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dockerkubernetesnfs

Kubernetes NFS PersistentVolumeClaim has status Pending

I am trying to configure my Kubernetes cluster to use a local NFS server for persistent volumes.

I set up the PersistentVolume as follows:

apiVersion: v1
kind: PersistentVolume
metadata:
  name: hq-storage-u4
  namespace: my-ns
spec:
  capacity:
    storage: 10Ti
  accessModes:
    - ReadWriteMany
  persistentVolumeReclaimPolicy: Retain
  nfs:
    path: /data/u4
    server: 10.30.136.79
    readOnly: false

The PV looks OK in kubectl

$ kubectl get pv
NAME            CAPACITY   ACCESSMODES   RECLAIMPOLICY   STATUS     CLAIM             STORAGECLASS   REASON    AGE
hq-storage-u4   10Ti       RWX           Retain          Released   my-ns/pv-50g                               49m

I then try to create the PersistentVolumeClaim:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: pvc-50gb
  namespace: my-ns
spec:
  accessModes:
  - ReadWriteMany
  resources:
     requests:
       storage: 5Gi

Kubectl shows the pvc status is Pending

$ kubectl get pvc
NAME       STATUS    VOLUME    CAPACITY   ACCESSMODES   STORAGECLASS   AGE
pvc-50gb   Pending                                                     16m

When I try to add the volume to a deployment, I get the error:

[SchedulerPredicates failed due to PersistentVolumeClaim is not bound: "pvc-50gb", which is unexpected., SchedulerPredicates failed due to PersistentVolumeClaim is not bound: "pvc-50gb", which is unexpected., SchedulerPredicates failed due to PersistentVolumeClaim is not bound: "pvc-50gb", which is unexpected.]

How to I get the pvc to a working state?

Solution

  • It turned out that I needed to put the IP (I also put the path) in quotes. After fixing that, the pvc goes to status Bound, and the pod can mount correctly.