Dockerfile

# Use a small CUDA image if you plan to request GPU; CPU also works.
FROM python:3.11-slim

# Create non-root user (required by Spaces Docker) and prepare workdir
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user PATH=/home/user/.local/bin:$PATH
WORKDIR $HOME/app

# Copy files
COPY --chown=user requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

COPY --chown=user app.py ./

# Spaces expects your app to listen on port 7860 unless overridden in README yaml
ENV PORT=7860
EXPOSE 7860

# Run FastAPI
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]