[Docker基礎]如何清除不用的資源

Docker - How to cleanup resources

有時你可能需要清理Docker中不用的資源，特別是在學習Docker過程中創建的鏡像、容器、網絡、存儲卷等。

delete volumes

• 刪除掛載的存儲卷

$ docker volume rm $(docker volume ls -qf )

delete networks

• 刪除創建的網絡

$ docker network ls
$ docker network ls | grep "bridge"
$ docker network rm $(docker network ls | grep "bridge" | awk '//{print $1}')
$ docker network ls | awk '$3 == "bridge" && $2 != "bridge" { print $1 }'

delete images

• 刪除鏡像（刪除鏡像前需要停止所運行的容器並刪除容器）

$ docker images
$ docker rmi $(docker images --filter "dangling=true" -q --no-trunc)
$ docker rmi $(docker images | grep "none" | awk '//{print $3}')

delete containers

• 刪除容器

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

resize disk space for docker vm

$ docker-machine create --driver virtualbox --virtualbox-disk-size "40000" default