]
|
||||
args:
|
||||
- {{args}}
|
||||
restartPolicy: Never
|
||||
backoffLimit: 0
|
||||
@@ -1,78 +0,0 @@
|
||||
import yaml
|
||||
import logging
|
||||
import time
|
||||
from kraken.managedcluster_scenarios.managedcluster_scenarios import managedcluster_scenarios
|
||||
import kraken.managedcluster_scenarios.common_managedcluster_functions as common_managedcluster_functions
|
||||
import kraken.cerberus.setup as cerberus
|
||||
from krkn_lib.k8s import KrknKubernetes
|
||||
from krkn_lib.utils.functions import get_yaml_item_value
|
||||
|
||||
# Get the managedcluster scenarios object of specfied cloud type
|
||||
# krkn_lib
|
||||
def get_managedcluster_scenario_object(managedcluster_scenario, kubecli: KrknKubernetes):
|
||||
return managedcluster_scenarios(kubecli)
|
||||
|
||||
# Run defined scenarios
|
||||
# krkn_lib
|
||||
def run(scenarios_list, config, wait_duration, kubecli: KrknKubernetes):
|
||||
for managedcluster_scenario_config in scenarios_list:
|
||||
with open(managedcluster_scenario_config, "r") as f:
|
||||
managedcluster_scenario_config = yaml.full_load(f)
|
||||
for managedcluster_scenario in managedcluster_scenario_config["managedcluster_scenarios"]:
|
||||
managedcluster_scenario_object = get_managedcluster_scenario_object(managedcluster_scenario, kubecli)
|
||||
if managedcluster_scenario["actions"]:
|
||||
for action in managedcluster_scenario["actions"]:
|
||||
start_time = int(time.time())
|
||||
inject_managedcluster_scenario(action, managedcluster_scenario, managedcluster_scenario_object, kubecli)
|
||||
logging.info("Waiting for the specified duration: %s" % (wait_duration))
|
||||
time.sleep(wait_duration)
|
||||
end_time = int(time.time())
|
||||
cerberus.get_status(config, start_time, end_time)
|
||||
logging.info("")
|
||||
|
||||
|
||||
# Inject the specified managedcluster scenario
|
||||
# krkn_lib
|
||||
def inject_managedcluster_scenario(action, managedcluster_scenario, managedcluster_scenario_object, kubecli: KrknKubernetes):
|
||||
# Get the managedcluster scenario configurations
|
||||
run_kill_count = get_yaml_item_value(
|
||||
managedcluster_scenario, "runs", 1
|
||||
)
|
||||
instance_kill_count = get_yaml_item_value(
|
||||
managedcluster_scenario, "instance_count", 1
|
||||
)
|
||||
managedcluster_name = get_yaml_item_value(
|
||||
managedcluster_scenario, "managedcluster_name", ""
|
||||
)
|
||||
label_selector = get_yaml_item_value(
|
||||
managedcluster_scenario, "label_selector", ""
|
||||
)
|
||||
timeout = get_yaml_item_value(managedcluster_scenario, "timeout", 120)
|
||||
# Get the managedcluster to apply the scenario
|
||||
if managedcluster_name:
|
||||
managedcluster_name_list = managedcluster_name.split(",")
|
||||
else:
|
||||
managedcluster_name_list = [managedcluster_name]
|
||||
for single_managedcluster_name in managedcluster_name_list:
|
||||
managedclusters = common_managedcluster_functions.get_managedcluster(single_managedcluster_name, label_selector, instance_kill_count, kubecli)
|
||||
for single_managedcluster in managedclusters:
|
||||
if action == "managedcluster_start_scenario":
|
||||
managedcluster_scenario_object.managedcluster_start_scenario(run_kill_count, single_managedcluster, timeout)
|
||||
elif action == "managedcluster_stop_scenario":
|
||||
managedcluster_scenario_object.managedcluster_stop_scenario(run_kill_count, single_managedcluster, timeout)
|
||||
elif action == "managedcluster_stop_start_scenario":
|
||||
managedcluster_scenario_object.managedcluster_stop_start_scenario(run_kill_count, single_managedcluster, timeout)
|
||||
elif action == "managedcluster_termination_scenario":
|
||||
managedcluster_scenario_object.managedcluster_termination_scenario(run_kill_count, single_managedcluster, timeout)
|
||||
elif action == "managedcluster_reboot_scenario":
|
||||
managedcluster_scenario_object.managedcluster_reboot_scenario(run_kill_count, single_managedcluster, timeout)
|
||||
elif action == "stop_start_klusterlet_scenario":
|
||||
managedcluster_scenario_object.stop_start_klusterlet_scenario(run_kill_count, single_managedcluster, timeout)
|
||||
elif action == "start_klusterlet_scenario":
|
||||
managedcluster_scenario_object.stop_klusterlet_scenario(run_kill_count, single_managedcluster, timeout)
|
||||
elif action == "stop_klusterlet_scenario":
|
||||
managedcluster_scenario_object.stop_klusterlet_scenario(run_kill_count, single_managedcluster, timeout)
|
||||
elif action == "managedcluster_crash_scenario":
|
||||
managedcluster_scenario_object.managedcluster_crash_scenario(run_kill_count, single_managedcluster, timeout)
|
||||
else:
|
||||
logging.info("There is no managedcluster action that matches %s, skipping scenario" % action)
|
||||
@@ -1,210 +0,0 @@
|
||||
import yaml
|
||||
import logging
|
||||
import time
|
||||
import os
|
||||
import random
|
||||
import kraken.cerberus.setup as cerberus
|
||||
import kraken.node_actions.common_node_functions as common_node_functions
|
||||
from jinja2 import Environment, FileSystemLoader
|
||||
from krkn_lib.k8s import KrknKubernetes
|
||||
from krkn_lib.telemetry.k8s import KrknTelemetryKubernetes
|
||||
from krkn_lib.models.telemetry import ScenarioTelemetry
|
||||
from krkn_lib.utils.functions import get_yaml_item_value, log_exception
|
||||
|
||||
|
||||
# krkn_lib
|
||||
# Reads the scenario config and introduces traffic variations in Node's host network interface.
|
||||
def run(scenarios_list, config, wait_duration, kubecli: KrknKubernetes, telemetry: KrknTelemetryKubernetes) -> (list[str], list[ScenarioTelemetry]):
|
||||
failed_post_scenarios = ""
|
||||
logging.info("Runing the Network Chaos tests")
|
||||
failed_post_scenarios = ""
|
||||
scenario_telemetries: list[ScenarioTelemetry] = []
|
||||
failed_scenarios = []
|
||||
for net_config in scenarios_list:
|
||||
scenario_telemetry = ScenarioTelemetry()
|
||||
scenario_telemetry.scenario = net_config
|
||||
scenario_telemetry.startTimeStamp = time.time()
|
||||
telemetry.set_parameters_base64(scenario_telemetry, net_config)
|
||||
try:
|
||||
with open(net_config, "r") as file:
|
||||
param_lst = ["latency", "loss", "bandwidth"]
|
||||
test_config = yaml.safe_load(file)
|
||||
test_dict = test_config["network_chaos"]
|
||||
test_duration = int(
|
||||
get_yaml_item_value(test_dict, "duration", 300)
|
||||
)
|
||||
test_interface = get_yaml_item_value(
|
||||
test_dict, "interfaces", []
|
||||
)
|
||||
test_node = get_yaml_item_value(test_dict, "node_name", "")
|
||||
test_node_label = get_yaml_item_value(
|
||||
test_dict, "label_selector",
|
||||
"node-role.kubernetes.io/master"
|
||||
)
|
||||
test_execution = get_yaml_item_value(
|
||||
test_dict, "execution", "serial"
|
||||
)
|
||||
test_instance_count = get_yaml_item_value(
|
||||
test_dict, "instance_count", 1
|
||||
)
|
||||
test_egress = get_yaml_item_value(
|
||||
test_dict, "egress", {"bandwidth": "100mbit"}
|
||||
)
|
||||
if test_node:
|
||||
node_name_list = test_node.split(",")
|
||||
else:
|
||||
node_name_list = [test_node]
|
||||
nodelst = []
|
||||
for single_node_name in node_name_list:
|
||||
nodelst.extend(common_node_functions.get_node(single_node_name, test_node_label, test_instance_count, kubecli))
|
||||
file_loader = FileSystemLoader(os.path.abspath(os.path.dirname(__file__)))
|
||||
env = Environment(loader=file_loader, autoescape=True)
|
||||
pod_template = env.get_template("pod.j2")
|
||||
test_interface = verify_interface(test_interface, nodelst, pod_template, kubecli)
|
||||
joblst = []
|
||||
egress_lst = [i for i in param_lst if i in test_egress]
|
||||
chaos_config = {
|
||||
"network_chaos": {
|
||||
"duration": test_duration,
|
||||
"interfaces": test_interface,
|
||||
"node_name": ",".join(nodelst),
|
||||
"execution": test_execution,
|
||||
"instance_count": test_instance_count,
|
||||
"egress": test_egress,
|
||||
}
|
||||
}
|
||||
logging.info("Executing network chaos with config \n %s" % yaml.dump(chaos_config))
|
||||
job_template = env.get_template("job.j2")
|
||||
try:
|
||||
for i in egress_lst:
|
||||
for node in nodelst:
|
||||
exec_cmd = get_egress_cmd(
|
||||
test_execution, test_interface, i, test_dict["egress"], duration=test_duration
|
||||
)
|
||||
logging.info("Executing %s on node %s" % (exec_cmd, node))
|
||||
job_body = yaml.safe_load(
|
||||
job_template.render(jobname=i + str(hash(node))[:5], nodename=node, cmd=exec_cmd)
|
||||
)
|
||||
joblst.append(job_body["metadata"]["name"])
|
||||
api_response = kubecli.create_job(job_body)
|
||||
if api_response is None:
|
||||
raise Exception("Error creating job")
|
||||
if test_execution == "serial":
|
||||
logging.info("Waiting for serial job to finish")
|
||||
start_time = int(time.time())
|
||||
wait_for_job(joblst[:], kubecli, test_duration + 300)
|
||||
logging.info("Waiting for wait_duration %s" % wait_duration)
|
||||
time.sleep(wait_duration)
|
||||
end_time = int(time.time())
|
||||
cerberus.publish_kraken_status(config, failed_post_scenarios, start_time, end_time)
|
||||
if test_execution == "parallel":
|
||||
break
|
||||
if test_execution == "parallel":
|
||||
logging.info("Waiting for parallel job to finish")
|
||||
start_time = int(time.time())
|
||||
wait_for_job(joblst[:], kubecli, test_duration + 300)
|
||||
logging.info("Waiting for wait_duration %s" % wait_duration)
|
||||
time.sleep(wait_duration)
|
||||
end_time = int(time.time())
|
||||
cerberus.publish_kraken_status(config, failed_post_scenarios, start_time, end_time)
|
||||
except Exception as e:
|
||||
logging.error("Network Chaos exiting due to Exception %s" % e)
|
||||
raise RuntimeError()
|
||||
finally:
|
||||
logging.info("Deleting jobs")
|
||||
delete_job(joblst[:], kubecli)
|
||||
except (RuntimeError, Exception):
|
||||
scenario_telemetry.exitStatus = 1
|
||||
failed_scenarios.append(net_config)
|
||||
log_exception(net_config)
|
||||
else:
|
||||
scenario_telemetry.exitStatus = 0
|
||||
scenario_telemetries.append(scenario_telemetry)
|
||||
return failed_scenarios, scenario_telemetries
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def verify_interface(test_interface, nodelst, template, kubecli: KrknKubernetes):
|
||||
pod_index = random.randint(0, len(nodelst) - 1)
|
||||
pod_body = yaml.safe_load(template.render(nodename=nodelst[pod_index]))
|
||||
logging.info("Creating pod to query interface on node %s" % nodelst[pod_index])
|
||||
kubecli.create_pod(pod_body, "default", 300)
|
||||
try:
|
||||
if test_interface == []:
|
||||
cmd = "ip r | grep default | awk '/default/ {print $5}'"
|
||||
output = kubecli.exec_cmd_in_pod(cmd, "fedtools", "default")
|
||||
test_interface = [output.replace("\n", "")]
|
||||
else:
|
||||
cmd = "ip -br addr show|awk -v ORS=',' '{print $1}'"
|
||||
output = kubecli.exec_cmd_in_pod(cmd, "fedtools", "default")
|
||||
interface_lst = output[:-1].split(",")
|
||||
for interface in test_interface:
|
||||
if interface not in interface_lst:
|
||||
logging.error("Interface %s not found in node %s interface list %s" % (interface, nodelst[pod_index], interface_lst))
|
||||
#sys.exit(1)
|
||||
raise RuntimeError()
|
||||
return test_interface
|
||||
finally:
|
||||
logging.info("Deleteing pod to query interface on node")
|
||||
kubecli.delete_pod("fedtools", "default")
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def get_job_pods(api_response, kubecli: KrknKubernetes):
|
||||
controllerUid = api_response.metadata.labels["controller-uid"]
|
||||
pod_label_selector = "controller-uid=" + controllerUid
|
||||
pods_list = kubecli.list_pods(label_selector=pod_label_selector, namespace="default")
|
||||
return pods_list[0]
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def wait_for_job(joblst, kubecli: KrknKubernetes, timeout=300):
|
||||
waittime = time.time() + timeout
|
||||
count = 0
|
||||
joblen = len(joblst)
|
||||
while count != joblen:
|
||||
for jobname in joblst:
|
||||
try:
|
||||
api_response = kubecli.get_job_status(jobname, namespace="default")
|
||||
if api_response.status.succeeded is not None or api_response.status.failed is not None:
|
||||
count += 1
|
||||
joblst.remove(jobname)
|
||||
except Exception:
|
||||
logging.warning("Exception in getting job status")
|
||||
if time.time() > waittime:
|
||||
raise Exception("Starting pod failed")
|
||||
time.sleep(5)
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def delete_job(joblst, kubecli: KrknKubernetes):
|
||||
for jobname in joblst:
|
||||
try:
|
||||
api_response = kubecli.get_job_status(jobname, namespace="default")
|
||||
if api_response.status.failed is not None:
|
||||
pod_name = get_job_pods(api_response, kubecli)
|
||||
pod_stat = kubecli.read_pod(name=pod_name, namespace="default")
|
||||
logging.error(pod_stat.status.container_statuses)
|
||||
pod_log_response = kubecli.get_pod_log(name=pod_name, namespace="default")
|
||||
pod_log = pod_log_response.data.decode("utf-8")
|
||||
logging.error(pod_log)
|
||||
except Exception:
|
||||
logging.warning("Exception in getting job status")
|
||||
kubecli.delete_job(name=jobname, namespace="default")
|
||||
|
||||
|
||||
def get_egress_cmd(execution, test_interface, mod, vallst, duration=30):
|
||||
tc_set = tc_unset = tc_ls = ""
|
||||
param_map = {"latency": "delay", "loss": "loss", "bandwidth": "rate"}
|
||||
for i in test_interface:
|
||||
tc_set = "{0} tc qdisc add dev {1} root netem".format(tc_set, i)
|
||||
tc_unset = "{0} tc qdisc del dev {1} root ;".format(tc_unset, i)
|
||||
tc_ls = "{0} tc qdisc ls dev {1} ;".format(tc_ls, i)
|
||||
if execution == "parallel":
|
||||
for val in vallst.keys():
|
||||
tc_set += " {0} {1} ".format(param_map[val], vallst[val])
|
||||
tc_set += ";"
|
||||
else:
|
||||
tc_set += " {0} {1} ;".format(param_map[mod], vallst[mod])
|
||||
exec_cmd = "{0} {1} sleep {2};{3} sleep 20;{4}".format(tc_set, tc_ls, duration, tc_unset, tc_ls)
|
||||
return exec_cmd
|
||||
@@ -1,235 +0,0 @@
|
||||
import sys
|
||||
import time
|
||||
import logging
|
||||
import kraken.node_actions.common_node_functions as nodeaction
|
||||
from kraken.node_actions.abstract_node_scenarios import abstract_node_scenarios
|
||||
from googleapiclient import discovery
|
||||
from oauth2client.client import GoogleCredentials
|
||||
import kraken.invoke.command as runcommand
|
||||
from krkn_lib.k8s import KrknKubernetes
|
||||
|
||||
class GCP:
|
||||
def __init__(self):
|
||||
|
||||
self.project = runcommand.invoke("gcloud config get-value project").split("/n")[0].strip()
|
||||
logging.info("project " + str(self.project) + "!")
