FROM python:3.12-slim

# cairosvg braucht die Cairo-Bibliothek zum Rastern (PNG/JPG)
RUN apt-get update \
 && apt-get install -y --no-install-recommends libcairo2 \
 && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
COPY qrgen.py app.py ./
COPY config ./config

EXPOSE 8000
CMD ["gunicorn", "-b", "0.0.0.0:8000", "-w", "2", "--timeout", "60", "app:app"]
