Dockerfile

# Backend container — runs the FastAPI app in mock mode (CPU only, no GPU).
# Works on Hugging Face Spaces (Docker), Render, Fly.io, Railway, etc.
FROM python:3.11-slim

# System libs needed by OpenCV (headless) at import time.
RUN apt-get update && apt-get install -y --no-install-recommends \
      libgl1 libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

COPY backend/ ./

# Pre-render the catalog placeholder images at build time.
RUN python scripts/generate_catalog_images.py || true

ENV IMAGE_PROVIDER=mock \
    PYTHONUNBUFFERED=1

# Hugging Face Spaces uses 7860; Render/Fly inject $PORT. Default to 7860.
# --proxy-headers makes request-based asset URLs come out as https behind the host proxy.
EXPOSE 7860
CMD ["sh", "-c", "uvicorn app.main:app --host 0.0.0.0 --port ${PORT:-7860} --proxy-headers --forwarded-allow-ips='*'"]