FROM python:3.12-slim

# 时区：装 tzdata + 设 Asia/Shanghai，使 datetime.now() 取北京时间（修复操作日志等时间偏 8 小时）
ENV TZ=Asia/Shanghai
RUN apt-get update && apt-get install -y --no-install-recommends tzdata && rm -rf /var/lib/apt/lists/*

WORKDIR /app
ENV PYTHONUNBUFFERED=1 PYTHONDONTWRITEBYTECODE=1

# 系统依赖（PyMySQL 纯 Python，无需客户端库；保留常用工具）
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY . .

EXPOSE 8000
CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:8000", "--access-logfile", "-", "--error-logfile", "-", "wsgi:app"]