OpenShift7 min
OpenShift etcd backup, handover checklist and DR cluster build notes
How to back up etcd on OpenShift, what to hand over to operations, and how to plan a disaster recovery cluster with a value sheet and restore decisions.
OpenShift
6 published guides
OpenShift7 min
HAProxy and Keepalived for OpenShift UPI: load balancer template
A tested pattern for OpenShift user-provisioned installs: two HAProxy nodes, two Keepalived VIPs, bootstrap handling, SELinux and failover testing.
OpenShift7 min
OpenShift LDAP/Active Directory login and safe kubeadmin removal
Configure OpenShift OAuth with LDAPS and Active Directory, test the bind first, grant cluster-admin to a group, then remove kubeadmin without locking yourself out.
OpenShift8 min
OpenShift persistent storage on a Fibre Channel SAN: static PV/PVC workflow
A controlled workflow for presenting SAN LUNs to OpenShift workers and binding them with static PVs and PVCs: request template, multipath checks, YAML and tests.
OpenShift10 min
OpenShift UPI install: install-config, ignition, bootstrap and CSRs
Step-by-step OpenShift user-provisioned install flow: install-config.yaml, manifests, chrony MachineConfig, ignition hosting, RHCOS boot order and CSR approval.
OpenShift8 min
OpenShift UPI prerequisites: DNS, VIPs, NTP and firewall checklist
Everything to confirm before installing OpenShift on user-provisioned infrastructure: DNS records, VIPs, NTP, firewall ports, proxy and registry access.