修改Docker 默认存储路径，镜像容器移动到新路径

主机 ubuntu20.04

查看当前docker的默认存储目录

docker info

显示

Docker Root Dir: /var/lib/docker

1 停止docker服务

sudo systemctl stop docker.service

2 数据迁移

迁移/var/lib/docker目录下面的文件到 /media/wmx/soft1/docker_root

sudo cp -rv /var/lib/docker   /media/wmx/soft1/

重命名为docker_root

sudo mv /media/wmx/soft1/docker   /media/wmx/soft1/docker_root 

3 配置目录

sudo gedit /etc/docker/daemon.json 

添加 data-root 为新路径 /media/wmx/soft1/docker_root
文件内容如下：

{
    "runtimes": {
        "nvidia": {
            "path": "nvidia-container-runtime",
            "runtimeArgs": []
        }
        
    },
    "data-root":"/media/wmx/soft1/docker_root"
}

保存退出

4 重启docker服务

重新加载配置，然后重启docker

sudo systemctl daemon-reload
sudo systemctl restart docker

5 查看

状态

sudo systemctl status docker

信息

docker info 

Docker Root Dir: /media/wmx/soft1/docker_root

镜像

docker images

wmx@wmx-ubuntu:~$ docker images
REPOSITORY                      TAG          IMAGE ID       CREATED         SIZE
ghcr.io/open-webui/open-webui   main         7434c2d6ae04   29 hours ago    3.52GB
my-tf-gpu-2.13.0                latest       a9f3602081e5   7 months ago    6.92GB
tensorflow/tensorflow           2.13.0-gpu   6bdca089cc38   8 months ago    6.59GB
tensorflow/tensorflow           devel        2f741e6dfcc2   15 months ago   1.84GB
tensorflow/tensorflow           devel-gpu    1f004cc09814   15 months ago   6.62GB