openshift-cluster-prep¶

A task to prepare initial configuration for an OpenShift cluster deployment

This task prepares the initial configuration required for OpenShift cluster deployment. It generates the install-config.yaml and sets up essential cluster parameters including networking, SSH keys, and registry configurations.

Requirements¶

Parameters¶

• openshift/pull-secret: Red Hat registry authentication credentials
• openshift/cluster-domain: Base domain for cluster DNS
• openshift/ssh-key-pub: Public SSH key for node access
• openshift/network/machineNetwork: Node IP address ranges
• openshift/network/clusterNetwork: Pod network configuration
• openshift/network/serviceNetwork: Service IP ranges

Infrastructure¶

• Network ranges must not overlap
• DNS delegation configured for cluster domain
• Sufficient IP addresses available
• Valid pull secret from Red Hat

Usage¶

Basic Setup¶

# Apply preparation task
drpcli machines tasks add <machine-uuid> openshift-cluster-prep

# Verify configuration
cat /root/cluster/install-config.yaml

Configuration Process¶

1. Generates SSH key pair if not exists
2. Creates install-config.yaml with:
3. Network configurations
4. Node counts and roles
5. Pull secret
6. SSH key
7. Registry settings
8. Stores configuration in cluster profile

Objects that Reference openshift-cluster-prep¶

Not used in current content packs

Objects used by openshift-cluster-prep¶

• templates install-config.yaml.tmpl in field Templates[0].ID as value install-config.yaml.tmpl
• templates prelude.tmpl