FROM node:18-bullseye-slim

# 安装iproute2
RUN apt-get update && \
    apt-get install -y --no-install-recommends iproute2 && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

# 创建非root用户
RUN useradd -m appuser
USER appuser

WORKDIR /app

# 复制项目文件和依赖
COPY --chown=appuser:appuser package*.json ./
COPY --chown=appuser:appuser node_modules ./node_modules
COPY --chown=appuser:appuser . .

# 暴露应用端口（host模式下实际使用宿主机端口）
EXPOSE 9900

# 启动命令
CMD ["npm", "start"]