FROM python:3.14-slim
WORKDIR /app
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
COPY . .
# Expose dynamic port
EXPOSE 8798

# Healthcheck
HEALTHCHECK CMD python -c "import requests; r=requests.get('http://localhost:${FLASK_PORT:-8798}',timeout=5);exit(0 if r.ok else 1)" || exit 1

ENV FLASK_PORT=${FLASK_PORT:-8798}
CMD ["sh", "-c", "gunicorn -k geventwebsocket.gunicorn.workers.GeventWebSocketWorker -w 1 --threads 16 --bind 0.0.0.0:$FLASK_PORT --timeout 60 app:app"]