# Multi-stage build for OCI GenAI to OpenAI API Gateway
FROM python:3.11-slim AS builder

# 设置工作目录
WORKDIR /app

# 安装系统依赖
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    && rm -rf /var/lib/apt/lists/*

# 复制依赖文件
COPY requirements.txt .

# 安装 Python 依赖
RUN pip install --no-cache-dir --user -r requirements.txt

# 最终镜像
FROM python:3.11-slim

# 设置环境变量
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PATH=/root/.local/bin:$PATH \
    PYTHONPATH=/app/src

# 设置工作目录
WORKDIR /app

# 复制 Python 依赖
COPY --from=builder /root/.local /root/.local

# 复制应用代码
COPY src/ ./src/
COPY .env.example .env

# 创建日志目录
RUN mkdir -p /app/logs

# 暴露端口
EXPOSE 8000

# 健康检查
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health').read()"

# 启动应用
CMD ["python", "-m", "uvicorn", "src.main:app", "--host", "0.0.0.0", "--port", "8000"]