# ============================================================
#  Weibo-HotSign Frontend Dockerfile (Flask)
# ============================================================

FROM python:3.10-slim

WORKDIR /app

# 使用阿里云镜像加速 apt 和 pip
RUN sed -i 's|deb.debian.org|mirrors.aliyun.com|g' /etc/apt/sources.list.d/debian.sources 2>/dev/null || \
    sed -i 's|deb.debian.org|mirrors.aliyun.com|g' /etc/apt/sources.list 2>/dev/null || true

RUN apt-get update && apt-get install -y --no-install-recommends curl \
    && rm -rf /var/lib/apt/lists/*

# 设置时区为上海
ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

COPY requirements.txt .
RUN pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com -r requirements.txt

COPY . .

# 创建 flask_session 目录
RUN mkdir -p flask_session

RUN groupadd -r appuser && useradd -r -g appuser appuser \
    && chown -R appuser:appuser /app
USER appuser

EXPOSE 5000

HEALTHCHECK --interval=30s --timeout=10s --retries=3 \
    CMD curl -f http://localhost:5000/health || exit 1

CMD ["python", "app.py"]