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| FROM python:3.11-slim | |
| # non-root user (HF Spaces convention; writable HOME for the HF cache the model | |
| # is pulled into at boot). | |
| RUN useradd -m -u 1000 user | |
| USER user | |
| ENV HOME=/home/user \ | |
| PATH=/home/user/.local/bin:$PATH \ | |
| HF_HOME=/home/user/.cache/huggingface \ | |
| PYTHONUNBUFFERED=1 \ | |
| TMPDIR=/tmp | |
| WORKDIR /home/user/app | |
| # CPU-only torch (the default PyPI wheel is CUDA and huge). | |
| RUN pip install --no-cache-dir --user torch --index-url https://download.pytorch.org/whl/cpu | |
| COPY --chown=user requirements.txt . | |
| RUN pip install --no-cache-dir --user -r requirements.txt | |
| COPY --chown=user . . | |
| EXPOSE 7860 | |
| # One worker (single shared model), threads for concurrent requests. No --preload: | |
| # the worker pulls + loads the model in its own process (avoids the torch/OpenMP | |
| # fork deadlock). --timeout 0 keeps the first-boot model download from tripping | |
| # the worker timeout. | |
| CMD ["gunicorn", "-w", "1", "--threads", "8", "-k", "gthread", "-b", "0.0.0.0:7860", "--timeout", "0", "app:app"] | |