FROM python:3.12-slim

RUN useradd --create-home --shell /usr/sbin/nologin agent

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

COPY app ./app

ENV PYTHONUNBUFFERED=1 \
    AGENT_DATA_DIR=/data

RUN mkdir -p /data && chown agent:agent /data
USER agent

EXPOSE 9090
VOLUME ["/data"]

HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
    CMD ["python", "-c", "import urllib.request; urllib.request.urlopen('http://127.0.0.1:9090/api/health', timeout=3)"]

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "9090"]