Ubuntu修改阿里源并安装docker

1. 修改阿里源

   cd /etc/apt
   cp sources.list sources.list.bak
   rm sources.list
   vim sources.list
   
   
   deb https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
   deb-src https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
   
   deb https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
   deb-src https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
   
   deb https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
   deb-src https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
   
   # deb https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
   # deb-src https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
   
   deb https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
   deb-src https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
   
   

2. 删除旧docker

   更新atp
   sudo apt-get update
   
   删除旧docker
   sudo apt-get remove docker docker-engine docker.io containerd runc
   
   安装依赖包
   sudo apt-get -y install apt-transport-https ca-certificates curl software-properties-common
   
   安装证书
   curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
   
   验证
   sudo apt-key fingerprint 0EBFCD88
   
   设置稳定仓库
   sudo add-apt-repository "deb [arch=amd64] https://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
   

3. 安装新docker

   
   sudo apt-get install docker-ce docker-ce-cli containerd.io