Debian安装docker

删除旧版（新机可忽略）

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

设置docker本地仓库

apt-get update
apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

添加docker官方的GPG密钥

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

设置使用稳定版的包（带有docker稳定版的apt仓库）

echo \
"deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://mirrors.aliyun.com/docker-ce/linux/debian \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

安装docker CE

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

这里的apt-get update必不可少！它用于更新apt的源，否则会报下面的错误：

Package docker-ce is not available, but is referred to by another package