如果工作节点缺少用于NFS通信的IP、则创建Pod将失败

适用场景

• NetApp Astra三端
• 工作节点 没有 用于NFS通信的IP地址
•   在创建后为NFS通信分配动态IP地址的Pod
• NFS持久卷(PV)

问题描述

• 使用  通过使用由三端到子创建的NFS PV创建POD失败
• kubectl describe pod <POD> 报告警告：

  Warning  FailedMount        38s   kubelet          Unable to attach or mount volumes: unmounted volumes=[<VOLUME>], unattached volumes=[], failed to process volumes=[]: timed out waiting for the condition
  Warning  FailedMount        32s   kubelet          MountVolume.SetUp failed for volume "<PVC>" : rpc error: code = DeadlineExceeded desc = context deadline exceeded

  Warning  FailedMount        38s   kubelet          Unable to attach or mount volumes: unmounted volumes=[<VOLUME>], unattached volumes=[], failed to process volumes=[]: timed out waiting for the condition
  Warning  FailedMount        32s   kubelet          MountVolume.SetUp failed for volume "<PVC>" : rpc error: code = Internal desc = error mounting NFS volume <IP>:/<NFS> on mountpoint /var/lib/kubelet/pods/<ID>/volumes/kubernetes.io~csi/<PVC>/mount: exit status 32

• 在不挂载PV的情况下创建Pod 、并  在Pod中使用mount 命令 成功挂载NFS。