docker cleanup guide: containers, images, volumes, networks (CentOS version)

docker-cleanup-resources-centos.md

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ sudo docker volume rm $(sudo docker volume ls -qf dangling=true)
$ sudo docker volume ls -qf dangling=true | xargs -r sudo docker volume rm

delete networks

$ sudo docker network ls  
$ sudo docker network ls | grep "bridge"   
$ sudo docker network rm $(sudo docker network ls | grep "bridge" | awk '/ / { print $1 }')

remove docker images

// see: http://stackoverflow.com/questions/32723111/how-to-remove-old-and-unused-docker-images

$ sudo docker images
$ sudo docker rmi $(sudo docker images --filter "dangling=true" -q --no-trunc)

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

remove docker containers

// see: http://stackoverflow.com/questions/32723111/how-to-remove-old-and-unused-docker-images

$ sudo docker ps
$ sudo docker ps -a
$ sudo docker rm $(sudo docker ps -qa --no-trunc --filter "status=exited")