I'm trying to use existing NFS with StateFulSets.

Creation of PresistentVolumeClaim seems automatic using the volumeClaimTemplates.

Problem:

But, since the PresistentVolumeClaim claims a entire PresistentVolume. I have to create PresistentVolume manually for all the replicas. Is there a way to dynamically provision NFS persistent volumes in Kubernetes ?

Note: NFS Server itself is static, just need to create volumes in K8s dynamically, not the NFS Server itslef.

I'm using mongo statefulset example:

---
apiVersion: v1
kind: Service
metadata:
  name: mongo
  labels:
    name: mongo
spec:
  ports:
  - port: 27017
    targetPort: 27017
  clusterIP: None
  selector:
    role: mongo
---
apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: mongo
spec:
  serviceName: "mongo"
  replicas: 3
  template:
    metadata:
      labels:
        role: mongo
    spec:
      terminationGracePeriodSeconds: 10
      containers:
        - name: mongo
          image: mongo
          command:
            - mongod
            - "--replSet"
            - rs0
            - "--smallfiles"
            - "--noprealloc"
          ports:
            - containerPort: 27017
          volumeMounts:
            - name: mongo-data
              mountPath: /data/db
        - name: mongo-sidecar
          image: cvallance/mongo-k8s-sidecar
          env:
            - name: MONGO_SIDECAR_POD_LABELS
              value: "role=mongo"
  volumeClaimTemplates:
  - metadata:
      name: data
    spec:
      accessModes:
        - ReadWriteMany
      resources:
        requests:
          storage: 5Gi
      selector:
        matchLabels:
          type: nfs

It needs 3 PresistentVolumeClaim, so I have to create 3 PV for it to use. Can this be dynamically added in the NFS like other dynamic provisioners like aws-ebs

Is this the proper way to get a StatefulSet with NFS Persistent Volume.