Accommodate Volume Healer #20
Description
With ceph/ceph-csi#2108 we are adding a VolumeHealer in ceph-csi. The VolumeHealer currently aims to restore the rbd-nbd processes back to life after a node plugin restart. For now, the VolumeHealer is triggered as part of the NodePlugin bootup sequence (triggers on every restart)
We hope the healing will be moved to a csi-addons sidecar in the future.