Dockerfile

FROM python:3.10-slim

# Add a non-root user
RUN useradd -m -u 1000 user

WORKDIR /app

# Copy and install dependencies as that user
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY --chown=user . .

# Prepare a place to unzip your Zarr
RUN mkdir -p /app/unzipped_zarr && chown -R user:user /app/unzipped_zarr

# Enable HF Hub proxy mode
ENV HF_HUB_ENABLE=1
ENV HF_HUB_ENABLE_PROXY=1

# Expose the port Hugging Face Spaces expects
EXPOSE 7860

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