luiscoms

# Delete all containers
docker rm $(docker ps -aq --filter status="exited" --filter status="dead")
docker rm $(docker ps -aq)

# Delete all untaged images
docker rmi $(docker images --filter "dangling=true" -q | sort -u)

http://serverspec.org/resource_types.html
https://docs.docker.com/engine/installation/linux/ubuntulinux/#create-a-docker-group