Docker Cleanup Script

dockerclean.sh

#!/bin/bash
#
# Cleanup Docker
#

if [ ! $(command -v docker) ]; then
  echo "Docker is not installed."
  exit 1
fi

disk_space_before=$(df -k / | awk 'NR==2 {print $4}')

docker volume rm $(docker volume ls -qf dangling=true) 2> /dev/null
docker rmi $(docker images -f "dangling=true" -q) 2> /dev/null
VERSION=$(docker --version | cut -d' ' -f3 | cut -d',' -f1)
if [ $VERSION > 1.9 ]; then
  docker volume rm $(docker volume ls -qf dangling=true) 2> /dev/null
else
  docker run -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/docker:/var/lib/docker --rm martin/docker-cleanup-volumes 2> /dev/null
fi

disk_space_after=$(df -k / | awk 'NR==2 {print $4}')
freed_diskspace=$(($disk_space_after - $disk_space_before))
echo -e "\nDocker cleanup finished. Total disk space freed: $freed_diskspace Kb."