PR Environments

Cleaning up zombies

Sometimes the .github/workflows/pr-k8s-delete.yml GitHub workflow fails to run for various reasons when a PR gets merged or closed, and the indevets-sandbox Kubernetes namespace can end up with “zombie” instances still running.

Periodically, someone should look through all the active deployments to identify ones that don’t correlate with a PR that is still open and manually delete them:

1. Open a shell with KUBECONFIG configured to connect to the current IndeVets cluster

2. Paste this function into your shell:

       #kubectl delete deployment,replicaset,ingress,all,secret -l "app.kubernetes.io/instance=pr-572"
   delete-pr-env() {
       helm -n indevets-sandbox uninstall "pr-${1}"
       kubectl -n indevets-sandbox  delete secret "pr-${1}-tls"
   }
   

3. Run the function for each zombie PR environment you find:

   delete-pr-env 1234