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

OpenShift DNS Refresh Blueprint

This blueprint orchestrates the update of DNS records and load balancer configurations for an OpenShift cluster. It's essential for maintaining proper cluster networking when infrastructure changes occur.

Requirements

Infrastructure Access

  • DNS zone management permissions
  • Load balancer access
  • Network configuration rights
  • Cluster admin privileges

Cluster State

  • Operational load balancers
  • Valid DNS zone configuration
  • Network connectivity
  • Active cluster nodes

Usage

Select this blueprint from the cluster management menu when DNS records or load balancer configurations need to be updated. Common scenarios include:

  • After adding new nodes
  • When changing load balancer configurations
  • After network infrastructure changes
  • When troubleshooting DNS resolution issues

Verification

After the blueprint completes, verify proper configuration by checking: - DNS resolution for cluster endpoints - Load balancer health status - Application route accessibility - API server connectivity

Refresh Process

The blueprint executes these tasks in sequence: 1. openshift-cluster-dns-refresh: - Updates DNS zone entries - Reconfigures load balancers - Validates connectivity - Tests resolution