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Remove CAST resources from GKE cluster

Based on the way how CAST was used on a cluster there are two options to remove CAST resources.

Disconnect GKE cluster

In order to disconnect your cluster from CAST AI click Disconnect cluster button in Clusters list and follow the guidance. Alternatively run following command from your terminal used to access the cluster:

kubectl delete deployment castai-agent -n castai-agent

On top of that, also delete following kubernetes objects related to castai-agent agent:

  • namespace
  • serviceaccount and secret
  • clusterrole and clusterrolebinding
  • role and rolebinding
  • resourcequota
  • configmap

Once cluster is disconnected its Status will change to Disconnected and you can choose to remove it from console by pressing Delete cluster button.

Cluster will continue to run as normal, since Delete cluster action only removes it from CAST AI console.

Removing CAST AI credentials and other resources

Prerequisites

In order to remove these resources first of all:

  • Go to CAST AI console → Autoscaler page → Disable all CAST AI policies
  • Connect to your cluster from the terminal and run command:
kubectl delete deployment castai-agent -n castai-agent

With above mentioned pre-requisites completed please follow next steps in GCP Console to remove CAST resources from your running cluster:

Delete Service Account

Go to GCP console → Identity and Access Management (IAM) → Service Accounts → find Service account to manage *cluster-name* GKE cluster via CAST and delete it