Persistent Volume Claim

With a persistent volume created in your cluster, you can then write a manifest for a claim, and use that claim in your pod definition. In the Pod, the volume uses the persistentVolumeClaim.

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
    name: myclaim
spec:
    accessModes:
        - ReadWriteOnce
    resources:
        requests:
                storage: 8GI

In the Pod:

spec:
    containers:
....
    volumes:
        - name: test-volume
          persistentVolumeClaim:
                claimName: myclaim

The Pod configuration could also be as complex as this:

volumeMounts:
      - name: Cephpd
        mountPath: /data/rbd
  volumes:
    - name: rbdpd
      rbd:
        monitors:
        - '10.19.14.22:6789'
        - '10.19.14.23:6789'
        - '10.19.14.24:6789'
        pool: k8s
        image: client
        fsType: ext4
        readOnly: true
        user: admin
        keyring: /etc/ceph/keyring
        imageformat: "2"
        imagefeatures: "layering"