FROM python:3.11-slim

WORKDIR /app

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

COPY . .

ENV PORT=7860
ENV PYTHONUNBUFFERED=1

EXPOSE 7860

# Use config file instead of command line args
# This supports ALL gunicorn options including keep_alive
CMD ["gunicorn", "-c", "gunicorn_config.py", "app:app"]