7.5. 置备裸机节点

流程

1. 在置备裸机节点前，请确保 STATE 为 available。

   $  oc -n openshift-machine-api get bmh openshift-worker-<num>

   其中 <num> 是 worker 节点号。

   NAME              STATE     ONLINE ERROR  AGE
   openshift-worker  available true          34h

2. 获取 worker 节点数量。

   $ oc get nodes

   NAME                                                STATUS   ROLES           AGE     VERSION
   openshift-master-1.openshift.example.com            Ready    master          30h     v1.29.4
   openshift-master-2.openshift.example.com            Ready    master          30h     v1.29.4
   openshift-master-3.openshift.example.com            Ready    master          30h     v1.29.4
   openshift-worker-0.openshift.example.com            Ready    worker          30h     v1.29.4
   openshift-worker-1.openshift.example.com            Ready    worker          30h     v1.29.4

3. 获取计算机器集。

   $ oc get machinesets -n openshift-machine-api

   NAME                                DESIRED   CURRENT   READY   AVAILABLE   AGE
   ...
   openshift-worker-0.example.com      1         1         1       1           55m
   openshift-worker-1.example.com      1         1         1       1           55m

4. 将 worker 节点数量增加一个。

   $ oc scale --replicas=<num> machineset <machineset> -n openshift-machine-api

   将 <num> 替换为新的 worker 节点数。将 <machineset> 替换为上一步中计算机器设置的名称。

5. 检查裸机节点的状态。

   $ oc -n openshift-machine-api get bmh openshift-worker-<num>

   其中 <num> 是 worker 节点号。STATE 从 ready 变为 provisioning。

   NAME                    STATE             CONSUMER                          ONLINE   ERROR
   openshift-worker-<num>  provisioning      openshift-worker-<num>-65tjz      true

   provisioning 状态会保持，直到 OpenShift Container Platform 集群置备节点。这可能需要 30 分钟或更长时间。在调配节点后，其状态将更改为 provisioned。

   NAME                    STATE             CONSUMER                          ONLINE   ERROR
   openshift-worker-<num>  provisioned       openshift-worker-<num>-65tjz      true

6. 在置备完成后，确保裸机节点就绪。

   $ oc get nodes

   NAME                                          STATUS   ROLES   AGE     VERSION
   openshift-master-1.openshift.example.com      Ready    master  30h     v1.29.4
   openshift-master-2.openshift.example.com      Ready    master  30h     v1.29.4
   openshift-master-3.openshift.example.com      Ready    master  30h     v1.29.4
   openshift-worker-0.openshift.example.com      Ready    worker  30h     v1.29.4
   openshift-worker-1.openshift.example.com      Ready    worker  30h     v1.29.4
   openshift-worker-<num>.openshift.example.com  Ready    worker  3m27s   v1.29.4

   您还可以检查 kubelet。

   $ ssh openshift-worker-<num>

   [kni@openshift-worker-<num>]$ journalctl -fu kubelet