litmus/experiments/generic/container_kill

Experiment Metadata

Type	Description	K8s Platform
Chaos	Kill the application docker container	Any

Entry-Criteria

• Application pods are healthy before chaos injection

Exit-Criteria

• Application pods are healthy post chaos injection

Pre-Requisites

• Cluster should use docker container runtime

Details

• Executes SIGKILL on containers of random replicas of an application deployment
• Tests deployment sanity (replica availability & uninterrupted service) and recovery workflows of the application pod

Associated Chaos Utils

• pumba/pod_failure_by_sigkill.yaml

Litmusbook Environment Variables

Application

Parameter	Description	Type
APP_NAMESPACE	Namespace in which application pods are deployed	Mandatory
APP_LABEL	Unique Labels in key=value format of application deployment	Mandatory
TARGET_CONTAINER	Name of container which is subjected to kill	Mandatory

Chaos

Parameter	Description	Type
LIB	The chaos lib used to inject the chaos	Mandatory
CHAOSENGINE	ChaosEngine CR name associated with the experiment instance	Optional
CHAOS_SERVICE_ACCOUNT	Service account used by the pumba daemonset	Optional

Procedure

• Identify the values for the mandatory ENV variables
• Create the chaos job via kubectl create -f container_kill_k8s_job.yml
• Check result of the experiment via kubectl describe chaosresult container-kill (prefix chaosengine name to experiment name if applicable)
• View experiment logs via kubectl logs -f <chaos-pod-name>