一、准备Docker安装源
1.首先我们进行旧版docker的卸载防止冲突
sudo apt-get remove docker docker-engine docker.io containerd runc
2.更新ubuntu软件包
sudo apt-get update
3.安装与设置docker依赖资源
安装依赖包
sudo apt-get install \ apt-transport-https \ ca-certificates \ curl \ gnupg-agent \ software-properties-common
添加秘钥
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
检验秘钥
apt-key fingerprint 0EBFCD88
设置稳定版仓库
sudo add-apt-repository \ "deb [arch=amd64] https://download.docker.com/linux/ubuntu \ $(lsb_release -cs) \ stable
4.更新apt包索引
sudo apt-get update
5.安装最新版本的Docker
sudo apt-get install docker-ce docker-ce-cli containerd.io
6.测试Docker是否安装成功
sudo docker run hello-world