Cleanup Docker

cleanup-docker.sh

#!/usr/bin/env sh
# Script for cleaning up stopped containers and old/dangling images.

set -e

while getopts "f" opt; do
    case "$opt" in
        f)  force=true
            ;;
        *)
            echo "unknown flag: $opt"
            ;;
    esac
done

echo "Cleaning up stopped containers..."
containers=$(docker ps --filter status=created --filter status=exited -q 2>/dev/null)
echo $containers | xargs -n1 -I {} docker rm -v {} || true

echo "Cleaning up dangling images..."
dangling_images=$(docker images --filter dangling=true -q 2>/dev/null)
echo $dangling_images | xargs -n1 -I {} docker rmi {} || true

echo "Cleaning up images older than 10 days..."
images=$(docker images | grep ' ([1-9][0-9] days)\|weeks\|months' | awk '{ print $3 }' | awk '!seen[$0]++')

if [ "$force" = true ]; then
  cmd='docker rmi -f $0 || true'
else
  cmd='docker rmi $0 || true'
fi

echo $images | xargs -n1 sh -c "$cmd"
echo "Finished docker cleanup."