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A blueprint for safely removing Advanced Cluster Management from an OpenShift cluster

OpenShift ACM Cleanup Blueprint

This blueprint orchestrates the removal of Red Hat Advanced Cluster Management (ACM) from an OpenShift cluster. It ensures a clean and complete removal of all ACM components and resources.

Requirements

Cluster State

  • ACM must be installed
  • No active managed clusters
  • Backup of any critical ACM data
  • Cluster admin access

Usage

Select this blueprint from the cluster management menu when you need to remove Advanced Cluster Management from your cluster. Common scenarios include:

  • Decommissioning ACM
  • Preparing for fresh ACM installation
  • Cluster cleanup operations
  • Troubleshooting ACM issues

Verification

After the blueprint completes, verify removal by checking: - ACM namespace absence - MultiClusterHub resource removal - Operator subscription cleanup - Related resource cleanup

Cleanup Process

The blueprint executes these tasks in sequence: 1. openshift-cluster-acm-cleanup: - Removes MultiClusterHub - Deletes operator subscriptions - Cleans up related resources - Removes namespace