MarkdownNotes/howto - change default docker directory.md

How to move the default /var/lib/docker to another directory for Docker on Linux?

How to move the default /var/lib/docker to another directory for Docker on Linux? | DigitalOcean

• Stop the server: sudo systemctl stop docker
• Create/edit the configuration at /etc/docker/daemon.json, for example: { "data-root": "/new/path/docker-data-root" }
• Copy your data there:

sudo cp -axT /var/lib/docker /new/path/docker-data-root

(if the target docker-data-root directory already exists, make sure you don’t accidentally copy into a docker subdirectory).

• Start the server:

sudo systemctl start docker

• Check everything works:

sudo docker images