如前所述，

docker system prune

有帮助，但在Docker 17.06.1及更高版本中，无需修剪未使用的卷。 从Docker 17.06.1开始，下面的命令也会删除卷:

docker system prune --volumes

来自Docker文档:https://docs.docker.com/config/pruning/

docker system prune命令是一个删除映像、容器和网络的快捷方式。在Docker 17.06.0及更早版本中，卷也会被修剪。在Docker 17.06.1及更高版本中，你必须为Docker系统剪枝指定——volumes标志来剪枝卷。

如果你想修剪卷并保留图像和容器:

docker volume prune

目前的最佳实践是:

docker system prune

在接受结果之前，请注意该命令的输出:

WARNING! This will remove:
  - all stopped containers
  - all networks not used by at least one container
  - all dangling images
  - all dangling build cache

Are you sure you want to continue? [y/N]

换句话说，继续执行这个命令是永久的。请记住，最佳实践是将停止的容器视为短暂的，即您应该使用Docker设计您的工作，不要保留这些停止的容器。如果你不主动调试容器，你可以考虑在运行时使用——rm标志。

请务必阅读这个答案，回复:卷

如果docker系统修剪不适合你，你可能也会对这个答案感兴趣。

如果你使用Docker桌面，你可以通过Docker的首选项在高级设置中增加磁盘镜像大小。

以下是macOS的截图:

这可能是因为默认存储空间设置为40GB(默认路径，/var/lib/docker)

您可以更改存储卷指向不同的路径

编辑文件-> /etc/sysconfig/docker-storage 在行下更新(如果不存在则添加)

DOCKER_STORAGE_OPTIONS = '——存储驱动=叠加图= CUSTOM_PATH '

重启码头工人 Systemctl stop docker systemctl daemon-reload Systemctl start docker

如果你运行命令docker info(它应该显示存储驱动为overlay)

我在RHEL机器上也遇到了这个问题。在堆栈溢出和docker-hub社区中，我没有找到任何合适的解决方案。 如果您在执行以下命令后仍面临此问题:

Docker系统全部修剪

最终奏效的解决方案:

docker info To check current docker storage driver Mine was : Storage Driver: devicemapper; If you have storage driver as overlay2 nothing to worry about. Solution will still work for you. df -h This is to check the available file systems on machine and the path where they are mounted. Two mounted path to have a note: /dev/mapper/rootvg-var 7.6G 1.2G 6.1G 16% /var /dev/mapper/rootvg-apps 60G 9.2G 48G 17% /apps Note- By default docker storage path is /var/lib/docker. It has available space ~6 GB and hence all the space related issues. So basically, I have to move default storage to some other storage where available space is more. For me its File sysyem path '/dev/mapper/rootvg-apps' which is mounted on /apps. Now task is to move /var/lib/docker to something like /apps/newdocker/docker. mkdir /apps/newdocker/docker chmod -R 777 /apps/newdocker/docker Update docker.serive file on linux which resides under: /usr/lib/systemd/system vi /usr/lib/systemd/system/docker.service if storage device is devicemapper , comment existing ExecStart line and add below under [Service]: ExecStart= ExecStart=/usr/bin/dockerd -s devicemapper --storage-opt dm.fs=xfs --storage-opt dm.basesize=40GB -g /apps/newdocker/docker --exec-opt native.cgroupdriver=cgroupfs Or if storage device is overlay2: just add -g /apps/newdocker/docker in the existing ExexStart statement. Something like ExecStart=/usr/bin/dockerd -g /apps/newdocker/docker -H fd:// --containerd=/run/containerd/containerd.sock rm -rf /var/lib/docker (It will delete all existing docker data) systemctl stop docker ps aux | grep -i docker | grep -v grep If no output has been produced by the above command, reload systemd daemon by below command. systemctl daemon-reload systemctl start docker docker info Check out the Data Space Available: 62.15GB after mouting to docker to new File system. DONE

我运行以下命令。

之后不需要重新构建图像。

docker rm $(docker ps -qf 'status=exited')
docker rmi $(docker images -qf "dangling=true")
docker volume rm $(docker volume ls -qf dangling=true)

这些删除退出/悬挂容器和悬挂卷。