|
||||
credentials = GoogleCredentials.get_application_default()
|
||||
self.client = discovery.build("compute", "v1", credentials=credentials, cache_discovery=False)
|
||||
|
||||
# Get the instance ID of the node
|
||||
def get_instance_id(self, node):
|
||||
zone_request = self.client.zones().list(project=self.project)
|
||||
while zone_request is not None:
|
||||
zone_response = zone_request.execute()
|
||||
for zone in zone_response["items"]:
|
||||
instances_request = self.client.instances().list(project=self.project, zone=zone["name"])
|
||||
while instances_request is not None:
|
||||
instance_response = instances_request.execute()
|
||||
if "items" in instance_response.keys():
|
||||
for instance in instance_response["items"]:
|
||||
if instance["name"] in node:
|
||||
return instance["name"], zone["name"]
|
||||
instances_request = self.client.zones().list_next(
|
||||
previous_request=instances_request, previous_response=instance_response
|
||||
)
|
||||
zone_request = self.client.zones().list_next(previous_request=zone_request, previous_response=zone_response)
|
||||
logging.info("no instances ")
|
||||
|
||||
# Start the node instance
|
||||
def start_instances(self, zone, instance_id):
|
||||
try:
|
||||
self.client.instances().start(project=self.project, zone=zone, instance=instance_id).execute()
|
||||
logging.info("vm name " + str(instance_id) + " started")
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Failed to start node instance %s. Encountered following " "exception: %s." % (instance_id, e)
|
||||
)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
# Stop the node instance
|
||||
def stop_instances(self, zone, instance_id):
|
||||
try:
|
||||
self.client.instances().stop(project=self.project, zone=zone, instance=instance_id).execute()
|
||||
logging.info("vm name " + str(instance_id) + " stopped")
|
||||
except Exception as e:
|
||||
logging.error("Failed to stop node instance %s. Encountered following " "exception: %s." % (instance_id, e))
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
# Start the node instance
|
||||
def suspend_instances(self, zone, instance_id):
|
||||
try:
|
||||
self.client.instances().suspend(project=self.project, zone=zone, instance=instance_id).execute()
|
||||
logging.info("vm name " + str(instance_id) + " suspended")
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Failed to suspend node instance %s. Encountered following " "exception: %s." % (instance_id, e)
|
||||
)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
# Terminate the node instance
|
||||
def terminate_instances(self, zone, instance_id):
|
||||
try:
|
||||
self.client.instances().delete(project=self.project, zone=zone, instance=instance_id).execute()
|
||||
logging.info("vm name " + str(instance_id) + " terminated")
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Failed to start node instance %s. Encountered following " "exception: %s." % (instance_id, e)
|
||||
)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
# Reboot the node instance
|
||||
def reboot_instances(self, zone, instance_id):
|
||||
try:
|
||||
self.client.instances().reset(project=self.project, zone=zone, instance=instance_id).execute()
|
||||
logging.info("vm name " + str(instance_id) + " rebooted")
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Failed to start node instance %s. Encountered following " "exception: %s." % (instance_id, e)
|
||||
)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
# Get instance status
|
||||
def get_instance_status(self, zone, instance_id, expected_status, timeout):
|
||||
# statuses: PROVISIONING, STAGING, RUNNING, STOPPING, SUSPENDING, SUSPENDED, REPAIRING,
|
||||
# and TERMINATED.
|
||||
i = 0
|
||||
sleeper = 5
|
||||
while i <= timeout:
|
||||
instStatus = self.client.instances().get(project=self.project, zone=zone, instance=instance_id).execute()
|
||||
logging.info("Status of vm " + str(instStatus["status"]))
|
||||
if instStatus["status"] == expected_status:
|
||||
return True
|
||||
time.sleep(sleeper)
|
||||
i += sleeper
|
||||
logging.error("Status of %s was not %s in %s seconds" % (instance_id, expected_status, timeout))
|
||||
return False
|
||||
|
||||
# Wait until the node instance is suspended
|
||||
def wait_until_suspended(self, zone, instance_id, timeout):
|
||||
return self.get_instance_status(zone, instance_id, "SUSPENDED", timeout)
|
||||
|
||||
# Wait until the node instance is running
|
||||
def wait_until_running(self, zone, instance_id, timeout):
|
||||
return self.get_instance_status(zone, instance_id, "RUNNING", timeout)
|
||||
|
||||
# Wait until the node instance is stopped
|
||||
def wait_until_stopped(self, zone, instance_id, timeout):
|
||||
return self.get_instance_status(zone, instance_id, "TERMINATED", timeout)
|
||||
|
||||
# Wait until the node instance is terminated
|
||||
def wait_until_terminated(self, zone, instance_id, timeout):
|
||||
try:
|
||||
i = 0
|
||||
sleeper = 5
|
||||
while i <= timeout:
|
||||
instStatus = (
|
||||
self.client.instances().get(project=self.project, zone=zone, instance=instance_id).execute()
|
||||
)
|
||||
logging.info("Status of vm " + str(instStatus["status"]))
|
||||
time.sleep(sleeper)
|
||||
except Exception as e:
|
||||
logging.info("here " + str(e))
|
||||
return True
|
||||
|
||||
|
||||
# krkn_lib
|
||||
class gcp_node_scenarios(abstract_node_scenarios):
|
||||
def __init__(self, kubecli: KrknKubernetes):
|
||||
super().__init__(kubecli)
|
||||
self.gcp = GCP()
|
||||
|
||||
# Node scenario to start the node
|
||||
def node_start_scenario(self, instance_kill_count, node, timeout):
|
||||
for _ in range(instance_kill_count):
|
||||
try:
|
||||
logging.info("Starting node_start_scenario injection")
|
||||
instance_id, zone = self.gcp.get_instance_id(node)
|
||||
logging.info("Starting the node %s with instance ID: %s " % (node, instance_id))
|
||||
self.gcp.start_instances(zone, instance_id)
|
||||
self.gcp.wait_until_running(zone, instance_id, timeout)
|
||||
nodeaction.wait_for_ready_status(node, timeout, self.kubecli)
|
||||
logging.info("Node with instance ID: %s is in running state" % instance_id)
|
||||
logging.info("node_start_scenario has been successfully injected!")
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Failed to start node instance. Encountered following " "exception: %s. Test Failed" % (e)
|
||||
)
|
||||
logging.error("node_start_scenario injection failed!")
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
# Node scenario to stop the node
|
||||
def node_stop_scenario(self, instance_kill_count, node, timeout):
|
||||
logging.info("stop scenario")
|
||||
for _ in range(instance_kill_count):
|
||||
try:
|
||||
logging.info("Starting node_stop_scenario injection")
|
||||
instance_id, zone = self.gcp.get_instance_id(node)
|
||||
logging.info("Stopping the node %s with instance ID: %s " % (node, instance_id))
|
||||
self.gcp.stop_instances(zone, instance_id)
|
||||
self.gcp.wait_until_stopped(zone, instance_id, timeout)
|
||||
logging.info("Node with instance ID: %s is in stopped state" % instance_id)
|
||||
nodeaction.wait_for_unknown_status(node, timeout, self.kubecli)
|
||||
except Exception as e:
|
||||
logging.error("Failed to stop node instance. Encountered following exception: %s. " "Test Failed" % (e))
|
||||
logging.error("node_stop_scenario injection failed!")
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
# Node scenario to terminate the node
|
||||
def node_termination_scenario(self, instance_kill_count, node, timeout):
|
||||
for _ in range(instance_kill_count):
|
||||
try:
|
||||
logging.info("Starting node_termination_scenario injection")
|
||||
instance_id, zone = self.gcp.get_instance_id(node)
|
||||
logging.info("Terminating the node %s with instance ID: %s " % (node, instance_id))
|
||||
self.gcp.terminate_instances(zone, instance_id)
|
||||
self.gcp.wait_until_terminated(zone, instance_id, timeout)
|
||||
for _ in range(timeout):
|
||||
if node not in self.kubecli.list_nodes():
|
||||
break
|
||||
time.sleep(1)
|
||||
if node in self.kubecli.list_nodes():
|
||||
raise Exception("Node could not be terminated")
|
||||
logging.info("Node with instance ID: %s has been terminated" % instance_id)
|
||||
logging.info("node_termination_scenario has been successfuly injected!")
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Failed to terminate node instance. Encountered following exception:" " %s. Test Failed" % e
|
||||
)
|
||||
logging.error("node_termination_scenario injection failed!")
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
# Node scenario to reboot the node
|
||||
def node_reboot_scenario(self, instance_kill_count, node, timeout):
|
||||
for _ in range(instance_kill_count):
|
||||
try:
|
||||
logging.info("Starting node_reboot_scenario injection")
|
||||
instance_id, zone = self.gcp.get_instance_id(node)
|
||||
logging.info("Rebooting the node %s with instance ID: %s " % (node, instance_id))
|
||||
self.gcp.reboot_instances(zone, instance_id)
|
||||
nodeaction.wait_for_ready_status(node, timeout, self.kubecli)
|
||||
logging.info("Node with instance ID: %s has been rebooted" % instance_id)
|
||||
logging.info("node_reboot_scenario has been successfuly injected!")
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Failed to reboot node instance. Encountered following exception:" " %s. Test Failed" % (e)
|
||||
)
|
||||
logging.error("node_reboot_scenario injection failed!")
