June 29, 2020

[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

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

$ 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:

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