# ======================
# Build Stage（含 gcc）
# ======================
FROM python:3.10.16-slim AS builder

RUN sed -i 's|deb.debian.org|mirrors.tuna.tsinghua.edu.cn|g' /etc/apt/sources.list.d/debian.sources \
 && sed -i 's|security.debian.org|mirrors.tuna.tsinghua.edu.cn|g' /etc/apt/sources.list.d/debian.sources

RUN apt-get update \
 && apt-get install -y --no-install-recommends \
    gcc g++ unixodbc-dev default-libmysqlclient-dev \
 && rm -rf /var/lib/apt/lists/*

WORKDIR /build
COPY requirements.txt .

# 安装依赖到 /python_install
RUN pip install --no-cache-dir --prefix=/python_install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple


# ======================
# Runtime Stage（无 gcc）
# ======================
FROM python:3.10.16-slim

WORKDIR /app

# 只复制依赖(已编译好)
COPY --from=builder /python_install /usr/local

# 复制代码
COPY . .

RUN mkdir -p /opt/alert/model-lab \
 && cp /app/config.py /opt/alert/model-lab/config.py

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