FROM python:3.11-slim

WORKDIR /app

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

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY . .
ENV FLASK_APP=run.py
ENV PORT=8052
EXPOSE 8052

CMD ["gunicorn", "--worker-class", "eventlet", "-w", "1", "-b", "0.0.0.0:8052", "run:app"]