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ワーカーノードにNFS通信用のIPがないとPODの作成が失敗する

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astra_trident
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snapx
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環境

  • NetApp Astra Trident
  •   NFS通信用のIPアドレスがないワーカーノード
  •   作成後にNFS通信用の動的IPアドレスが割り当てられたポッド
  • NFS永続的ボリューム(PV)

問題

  • Tridentで作成されたNFS PVを使用したポッドの作成が失敗する
  • kubectl describe pod <POD> レポートの警告:

  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

  • PV セキュアをマウントせずにPODを作成し、  PODでmount コマンドを使用してNFSマウントを 実行することは成功します。

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