首先移除所有错误的 Docker 软件源:
sudo rm -f /etc/apt/sources.list.d/docker*
安装必要依赖
sudo apt update
sudo apt install -y ca-certificates curl gnupg
添加 Docker 官方 GPG 密钥(使用国内镜像):
curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/debian/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
添加正确的 Debian 软件源
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://mirrors.aliyun.com/docker-ce/linux/debian bullseye stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
更新软件包列表并安装 Docker
sudo apt update
sudo apt install -y docker-ce docker-ce-cli containerd.io
启动Docker服务并设置开机启动
sudo systemctl start docker
sudo systemctl enable docker
验证安装
docker --version