FROM python:3.12-slim

# Install a few basics (certs for HTTPS, curl for healthchecks/debug)
RUN apt-get update \
  && apt-get install -y --no-install-recommends ca-certificates curl \
  && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

COPY bgw210-700_prom_collector.py /app/bgw210-700_prom_collector.py

# Optional: run as a non-root user
RUN useradd -r -u 10001 appuser && chown -R appuser:appuser /app
USER appuser

EXPOSE 8000

# Defaults; Compose can override via environment/command
CMD ["python", "/app/bgw210-700_prom_collector.py", "--ip", "192.168.1.254", "--port", "8000"]