damnever / kubernetes-pod-chaos-monkey

Randomly delete pods in a given namespace

Kubernetes Pod Chaos Monkey

This repository contains a Dockerfile and associated Kubernetes configuration for a Deployment that will randomly delete pods in a given namespace. This is implemented in Bash mostly because I'm writing it for a lightning talk.

An image built from the Dockerfile in this repository is available on Docker Hub as jnewland/kubernetes-pod-chaos-monkey.

Configuration

A few environment variables are available for configuration:

• MIN_DELAY_IN_SECS: minimum seconds between selecting and deleting a pod. Defaults to 30.
• MAX_DELAY_IN_SECS: maximum seconds between selecting and deleting a pod. Defaults to 90.
• NAMESPACE: the namespace to select a pod from. Defaults to default.

Example Kubernetes config is included at config/kubernetes/production/deployment.yaml

Example

$ kubectl apply -f config/kubernetes/production/deployment.yaml
deployment "kubernetes-pod-chaos-monkey" created
$ kubectl get pods | grep chaos
kubernetes-pod-chaos-monkey-3294408070-6w6oh   1/1       Running       0          19s
$ kubectl logs kubernetes-pod-chaos-monkey-3294408070-6w6oh
MIN_DELAY_IN_SECS=300
MAX_DELAY_IN_SECS=600
NAMESPACE=test
[2022/08/03 10:25:11] pod "foo-7ddc6dd94f-4xx7q" deleted
[2022/08/03 10:30:38] pod "bar-55775f8fc8-fwqnp" deleted

License

MIT