Clean out docker images with `<none>` tags,. Removes leftover containers too.

README.md

Remove docker <none> images

After rebuilding an image several times and retagging it the same, you can have a whole load of images with name/tag as <none>/<none>.

THis script removes all stopped containers referencing those images, and then removes the images themselves, cleaning up your image and container lists.

docker-clean-none.sh

#!/usr/bin/env bash

noneimages() {
    docker images --format '{{.ID}} {{.Repository}}/{{.Tag}}'|grep '<none>/<none>'|while read id name; do
        echo $id
    done
}

nonecontainers() {
    local images="$(noneimages|xargs echo|sed -r 's/ /|/g')";

    docker ps -a --format '{{.ID}} {{.Image}}'|grep -E "$images"|while read cid imid; do
        echo $cid
    done
}

nonecontainers | xargs docker rm

noneimages | xargs docker rmi