Kubernetes POD not able to mount NFS volume crated dynamically

Question

Hello, I am trying to mount a dynamically created nfs volume (on Powerstore) on a kubernetes POD. Getting below error: Events:Type Reason Age From Message---- ------ ---- ---- -------Normal Scheduled 5m17s default-scheduler Successfully assigned powerstore/powerstore-pod-nf s to amd-compute-02.dcws.labNormal SuccessfulAttachVolume 5m17s attachdetach-controller AttachVolume.Attach succeeded for volume 'csi-psto re-70078bc833'Warning FailedMount 3m13s kubelet MountVolume.MountDevice failed for volume 'csi-pst ore-70078bc833' : rpc error: code = Aborted desc = pendingWarning FailedMount 72s (x2 over 3m14s) kubelet MountVolume.MountDevice failed for volume 'csi-pst ore-70078bc833' : rpc error: code = DeadlineExceeded desc = context deadline exceededWarning FailedMount 59s (x2 over 3m14s) kubelet Unable to attach or mount volumes: unmounted volum es=[nfs], unattached volumes=[nfs confmap kube-api-access-n4n42]: timed out waiting for the condition   The process I followed is: 1) Created NFS storage class. ------------------------------------------ [root@amd-csah core]# oc describe sc powerstore-sc-nfsName: powerstore-sc-nfsIsDefaultClass: NoAnnotations: Provisioner: csi-powerstore.dellemc.com Parameters: fstype=nfs,readOnly=false,server=192.168.31.100 AllowVolumeExpansion: MountOptions: ReclaimPolicy: Delete VolumeBindingMode: Immediate Events: [root@amd-csah core]# ------------------------------------------ 2) Created PVC. ----------------------------------------- [root@amd-csah core]# oc describe pvc powerstore-nfs-pvc -n powerstoreName: powerstore-nfs-pvcNamespace: powerstoreStorageClass: powerstore-sc-nfsStatus: BoundVolume: csi-pstore-70078bc833Labels: Annotations: pv.kubernetes.io/bind-completed: yes pv.kubernetes.io/bound-by-controller: yes volume.beta.kubernetes.io/storage-provisioner: csi-powerstore.dellemc.com Finalizers: [kubernetes.io/pvc-protection] Capacity: 17Gi Access Modes: RWO VolumeMode: Filesystem Used By: powerstore-pod-nfs Events: [root@amd-csah core]# ----------------------------------------- 3) created POD. ---------------------------------------- [root@amd-csah core]# cat powerstore-nfs-pod.yamlapiVersion: v1kind: Podmetadata:name: powerstore-pod-nfsnamespace: powerstorespec:containers:- name: nfs-containerimage: quay.io/centos/centosports:- containerPort: 80name: 'http-server'volumeMounts:- mountPath: '/mnt'name: nfs- mountPath: '/tmp'name: confmapcommand: ['/bin/bash', '-c', 'cp /tmp/keys /mnt/keys && sleep 2000000000']volumes:- name: nfspersistentVolumeClaim:claimName: powerstore-nfs-pvc- name: confmapconfigMap:name: powerstore-configmap-nfsitems:- key: samplepath: keys[root@amd-csah core]# -------------------------------------------- I can see the PV created on kubernetes cluster, on Powerstore also the volume is created, but kubelet is posting the mount failed error as mentioned above. ConfigMap is also created. Need help in understanding what is going wrong.

Flo_csI · Answer

Hi @AbhimanyuRai,

We will need the logs of the controller driver to understand why the provisioning failed.

Do you mind connecting the slack channel for Container Storage Module here : https://dellemccsm.slack.com/

If you need an invite you can ask for it here : http://del.ly/Slack_request

There is a broader audience to answer your question.

Thanks !

Containers

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