FROM python:3.11-slim

ENV PYTHONDONTWRITEBYTECODE=1         PYTHONUNBUFFERED=1

WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends build-essential && rm -rf /var/lib/apt/lists/*

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

COPY . .

ENV FLASK_APP=app.py
RUN mkdir -p instance && chmod +x docker/entrypoint.sh

HEALTHCHECK --interval=30s --timeout=5s --retries=3 CMD python -c "import requests; requests.get('http://127.0.0.1:5000/realtime/health', timeout=3).raise_for_status()"

CMD ["docker/entrypoint.sh"]