mirror of
https://github.com/krkn-chaos/krkn.git
synced 2026-02-14 18:10:00 +00:00
ab98e416a6
* pod monitoring integration in plugin scenario Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com> * pod monitoring integration in container scenario Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com> * removed wait-for-pod step from plugin scenario config files Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com> * introduced global pod recovery time Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com> nit Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com> * introduced krkn_pod_recovery_time in plugin scenario and removed all the references to wait-for-pods Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com> fix Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com> * functional test fix Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com> * main branch functional test fix Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com> * increased recovery times Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com> --------- Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com>
1.7 KiB
1.7 KiB
Pod Scenarios
Krkn recently replaced PowerfulSeal with its own internal pod scenarios using a plugin system. You can run pod scenarios by adding the following config to Krkn:
kraken:
chaos_scenarios:
- plugin_scenarios:
- path/to/scenario.yaml
You can then create the scenario file with the following contents:
# yaml-language-server: $schema=../plugin.schema.json
- id: kill-pods
config:
namespace_pattern: ^kube-system$
label_selector: k8s-app=kube-scheduler
krkn_pod_recovery_time: 120
Please adjust the schema reference to point to the schema file. This file will give you code completion and documentation for the available options in your IDE.
Pod Chaos Scenarios
The following are the components of Kubernetes/OpenShift for which a basic chaos scenario config exists today.
| Component | Description | Working |
|---|---|---|
| Basic pod scenario | Kill a pod. | ✔️ |
| Etcd | Kills a single/multiple etcd replicas. | ✔️ |
| Kube ApiServer | Kills a single/multiple kube-apiserver replicas. | ✔️ |
| ApiServer | Kills a single/multiple apiserver replicas. | ✔️ |
| Prometheus | Kills a single/multiple prometheus replicas. | ✔️ |
| OpenShift System Pods | Kills random pods running in the OpenShift system namespaces. | ✔️ |