mount types

Docker Volumes (new style)

Docker Bind Mount (old style)

In Memory Mount

print container mounts

docker inspect mycontainer --format ''

Back up, restore, or migrate data volumes

# source container
docker run -v /dbdata --name dbstore ubuntu /bin/bash

# backup
docker run --rm --volumes-from dbstore -v $(pwd):/backup ubuntu tar cvf /backup/backup.tar /dbdata

# create new container and restore
docker run -v /dbdata --name dbstore2 ubuntu /bin/bash
docker run --rm --volumes-from dbstore2 -v $(pwd):/backup ubuntu bash -c "cd /dbdata && tar xvf /backup/backup.tar --strip 1"

--strip 1: It tells tar to remove one leading directory level from the filenames during extraction.