安装失败解决方案

    1. sudo apt update / sudo apt upgrade
    1. sudo apt install curl
    2. curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
    3. sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu disco stable"
    4. sudo apt install docker-ce
    1. sudo vim /etc/apt/sources.list 
    2. 下面的自行替换
    3. deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu disco stable