docker 配置国内源

 less /etc/docker/daemon.json
{
        "registry-mirrors": [
                "https://registry.docker-cn.com",
                "https://kfwkfulq.mirror.aliyuncs.com",
                "https://pee6w651.mirror.aliyuncs.com",
                "https://21qq34jg.mirror.aliyumcs.com"
        ]
}