docker初始化

1.下载安装docker
curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
https://yq.aliyun.com/articles/110806?spm=5176.8351553.0.0.58d719910VMjfT

2.sudo mkdir -p /etc/docker

3.vim /etc/docker/daemon.json
加入以下文字
{
"registry-mirrors": ["https://pdrci26k.mirror.aliyuncs.com"]
}
4.sudo groupadd docker
5.sudo gpasswd -a $USER docker
6.进入docker group，以便使用socket接口
newgrp docker

7. sudo systemctl daemon-reload
   sudo systemctl restart docker

仓库使用详见：
https://cr.console.aliyun.com/repository/cn-hangzhou/eos/get-started/detail