this cleans up Docker's image storage

cleanDocker.sh

#!/usr/bin/env bash
# docker cleanup (if you're not careful, docker loves to eat disk space)
# bash <(curl https://gist.githubusercontent.com/greysAcademicCode/a46ea54e902cff5c3f81/raw/33151362a2e97b07db8e8dd82f68e4fbb0702097/cleanDocker.sh)
echo "Cleaning up unneeded docker images."
docker stop $(docker ps -a -q)
docker rm $(docker ps -a -q)
docker images | grep '<none>' |  awk '{print $3}'  | xargs docker rmi || echo "No docker cleaning needed."