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
@@ -1,152 +0,0 @@
|
||||
import yaml
|
||||
import logging
|
||||
import sys
|
||||
import time
|
||||
from kraken.node_actions.aws_node_scenarios import aws_node_scenarios
|
||||
from kraken.node_actions.general_cloud_node_scenarios import general_node_scenarios
|
||||
from kraken.node_actions.az_node_scenarios import azure_node_scenarios
|
||||
from kraken.node_actions.gcp_node_scenarios import gcp_node_scenarios
|
||||
from kraken.node_actions.openstack_node_scenarios import openstack_node_scenarios
|
||||
from kraken.node_actions.alibaba_node_scenarios import alibaba_node_scenarios
|
||||
from kraken.node_actions.bm_node_scenarios import bm_node_scenarios
|
||||
from kraken.node_actions.docker_node_scenarios import docker_node_scenarios
|
||||
import kraken.node_actions.common_node_functions as common_node_functions
|
||||
import kraken.cerberus.setup as cerberus
|
||||
from krkn_lib.k8s import KrknKubernetes
|
||||
from krkn_lib.telemetry.k8s import KrknTelemetryKubernetes
|
||||
from krkn_lib.models.telemetry import ScenarioTelemetry
|
||||
from krkn_lib.utils.functions import get_yaml_item_value
|
||||
|
||||
node_general = False
|
||||
|
||||
|
||||
# Get the node scenarios object of specfied cloud type
|
||||
# krkn_lib
|
||||
def get_node_scenario_object(node_scenario, kubecli: KrknKubernetes):
|
||||
if "cloud_type" not in node_scenario.keys() or node_scenario["cloud_type"] == "generic":
|
||||
global node_general
|
||||
node_general = True
|
||||
return general_node_scenarios(kubecli)
|
||||
if node_scenario["cloud_type"] == "aws":
|
||||
return aws_node_scenarios(kubecli)
|
||||
elif node_scenario["cloud_type"] == "gcp":
|
||||
return gcp_node_scenarios(kubecli)
|
||||
elif node_scenario["cloud_type"] == "openstack":
|
||||
return openstack_node_scenarios(kubecli)
|
||||
elif node_scenario["cloud_type"] == "azure" or node_scenario["cloud_type"] == "az":
|
||||
return azure_node_scenarios(kubecli)
|
||||
elif node_scenario["cloud_type"] == "alibaba" or node_scenario["cloud_type"] == "alicloud":
|
||||
return alibaba_node_scenarios(kubecli)
|
||||
elif node_scenario["cloud_type"] == "bm":
|
||||
return bm_node_scenarios(
|
||||
node_scenario.get("bmc_info"), node_scenario.get("bmc_user", None), node_scenario.get("bmc_password", None),
|
||||
kubecli
|
||||
)
|
||||
elif node_scenario["cloud_type"] == "docker":
|
||||
return docker_node_scenarios(kubecli)
|
||||
else:
|
||||
logging.error(
|
||||
"Cloud type " + node_scenario["cloud_type"] + " is not currently supported; "
|
||||
"try using 'generic' if wanting to stop/start kubelet or fork bomb on any "
|
||||
"cluster"
|
||||
)
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
# Run defined scenarios
|
||||
# krkn_lib
|
||||
def run(scenarios_list, config, wait_duration, kubecli: KrknKubernetes, telemetry: KrknTelemetryKubernetes) -> (list[str], list[ScenarioTelemetry]):
|
||||
scenario_telemetries: list[ScenarioTelemetry] = []
|
||||
failed_scenarios = []
|
||||
for node_scenario_config in scenarios_list:
|
||||
scenario_telemetry = ScenarioTelemetry()
|
||||
scenario_telemetry.scenario = node_scenario_config
|
||||
scenario_telemetry.startTimeStamp = time.time()
|
||||
telemetry.set_parameters_base64(scenario_telemetry, node_scenario_config)
|
||||
with open(node_scenario_config, "r") as f:
|
||||
node_scenario_config = yaml.full_load(f)
|
||||
for node_scenario in node_scenario_config["node_scenarios"]:
|
||||
node_scenario_object = get_node_scenario_object(node_scenario, kubecli)
|
||||
if node_scenario["actions"]:
|
||||
for action in node_scenario["actions"]:
|
||||
start_time = int(time.time())
|
||||
try:
|
||||
inject_node_scenario(action, node_scenario, node_scenario_object, kubecli)
|
||||
logging.info("Waiting for the specified duration: %s" % (wait_duration))
|
||||
time.sleep(wait_duration)
|
||||
end_time = int(time.time())
|
||||
cerberus.get_status(config, start_time, end_time)
|
||||
logging.info("")
|
||||
except (RuntimeError, Exception) as e:
|
||||
scenario_telemetry.exitStatus = 1
|
||||
failed_scenarios.append(node_scenario_config)
|
||||
log_exception(node_scenario_config)
|
||||
else:
|
||||
scenario_telemetry.exitStatus = 0
|
||||
|
||||
scenario_telemetry.endTimeStamp = time.time()
|
||||
scenario_telemetries.append(scenario_telemetry)
|
||||
|
||||
return failed_scenarios, scenario_telemetries
|
||||
|
||||
|
||||
# Inject the specified node scenario
|
||||
def inject_node_scenario(action, node_scenario, node_scenario_object, kubecli: KrknKubernetes):
|
||||
generic_cloud_scenarios = ("stop_kubelet_scenario", "node_crash_scenario")
|
||||
# Get the node scenario configurations
|
||||
run_kill_count = get_yaml_item_value(node_scenario, "runs", 1)
|
||||
instance_kill_count = get_yaml_item_value(
|
||||
node_scenario, "instance_count", 1
|
||||
)
|
||||
node_name = get_yaml_item_value(node_scenario, "node_name", "")
|
||||
label_selector = get_yaml_item_value(node_scenario, "label_selector", "")
|
||||
timeout = get_yaml_item_value(node_scenario, "timeout", 120)
|
||||
service = get_yaml_item_value(node_scenario, "service", "")
|
||||
ssh_private_key = get_yaml_item_value(
|
||||
node_scenario, "ssh_private_key", "~/.ssh/id_rsa"
|
||||
)
|
||||
# Get the node to apply the scenario
|
||||
if node_name:
|
||||
node_name_list = node_name.split(",")
|
||||
else:
|
||||
node_name_list = [node_name]
|
||||
for single_node_name in node_name_list:
|
||||
nodes = common_node_functions.get_node(single_node_name, label_selector, instance_kill_count, kubecli)
|
||||
for single_node in nodes:
|
||||
if node_general and action not in generic_cloud_scenarios:
|
||||
logging.info("Scenario: " + action + " is not set up for generic cloud type, skipping action")
|
||||
else:
|
||||
if action == "node_start_scenario":
|
||||
node_scenario_object.node_start_scenario(run_kill_count, single_node, timeout)
|
||||
elif action == "node_stop_scenario":
|
||||
node_scenario_object.node_stop_scenario(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)
|
||||
elif action == "node_termination_scenario":
|
||||
node_scenario_object.node_termination_scenario(run_kill_count, single_node, timeout)
|
||||
elif action == "node_reboot_scenario":
|
||||
node_scenario_object.node_reboot_scenario(run_kill_count, single_node, timeout)
|
||||
elif action == "stop_start_kubelet_scenario":
|
||||
node_scenario_object.stop_start_kubelet_scenario(run_kill_count, single_node, timeout)
|
||||
elif action == "stop_kubelet_scenario":
|
||||
node_scenario_object.stop_kubelet_scenario(run_kill_count, single_node, timeout)
|
||||
elif action == "node_crash_scenario":
|
||||
node_scenario_object.node_crash_scenario(run_kill_count, single_node, timeout)
|
||||
elif action == "stop_start_helper_node_scenario":
|
||||
if node_scenario["cloud_type"] != "openstack":
|
||||
logging.error(
|
||||
"Scenario: " + action + " is not supported for "
|
||||
"cloud type " + node_scenario["cloud_type"] + ", skipping action"
|
||||
)
|
||||
else:
|
||||
if not node_scenario["helper_node_ip"]:
|
||||
logging.error("Helper node IP address is not provided")
|
||||
sys.exit(1)
|
||||
node_scenario_object.helper_node_stop_start_scenario(
|
||||
run_kill_count, node_scenario["helper_node_ip"], timeout
|
||||
)
|
||||
node_scenario_object.helper_node_service_status(
|
||||
node_scenario["helper_node_ip"], service, ssh_private_key, timeout
|
||||
)
|
||||
else:
|
||||
logging.info("There is no node action that matches %s, skipping scenario" % action)
|
||||
@@ -1,259 +0,0 @@
|
||||
import dataclasses
|
||||
import json
|
||||
import logging
|
||||
from os.path import abspath
|
||||
from typing import List, Dict
|
||||
import time
|
||||
|
||||
from arcaflow_plugin_sdk import schema, serialization, jsonschema
|
||||
from arcaflow_plugin_kill_pod import kill_pods, wait_for_pods
|
||||
import kraken.plugins.node_scenarios.vmware_plugin as vmware_plugin
|
||||
import kraken.plugins.node_scenarios.ibmcloud_plugin as ibmcloud_plugin
|
||||
from kraken.plugins.run_python_plugin import run_python_file
|
||||
from kraken.plugins.network.ingress_shaping import network_chaos
|
||||
from kraken.plugins.pod_network_outage.pod_network_outage_plugin import pod_outage
|
||||
from kraken.plugins.pod_network_outage.pod_network_outage_plugin import pod_egress_shaping
|
||||
from krkn_lib.telemetry.k8s import KrknTelemetryKubernetes
|
||||
from kraken.plugins.pod_network_outage.pod_network_outage_plugin import pod_ingress_shaping
|
||||
from krkn_lib.models.telemetry import ScenarioTelemetry
|
||||
from krkn_lib.utils.functions import log_exception
|
||||
|
||||
|
||||
@dataclasses.dataclass
|
||||
class PluginStep:
|
||||
schema: schema.StepSchema
|
||||
error_output_ids: List[str]
|
||||
|
||||
def render_output(self, output_id: str, output_data) -> str:
|
||||
return json.dumps({
|
||||
"output_id": output_id,
|
||||
"output_data": self.schema.outputs[output_id].serialize(output_data),
|
||||
}, indent='\t')
|
||||
|
||||
|
||||
class Plugins:
|
||||
"""
|
||||
Plugins is a class that can run plugins sequentially. The output is rendered to the standard output and the process
|
||||
is aborted if a step fails.
|
||||
"""
|
||||
steps_by_id: Dict[str, PluginStep]
|
||||
|
||||
def __init__(self, steps: List[PluginStep]):
|
||||
self.steps_by_id = dict()
|
||||
for step in steps:
|
||||
if step.schema.id in self.steps_by_id:
|
||||
raise Exception(
|
||||
"Duplicate step ID: {}".format(step.schema.id)
|
||||
)
|
||||
self.steps_by_id[step.schema.id] = step
|
||||
|
||||
def run(self, file: str, kubeconfig_path: str, kraken_config: str):
|
||||
"""
|
||||
Run executes a series of steps
|
||||
"""
|
||||
data = serialization.load_from_file(abspath(file))
|
||||
if not isinstance(data, list):
|
||||
raise Exception(
|
||||
"Invalid scenario configuration file: {} expected list, found {}".format(file, type(data).__name__)
|
||||
)
|
||||
i = 0
|
||||
for entry in data:
|
||||
if not isinstance(entry, dict):
|
||||
raise Exception(
|
||||
"Invalid scenario configuration file: {} expected a list of dict's, found {} on step {}".format(
|
||||
file,
|
||||
type(entry).__name__,
|
||||
i
|
||||
)
|
||||
)
|
||||
if "id" not in entry:
|
||||
raise Exception(
|
||||
"Invalid scenario configuration file: {} missing 'id' field on step {}".format(
|
||||
file,
|
||||
i,
|
||||
)
|
||||
)
|
||||
if "config" not in entry:
|
||||
raise Exception(
|
||||
"Invalid scenario configuration file: {} missing 'config' field on step {}".format(
|
||||
file,
|
||||
i,
|
||||
)
|
||||
)
|
||||
|
||||
if entry["id"] not in self.steps_by_id:
|
||||
raise Exception(
|
||||
"Invalid step {} in {} ID: {} expected one of: {}".format(
|
||||
i,
|
||||
file,
|
||||
entry["id"],
|
||||
', '.join(self.steps_by_id.keys())
|
||||
)
|
||||
)
|
||||
step = self.steps_by_id[entry["id"]]
|
||||
unserialized_input = step.schema.input.unserialize(entry["config"])
|
||||
if "kubeconfig_path" in step.schema.input.properties:
|
||||
unserialized_input.kubeconfig_path = kubeconfig_path
|
||||
if "kraken_config" in step.schema.input.properties:
|
||||
unserialized_input.kraken_config = kraken_config
|
||||
output_id, output_data = step.schema(unserialized_input)
|
||||
logging.info(step.render_output(output_id, output_data) + "\n")
|
||||
if output_id in step.error_output_ids:
|
||||
raise Exception(
|
||||
"Step {} in {} ({}) failed".format(i, file, step.schema.id)
|
||||
)
|
||||
i = i + 1
|
||||
|
||||
def json_schema(self):
|
||||
"""
|
||||
This function generates a JSON schema document and renders it from the steps passed.
