FROM python:3.11-slim

WORKDIR /app

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

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

COPY . .

RUN useradd --no-create-home --shell /usr/sbin/nologin --uid 1001 nlp \
    && chown -R nlp:nlp /app

USER nlp

EXPOSE 8001

HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
    CMD curl -f http://localhost:8001/health || exit 1

CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8001"]
