FROM python:3.9-slim
WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
COPY main.py .
# Drop root privileges
RUN adduser --disabled-password --gecos '' appuser
USER appuser

CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8003"]