|
||||
"""
|
||||
result = {
|
||||
"$id": "https://github.com/redhat-chaos/krkn/",
|
||||
"$schema": "https://json-schema.org/draft/2020-12/schema",
|
||||
"title": "Kraken Arcaflow scenarios",
|
||||
"description": "Serial execution of Arcaflow Python plugins. See https://github.com/arcaflow for details.",
|
||||
"type": "array",
|
||||
"minContains": 1,
|
||||
"items": {
|
||||
"oneOf": [
|
||||
|
||||
]
|
||||
}
|
||||
}
|
||||
for step_id in self.steps_by_id.keys():
|
||||
step = self.steps_by_id[step_id]
|
||||
step_input = jsonschema.step_input(step.schema)
|
||||
del step_input["$id"]
|
||||
del step_input["$schema"]
|
||||
del step_input["title"]
|
||||
del step_input["description"]
|
||||
result["items"]["oneOf"].append({
|
||||
"type": "object",
|
||||
"properties": {
|
||||
"id": {
|
||||
"type": "string",
|
||||
"const": step_id,
|
||||
},
|
||||
"config": step_input,
|
||||
},
|
||||
"required": [
|
||||
"id",
|
||||
"config",
|
||||
]
|
||||
})
|
||||
return json.dumps(result, indent="\t")
|
||||
|
||||
|
||||
PLUGINS = Plugins(
|
||||
[
|
||||
PluginStep(
|
||||
kill_pods,
|
||||
[
|
||||
"error",
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
wait_for_pods,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
run_python_file,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
vmware_plugin.node_start,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
vmware_plugin.node_stop,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
vmware_plugin.node_reboot,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
vmware_plugin.node_terminate,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
ibmcloud_plugin.node_start,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
ibmcloud_plugin.node_stop,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
ibmcloud_plugin.node_reboot,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
ibmcloud_plugin.node_terminate,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
pod_outage,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
pod_egress_shaping,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
),
|
||||
PluginStep(
|
||||
pod_ingress_shaping,
|
||||
[
|
||||
"error"
|
||||
]
|
||||
)
|
||||
]
|
||||
)
|
||||
|
||||
|
||||
def run(scenarios: List[str], kubeconfig_path: str, kraken_config: str, failed_post_scenarios: List[str], wait_duration: int, telemetry: KrknTelemetryKubernetes) -> (List[str], list[ScenarioTelemetry]):
|
||||
scenario_telemetries: list[ScenarioTelemetry] = []
|
||||
for scenario in scenarios:
|
||||
scenario_telemetry = ScenarioTelemetry()
|
||||
scenario_telemetry.scenario = scenario
|
||||
scenario_telemetry.startTimeStamp = time.time()
|
||||
telemetry.set_parameters_base64(scenario_telemetry, scenario)
|
||||
logging.info('scenario ' + str(scenario))
|
||||
try:
|
||||
PLUGINS.run(scenario, kubeconfig_path, kraken_config)
|
||||
except Exception as e:
|
||||
scenario_telemetry.exitStatus = 1
|
||||
failed_post_scenarios.append(scenario)
|
||||
log_exception(scenario)
|
||||
else:
|
||||
scenario_telemetry.exitStatus = 0
|
||||
logging.info("Waiting for the specified duration: %s" % (wait_duration))
|
||||
time.sleep(wait_duration)
|
||||
scenario_telemetries.append(scenario_telemetry)
|
||||
scenario_telemetry.endTimeStamp = time.time()
|
||||
|
||||
return failed_post_scenarios, scenario_telemetries
|
||||
@@ -1,4 +0,0 @@
|
||||
from kraken.plugins import PLUGINS
|
||||
|
||||
if __name__ == "__main__":
|
||||
print(PLUGINS.json_schema())
|
||||
@@ -1,246 +0,0 @@
|
||||
import logging
|
||||
import time
|
||||
import yaml
|
||||
import sys
|
||||
import random
|
||||
import arcaflow_plugin_kill_pod
|
||||
import kraken.cerberus.setup as cerberus
|
||||
import kraken.post_actions.actions as post_actions
|
||||
from krkn_lib.k8s import KrknKubernetes
|
||||
from krkn_lib.telemetry.k8s import KrknTelemetryKubernetes
|
||||
from krkn_lib.models.telemetry import ScenarioTelemetry
|
||||
from arcaflow_plugin_sdk import serialization
|
||||
from krkn_lib.utils.functions import get_yaml_item_value, log_exception
|
||||
|
||||
|
||||
# Run pod based scenarios
|
||||
def run(kubeconfig_path, scenarios_list, config, failed_post_scenarios, wait_duration):
|
||||
# Loop to run the scenarios starts here
|
||||
for pod_scenario in scenarios_list:
|
||||
if len(pod_scenario) > 1:
|
||||
pre_action_output = post_actions.run(kubeconfig_path, pod_scenario[1])
|
||||
else:
|
||||
pre_action_output = ""
|
||||
try:
|
||||
# capture start time
|
||||
start_time = int(time.time())
|
||||
|
||||
input = serialization.load_from_file(pod_scenario)
|
||||
|
||||
s = arcaflow_plugin_kill_pod.get_schema()
|
||||
input_data: arcaflow_plugin_kill_pod.KillPodConfig = s.unserialize_input("pod", input)
|
||||
|
||||
if kubeconfig_path is not None:
|
||||
input_data.kubeconfig_path = kubeconfig_path
|
||||
|
||||
output_id, output_data = s.call_step("pod", input_data)
|
||||
|
||||
if output_id == "error":
|
||||
data: arcaflow_plugin_kill_pod.PodErrorOutput = output_data
|
||||
logging.error("Failed to run pod scenario: {}".format(data.error))
|
||||
else:
|
||||
data: arcaflow_plugin_kill_pod.PodSuccessOutput = output_data
|
||||
for pod in data.pods:
|
||||
print("Deleted pod {} in namespace {}\n".format(pod.pod_name, pod.pod_namespace))
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Failed to run scenario: %s. Encountered the following " "exception: %s" % (pod_scenario[0], e)
|
||||
)
|
||||
sys.exit(1)
|
||||
|
||||
logging.info("Scenario: %s has been successfully injected!" % (pod_scenario[0]))
|
||||
logging.info("Waiting for the specified duration: %s" % (wait_duration))
|
||||
time.sleep(wait_duration)
|
||||
|
||||
try:
|
||||
failed_post_scenarios = post_actions.check_recovery(
|
||||
kubeconfig_path, pod_scenario, failed_post_scenarios, pre_action_output
|
||||
)
|
||||
except Exception as e:
|
||||
logging.error("Failed to run post action checks: %s" % e)
|
||||
sys.exit(1)
|
||||
|
||||
# capture end time
|
||||
end_time = int(time.time())
|
||||
|
||||
# publish cerberus status
|
||||
cerberus.publish_kraken_status(config, failed_post_scenarios, start_time, end_time)
|
||||
return failed_post_scenarios
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def container_run(kubeconfig_path,
|
||||
scenarios_list,
|
||||
config,
|
||||
failed_post_scenarios,
|
||||
wait_duration,
|
||||
kubecli: KrknKubernetes,
|
||||
telemetry: KrknTelemetryKubernetes) -> (list[str], list[ScenarioTelemetry]):
|
||||
|
||||
failed_scenarios = []
|
||||
scenario_telemetries: list[ScenarioTelemetry] = []
|
||||
|
||||
for container_scenario_config in scenarios_list:
|
||||
scenario_telemetry = ScenarioTelemetry()
|
||||
scenario_telemetry.scenario = container_scenario_config[0]
|
||||
scenario_telemetry.startTimeStamp = time.time()
|
||||
telemetry.set_parameters_base64(scenario_telemetry, container_scenario_config[0])
|
||||
if len(container_scenario_config) > 1:
|
||||
pre_action_output = post_actions.run(kubeconfig_path, container_scenario_config[1])
|
||||
else:
|
||||
pre_action_output = ""
|
||||
with open(container_scenario_config[0], "r") as f:
|
||||
cont_scenario_config = yaml.full_load(f)
|
||||
for cont_scenario in cont_scenario_config["scenarios"]:
|
||||
# capture start time
|
||||
start_time = int(time.time())
|
||||
try:
|
||||
killed_containers = container_killing_in_pod(cont_scenario, kubecli)
|
||||
if len(container_scenario_config) > 1:
|
||||
failed_post_scenarios = post_actions.check_recovery(
|
||||
kubeconfig_path,
|
||||
container_scenario_config,
|
||||
failed_post_scenarios,
|
||||
pre_action_output
|
||||
)
|
||||
else:
|
||||
failed_post_scenarios = check_failed_containers(
|
||||
killed_containers, cont_scenario.get("retry_wait", 120), kubecli
|
||||
)
|
||||
|
||||
logging.info("Waiting for the specified duration: %s" % (wait_duration))
|
||||
time.sleep(wait_duration)
|
||||
|
||||
# capture end time
|
||||
end_time = int(time.time())
|
||||
|
||||
# publish cerberus status
|
||||
cerberus.publish_kraken_status(config, failed_post_scenarios, start_time, end_time)
|
||||
except (RuntimeError, Exception):
|
||||
failed_scenarios.append(container_scenario_config[0])
|
||||
log_exception(container_scenario_config[0])
|
||||
scenario_telemetry.exitStatus = 1
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
else:
|
||||
scenario_telemetry.exitStatus = 0
|
||||
scenario_telemetry.endTimeStamp = time.time()
|
||||
scenario_telemetries.append(scenario_telemetry)
|
||||
|
||||
return failed_scenarios, scenario_telemetries
|
||||
|
||||
|
||||
def container_killing_in_pod(cont_scenario, kubecli: KrknKubernetes):
|
||||
scenario_name = get_yaml_item_value(cont_scenario, "name", "")
|
||||
namespace = get_yaml_item_value(cont_scenario, "namespace", "*")
|
||||
label_selector = get_yaml_item_value(cont_scenario, "label_selector", None)
|
||||
pod_names = get_yaml_item_value(cont_scenario, "pod_names", [])
|
||||
container_name = get_yaml_item_value(cont_scenario, "container_name", "")
|
||||
kill_action = get_yaml_item_value(cont_scenario, "action", 1)
|
||||
kill_count = get_yaml_item_value(cont_scenario, "count", 1)
|
||||
if not isinstance(kill_action, int):
|
||||
logging.error("Please make sure the action parameter defined in the "
|
||||
"config is an integer")
|
||||
raise RuntimeError()
|
||||
if (kill_action < 1) or (kill_action > 15):
|
||||
logging.error("Only 1-15 kill signals are supported.")
|
||||
raise RuntimeError()
|
||||
kill_action = "kill " + str(kill_action)
|
||||
if type(pod_names) != list:
|
||||
logging.error("Please make sure your pod_names are in a list format")
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
if len(pod_names) == 0:
|
||||
if namespace == "*":
|
||||
# returns double array of pod name and namespace
|
||||
pods = kubecli.get_all_pods(label_selector)
|
||||
else:
|
||||
# Only returns pod names
|
||||
pods = kubecli.list_pods(namespace, label_selector)
|
||||
else:
|
||||
if namespace == "*":
|
||||
logging.error("You must specify the namespace to kill a container in a specific pod")
|
||||
logging.error("Scenario " + scenario_name + " failed")
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
pods = pod_names
|
||||
# get container and pod name
|
||||
container_pod_list = []
|
||||
for pod in pods:
|
||||
if type(pod) == list:
|
||||
pod_output = kubecli.get_pod_info(pod[0], pod[1])
|
||||
container_names = [container.name for container in pod_output.containers]
|
||||
|
||||
container_pod_list.append([pod[0], pod[1], container_names])
|
||||
else:
|
||||
pod_output = kubecli.get_pod_info(pod, namespace)
|
||||
container_names = [container.name for container in pod_output.containers]
|
||||
container_pod_list.append([pod, namespace, container_names])
|
||||
|
||||
killed_count = 0
|
||||
killed_container_list = []
|
||||
while killed_count < kill_count:
|
||||
if len(container_pod_list) == 0:
|
||||
logging.error("Trying to kill more containers than were found, try lowering kill count")
|
||||
logging.error("Scenario " + scenario_name + " failed")
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
selected_container_pod = container_pod_list[random.randint(0, len(container_pod_list) - 1)]
|
||||
for c_name in selected_container_pod[2]:
|
||||
if container_name != "":
|
||||
if c_name == container_name:
|
||||
killed_container_list.append([selected_container_pod[0], selected_container_pod[1], c_name])
|
||||
retry_container_killing(kill_action, selected_container_pod[0], selected_container_pod[1], c_name, kubecli)
|
||||
break
|
||||
else:
|
||||
killed_container_list.append([selected_container_pod[0], selected_container_pod[1], c_name])
|
||||
retry_container_killing(kill_action, selected_container_pod[0], selected_container_pod[1], c_name, kubecli)
|
||||
break
|
||||
container_pod_list.remove(selected_container_pod)
|
||||
killed_count += 1
|
||||
logging.info("Scenario " + scenario_name + " successfully injected")
|
||||
return killed_container_list
|
||||
|
||||
|
||||
def retry_container_killing(kill_action, podname, namespace, container_name, kubecli: KrknKubernetes):
|
||||
i = 0
|
||||
while i < 5:
|
||||
logging.info("Killing container %s in pod %s (ns %s)" % (str(container_name), str(podname), str(namespace)))
|
||||
response = kubecli.exec_cmd_in_pod(kill_action, podname, namespace, container_name)
|
||||
i += 1
|
||||
# Blank response means it is done
|
||||
if not response:
|
||||
break
|
||||
elif "unauthorized" in response.lower() or "authorization" in response.lower():
|
||||
time.sleep(2)
|
||||
continue
|
||||
else:
|
||||
logging.warning(response)
|
||||
continue
|
||||
|
||||
|
||||
def check_failed_containers(killed_container_list, wait_time, kubecli: KrknKubernetes):
|
||||
|
||||
container_ready = []
|
||||
timer = 0
|
||||
while timer <= wait_time:
|
||||
for killed_container in killed_container_list:
|
||||
# pod namespace contain name
|
||||
pod_output = kubecli.get_pod_info(killed_container[0], killed_container[1])
|
||||
|
||||
for container in pod_output.containers:
|
||||
if container.name == killed_container[2]:
|
||||
if container.ready:
|
||||
container_ready.append(killed_container)
|
||||
if len(container_ready) != 0:
|
||||
for item in container_ready:
|
||||
killed_container_list = killed_container_list.remove(item)
|
||||
if killed_container_list is None or len(killed_container_list) == 0:
|
||||
return []
|
||||
timer += 5
|
||||
logging.info("Waiting 5 seconds for containers to become ready")
|
||||
time.sleep(5)
|
||||
return killed_container_list
|
||||
@@ -1,48 +0,0 @@
|
||||
import logging
|
||||
import kraken.invoke.command as runcommand
|
||||
|
||||
|
||||
def run(kubeconfig_path, scenario, pre_action_output=""):
|
||||
|
||||
if scenario.endswith(".yaml") or scenario.endswith(".yml"):
|
||||
logging.error("Powerfulseal support has recently been removed. Please switch to using plugins instead.")
