How to determine what containers use the docker volume?
The script below will show each volume with the container(s) using it:
#!/bin/sh
volumes=$(docker volume ls --format '{{.Name}}')
for volume in $volumes
do
echo $volume
docker ps -a --filter volume="$volume" --format '{{.Names}}' | sed 's/^/ /'
done
Listing volumes by container is slightly trickier so it's an exercise for the reader but the above should suffice unless you have many containers/volumes.
docker ps
can filter by volume to show all of the containers that mount a given volume:
docker ps -a --filter volume=VOLUME_NAME_OR_MOUNT_POINT
Reference: https://docs.docker.com/engine/reference/commandline/ps/#filtering