docker-clean

#!/bin/sh                                                                                                                                                                            

remove_dangling() {
   echo "Removing dangling images ..."
   docker rmi $(docker images -f dangling=true -q)
}

remove_stopped_containers() {
    echo "Removing stopped containers ..."
    docker rm $(docker ps -qa)
}

case $1 in
    images)
        remove_dangling
        ;;
    containers)
        read -p "Are you sure you want to remove all stopped containers?" -n 1 -r
        echo  #                                                                                                                                                                      
        if [[ $REPLY =~ ^[Yy]$ ]]
        then
            remove_stopped_containers
        fi

        ;;
    *)
        echo "                                                                                                                                                                       
usage: docker-clean containers|images                                                                                                                                                
    containers - removes all stopped containers it can.                                                                                                                              
    images - removes dangling (un-needed) image layers - images you no longer need                                                                                                   
"
        ;;
esac

Thanks mate :)

Though a bigger disk does sound nice...

also docker run --rm to stop them building up...

docker rmi $(docker images -f dangling=true -q), no ? :)

@twillouer ah yes - for some reason that didn't make it from my local copy - well spotted. Corrected.

thanks to @huntc for mentioning "dangling" to be (I would have though it was a joke).

I ran into this issue doing what seems to be fairly lightweight stuff. In my case, even after cleaning out all containers and images, I still have about 25Gb of images according to docker (docker images -a | tr -s ' ' | cut -d ' ' -f 7 | awk '{s+=$1} END {print s}'). That must not be totally accurate though because VB says that the VMDK image is 19Gb.

Going to try https://docs.docker.com/articles/b2d_volume_resize/ since apparently those VMDK images are not resizable.

Should

docker rmi $(docker images -f dangling=true -q)

be

docker rmi -f $(docker images dangling=true -q)

Seems to me the -f is to force the delete of the image id.

Also remove volumes with docker volume rm $(docker volume ls -qf dangling=true)

Be sure to do what tupy suggested only after you get your current containers running so you don't pure volumes that they might be using if they weren't running ;-)