ubuntu20.0.4安装docker失败解决方案

#1.配置阿里云的gpg
curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
 
#2.配置阿里云的docker镜像
sudo add-apt-repository "deb [arch=amd64] https://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"

#3.执行安装命令
sudo apt-get install docker-ce docker-ce-cli containerd.io