docker images -qf dangling=true | xargs docker rmi
docker volume ls -f dangling=true
docker volume rm $(docker volume ls -qf dangling=true)
http://blog.maxcnunes.net/2014/10/19/finding-out-to-which-docker-container-a-process-belongs-to/ ps -axfo pid,uname,cmd
docker ps -q | xargs docker inspect --format '{{.State.Pid}}, {{.ID}}, {{.Name}}'
docker inspect --format '{{.Mounts}}'