2.9. SiteConfig Operator를 사용하여 단일 노드 OpenShift 클러스터 확장

spec:
  ...
  nodes:
    - hostName: "<host_name>"
      role: "worker"
      templateRefs:
        - name: ai-node-templates-v1
          namespace: rhacm
      bmcAddress: "<bmc_address>"
      bmcCredentialsName:
        name: "<bmc_credentials_name>"
      bootMACAddress: "<boot_mac_address>"
...

oc apply -f <clusterinstance>.yaml

oc get bmh -n <clusterinstance_namespace> --watch --kubeconfig <hub_cluster_kubeconfig_filename>

NAME                        STATE          CONSUMER   ONLINE   ERROR   AGE
master-node1.example.com    provisioned               true             81m
worker-node2.example.com    provisioning              true             44m

oc get agents -n <clusterinstance_namespace> --kubeconfig <hub_cluster_kubeconfig_filename>

NAME                       CLUSTER                   APPROVED    ROLE     STAGE
master-node1.example.com   <managed_cluster_name>    true        master   Done
master-node2.example.com   <managed_cluster_name>    true        master   Done
master-node3.example.com   <managed_cluster_name>    true        master   Done
worker-node1.example.com   <managed_cluster_name>    false       worker
worker-node2.example.com   <managed_cluster_name>    true        worker   Starting installation
worker-node2.example.com   <managed_cluster_name>    true        worker   Installing
worker-node2.example.com   <managed_cluster_name>    true        worker   Writing image to disk
worker-node2.example.com   <managed_cluster_name>    true        worker   Waiting for control plane
worker-node2.example.com   <managed_cluster_name>    true        worker   Rebooting
worker-node2.example.com   <managed_cluster_name>    true        worker   Joined
worker-node2.example.com   <managed_cluster_name>    true        worker   Done

oc get nodes --kubeconfig <managed_cluster_kubeconfig_filename>

NAME                       STATUS    ROLES                  AGE   VERSION
worker-node2.example.com   Ready     worker                 1h    v1.30.5
worker-node1.example.com   Ready     worker                 19h   v1.30.5
master-node1.example.com   Ready     control-plane,master   19h   v1.30.5
master-node2.example.com   Ready     control-plane,master   19h   v1.30.5
master-node3.example.com   Ready     control-plane,master   19h   v1.30.5