A task to remove Advanced Cluster Management (ACM) from an OpenShift cluster

External Registry Update Task¶

This task updates and populates an external registry with required OpenShift container images. It's essential for disconnected installations, ensuring all necessary container images are available locally for cluster operation.

Requirements¶

Parameters¶

openshift/external-registry: External registry URL
openshift/external-registry-update: Boolean flag to enable update
openshift/oc-mirror-url: URL for oc-mirror tool
openshift/pull-secret: Red Hat registry credentials

Infrastructure¶

Existing external registry service
Sufficient storage capacity
Network access to Red Hat registries (for initial mirroring)
Valid registry certificates

Usage¶

Basic Update¶

# Enable registry update
drpcli machines set <machine-uuid> param openshift/external-registry-update to true

# Apply update task
drpcli machines tasks add <machine-uuid> openshift-cluster-external-registry-update

# Verify mirrored images
oc-mirror list --from-registry <registry-url>

Update Process¶

Installs oc-mirror tool
Configures authentication
Initializes registry metadata
Mirrors required images:
OpenShift release images
UBI base images
Serverless images
Service mesh images