FROM python:3.10-slim

WORKDIR /app

RUN apt-get update && apt-get install -y \
    build-essential \
    libjpeg-dev \
    zlib1g-dev \
    && rm -rf /var/lib/apt/lists/*

# CPU-only torch
RUN pip install --no-cache-dir \
    torch==2.2.2+cpu \
    torchvision==0.17.2+cpu \
    --index-url https://download.pytorch.org/whl/cpu

COPY requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir -r /app/requirements.txt

COPY . /app

EXPOSE 7860

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