FROM python:3.12-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    MODEL_DIR=/app/model

WORKDIR /app/model

COPY requirements.txt requirements-server.txt ./
RUN pip install --no-cache-dir -r requirements.txt -r requirements-server.txt \
    && useradd --create-home --uid 10001 --shell /usr/sbin/nologin modeluser

COPY --chown=modeluser:modeluser . ./

USER modeluser
EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=5s --start-period=120s --retries=3 \
  CMD python -c "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/ready', timeout=3)"

CMD ["uvicorn", "server:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1", "--proxy-headers", "--forwarded-allow-ips", "*"]