Quiesce I/O in application containers before creating a Snapshot/Clone

[nixpanic]

It would be amazing if CSI-Addons can provide a way to temporary quiesce I/O while a volume snapshot is made.

The process could look a little like this:

1. a user initiates Quiesce
2. csi-addons execs a command in the application container (flush I/O, pause VM, ...)
3. csi-addons calls fsfreeze or similar the NodePlugin where the volume is mounted
4. the user creates a snapshot/clone
5. csi-addons calls unfreeze or similar the NodePlugin where the volume is mounted
6. csi-addons execs a command in the application container (resume VM, ...)

[Madhu-1]

is it similar to the proposal kubernetes/enhancements#1995?