|
||||
elif scenario.endswith(".py"):
|
||||
action_output = runcommand.invoke("python3 " + scenario).strip()
|
||||
if pre_action_output:
|
||||
if pre_action_output == action_output:
|
||||
logging.info(scenario + " post action checks passed")
|
||||
else:
|
||||
logging.info(scenario + " post action response did not match pre check output")
|
||||
logging.info("Pre action output: " + str(pre_action_output) + "\n")
|
||||
logging.info("Post action output: " + str(action_output))
|
||||
return False
|
||||
elif scenario != "":
|
||||
# invoke custom bash script
|
||||
action_output = runcommand.invoke(scenario).strip()
|
||||
if pre_action_output:
|
||||
if pre_action_output == action_output:
|
||||
logging.info(scenario + " post action checks passed")
|
||||
else:
|
||||
logging.info(scenario + " post action response did not match pre check output")
|
||||
return False
|
||||
|
||||
return action_output
|
||||
|
||||
|
||||
# Perform the post scenario actions to see if components recovered
|
||||
def check_recovery(kubeconfig_path, scenario, failed_post_scenarios, pre_action_output):
|
||||
if failed_post_scenarios:
|
||||
for failed_scenario in failed_post_scenarios:
|
||||
post_action_output = run(kubeconfig_path, failed_scenario[0], failed_scenario[1])
|
||||
if post_action_output is not False:
|
||||
failed_post_scenarios.remove(failed_scenario)
|
||||
else:
|
||||
logging.info("Post action scenario " + str(failed_scenario) + "is still failing")
|
||||
|
||||
# check post actions
|
||||
if len(scenario) > 1:
|
||||
post_action_output = run(kubeconfig_path, scenario[1], pre_action_output)
|
||||
if post_action_output is False:
|
||||
failed_post_scenarios.append([scenario[1], pre_action_output])
|
||||
|
||||
return failed_post_scenarios
|
||||
@@ -1,30 +0,0 @@
|
||||
import datetime
|
||||
import os.path
|
||||
import urllib3
|
||||
import logging
|
||||
import sys
|
||||
|
||||
import yaml
|
||||
from krkn_lib.prometheus.krkn_prometheus import KrknPrometheus
|
||||
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
|
||||
def alerts(prom_cli: KrknPrometheus, start_time, end_time, alert_profile):
|
||||
|
||||
if alert_profile is None or os.path.exists(alert_profile) is False:
|
||||
logging.error(f"{alert_profile} alert profile does not exist")
|
||||
sys.exit(1)
|
||||
|
||||
with open(alert_profile) as profile:
|
||||
profile_yaml = yaml.safe_load(profile)
|
||||
if not isinstance(profile_yaml, list):
|
||||
logging.error(f"{alert_profile} wrong file format, alert profile must be "
|
||||
f"a valid yaml file containing a list of items with 3 properties: "
|
||||
f"expr, description, severity" )
|
||||
sys.exit(1)
|
||||
|
||||
for alert in profile_yaml:
|
||||
if list(alert.keys()).sort() != ["expr", "description", "severity"].sort():
|
||||
logging.error(f"wrong alert {alert}, skipping")
|
||||
|
||||
prom_cli.process_alert(alert,
|
||||
datetime.datetime.fromtimestamp(start_time),
|
||||
datetime.datetime.fromtimestamp(end_time))
|
||||
@@ -1,372 +0,0 @@
|
||||
import logging
|
||||
import random
|
||||
import re
|
||||
import time
|
||||
import yaml
|
||||
from ..cerberus import setup as cerberus
|
||||
from krkn_lib.k8s import KrknKubernetes
|
||||
from krkn_lib.telemetry.k8s import KrknTelemetryKubernetes
|
||||
from krkn_lib.models.telemetry import ScenarioTelemetry
|
||||
from krkn_lib.utils.functions import get_yaml_item_value, log_exception
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def run(scenarios_list, config, kubecli: KrknKubernetes, telemetry: KrknTelemetryKubernetes) -> (list[str], list[ScenarioTelemetry]):
|
||||
"""
|
||||
Reads the scenario config and creates a temp file to fill up the PVC
|
||||
"""
|
||||
failed_post_scenarios = ""
|
||||
scenario_telemetries: list[ScenarioTelemetry] = []
|
||||
failed_scenarios = []
|
||||
for app_config in scenarios_list:
|
||||
scenario_telemetry = ScenarioTelemetry()
|
||||
scenario_telemetry.scenario = app_config
|
||||
scenario_telemetry.startTimeStamp = time.time()
|
||||
telemetry.set_parameters_base64(scenario_telemetry, app_config)
|
||||
try:
|
||||
if len(app_config) > 1:
|
||||
with open(app_config, "r") as f:
|
||||
config_yaml = yaml.full_load(f)
|
||||
scenario_config = config_yaml["pvc_scenario"]
|
||||
pvc_name = get_yaml_item_value(
|
||||
scenario_config, "pvc_name", ""
|
||||
)
|
||||
pod_name = get_yaml_item_value(
|
||||
scenario_config, "pod_name", ""
|
||||
)
|
||||
namespace = get_yaml_item_value(
|
||||
scenario_config, "namespace", ""
|
||||
)
|
||||
target_fill_percentage = get_yaml_item_value(
|
||||
scenario_config, "fill_percentage", "50"
|
||||
)
|
||||
duration = get_yaml_item_value(
|
||||
scenario_config, "duration", 60
|
||||
)
|
||||
|
||||
logging.info(
|
||||
"Input params:\n"
|
||||
"pvc_name: '%s'\n"
|
||||
"pod_name: '%s'\n"
|
||||
"namespace: '%s'\n"
|
||||
"target_fill_percentage: '%s%%'\nduration: '%ss'"
|
||||
% (
|
||||
str(pvc_name),
|
||||
str(pod_name),
|
||||
str(namespace),
|
||||
str(target_fill_percentage),
|
||||
str(duration)
|
||||
)
|
||||
)
|
||||
|
||||
# Check input params
|
||||
if namespace is None:
|
||||
logging.error(
|
||||
"You must specify the namespace where the PVC is"
|
||||
)
|
||||
#sys.exit(1)
|
||||
raise RuntimeError()
|
||||
if pvc_name is None and pod_name is None:
|
||||
logging.error(
|
||||
"You must specify the pvc_name or the pod_name"
|
||||
)
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
if pvc_name and pod_name:
|
||||
logging.info(
|
||||
"pod_name will be ignored, pod_name used will be "
|
||||
"a retrieved from the pod used in the pvc_name"
|
||||
)
|
||||
|
||||
# Get pod name
|
||||
if pvc_name:
|
||||
if pod_name:
|
||||
logging.info(
|
||||
"pod_name '%s' will be overridden with one of "
|
||||
"the pods mounted in the PVC" % (str(pod_name))
|
||||
)
|
||||
pvc = kubecli.get_pvc_info(pvc_name, namespace)
|
||||
try:
|
||||
# random generator not used for
|
||||
# security/cryptographic purposes.
|
||||
pod_name = random.choice(pvc.podNames) # nosec
|
||||
logging.info("Pod name: %s" % pod_name)
|
||||
except Exception:
|
||||
logging.error(
|
||||
"Pod associated with %s PVC, on namespace %s, "
|
||||
"not found" % (str(pvc_name), str(namespace))
|
||||
)
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
# Get volume name
|
||||
pod = kubecli.get_pod_info(name=pod_name, namespace=namespace)
|
||||
|
||||
if pod is None:
|
||||
logging.error(
|
||||
"Exiting as pod '%s' doesn't exist "
|
||||
"in namespace '%s'" % (
|
||||
str(pod_name),
|
||||
str(namespace)
|
||||
)
|
||||
)
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
for volume in pod.volumes:
|
||||
if volume.pvcName is not None:
|
||||
volume_name = volume.name
|
||||
pvc_name = volume.pvcName
|
||||
pvc = kubecli.get_pvc_info(pvc_name, namespace)
|
||||
break
|
||||
if 'pvc' not in locals():
|
||||
logging.error(
|
||||
"Pod '%s' in namespace '%s' does not use a pvc" % (
|
||||
str(pod_name),
|
||||
str(namespace)
|
||||
)
|
||||
)
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
logging.info("Volume name: %s" % volume_name)
|
||||
logging.info("PVC name: %s" % pvc_name)
|
||||
|
||||
# Get container name and mount path
|
||||
for container in pod.containers:
|
||||
for vol in container.volumeMounts:
|
||||
if vol.name == volume_name:
|
||||
mount_path = vol.mountPath
|
||||
container_name = container.name
|
||||
break
|
||||
logging.info("Container path: %s" % container_name)
|
||||
logging.info("Mount path: %s" % mount_path)
|
||||
|
||||
# Get PVC capacity and used bytes
|
||||
command = "df %s -B 1024 | sed 1d" % (str(mount_path))
|
||||
command_output = (
|
||||
kubecli.exec_cmd_in_pod(
|
||||
command,
|
||||
pod_name,
|
||||
namespace,
|
||||
container_name
|
||||
)
|
||||
).split()
|
||||
pvc_used_kb = int(command_output[2])
|
||||
pvc_capacity_kb = pvc_used_kb + int(command_output[3])
|
||||
logging.info("PVC used: %s KB" % pvc_used_kb)
|
||||
logging.info("PVC capacity: %s KB" % pvc_capacity_kb)
|
||||
|
||||
# Check valid fill percentage
|
||||
current_fill_percentage = pvc_used_kb / pvc_capacity_kb
|
||||
if not (
|
||||
current_fill_percentage * 100
|
||||
< float(target_fill_percentage)
|
||||
<= 99
|
||||
):
|
||||
logging.error(
|
||||
"Target fill percentage (%.2f%%) is lower than "
|
||||
"current fill percentage (%.2f%%) "
|
||||
"or higher than 99%%" % (
|
||||
target_fill_percentage,
|
||||
current_fill_percentage * 100
|
||||
)
|
||||
)
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
# Calculate file size
|
||||
file_size_kb = int(
|
||||
(
|
||||
float(
|
||||
target_fill_percentage / 100
|
||||
) * float(pvc_capacity_kb)
|
||||
) - float(pvc_used_kb)
|
||||
)
|
||||
logging.debug("File size: %s KB" % file_size_kb)
|
||||
|
||||
file_name = "kraken.tmp"
|
||||
logging.info(
|
||||
"Creating %s file, %s KB size, in pod %s at %s (ns %s)"
|
||||
% (
|
||||
str(file_name),
|
||||
str(file_size_kb),
|
||||
str(pod_name),
|
||||
str(mount_path),
|
||||
str(namespace)
|
||||
)
|
||||
)
|
||||
|
||||
start_time = int(time.time())
|
||||
# Create temp file in the PVC
|
||||
full_path = "%s/%s" % (str(mount_path), str(file_name))
|
||||
command = "fallocate -l $((%s*1024)) %s" % (
|
||||
str(file_size_kb),
|
||||
str(full_path)
|
||||
)
|
||||
logging.debug(
|
||||
"Create temp file in the PVC command:\n %s" % command
|
||||
)
|
||||
kubecli.exec_cmd_in_pod(
|
||||
command,
|
||||
pod_name,
|
||||
namespace,
|
||||
container_name,
|
||||
)
|
||||
|
||||
# Check if file is created
|
||||
command = "ls -lh %s" % (str(mount_path))
|
||||
logging.debug("Check file is created command:\n %s" % command)
|
||||
response = kubecli.exec_cmd_in_pod(
|
||||
command, pod_name, namespace, container_name
|
||||
)
|
||||
logging.info("\n" + str(response))
|
||||
if str(file_name).lower() in str(response).lower():
|
||||
logging.info(
|
||||
"%s file successfully created" % (str(full_path))
|
||||
)
|
||||
else:
|
||||
logging.error(
|
||||
"Failed to create tmp file with %s size" % (
|
||||
str(file_size_kb)
|
||||
)
|
||||
)
|
||||
remove_temp_file(
|
||||
file_name,
|
||||
full_path,
|
||||
pod_name,
|
||||
namespace,
|
||||
container_name,
|
||||
mount_path,
|
||||
file_size_kb,
|
||||
kubecli
|
||||
)
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
# Calculate file size
|
||||
file_size_kb = int(
|
||||
(
|
||||
float(
|
||||
target_fill_percentage / 100
|
||||
) * float(pvc_capacity_kb)
|
||||
) - float(pvc_used_kb)
|
||||
)
|
||||
logging.debug("File size: %s KB" % file_size_kb)
|
||||
|
||||
file_name = "kraken.tmp"
|
||||
logging.info(
|
||||
"Creating %s file, %s KB size, in pod %s at %s (ns %s)"
|
||||
% (
|
||||
str(file_name),
|
||||
str(file_size_kb),
|
||||
str(pod_name),
|
||||
str(mount_path),
|
||||
str(namespace)
|
||||
)
|
||||
)
|
||||
|
||||
start_time = int(time.time())
|
||||
# Create temp file in the PVC
|
||||
full_path = "%s/%s" % (str(mount_path), str(file_name))
|
||||
command = "fallocate -l $((%s*1024)) %s" % (
|
||||
str(file_size_kb),
|
||||
str(full_path)
|
||||
)
|
||||
logging.debug(
|
||||
"Create temp file in the PVC command:\n %s" % command
|
||||
)
|
||||
kubecli.exec_cmd_in_pod(
|
||||
command, pod_name, namespace, container_name
|
||||
)
|
||||
|
||||
# Check if file is created
|
||||
command = "ls -lh %s" % (str(mount_path))
|
||||
logging.debug("Check file is created command:\n %s" % command)
|
||||
response = kubecli.exec_cmd_in_pod(
|
||||
command, pod_name, namespace, container_name
|
||||
)
|
||||
logging.info("\n" + str(response))
|
||||
if str(file_name).lower() in str(response).lower():
|
||||
logging.info(
|
||||
"Waiting for the specified duration in the config: %ss" % (
|
||||
duration
|
||||
)
|
||||
)
|
||||
time.sleep(duration)
|
||||
logging.info("Finish waiting")
|
||||
|
||||
remove_temp_file(
|
||||
file_name,
|
||||
full_path,
|
||||
pod_name,
|
||||
namespace,
|
||||
container_name,
|
||||
mount_path,
|
||||
file_size_kb,
|
||||
kubecli
|
||||
)
|
||||
|
||||
end_time = int(time.time())
|
||||
cerberus.publish_kraken_status(
|
||||
config,
|
||||
failed_post_scenarios,
|
||||
start_time,
|
||||
end_time
|
||||
)
|
||||
except (RuntimeError, Exception):
|
||||
scenario_telemetry.exitStatus = 1
|
||||
failed_scenarios.append(app_config)
|
||||
log_exception(app_config)
|
||||
else:
|
||||
scenario_telemetry.exitStatus = 0
|
||||
scenario_telemetries.append(scenario_telemetry)
|
||||
|
||||
return failed_scenarios, scenario_telemetries
|
||||
|
||||
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def remove_temp_file(
