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Control Plane Node Profile

This parameter specifies which profile to apply to control plane nodes. Control plane nodes run essential cluster services including the API server, scheduler, and etcd database.

Requirements

• Must reference a valid DRP profile
• Profile must contain necessary control plane configuration
• Only applied to nodes with controlplane role

Usage

The default profile is 'openshift-controlplane' which configures:

# Network services
- Kubernetes API (port 6443)
- Machine Config Server (port 22623)

# HAProxy backend services
- api-server-6443
- machine-config-server-22623

Notes: - Control plane nodes require identical configurations - Minimum of three nodes recommended for high availability - Profile includes HAProxy configurations for API and config server - Used in conjunction with openshift/role=controlplane