FROM python:3.13-slim

WORKDIR /app
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

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

COPY . .
RUN mkdir -p /app/instance

EXPOSE 8000
CMD ["gunicorn", "-w", "2", "-b", "0.0.0.0:8000", "wsgi:app"]
