docker安装centos

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获取容器的ip:
docker inspect ab8fef3680c4|grep IPAddress

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默认只给root用户使用：所以要单独将非root账户添加进组！
sudo gpasswd -a 账号名 docker
sudo usermod -aG docker 账户名

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• 因为GFW的原因无法下载镜像怎么办？
  https://yq.aliyun.com/articles/110806?spm=5176.100239.blogcont59144.11.WU1Cx3

sudo apt-get update
sudo apt-get -y install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL http://mirrors.aliyun.com/docker-ce/linux/debian/gpg | sudo apt-key add 
sudo apt-get -y update
sudo apt-get -y install docker-ce