Context If you are using GKE to create your Kubernetes cluster, you can add cluster-autoscaler by checking the Enable cluster auto-scaler option while creating the cluster (this is a Standard GKE cluster and not Autopilot GKE cluster) Problem If you want to tweak this cluster-autoscaler e.g., change some flag) or deploy your own image of cluster-autoscaler (which I wanted to do to test https://github.com/kubernetes/autoscaler/pull/5419), it’s hard to do (StackOverflow question around this).