Dockerfile

FROM python:3.11-slim

# Install system deps
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Install Python deps
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application
COPY main.py .
COPY campaign_service.py .

# HF Spaces requires port 7860
EXPOSE 7860

HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:7860/health')"

CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]