Docker changing /var/lib/docker/aufs/diff location
There's an easy way to get the docker daemon to handle this for you.
stop docker
$ service docker stopadd this line to /etc/default/docker
# Use DOCKER_OPTS to modify the daemon startup options.DOCKER_OPTS="-g /<new destination>/docker/"start docker
$ service docker startverify the docker files and folders are created in the new destination
remove /var/lib/docker
/var/lib$ sudo rm -rf docker
There is an answer on this thread, basically a ln -s, after some preparatory work
docker ps -q | xargs docker killstop dockercd /var/lib/docker/devicemapper/mntumount ./*mv /var/lib/docker $destln -s $dest /var/lib/dockerstart dockerhttps://github.com/docker/docker/issues/3127#issuecomment-30095645