|
||||
file_name,
|
||||
full_path,
|
||||
pod_name,
|
||||
namespace,
|
||||
container_name,
|
||||
mount_path,
|
||||
file_size_kb,
|
||||
kubecli: KrknKubernetes
|
||||
):
|
||||
command = "rm -f %s" % (str(full_path))
|
||||
logging.debug("Remove temp file from the PVC command:\n %s" % command)
|
||||
kubecli.exec_cmd_in_pod(command, pod_name, namespace, container_name)
|
||||
command = "ls -lh %s" % (str(mount_path))
|
||||
logging.debug("Check temp file is removed command:\n %s" % command)
|
||||
response = kubecli.exec_cmd_in_pod(
|
||||
command,
|
||||
pod_name,
|
||||
namespace,
|
||||
container_name
|
||||
)
|
||||
logging.info("\n" + str(response))
|
||||
if not (str(file_name).lower() in str(response).lower()):
|
||||
logging.info("Temp file successfully removed")
|
||||
else:
|
||||
logging.error(
|
||||
"Failed to delete tmp file with %s size" % (str(file_size_kb))
|
||||
)
|
||||
raise RuntimeError()
|
||||
|
||||
|
||||
def toKbytes(value):
|
||||
if not re.match("^[0-9]+[K|M|G|T]i$", value):
|
||||
logging.error(
|
||||
"PVC capacity %s does not match expression "
|
||||
"regexp '^[0-9]+[K|M|G|T]i$'"
|
||||
)
|
||||
raise RuntimeError()
|
||||
unit = {"K": 0, "M": 1, "G": 2, "T": 3}
|
||||
base = 1024 if ("i" in value) else 1000
|
||||
exp = unit[value[-2:-1]]
|
||||
res = int(value[:-2]) * (base**exp)
|
||||
return res
|
||||
@@ -1,325 +0,0 @@
|
||||
import time
|
||||
import random
|
||||
import logging
|
||||
import kraken.cerberus.setup as cerberus
|
||||
import kraken.post_actions.actions as post_actions
|
||||
import yaml
|
||||
from krkn_lib.k8s import KrknKubernetes
|
||||
from krkn_lib.telemetry.k8s import KrknTelemetryKubernetes
|
||||
from krkn_lib.models.telemetry import ScenarioTelemetry
|
||||
from krkn_lib.utils.functions import get_yaml_item_value, log_exception
|
||||
|
||||
|
||||
def delete_objects(kubecli, namespace):
|
||||
|
||||
services = delete_all_services_namespace(kubecli, namespace)
|
||||
daemonsets = delete_all_daemonset_namespace(kubecli, namespace)
|
||||
statefulsets = delete_all_statefulsets_namespace(kubecli, namespace)
|
||||
replicasets = delete_all_replicaset_namespace(kubecli, namespace)
|
||||
deployments = delete_all_deployment_namespace(kubecli, namespace)
|
||||
|
||||
objects = { "daemonsets": daemonsets,
|
||||
"deployments": deployments,
|
||||
"replicasets": replicasets,
|
||||
"statefulsets": statefulsets,
|
||||
"services": services
|
||||
}
|
||||
|
||||
return objects
|
||||
|
||||
|
||||
def get_list_running_pods(kubecli: KrknKubernetes, namespace: str):
|
||||
running_pods = []
|
||||
pods = kubecli.list_pods(namespace)
|
||||
for pod in pods:
|
||||
pod_status = kubecli.get_pod_info(pod, namespace)
|
||||
if pod_status and pod_status.status == "Running":
|
||||
running_pods.append(pod)
|
||||
logging.info('all running pods ' + str(running_pods))
|
||||
return running_pods
|
||||
|
||||
|
||||
def delete_all_deployment_namespace(kubecli: KrknKubernetes, namespace: str):
|
||||
"""
|
||||
Delete all the deployments in the specified namespace
|
||||
|
||||
:param kubecli: krkn kubernetes python package
|
||||
:param namespace: namespace
|
||||
"""
|
||||
try:
|
||||
deployments = kubecli.get_deployment_ns(namespace)
|
||||
for deployment in deployments:
|
||||
logging.info("Deleting deployment" + deployment)
|
||||
kubecli.delete_deployment(deployment, namespace)
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Exception when calling delete_all_deployment_namespace: %s\n",
|
||||
str(e),
|
||||
)
|
||||
raise e
|
||||
|
||||
return deployments
|
||||
|
||||
|
||||
def delete_all_daemonset_namespace(kubecli: KrknKubernetes, namespace: str):
|
||||
"""
|
||||
Delete all the daemonset in the specified namespace
|
||||
|
||||
:param kubecli: krkn kubernetes python package
|
||||
:param namespace: namespace
|
||||
"""
|
||||
try:
|
||||
daemonsets = kubecli.get_daemonset(namespace)
|
||||
for daemonset in daemonsets:
|
||||
logging.info("Deleting daemonset" + daemonset)
|
||||
kubecli.delete_daemonset(daemonset, namespace)
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Exception when calling delete_all_daemonset_namespace: %s\n",
|
||||
str(e),
|
||||
)
|
||||
raise e
|
||||
|
||||
return daemonsets
|
||||
|
||||
|
||||
def delete_all_statefulsets_namespace(kubecli: KrknKubernetes, namespace: str):
|
||||
"""
|
||||
Delete all the statefulsets in the specified namespace
|
||||
|
||||
|
||||
:param kubecli: krkn kubernetes python package
|
||||
:param namespace: namespace
|
||||
"""
|
||||
try:
|
||||
statefulsets = kubecli.get_all_statefulset(namespace)
|
||||
for statefulset in statefulsets:
|
||||
logging.info("Deleting statefulsets" + statefulsets)
|
||||
kubecli.delete_statefulset(statefulset, namespace)
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Exception when calling delete_all_statefulsets_namespace: %s\n",
|
||||
str(e),
|
||||
)
|
||||
raise e
|
||||
|
||||
return statefulsets
|
||||
|
||||
|
||||
def delete_all_replicaset_namespace(kubecli: KrknKubernetes, namespace: str):
|
||||
"""
|
||||
Delete all the replicasets in the specified namespace
|
||||
|
||||
:param kubecli: krkn kubernetes python package
|
||||
:param namespace: namespace
|
||||
"""
|
||||
try:
|
||||
replicasets = kubecli.get_all_replicasets(namespace)
|
||||
for replicaset in replicasets:
|
||||
logging.info("Deleting replicaset" + replicaset)
|
||||
kubecli.delete_replicaset(replicaset, namespace)
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Exception when calling delete_all_replicaset_namespace: %s\n",
|
||||
str(e),
|
||||
)
|
||||
raise e
|
||||
|
||||
return replicasets
|
||||
|
||||
def delete_all_services_namespace(kubecli: KrknKubernetes, namespace: str):
|
||||
"""
|
||||
Delete all the services in the specified namespace
|
||||
|
||||
|
||||
:param kubecli: krkn kubernetes python package
|
||||
:param namespace: namespace
|
||||
"""
|
||||
try:
|
||||
services = kubecli.get_all_services(namespace)
|
||||
for service in services:
|
||||
logging.info("Deleting services" + service)
|
||||
kubecli.delete_services(service, namespace)
|
||||
except Exception as e:
|
||||
logging.error(
|
||||
"Exception when calling delete_all_services_namespace: %s\n",
|
||||
str(e),
|
||||
)
|
||||
raise e
|
||||
|
||||
return services
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def run(
|
||||
scenarios_list,
|
||||
config,
|
||||
wait_duration,
|
||||
failed_post_scenarios,
|
||||
kubeconfig_path,
|
||||
kubecli: KrknKubernetes,
|
||||
telemetry: KrknTelemetryKubernetes
|
||||
) -> (list[str], list[ScenarioTelemetry]):
|
||||
scenario_telemetries: list[ScenarioTelemetry] = []
|
||||
failed_scenarios = []
|
||||
for scenario_config in scenarios_list:
|
||||
scenario_telemetry = ScenarioTelemetry()
|
||||
scenario_telemetry.scenario = scenario_config[0]
|
||||
scenario_telemetry.startTimeStamp = time.time()
|
||||
telemetry.set_parameters_base64(scenario_telemetry, scenario_config[0])
|
||||
try:
|
||||
if len(scenario_config) > 1:
|
||||
pre_action_output = post_actions.run(kubeconfig_path, scenario_config[1])
|
||||
else:
|
||||
pre_action_output = ""
|
||||
with open(scenario_config[0], "r") as f:
|
||||
scenario_config_yaml = yaml.full_load(f)
|
||||
for scenario in scenario_config_yaml["scenarios"]:
|
||||
scenario_namespace = get_yaml_item_value(
|
||||
scenario, "namespace", ""
|
||||
)
|
||||
scenario_label = get_yaml_item_value(
|
||||
scenario, "label_selector", ""
|
||||
)
|
||||
if scenario_namespace is not None and scenario_namespace.strip() != "":
|
||||
if scenario_label is not None and scenario_label.strip() != "":
|
||||
logging.error("You can only have namespace or label set in your namespace scenario")
|
||||
logging.error(
|
||||
"Current scenario config has namespace '%s' and label selector '%s'"
|
||||
% (scenario_namespace, scenario_label)
|
||||
)
|
||||
logging.error(
|
||||
"Please set either namespace to blank ('') or label_selector to blank ('') to continue"
|
||||
)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
delete_count = get_yaml_item_value(
|
||||
scenario, "delete_count", 1
|
||||
)
|
||||
run_count = get_yaml_item_value(scenario, "runs", 1)
|
||||
run_sleep = get_yaml_item_value(scenario, "sleep", 10)
|
||||
wait_time = get_yaml_item_value(scenario, "wait_time", 30)
|
||||
|
||||
logging.info(str(scenario_namespace) + str(scenario_label) + str(delete_count) + str(run_count) + str(run_sleep) + str(wait_time))
|
||||
logging.info("done")
|
||||
start_time = int(time.time())
|
||||
for i in range(run_count):
|
||||
killed_namespaces = {}
|
||||
namespaces = kubecli.check_namespaces([scenario_namespace], scenario_label)
|
||||
for j in range(delete_count):
|
||||
if len(namespaces) == 0:
|
||||
logging.error(
|
||||
"Couldn't delete %s namespaces, not enough namespaces matching %s with label %s"
|
||||
% (str(run_count), scenario_namespace, str(scenario_label))
|
||||
)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
selected_namespace = namespaces[random.randint(0, len(namespaces) - 1)]
|
||||
logging.info('Delete objects in selected namespace: ' + selected_namespace )
|
||||
try:
|
||||
# delete all pods in namespace
|
||||
objects = delete_objects(kubecli,selected_namespace)
|
||||
killed_namespaces[selected_namespace] = objects
|
||||
logging.info("Deleted all objects in namespace %s was successful" % str(selected_namespace))
|
||||
except Exception as e:
|
||||
logging.info("Delete all objects in namespace %s was unsuccessful" % str(selected_namespace))
|
||||
logging.info("Namespace action error: " + str(e))
|
||||
raise RuntimeError()
|
||||
namespaces.remove(selected_namespace)
|
||||
logging.info("Waiting %s seconds between namespace deletions" % str(run_sleep))
|
||||
time.sleep(run_sleep)
|
||||
|
||||
logging.info("Waiting for the specified duration: %s" % wait_duration)
|
||||
time.sleep(wait_duration)
|
||||
if len(scenario_config) > 1:
|
||||
try:
|
||||
failed_post_scenarios = post_actions.check_recovery(
|
||||
kubeconfig_path, scenario_config, failed_post_scenarios, pre_action_output
|
||||
)
|
||||
except Exception as e:
|
||||
logging.error("Failed to run post action checks: %s" % e)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
else:
|
||||
failed_post_scenarios = check_all_running_deployment(killed_namespaces, wait_time, kubecli)
|
||||
|
||||
end_time = int(time.time())
|
||||
cerberus.publish_kraken_status(config, failed_post_scenarios, start_time, end_time)
|
||||
except (Exception, RuntimeError):
|
||||
scenario_telemetry.exitStatus = 1
|
||||
failed_scenarios.append(scenario_config[0])
|
||||
log_exception(scenario_config[0])
|
||||
else:
|
||||
scenario_telemetry.exitStatus = 0
|
||||
scenario_telemetry.endTimeStamp = time.time()
|
||||
scenario_telemetries.append(scenario_telemetry)
|
||||
return failed_scenarios, scenario_telemetries
|
||||
|
||||
|
||||
def check_all_running_pods(kubecli: KrknKubernetes, namespace_name, wait_time):
|
||||
|
||||
timer = 0
|
||||
while timer < wait_time:
|
||||
pod_list = kubecli.list_pods(namespace_name)
|
||||
pods_running = 0
|
||||
for pod in pod_list:
|
||||
pod_info = kubecli.get_pod_info(pod, namespace_name)
|
||||
if pod_info.status != "Running" and pod_info.status != "Succeeded":
|
||||
logging.info("Pods %s still not running or completed" % pod_info.name)
|
||||
break
|
||||
pods_running += 1
|
||||
if len(pod_list) == pods_running:
|
||||
break
|
||||
timer += 5
|
||||
time.sleep(5)
|
||||
logging.info("Waiting 5 seconds for pods to become active")
|
||||
|
||||
# krkn_lib
|
||||
def check_all_running_deployment(killed_namespaces, wait_time, kubecli: KrknKubernetes):
|
||||
|
||||
timer = 0
|
||||
while timer < wait_time and killed_namespaces:
|
||||
still_missing_ns = killed_namespaces.copy()
|
||||
for namespace_name, objects in killed_namespaces.items():
|
||||
still_missing_obj = objects.copy()
|
||||
for obj_name, obj_list in objects.items():
|
||||
if "deployments" == obj_name:
|
||||
deployments = kubecli.get_deployment_ns(namespace_name)
|
||||
if len(obj_list) == len(deployments):
|
||||
still_missing_obj.pop(obj_name)
|
||||
elif "replicasets" == obj_name:
|
||||
replicasets = kubecli.get_all_replicasets(namespace_name)
|
||||
if len(obj_list) == len(replicasets):
|
||||
still_missing_obj.pop(obj_name)
|
||||
elif "statefulsets" == obj_name:
|
||||
statefulsets = kubecli.get_all_statefulset(namespace_name)
|
||||
if len(obj_list) == len(statefulsets):
|
||||
