How to remove unused docker containers and images (cleanup)

remove-docker-containers-and-untaged-images.md

Delete all containers

$ docker ps -q -a | xargs docker rm

• -q prints only the container IDs
• -a prints all containers

Notice that it uses xargs to issue a remove container command for each container ID

Delete images

Delete all untagged images

$ docker rmi $(docker images | grep "<none>" | awk '{print $3}')

awk must use a single quote (this filters all image IDs)

Delete all images

$ docker rmi $(docker images -q)

Delete all dangling volumes

for v in $(sudo docker volume ls -qf 'dangling=true'); do sudo docker volume rm "$v"; done