FROM python:3.11-slim

RUN pip install --no-cache-dir \
    torch==2.5.1 --index-url https://download.pytorch.org/whl/cpu \
    && pip install --no-cache-dir \
    transformers==4.51.3 \
    safetensors \
    accelerate \
    fastapi==0.115.12 \
    uvicorn[standard]==0.34.2

RUN useradd -m -u 1000 appuser

COPY --chown=1000:1000 server.py /app/server.py

USER appuser
ENV MODEL_DIR=nmysore/seng-model
EXPOSE 7860

CMD ["uvicorn", "server:app", "--host", "0.0.0.0", "--port", "7860", "--app-dir", "/app"]