still_missing_obj.pop(obj_name)
|
||||
elif "services" == obj_name:
|
||||
services = kubecli.get_all_services(namespace_name)
|
||||
if len(obj_list) == len(services):
|
||||
still_missing_obj.pop(obj_name)
|
||||
elif "daemonsets" == obj_name:
|
||||
daemonsets = kubecli.get_daemonset(namespace_name)
|
||||
if len(obj_list) == len(daemonsets):
|
||||
still_missing_obj.pop(obj_name)
|
||||
logging.info("Still missing objects " + str(still_missing_obj))
|
||||
killed_namespaces[namespace_name] = still_missing_obj.copy()
|
||||
if len(killed_namespaces[namespace_name].keys()) == 0:
|
||||
logging.info("Wait for pods to become running for namespace: " + namespace_name)
|
||||
check_all_running_pods(kubecli, namespace_name, wait_time)
|
||||
still_missing_ns.pop(namespace_name)
|
||||
killed_namespaces = still_missing_ns
|
||||
if len(killed_namespaces.keys()) == 0:
|
||||
return []
|
||||
|
||||
timer += 10
|
||||
time.sleep(10)
|
||||
logging.info("Waiting 10 seconds for objects in namespaces to become active")
|
||||
|
||||
logging.error("Objects are still not ready after waiting " + str(wait_time) + "seconds")
|
||||
logging.error("Non active namespaces " + str(killed_namespaces))
|
||||
return killed_namespaces
|
||||
@@ -1,186 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
import yaml
|
||||
import logging
|
||||
import time
|
||||
from multiprocessing.pool import ThreadPool
|
||||
from ..cerberus import setup as cerberus
|
||||
from ..post_actions import actions as post_actions
|
||||
from ..node_actions.aws_node_scenarios import AWS
|
||||
from ..node_actions.openstack_node_scenarios import OPENSTACKCLOUD
|
||||
from ..node_actions.az_node_scenarios import Azure
|
||||
from ..node_actions.gcp_node_scenarios import GCP
|
||||
from krkn_lib.k8s import KrknKubernetes
|
||||
from krkn_lib.telemetry.k8s import KrknTelemetryKubernetes
|
||||
from krkn_lib.models.telemetry import ScenarioTelemetry
|
||||
from krkn_lib.utils.functions import log_exception
|
||||
|
||||
def multiprocess_nodes(cloud_object_function, nodes):
|
||||
try:
|
||||
# pool object with number of element
|
||||
|
||||
pool = ThreadPool(processes=len(nodes))
|
||||
logging.info("nodes type " + str(type(nodes[0])))
|
||||
if type(nodes[0]) is tuple:
|
||||
node_id = []
|
||||
node_info = []
|
||||
for node in nodes:
|
||||
node_id.append(node[0])
|
||||
node_info.append(node[1])
|
||||
logging.info("node id " + str(node_id))
|
||||
logging.info("node info" + str(node_info))
|
||||
pool.starmap(cloud_object_function, zip(node_info, node_id))
|
||||
|
||||
else:
|
||||
logging.info("pool type" + str(type(nodes)))
|
||||
pool.map(cloud_object_function, nodes)
|
||||
pool.close()
|
||||
except Exception as e:
|
||||
logging.info("Error on pool multiprocessing: " + str(e))
|
||||
|
||||
|
||||
# Inject the cluster shut down scenario
|
||||
# krkn_lib
|
||||
def cluster_shut_down(shut_down_config, kubecli: KrknKubernetes):
|
||||
runs = shut_down_config["runs"]
|
||||
shut_down_duration = shut_down_config["shut_down_duration"]
|
||||
cloud_type = shut_down_config["cloud_type"]
|
||||
timeout = shut_down_config["timeout"]
|
||||
if cloud_type.lower() == "aws":
|
||||
cloud_object = AWS()
|
||||
elif cloud_type.lower() == "gcp":
|
||||
cloud_object = GCP()
|
||||
elif cloud_type.lower() == "openstack":
|
||||
cloud_object = OPENSTACKCLOUD()
|
||||
elif cloud_type.lower() in ["azure", "az"]:
|
||||
cloud_object = Azure()
|
||||
else:
|
||||
logging.error(
|
||||
"Cloud type %s is not currently supported for cluster shut down" %
|
||||
cloud_type
|
||||
)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
nodes = kubecli.list_nodes()
|
||||
node_id = []
|
||||
for node in nodes:
|
||||
instance_id = cloud_object.get_instance_id(node)
|
||||
node_id.append(instance_id)
|
||||
logging.info("node id list " + str(node_id))
|
||||
for _ in range(runs):
|
||||
logging.info("Starting cluster_shut_down scenario injection")
|
||||
stopping_nodes = set(node_id)
|
||||
multiprocess_nodes(cloud_object.stop_instances, node_id)
|
||||
stopped_nodes = stopping_nodes.copy()
|
||||
while len(stopping_nodes) > 0:
|
||||
for node in stopping_nodes:
|
||||
if type(node) is tuple:
|
||||
node_status = cloud_object.wait_until_stopped(
|
||||
node[1],
|
||||
node[0],
|
||||
timeout
|
||||
)
|
||||
else:
|
||||
node_status = cloud_object.wait_until_stopped(
|
||||
node,
|
||||
timeout
|
||||
)
|
||||
|
||||
# Only want to remove node from stopping list
|
||||
# when fully stopped/no error
|
||||
if node_status:
|
||||
stopped_nodes.remove(node)
|
||||
|
||||
stopping_nodes = stopped_nodes.copy()
|
||||
|
||||
logging.info(
|
||||
"Shutting down the cluster for the specified duration: %s" %
|
||||
(shut_down_duration)
|
||||
)
|
||||
time.sleep(shut_down_duration)
|
||||
logging.info("Restarting the nodes")
|
||||
restarted_nodes = set(node_id)
|
||||
multiprocess_nodes(cloud_object.start_instances, node_id)
|
||||
logging.info("Wait for each node to be running again")
|
||||
not_running_nodes = restarted_nodes.copy()
|
||||
while len(not_running_nodes) > 0:
|
||||
for node in not_running_nodes:
|
||||
if type(node) is tuple:
|
||||
node_status = cloud_object.wait_until_running(
|
||||
node[1],
|
||||
node[0],
|
||||
timeout
|
||||
)
|
||||
else:
|
||||
node_status = cloud_object.wait_until_running(
|
||||
node,
|
||||
timeout
|
||||
)
|
||||
if node_status:
|
||||
restarted_nodes.remove(node)
|
||||
not_running_nodes = restarted_nodes.copy()
|
||||
logging.info(
|
||||
"Waiting for 150s to allow cluster component initialization"
|
||||
)
|
||||
time.sleep(150)
|
||||
|
||||
logging.info("Successfully injected cluster_shut_down scenario!")
|
||||
|
||||
# krkn_lib
|
||||
|
||||
def run(scenarios_list, config, wait_duration, kubecli: KrknKubernetes, telemetry: KrknTelemetryKubernetes) -> (list[str], list[ScenarioTelemetry]):
|
||||
failed_post_scenarios = []
|
||||
failed_scenarios = []
|
||||
scenario_telemetries: list[ScenarioTelemetry] = []
|
||||
|
||||
for shut_down_config in scenarios_list:
|
||||
config_path = shut_down_config
|
||||
pre_action_output = ""
|
||||
if isinstance(shut_down_config, list) :
|
||||
if len(shut_down_config) == 0:
|
||||
raise Exception("bad config file format for shutdown scenario")
|
||||
|
||||
config_path = shut_down_config[0]
|
||||
if len(shut_down_config) > 1:
|
||||
pre_action_output = post_actions.run("", shut_down_config[1])
|
||||
|
||||
scenario_telemetry = ScenarioTelemetry()
|
||||
scenario_telemetry.scenario = config_path
|
||||
scenario_telemetry.startTimeStamp = time.time()
|
||||
telemetry.set_parameters_base64(scenario_telemetry, config_path)
|
||||
|
||||
with open(config_path, "r") as f:
|
||||
shut_down_config_yaml = yaml.full_load(f)
|
||||
shut_down_config_scenario = \
|
||||
shut_down_config_yaml["cluster_shut_down_scenario"]
|
||||
start_time = int(time.time())
|
||||
try:
|
||||
cluster_shut_down(shut_down_config_scenario, kubecli)
|
||||
logging.info(
|
||||
"Waiting for the specified duration: %s" % (wait_duration)
|
||||
)
|
||||
time.sleep(wait_duration)
|
||||
failed_post_scenarios = post_actions.check_recovery(
|
||||
"", shut_down_config, failed_post_scenarios, pre_action_output
|
||||
)
|
||||
end_time = int(time.time())
|
||||
cerberus.publish_kraken_status(
|
||||
config,
|
||||
failed_post_scenarios,
|
||||
start_time,
|
||||
end_time
|
||||
)
|
||||
|
||||
except (RuntimeError, Exception):
|
||||
log_exception(config_path)
|
||||
failed_scenarios.append(config_path)
|
||||
scenario_telemetry.exitStatus = 1
|
||||
else:
|
||||
scenario_telemetry.exitStatus = 0
|
||||
|
||||
scenario_telemetry.endTimeStamp = time.time()
|
||||
scenario_telemetries.append(scenario_telemetry)
|
||||
|
||||
return failed_scenarios, scenario_telemetries
|
||||
|
||||
@@ -1,388 +0,0 @@
|
||||
import datetime
|
||||
import time
|
||||
import logging
|
||||
import re
|
||||
|
||||
import yaml
|
||||
import random
|
||||
|
||||
from krkn_lib import utils
|
||||
from kubernetes.client import ApiException
|
||||
|
||||
from ..cerberus import setup as cerberus
|
||||
from krkn_lib.k8s import KrknKubernetes
|
||||
from krkn_lib.telemetry.k8s import KrknTelemetryKubernetes
|
||||
from krkn_lib.models.telemetry import ScenarioTelemetry
|
||||
from krkn_lib.utils.functions import get_yaml_item_value, log_exception, get_random_string
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def pod_exec(pod_name, command, namespace, container_name, kubecli:KrknKubernetes):
|
||||
for i in range(5):
|
||||
response = kubecli.exec_cmd_in_pod(
|
||||
command,
|
||||
pod_name,
|
||||
namespace,
|
||||
container_name
|
||||
)
|
||||
if not response:
|
||||
time.sleep(2)
|
||||
continue
|
||||
elif (
|
||||
"unauthorized" in response.lower() or
|
||||
"authorization" in response.lower()
|
||||
):
|
||||
time.sleep(2)
|
||||
continue
|
||||
else:
|
||||
break
|
||||
return response
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def get_container_name(pod_name, namespace, kubecli:KrknKubernetes, container_name=""):
|
||||
|
||||
container_names = kubecli.get_containers_in_pod(pod_name, namespace)
|
||||
if container_name != "":
|
||||
if container_name in container_names:
|
||||
return container_name
|
||||
else:
|
||||
logging.error(
|
||||
"Container name %s not an existing container in pod %s" % (
|
||||
container_name,
|
||||
pod_name
|
||||
)
|
||||
)
|
||||
else:
|
||||
container_name = container_names[
|
||||
# random module here is not used for security/cryptographic
|
||||
# purposes
|
||||
random.randint(0, len(container_names) - 1) # nosec
|
||||
]
|
||||
return container_name
|
||||
|
||||
|
||||
|
||||
def skew_node(node_name: str, action: str, kubecli: KrknKubernetes):
|
||||
pod_namespace = "default"
|
||||
status_pod_name = f"time-skew-pod-{get_random_string(5)}"
|
||||
skew_pod_name = f"time-skew-pod-{get_random_string(5)}"
|
||||
ntp_enabled = True
|
||||
logging.info(f'Creating pod to skew {"time" if action == "skew_time" else "date"} on node {node_name}')
|
||||
status_command = ["timedatectl"]
|
||||
param = "2001-01-01"
|
||||
skew_command = ["timedatectl", "set-time"]
|
||||
if action == "skew_time":
|
||||
skew_command.append("01:01:01")
|
||||
else:
|
||||
skew_command.append("2001-01-01")
|
||||
|
||||
try:
|
||||
status_response = kubecli.exec_command_on_node(node_name, status_command, status_pod_name, pod_namespace)
|
||||
if "Network time on: no" in status_response:
|
||||
ntp_enabled = False
|
||||
|
||||
logging.warning(f'ntp unactive on node {node_name} skewing {"time" if action == "skew_time" else "date"} to {param}')
|
||||
pod_exec(skew_pod_name, skew_command, pod_namespace, None, kubecli)
|
||||
else:
|
||||
logging.info(f'ntp active in cluster node, {"time" if action == "skew_time" else "date"} skewing will have no effect, skipping')
|
||||
except ApiException:
|
||||
pass
|
||||
except Exception as e:
|
||||
logging.error(f"failed to execute skew command in pod: {e}")
|
||||
finally:
|
||||
kubecli.delete_pod(status_pod_name, pod_namespace)
|
||||
if not ntp_enabled :
|
||||
kubecli.delete_pod(skew_pod_name, pod_namespace)
|
||||
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def skew_time(scenario, kubecli:KrknKubernetes):
|
||||
if scenario["action"] not in ["skew_date","skew_time"]:
|
||||
raise RuntimeError(f'{scenario["action"]} is not a valid time skew action')
|
||||
|
||||
if "node" in scenario["object_type"]:
|
||||
node_names = []
|
||||
if "object_name" in scenario.keys() and scenario["object_name"]:
|
||||
node_names = scenario["object_name"]
|
||||
elif (
|
||||
"label_selector" in scenario.keys() and
|
||||
scenario["label_selector"]
|
||||
):
|
||||
node_names = kubecli.list_nodes(scenario["label_selector"])
|
||||
for node in node_names:
|
||||
skew_node(node, scenario["action"], kubecli)
|
||||
logging.info("Reset date/time on node " + str(node))
|
||||
return "node", node_names
|
||||
|
||||
elif "pod" in scenario["object_type"]:
|
||||
skew_command = "date --date "
|
||||
if scenario["action"] == "skew_date":
|
||||
skewed_date = "00-01-01"
|
||||
skew_command += skewed_date
|
||||
elif scenario["action"] == "skew_time":
|
||||
skewed_time = "01:01:01"
|
||||
skew_command += skewed_time
|
||||
container_name = get_yaml_item_value(scenario, "container_name", "")
|
||||
pod_names = []
|
||||
if "object_name" in scenario.keys() and scenario["object_name"]:
|
||||
for name in scenario["object_name"]:
|
||||
if "namespace" not in scenario.keys():
|
||||
logging.error("Need to set namespace when using pod name")
