| FROM python:3.11-slim | |
| # Install system dependencies needed by RDKit | |
| RUN apt-get update && apt-get install -y \ | |
| libxrender1 \ | |
| libxext6 \ | |
| && rm -rf /var/lib/apt/lists/* | |
| WORKDIR /app | |
| # Copy and install Python dependencies | |
| COPY backend/requirements.txt . | |
| RUN pip install --no-cache-dir -r requirements.txt | |
| # Copy backend source | |
| COPY backend/ . | |
| # Expose port (7860 for HF Spaces, 8000 for Railway via PORT env var) | |
| EXPOSE 7860 | |
| # Start FastAPI — use $PORT if set (Railway sets 8000), otherwise 7860 (HF Spaces default) | |
| CMD ["sh", "-c", "uvicorn main:app --host 0.0.0.0 --port ${PORT:-7860}"] | |