Dockerfile

FROM python:3.9-slim

RUN apt-get update && apt-get install -y \
    libgl1 \
    libglib2.0-0 \
    wget \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

RUN mkdir -p /app/weights && \
    wget https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.5.0/realesr-general-x4v3.pth -P /app/weights

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

COPY app.py .

EXPOSE 5000
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--timeout", "600", "app:app"]