下载Docker的gpg密钥
下载Docker的官方密钥
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
出现OK回复才是下载完成
如果上面的命令报错，那么使用国内镜像源
curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
查看已经下载的gpg密钥
进入密钥保存的目录
cd /etc/apt/keyrings
查看该目录下的所有文件
ls
退出该目录
cd /
设置Docker仓库
设置Docker仓库
echo
"deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
安装Docker
sudo apt-get install docker-ce docker-ce-cli containerd.io
