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operate-ocp-cluster.md

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Operation - OpenShift Container Platform Cluster

Ansible script provide the easy ways to maintains OCP cluster and RHEV VMs. By default, before stop/teardonw, it will wait sometime for evacuate all pods on the node that will be gone.

Features

  • start single/multiple nodes or cluster
  • stop single/multiple nodes or cluster
  • teardown single/multiple nodes or cluster

Common Useful option for operations

  • tag: If there are multiple clusters, you can specify specific ocp cluster
  • target_node_filter: It can specific nodes operated to.

start single/multiple nodes or cluster

# start cluster
./deploy.py --deploy_type=ocp --operate=start

# start infra nodes
./deploy.py --deploy_type=ocp --operate=start --target_node_filter=infra

# start infra_1 node
./deploy.py --deploy_type=ocp --operate=start --target_node_filter=infra_1

stop single/multiple nodes or cluster

# stop cluster
./deploy.py --deploy_type=ocp --operate=stop

# stop infra nodes
./deploy.py --deploy_type=ocp --operate=stop --target_node_filter=infra

# stop infra_1 node
./deploy.py --deploy_type=ocp --operate=stop --target_node_filter=infra_1

teardown single/multiple nodes or cluster

Useful option

  • ocp_install : If set false, it skips cordon/drain node before teardown. It makes faster teardown.
# teardown cluster
./deploy.py --deploy_type=ocp --operate=teardown --ocp_install=false

# teardown infra nodes
./deploy.py --deploy_type=ocp --operate=teardown --target_node_filter=infra

# teardown infra_1 node
./deploy.py --deploy_type=ocp --operate=teardown --target_node_filter=infra_1