# 更新系统
sudo apt-get update
sudo apt-get upgrade -y

# 安装依赖
sudo apt-get install -y \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

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

# 添加 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 update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io

# 启动 Docker 服务
sudo systemctl start docker
sudo systemctl enable docker

# 验证安装
docker --version
docker run hello-world