kubeneters之nfs share出现MountVolume.SetUp failed for volume pvc失败

本文详细介绍了如何使用NFS作为Kubernetes的持久化存储,并通过helm安装nfs-client-provisioner。文章还分析了安装过程中可能遇到的警告信息,如FailedMount错误,以及解决此问题的方法,包括检查NFS服务白名单和确认是否安装nfs-utils软件。
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使用nfs作为k8s持久化存储,安装好helm后可以,可以到https://github.com/watchworld/external-storage,安装要求执行

helm install stable/nfs-client-provisioner --set nfs.server=10.10.0.10 --set nfs.path=/nfs/path

安装后可能出现如下问题信息

Warning  FailedMount  13s   kubelet,  MountVolume.SetUp failed for volume "pvc-3bfaaa74-c4cf-4be6-b9fa-f53112528ed5" : mount failed: exit status 32
Mounting command: systemd-run
Mounting arguments: --description=Kubernetes transient mount for /var/lib/kubelet/pods/e0b8cf29-0217-4e12-90b8-d4dd437aed7e/volumes/kubernetes.io~nfs/pvc-3bfaaa74-c4cf-4be6-b9fa-f53112528ed5 --scope -- mount -t nfs 

这个可以先看下nfs服务是不是把机器节点IP加入白名单,如果已经加入白名单,那要看本机节点有没有安装nfs-utils软件

上述是针对操作系统centos7的。

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Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal Scheduled 41s default-scheduler Successfully assigned default/nfs-server to node-zzt01 Normal Pulling 25s (x2 over 40s) kubelet Pulling image "quay.io/coreos/nfs-provisioner:v1.0.0" Warning Failed 23s (x2 over 38s) kubelet Failed to pull image "quay.io/coreos/nfs-provisioner:v1.0.0": rpc error: code = Unknown desc = failed to pull and unpack image "quay.io/coreos/nfs-provisioner:v1.0.0": failed to resolve reference "quay.io/coreos/nfs-provisioner:v1.0.0": unexpected status from HEAD request to https://quay.io/v2/coreos/nfs-provisioner/manifests/v1.0.0: 401 UNAUTHORIZED Warning Failed 23s (x2 over 38s) kubelet Error: ErrImagePull Normal BackOff 9s (x2 over 37s) kubelet Back-off pulling image "quay.io/coreos/nfs-provisioner:v1.0.0" Warning Failed 9s (x2 over 37s) kubelet Error: ImagePullBackOff node.kubernetes.io/unreachable:NoExecute op=Exists for 300s Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal Scheduled 8m27s default-scheduler Successfully assigned default/busybox-deploy-5946d7b5f-j8n5h to node-zzt02 Warning FailedMount 7m23s (x8 over 8m27s) kubelet MountVolume.SetUp failed for volume "busybox-pv" : mount failed: exit status 32 Mounting command: mount Mounting arguments: -t nfs nfs-server:/exports /var/lib/kubelet/pods/581310dc-13ce-4043-83fc-9b6394bf4c3a/volumes/kubernetes.io~nfs/busybox-pv Output: mount: /var/lib/kubelet/pods/581310dc-13ce-4043-83fc-9b6394bf4c3a/volumes/kubernetes.io~nfs/busybox-pv: bad option; for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.<type> helper program. Warning FailedMount 6m24s kubelet Unable to attach or mount volumes: unmounted volumes=[busybox-storage], unattached volumes=[busybox-storage kube-api-access-rqnnh]: timed out waiting for the condition Warning FailedMount 2m3s (x2 over 4m18s) kubelet Unable to attach or mount volumes: unmounted volumes=[busybox-storage], unattached volumes=[busybox-storage kube-api-access-rqnnh]: timed out waiting for the condition Warning FailedMount 8s (x11 over 6m20s) kubelet MountVolume.SetUp failed for volume "busybox-pv" : mount failed: exit status 32 Mounting command: mount Mounting arguments: -t nfs nfs-server:/exports /var/lib/kubelet/pods/581310dc-13ce-4043-83fc-9b6394bf4c3a/volumes/kubernetes.io~nfs/busybox-pv Output: mount: /var/lib/kubelet/pods/581310dc-13ce-4043-83fc-9b6394bf4c3a/volumes/kubernetes.io~nfs/busybox-pv: bad option; for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.<type> helper program.
07-06
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