What is the '.save_docker/' folder? Can I delete it?

After using docker, I found my disk space had been eat a lot. I searched google to resolve the problem, found a post said this is because of aufs & devicemapper.

Now I found a folder named .save_docker in /home. In this folder, there is a folder names aufs, the aufs folder almost 16 G.

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  • One Solution collect form web for “What is the '.save_docker/' folder? Can I delete it?”

    save_docker doesn’t seem used in docker or boot2docker or compose or machine.

    But even before trying to remove it, check if you have:

    • stopped containers that you could remove

      docker rm -v $(docker ps -a -q -f status=exited)
      
    • dangling images

      docker rmi $(docker images --filter "dangling=true" -q --no-trunc)
      

    For that, see HardySimpson/docker-cleanup bash script.
    Or my dcl bash script.

    Then check if you still have a disk space issue, and if /home/.save_docker was modified in any way.

    Docker will be the best open platform for developers and sysadmins to build, ship, and run distributed applications.