docker.rmi.none - removes all untagged images ( REPOSITORY = <none> )

gistfile1.sh

do_remove_none_images() {
        # find untagged images 
        IMAGE_IDS=$(docker images | grep "^<none>" | awk '{print $"3"}')
        # in case of no untagged images found do nothing
        if [ -n "$IMAGE_IDS" ]; then
                docker rmi $IMAGE_IDS > /dev/null 2>&1
        fi
}
alias d.rmi.none=do_remove_none_images
# you may use a cron job to execute the cleaning repeatingly
# best solution is to run an interval image cleaning container
# have a look at https://github.com/mko-x/docker-image-take-down