创建文件

vim /etc/docker/daemon.json

配置源

{
    "registry-mirrors": [
        "https://docker.mirrors.ustc.edu.cn",
        "https://registry.docker-cn.com",
        "https://hub-mirror.c.163.com",
        "https://mirror.ccs.tencentyun.com",
        "http://f1361db2.m.daocloud.io"
    ]
}

重启

# 方法一，采用 systemctl 来重启，推荐
sudo systemctl daemon-reload
sudo systemctl restart docker

# 方法二，采用 service 来重启
sudo service docker restart

查看源

sudo docker info|grep Mirrors -A 1

sudo docker info