This commit make required changes for ceph csi drivers to work with
ephemeral volume support. With ephemeral volume support a user can
specify ephemeral volumes in its pod spec and tie the lifecycle
of the PVC with the POD.
An example POD spec looks like this:
```
kind: Pod
apiVersion: v1
metadata:
name: csi-rbd-demo-ephemeral-pod
spec:
containers:
- name: web-server
image: docker.io/library/nginx:latest
volumeMounts:
- mountPath: "/myspace"
name: mypvc
volumes:
- name: mypvc
ephemeral:
volumeClaimTemplate:
spec:
accessModes: ["ReadWriteOnce"]
storageClassName: "rook-ceph-block"
resources:
requests:
storage: 1Gi
```
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
Humble Chirammal
dcf522c37d