在 Mac OS 上更改 Docker 根目录

Question

There is already a question on Stack Overflow about this but the accepted answer doesn't work anymore.

My Docker Desktop app is using the directory below:

/Users/guilpejon/Library/Containers/com.docker.docker/Data/vms/0/data

And docker info gives me this:

Docker Root Dir: /mnt/sda1/var/lib/docker

The question is, how do I change the Docker Root Dir to use the same directory used by the Docker Desktop app?

Answer 1

With docker command you can use --data-root option to provide path of root directory.

Also in docker Preference > Docker Engine option you can provide configuration for docker demon in JSON config. You need to copy content from existing root directory to new directory.

For more option refer https://docs.docker.com/engine/reference/commandline/dockerd/

Answer 2

I tried to follow Nilesh's answer but Docker Desktop gave me an error while trying to do this:

{
  "features": {
    "buildkit": true
  },
  "experimental": false,
  "data-root": "/Users/guilpejon/Library/Containers/com.docker.docker/Data/vms/0/data"
}

On the error pop up window, I chose to reset docker to factory settings and then the Docker Root Dir changed to /var/lib/docker , which works for me.

Now I can control docker's resources through Docker Desktop app again, which is what I wanted.