Dockerfile

FROM python:3.11-slim

# Install system ffmpeg
RUN apt-get update && \
    apt-get install -y --no-install-recommends ffmpeg && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

# Create a non-root user (HF Spaces requirement)
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

WORKDIR /home/user/app

# Install Python dependencies
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy application files
COPY --chown=user app.py .
COPY --chown=user templates/ templates/

# Create working directories under /tmp (writable in HF Spaces)
RUN mkdir -p /tmp/uploads /tmp/processed

EXPOSE 7860

CMD ["gunicorn", "-b", "0.0.0.0:7860", "--timeout", "120", "app:app"]