Subscription channel for Red Hat Advanced Cluster Management operator

Control Plane Node Names

This parameter defines the list of hostnames for control plane nodes in the OpenShift cluster. Control plane nodes run the cluster's control services including API server, scheduler, and etcd.

Requirements

• Must follow DNS hostname standards
• Must be unique within cluster
• Must use cluster domain suffix
• Typically requires exactly three nodes
• Should follow consistent naming pattern

Usage

Default naming pattern:

# Standard format
cp[n].{{.Machine.Name}}.{{.ParamExpand "openshift/cluster-domain"}}

# Example with cluster 'prod' and domain 'example.com':
- cp1.prod.example.com
- cp2.prod.example.com
- cp3.prod.example.com

Notes: - Critical for cluster stability - Required for etcd quorum - Used in API server certificates - Affects load balancer configuration - Should not be changed after deployment