| FROM python:3.11-slim | |
| # HF Spaces requires non-root user with UID 1000 | |
| RUN useradd -m -u 1000 user | |
| USER user | |
| ENV PATH="/home/user/.local/bin:$PATH" | |
| WORKDIR /app | |
| # Install dependencies first (cache layer) | |
| COPY --chown=user backend/requirements.txt . | |
| RUN pip install --no-cache-dir -r requirements.txt | |
| # Bake the embedding model into the image so cold starts don't re-download (~570MB) | |
| RUN python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('BAAI/bge-m3')" | |
| # Copy backend source | |
| COPY --chown=user backend/ . | |
| # HF Spaces requires port 7860 | |
| EXPOSE 7860 | |
| CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"] | |