FROM python:3.11-slim

RUN apt-get update && apt-get install -y --no-install-recommends ffmpeg && rm -rf /var/lib/apt/lists/*

# CPU-only torch keeps image ~500MB vs ~2GB for CUDA
RUN pip install --no-cache-dir torch --index-url https://download.pytorch.org/whl/cpu
RUN pip install --no-cache-dir fastapi uvicorn scipy numpy pydub omegaconf

WORKDIR /app
COPY server.py .

ENV TORCH_HOME=/cache/torch

EXPOSE 8881
CMD ["uvicorn", "server:app", "--host", "0.0.0.0", "--port", "8881"]