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
pod_names.append([name, scenario["namespace"]])
|
||||
elif "namespace" in scenario.keys() and scenario["namespace"]:
|
||||
if "label_selector" not in scenario.keys():
|
||||
logging.info(
|
||||
"label_selector key not found, querying for all the pods "
|
||||
"in namespace: %s" % (scenario["namespace"])
|
||||
)
|
||||
pod_names = kubecli.list_pods(scenario["namespace"])
|
||||
else:
|
||||
logging.info(
|
||||
"Querying for the pods matching the %s label_selector "
|
||||
"in namespace %s"
|
||||
% (scenario["label_selector"], scenario["namespace"])
|
||||
)
|
||||
pod_names = kubecli.list_pods(
|
||||
scenario["namespace"],
|
||||
scenario["label_selector"]
|
||||
)
|
||||
counter = 0
|
||||
for pod_name in pod_names:
|
||||
pod_names[counter] = [pod_name, scenario["namespace"]]
|
||||
counter += 1
|
||||
elif (
|
||||
"label_selector" in scenario.keys() and
|
||||
scenario["label_selector"]
|
||||
):
|
||||
pod_names = kubecli.get_all_pods(scenario["label_selector"])
|
||||
|
||||
if len(pod_names) == 0:
|
||||
logging.info(
|
||||
"Cannot find pods matching the namespace/label_selector, "
|
||||
"please check"
|
||||
)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
pod_counter = 0
|
||||
for pod in pod_names:
|
||||
if len(pod) > 1:
|
||||
selected_container_name = get_container_name(
|
||||
pod[0],
|
||||
pod[1],
|
||||
kubecli,
|
||||
container_name,
|
||||
|
||||
)
|
||||
pod_exec_response = pod_exec(
|
||||
pod[0],
|
||||
skew_command,
|
||||
pod[1],
|
||||
selected_container_name,
|
||||
kubecli,
|
||||
|
||||
)
|
||||
if pod_exec_response is False:
|
||||
logging.error(
|
||||
"Couldn't reset time on container %s "
|
||||
"in pod %s in namespace %s"
|
||||
% (selected_container_name, pod[0], pod[1])
|
||||
)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
pod_names[pod_counter].append(selected_container_name)
|
||||
else:
|
||||
selected_container_name = get_container_name(
|
||||
pod,
|
||||
scenario["namespace"],
|
||||
kubecli,
|
||||
container_name
|
||||
)
|
||||
pod_exec_response = pod_exec(
|
||||
pod,
|
||||
skew_command,
|
||||
scenario["namespace"],
|
||||
selected_container_name,
|
||||
kubecli
|
||||
)
|
||||
if pod_exec_response is False:
|
||||
logging.error(
|
||||
"Couldn't reset time on container "
|
||||
"%s in pod %s in namespace %s"
|
||||
% (
|
||||
selected_container_name,
|
||||
pod,
|
||||
scenario["namespace"]
|
||||
)
|
||||
)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
pod_names[pod_counter].append(selected_container_name)
|
||||
logging.info("Reset date/time on pod " + str(pod[0]))
|
||||
pod_counter += 1
|
||||
return "pod", pod_names
|
||||
|
||||
|
||||
# From kubectl/oc command get time output
|
||||
def parse_string_date(obj_datetime):
|
||||
try:
|
||||
logging.info("Obj_date time " + str(obj_datetime))
|
||||
obj_datetime = re.sub(r"\s\s+", " ", obj_datetime).strip()
|
||||
logging.info("Obj_date sub time " + str(obj_datetime))
|
||||
date_line = re.match(
|
||||
r"[\s\S\n]*\w{3} \w{3} \d{1,} \d{2}:\d{2}:\d{2} \w{3} \d{4}[\s\S\n]*", # noqa
|
||||
obj_datetime
|
||||
)
|
||||
if date_line is not None:
|
||||
search_response = date_line.group().strip()
|
||||
logging.info("Search response: " + str(search_response))
|
||||
return search_response
|
||||
else:
|
||||
return ""
|
||||
except Exception as e:
|
||||
logging.info(
|
||||
"Exception %s when trying to parse string to date" % str(e)
|
||||
)
|
||||
return ""
|
||||
|
||||
|
||||
# Get date and time from string returned from OC
|
||||
def string_to_date(obj_datetime):
|
||||
obj_datetime = parse_string_date(obj_datetime)
|
||||
try:
|
||||
date_time_obj = datetime.datetime.strptime(
|
||||
obj_datetime,
|
||||
"%a %b %d %H:%M:%S %Z %Y"
|
||||
)
|
||||
return date_time_obj
|
||||
except Exception:
|
||||
logging.info("Couldn't parse string to datetime object")
|
||||
return datetime.datetime(datetime.MINYEAR, 1, 1)
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def check_date_time(object_type, names, kubecli:KrknKubernetes):
|
||||
skew_command = "date"
|
||||
not_reset = []
|
||||
max_retries = 30
|
||||
if object_type == "node":
|
||||
for node_name in names:
|
||||
first_date_time = datetime.datetime.utcnow()
|
||||
check_pod_name = f"time-skew-pod-{get_random_string(5)}"
|
||||
node_datetime_string = kubecli.exec_command_on_node(node_name, [skew_command], check_pod_name)
|
||||
node_datetime = string_to_date(node_datetime_string)
|
||||
counter = 0
|
||||
while not (
|
||||
first_date_time < node_datetime < datetime.datetime.utcnow()
|
||||
):
|
||||
time.sleep(10)
|
||||
logging.info(
|
||||
"Date/time on node %s still not reset, "
|
||||
"waiting 10 seconds and retrying" % node_name
|
||||
)
|
||||
|
||||
node_datetime_string = kubecli.exec_cmd_in_pod([skew_command], check_pod_name, "default")
|
||||
node_datetime = string_to_date(node_datetime_string)
|
||||
counter += 1
|
||||
if counter > max_retries:
|
||||
logging.error(
|
||||
"Date and time in node %s didn't reset properly" %
|
||||
node_name
|
||||
)
|
||||
not_reset.append(node_name)
|
||||
break
|
||||
if counter < max_retries:
|
||||
logging.info(
|
||||
"Date in node " + str(node_name) + " reset properly"
|
||||
)
|
||||
kubecli.delete_pod(check_pod_name)
|
||||
|
||||
elif object_type == "pod":
|
||||
for pod_name in names:
|
||||
first_date_time = datetime.datetime.utcnow()
|
||||
counter = 0
|
||||
pod_datetime_string = pod_exec(
|
||||
pod_name[0],
|
||||
skew_command,
|
||||
pod_name[1],
|
||||
pod_name[2],
|
||||
kubecli
|
||||
)
|
||||
pod_datetime = string_to_date(pod_datetime_string)
|
||||
while not (
|
||||
first_date_time < pod_datetime < datetime.datetime.utcnow()
|
||||
):
|
||||
time.sleep(10)
|
||||
logging.info(
|
||||
"Date/time on pod %s still not reset, "
|
||||
"waiting 10 seconds and retrying" % pod_name[0]
|
||||
)
|
||||
pod_datetime = pod_exec(
|
||||
pod_name[0],
|
||||
skew_command,
|
||||
pod_name[1],
|
||||
pod_name[2],
|
||||
kubecli
|
||||
)
|
||||
pod_datetime = string_to_date(pod_datetime)
|
||||
counter += 1
|
||||
if counter > max_retries:
|
||||
logging.error(
|
||||
"Date and time in pod %s didn't reset properly" %
|
||||
pod_name[0]
|
||||
)
|
||||
not_reset.append(pod_name[0])
|
||||
break
|
||||
if counter < max_retries:
|
||||
logging.info(
|
||||
"Date in pod " + str(pod_name[0]) + " reset properly"
|
||||
)
|
||||
return not_reset
|
||||
|
||||
|
||||
# krkn_lib
|
||||
def run(scenarios_list, config, wait_duration, kubecli:KrknKubernetes, telemetry: KrknTelemetryKubernetes) -> (list[str], list[ScenarioTelemetry]):
|
||||
failed_scenarios = []
|
||||
scenario_telemetries: list[ScenarioTelemetry] = []
|
||||
for time_scenario_config in scenarios_list:
|
||||
scenario_telemetry = ScenarioTelemetry()
|
||||
scenario_telemetry.scenario = time_scenario_config
|
||||
scenario_telemetry.startTimeStamp = time.time()
|
||||
telemetry.set_parameters_base64(scenario_telemetry, time_scenario_config)
|
||||
try:
|
||||
with open(time_scenario_config, "r") as f:
|
||||
scenario_config = yaml.full_load(f)
|
||||
for time_scenario in scenario_config["time_scenarios"]:
|
||||
start_time = int(time.time())
|
||||
object_type, object_names = skew_time(time_scenario, kubecli)
|
||||
not_reset = check_date_time(object_type, object_names, kubecli)
|
||||
if len(not_reset) > 0:
|
||||
logging.info("Object times were not reset")
|
||||
logging.info(
|
||||
"Waiting for the specified duration: %s" % (wait_duration)
|
||||
)
|
||||
time.sleep(wait_duration)
|
||||
end_time = int(time.time())
|
||||
cerberus.publish_kraken_status(
|
||||
config,
|
||||
not_reset,
|
||||
start_time,
|
||||
end_time
|
||||
)
|
||||
except (RuntimeError, Exception):
|
||||
scenario_telemetry.exitStatus = 1
|
||||
log_exception(time_scenario_config)
|
||||
failed_scenarios.append(time_scenario_config)
|
||||
else:
|
||||
scenario_telemetry.exitStatus = 0
|
||||
scenario_telemetry.endTimeStamp = time.time()
|
||||
scenario_telemetries.append(scenario_telemetry)
|
||||
|
||||
return failed_scenarios, scenario_telemetries
|
||||
@@ -1,121 +0,0 @@
|
||||
import yaml
|
||||
import logging
|
||||
import time
|
||||
from ..node_actions.aws_node_scenarios import AWS
|
||||
from ..cerberus import setup as cerberus
|
||||
from krkn_lib.telemetry.k8s import KrknTelemetryKubernetes
|
||||
from krkn_lib.models.telemetry import ScenarioTelemetry
|
||||
from krkn_lib.utils.functions import log_exception
|
||||
|
||||
def run(scenarios_list, config, wait_duration, telemetry: KrknTelemetryKubernetes) -> (list[str], list[ScenarioTelemetry]) :
|
||||
"""
|
||||
filters the subnet of interest and applies the network acl
|
||||
to create zone outage
|
||||
"""
|
||||
failed_post_scenarios = ""
|
||||
scenario_telemetries: list[ScenarioTelemetry] = []
|
||||
failed_scenarios = []
|
||||
|
||||
for zone_outage_config in scenarios_list:
|
||||
scenario_telemetry = ScenarioTelemetry()
|
||||
scenario_telemetry.scenario = zone_outage_config
|
||||
scenario_telemetry.startTimeStamp = time.time()
|
||||
telemetry.set_parameters_base64(scenario_telemetry, zone_outage_config)
|
||||
try:
|
||||
if len(zone_outage_config) > 1:
|
||||
with open(zone_outage_config, "r") as f:
|
||||
zone_outage_config_yaml = yaml.full_load(f)
|
||||
scenario_config = zone_outage_config_yaml["zone_outage"]
|
||||
vpc_id = scenario_config["vpc_id"]
|
||||
subnet_ids = scenario_config["subnet_id"]
|
||||
duration = scenario_config["duration"]
|
||||
cloud_type = scenario_config["cloud_type"]
|
||||
ids = {}
|
||||
acl_ids_created = []
|
||||
|
||||
if cloud_type.lower() == "aws":
|
||||
cloud_object = AWS()
|
||||
else:
|
||||
logging.error(
|
||||
"Cloud type %s is not currently supported for "
|
||||
"zone outage scenarios"
|
||||
% cloud_type
|
||||
)
|
||||
# removed_exit
|
||||
# sys.exit(1)
|
||||
raise RuntimeError()
|
||||
|
||||
start_time = int(time.time())
|
||||
|
||||
for subnet_id in subnet_ids:
|
||||
logging.info("Targeting subnet_id")
|
||||
network_association_ids = []
|
||||
associations, original_acl_id = \
|
||||
cloud_object.describe_network_acls(vpc_id, subnet_id)
|
||||
for entry in associations:
|
||||
if entry["SubnetId"] == subnet_id:
|
||||
network_association_ids.append(
|
||||
entry["NetworkAclAssociationId"]
|
||||
)
|
||||
logging.info(
|
||||
"Network association ids associated with "
|
||||
"the subnet %s: %s"
|
||||
% (subnet_id, network_association_ids)
|
||||
)
|
||||
acl_id = cloud_object.create_default_network_acl(vpc_id)
|
||||
new_association_id = \
|
||||
cloud_object.replace_network_acl_association(
|
||||
network_association_ids[0], acl_id
|
||||
)
|
||||
|
||||
# capture the orginal_acl_id, created_acl_id and
|
||||
# new association_id to use during the recovery
|
||||
ids[new_association_id] = original_acl_id
|
||||
acl_ids_created.append(acl_id)
|
||||
|
||||
# wait for the specified duration
|
||||
logging.info(
|
||||
"Waiting for the specified duration "
|
||||
"in the config: %s" % (duration)
|
||||
)
|
||||
time.sleep(duration)
|
||||
|
||||
# replace the applied acl with the previous acl in use
|
||||
for new_association_id, original_acl_id in ids.items():
|
||||
cloud_object.replace_network_acl_association(
|
||||
new_association_id,
|
||||
original_acl_id
|
||||
)
|
||||
logging.info(
|
||||
"Wating for 60 seconds to make sure "
|
||||
"the changes are in place"
|
||||
)
|
||||
time.sleep(60)
|
||||
|
||||
# delete the network acl created for the run
|
||||
for acl_id in acl_ids_created:
|
||||
cloud_object.delete_network_acl(acl_id)
|
||||
|
||||
logging.info(
|
||||
"End of scenario. "
|
||||
"Waiting for the specified duration: %s" % (wait_duration)
|
||||
)
|
||||
time.sleep(wait_duration)
|
||||
|
||||
end_time = int(time.time())
|
||||
cerberus.publish_kraken_status(
|
||||
config,
|
||||
failed_post_scenarios,
|
||||
start_time,
|
||||
end_time
|
||||
)
|
||||
except (RuntimeError, Exception):
|
||||
scenario_telemetry.exitStatus = 1
|
||||
failed_scenarios.append(zone_outage_config)
|
||||
log_exception(zone_outage_config)
|
||||
else:
|
||||
scenario_telemetry.exitStatus = 0
|
||||
scenario_telemetry.endTimeStamp = time.time()
|
||||
scenario_telemetries.append(scenario_telemetry)
|
||||
return failed_scenarios, scenario_telemetries
|
||||
|
||||
1
krkn/cerberus/__init__.py
Normal file
1
krkn/cerberus/__init__.py
Normal file
@@ -0,0 +1 @@
|
||||
from .setup import *
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user