Dockerfile

FROM python:3.10-slim

WORKDIR /app

RUN apt-get update && apt-get install -y \
    build-essential libglib2.0-0 libsm6 libxrender1 libxext6 \
    && rm -rf /var/lib/apt/lists/*

# copy everything in
COPY . .

# upgrade pip and install deps
RUN python -m pip install --upgrade pip \
 && pip install --no-cache-dir -r requirements.txt

# Hugging Face cache
RUN mkdir -p /app/hf_home && chmod -R 777 /app/hf_home
ENV HF_HOME=/app/hf_home

EXPOSE 7860
# IMPORTANT: 1 worker only, otherwise your global buffer breaks
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]