Ubuntu 20.04下docker安装和添加阿里云服务器镜像和加速镜像

官方的docker安装文档

https://docs.docker.com/engine/install/ubuntu/

1. 先卸载旧版的docker

    sudo apt-get remove docker docker-engine docker.io containerd runc
   

2. 配置所需环境

    sudo apt-get update
   
    sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common
   

3. 开始安装docker的gpg密钥

    阿里云gpg：curl -fsSL http://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
   

4. 验证可用密钥：

    sudo apt-key fingerprint 0EBFCD88
   

5. 写入docker stable版本的阿里云镜像软件源

    sudo add-apt-repository "deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
   

6. 安装最新版的docker-ce

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

阿里云加速

sudo mkdir -p /etc/docker

sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": 这里需要你去阿里云注册获取,方法如下
}
EOF

sudo systemctl daemon-reload

sudo systemctl restart docker

https://cr.console.aliyun.com/cn-hangzhou/instances/mirrors