安装:
https://www.runoob.com/docker/ubuntu-docker-install.html
            
            
              bash
              
              
            
          
          sudo apt-get remove docker docker-engine docker.io containerd runc
sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common
curl -fsSL https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu/ \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io
apt-cache madison docker-ce
sudo apt-get install docker-ce=VERSION_STRING docker-ce-cli=VERSION_STRING containerd.io
sudo docker run hello-world
        换源:
注意,因为初始的域名不可访问,所有代理没有效果,只能换源!
            
            
              bash
              
              
            
          
          {
  "builder": {
    "gc": {
      "defaultKeepStorage": "20GB",
      "enabled": true
    }
  },
  "experimental": false,
  "registry-mirrors": [
    "https://docker.hpcloud.cloud",
    "https://docker.m.daocloud.io",
    "https://docker.unsee.tech",
    "https://docker.1panel.live",
    "http://mirrors.ustc.edu.cn",
    "https://docker.chenby.cn",
    "http://mirror.azure.cn",
    "https://dockerpull.org",
    "https://dockerhub.icu",
    "https://hub.rat.dev"
  ]
}
        