Kubernetes: use volumeClaimTemplate to select admin-provisioned PersistentVolume

Question

I have created some Persistent Volumes myself. Is it possible to make the volumeClaimTemplates in my Stateful Set select those? It seems that it will always provision new persistent volumes, rather than use the existing ones.

Kubernetes: 1.5

Answer 1

You need to use the selector option. If you label your pv's accordingly, the pods would use the volumes you previously created.

Example From: https://kubernetes.io/docs/concepts/storage/persistent-volumes/#persistentvolumeclaims

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: myclaim
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 8Gi
  storageClassName: slow
  selector:
    matchLabels:
      release: "stable"
    matchExpressions:
      - {key: environment, operator: In, values: [dev]}

Even though it is a PersistentVolumeClaim, it should be applicable to your volumeClaimTemplate