停止docker服务 systemctl stop docker.socket systemctl stop docker.serivce
创建目标目录 mkdir -p /data/docker
同步数据 rsync -avz /var/lib/docker/ /data/docker
找到启动配置 find / -name docker.service systemctl status docker
更改配置 vim /lib/systemd/system/docker.service ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock --graph=/data/docker
配置生效、重启docker systemctl daemon-reload systemctl start docker.service
查看是否生效 docker info