1、停止docker服务
systemctl stop docker2、创建新的docker目录
mkdir -p /mnt/sdb/data/docker3、迁移/var/lib/docker
rsync -avz /var/lib/docker /mnt/sdb/data/docker/4、修改配置路径
修改默认配置文件/etc/docker/daemon.json
增加映射 "graph":"/mnt/sdb/data/docker"
{
"registry-mirrors": ["http://hub-mirror.c.163.com"],
"graph":"/mnt/sdb/data/docker"
}5、重新加载 docker
systemctl daemon-reload
systemctl restart docker
systemctl enable docker6、删除 /var/lib/docker
rm -rf /var/lib/docker7、查看修改结果
docker info |grep Dir