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Graceful Cluster Shutdown

Graceful Shutdown of an Openshift 4 Cluster

This SOP should be followed in the following scenarios:

  • Shutting down an Openshift 4 cluster.

Prequisite steps: - Follow the SOP for cordoning and draining the nodes. - Follow the SOP for creating an etcd backup.

  1. Get the nodes
nodes=$(oc get nodes -o name  | sed -E "s/node\///")
  1. Shutdown the nodes from the administration box associated with the cluster eg prod/staging.
for node in ${nodes[@]}; do ssh -i ~/ocp_backups/.backup.key core@$node sudo shutdown -h now; done