[Note:Ubuntu] move docker storage location

Default docker image location => /var/lib/docker
Want to move it to => /data/docker

$ sudo -i
$ systemctl stop docker

$ vi /lib/systemd/system/docker.service
Find this line:
ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

Change it to:
ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock -g /data/docker

$ sudo -i
$ mkdir -p /data/docker
$ rsync -aqxP /var/lib/docker/ /data/

$ systemctl daemon-reload
$ systemctl start docker

Check the change:

$ ps aux | grep -i docker | grep -v grep
root       32597  4.0  0.1 1082988 82332 ?       Ssl  14:24   0:00 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock -g /data/docker

Reference:

• https://linuxconfig.org/how-to-move-docker-s-default-var-lib-docker-to-another-directory-on-ubuntu-debian-linux
• https://medium.com/developer-space/how-to-change-docker-data-folder-configuration-33d372669056