docker数据迁移

docker数据迁移

停止服务

sudo systemctl stop docker

修改配置

cd /lib/systemd/system 
vi docker.service
cat /lib/systemd/system/docker.service

修改[service]，ExecStart部分

[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
#ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock --graph=/home/docker
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutSec=0
RestartSec=2
Restart=always

重启

systemctl daemon-reload
sudo service docker start

再次查看

docker info

```
Docker Root Dir: /home/docker