Rancher resource cleanup script

Warning

THIS WILL DELETE ALL RESOURCES CREATED BY RANCHER
MAKE SURE YOU HAVE CREATED AND TESTED YOUR BACKUPS
THIS IS A NON REVERSIBLE ACTION

This script will delete all Kubernetes resources belonging to/created by Rancher (including installed tools like logging/monitoring/opa gatekeeper/etc). Note: this does not remove any Longhorn resources.

Using the cleanup script

Run as a Kubernetes Job

• Deploy the job using kubectl create -f deploy/rancher-cleanup.yaml
• Watch logs using kubectl -n kube-system logs -l job-name=cleanup-job -f

Verify

• Deploy the job using kubectl create -f deploy/verify.yaml
• Watch logs using kubectl -n kube-system logs -l job-name=verify-job -f, output should be empty (besides deprecation warnings)
• Check completed logs using kubectl -n kube-system logs -l job-name=verify-job -f | grep -v "is deprecated", this will exclude deprecation warnings.