do you have an answer for this?
i have an idea how to do this, but it is not fully ready:
* it is possible to create a snapshot and a new volume from a volume with one docker command:
** docker volume create --driver drivername --name volume_name_quiesced_snap -o from=volume_name
The flow to get a quiesed snapshot will this:
1 quiesce the db
2 docker volume create --driver drivername --name dbvolume_name_quiesced_snap -o from=dbvolume_name
3 unquiesce the db