Erro mount SMB shared with customized kubelet path

[gustavocearasc]

Hello,

I have a enviroment with k8s 1.23 and I need to access a shared in windows server.

I have installed csi-driver-smb in my cluster, but when I try to mount it on pod , i have an error.

Log events:

Warning FailedMount pod/nginx MountVolume.MountDevice failed for volume "pv-smb" : rpc error: code = Internal desc = MkdirAll /mnt/paas/kubernetes/kubelet/plugins/kubernetes.io/csi/pv/pv-smb/globalmount failed with error: mkdir /mnt/paas: read-only file system

PV:

apiVersion: v1
kind: PersistentVolume
metadata:
name: pv-smb
spec:
capacity:
storage: 10Gi # PV-Size
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Recycle
storageClassName: smb
mountOptions:
- dir_mode=0777
- file_mode=0777
csi:
driver: smb.csi.k8s.io
readOnly: false
volumeHandle: VOLUME_ID # Must be unique in the EKS Cluster, eg: PV-1
volumeAttributes:
source: "//10.150.6.67/shared"
nodeStageSecretRef:
name: smbcreds
namespace: teste

PVC:

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: pvc-smb
namespace: teste
spec:
accessModes:
- ReadWriteMany
resources:
requests:
storage: 10Gi # Size of the PVC, must be lower then the PV-Size.
volumeName: pv-smb
storageClassName: smb

POD:

apiVersion: v1
kind: Pod
metadata:
creationTimestamp: null
labels:
run: nginx
name: nginx
namespace: teste
spec:
volumes:
- name: smb
persistentVolumeClaim:
claimName: pvc-smb
containers:

• image: ubuntu
  name: nginx
  command: ['sleep','5000']
  volumeMounts:
  • name: smb
    mountPath: "/pv/pv-smb"
    resources: {}
    dnsPolicy: ClusterFirst
    restartPolicy: Always

Any ideia about it?

[Andy Zhang]

@gustavocearasc have you set --set linux.kubelet= parameter in helm chart install, here is the guide: https://github.com/kubernetes-csi/csi-driver-smb/tree/master/charts#tips

[guedesanspace]

So,

My cluster is CCE of the Huwei. I got this informations about it:

It is not possible mount /mnt/paas in cluster CCE.

Any ideia how can I resolve this problem?

[Andy Zhang]

what is your kubelet path? is it /mnt/paas/kubernetes/kubelet ?

[gustavocearasc]

Hi,

Yes, In workes nodes is this mount point.

[Andy Zhang]

have you set mount --make-shared /mnt/paas/kubernetes/kubelet?

[gustavocearasc]

Sorrey, I didn't understand your question.

But this cluster is SAAS in huawei cloud, this mount is default of the cluster.

[MorningTZH]

Same as #639

if your kubelet path is /var/paas/kubernetes/kubelet
Try to add --set linux.kubelet="/var/paas/kubernetes/kubelet" in helm install command

Ref:
https://github.com/kubernetes-csi/csi-driver-smb/tree/master/charts#latest-chart-configuration

Parameter	Description
linux.kubelet	configure kubelet directory path on Linux agent node node

[gustavocearasc]

Hello,

Thank you guys.

It is works now.

To install it in Huawei CCE this command works:

helm install csi-driver-smb csi-driver-smb/csi-driver-smb --namespace kube-system --version v1.13.0 --set linux.kubelet="/mnt/paas/kubernetes/kubelet"

[Andy Zhang]

v1.14 chart config would be fixed by #741