cleanup unused docker containers and images

clean_docker_images

#!/usr/bin/env bash
#set IFS to split lines into words 
IFS=$'\n'
#find old stopped containers
OLD_CONTAINERS=( $(docker ps -a| grep -v latest | grep -v 'IMAGE' | awk '{print $1}') )
#find images older than 1 day
OLD_IMGS=( $(docker images | grep -v latest | grep 'days\|week\|month\|year' | awk '{print $3}') )
unset IFS

echo "found ${#OLD_CONTAINERS[@]} old/unused containers"
for CONTAINER in "${OLD_CONTAINERS[@]}" ; do
  echo "deleting old container: $CONTAINER"
  docker rm $CONTAINER
done

echo "found ${#OLD_IMGS[@]} images older than 1 day"
for IMG in "${OLD_IMGS[@]}" ; do
  echo "deleting image: $IMG"
  docker rmi $IMG
done