如何正确清理docker devicemapper文件夹? [英] How to clean docker devicemapper folder properly ?

问题描述

我对存储有一些问题. /var/lib/docker/devicemapper/文件夹占用了我50％的存储空间.

I have some problem about the storage. The folder /var/lib/docker/devicemapper/ is taking 50% of my storage.

在文件夹/var/lib/docker/devicemapper/mnt 中，我有很多空文件夹.

In the folder /var/lib/docker/devicemapper/mnt, I have many empty folders.

如何正确清理docker devicemapper 并删除所有未使用的映射?

How can I properly clean docker devicemapper and remove all unused mapping ?

推荐答案

在最新版本的Docker中，您可以看到用于以下用途的空间:

With recent versions of Docker you can see the space used with:

docker system df

并用以下方法修剪:

docker system prune

上面的命令结合了存在于卷，容器，图像和网络的 prune 命令:

The above command combines the prune command that exists for volumes, containers, images and networks:

docker volume prune

docker container prune

docker image prune

docker network prune

每个命令都有一个--help选项，记录了一个-f(--force)选项，以避免向您提出问题.必须小心使用.

Each command has a --help option documenting a -f (--force) option to avoid asking you questions. It must be used with care.

-o-

在旧版本的Docker上，我运行了脚本:

On older versions of Docker I ran the script:

#!/bin/bash

# Remove dead containers (and their volumes)
docker ps -f status=dead --format '{{ .ID }}' | xargs -r docker rm -v
# Remove dangling volumes
docker volume ls -qf dangling=true | xargs -r docker volume rm
# Remove untagged ("<none>") images
docker images --digests --format '{{.Repository}}:{{.Tag}}@{{.Digest}}' | sed -rne 's/([^>]):<none>@/\1@/p' | xargs -r docker rmi
# Remove dangling images
docker images -qf dangling=true | xargs -r docker rmi
# Remove temporary files
rm -f /var/lib/docker/tmp/*

这篇关于如何正确清理docker devicemapper文件夹?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！