# 创建或修改 /etc/docker/daemon.json 文件，修改为如下形式
{
"registry-mirrors" : [
"https://registry.docker-cn.com",
"https://docker.mirrors.ustc.edu.cn",
"http://hub-mirror.c.163.com",
"https://cr.console.aliyun.com/"
]
}
docker service restart command:
systemctl restart docker.service
