ubuntu安装docker

sudo apt-get install docker

docker配置源过程

 sudo vi /etc/docker/daemon.json
{
    "registry-mirrors": ["https://registry.docker-cn.com"]
}
  sudo systemctl daemon-reload
  sudo systemctl restart docker
  systemctl stop firewalld

docker添加用户

sudo gpasswd -a yujj docker 
newgrp docker
sudo service docker restart