FROM python:3.11-slim

RUN useradd -m -u 1000 user

WORKDIR /home/user/app

# Install dependencies
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt \
    --extra-index-url https://download.pytorch.org/whl/cpu

# Copy application code
COPY --chown=user *.py .

RUN mkdir -p /home/user/app/checkpoints && chown user:user /home/user/app/checkpoints

USER user
ENV HOME=/home/user

EXPOSE 7860

CMD ["python", "server.py"]