一.安装Docker
1.更新ubuntu的apt源索引
2.安装包允许apt通过HTTPS使用仓库
sudo dpkg --configure -a
sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
3.添加Docker官方GPG key
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
4.设置Docker稳定版仓库
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
5.添加仓库后,更新apt源索引
6.安装最新版Docker CE(社区版)
sudo apt-get install docker-ce
7.检查Docker CE是否安装正确
sudo docker run hello-world