cat > Dockerfile <<'EOF'
FROM python:3.11-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

RUN apt-get update && apt-get install -y --no-install-recommends \
    tesseract-ocr \
    libtesseract-dev \
    libimage-exiftool-perl \
    ca-certificates \
  && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

COPY main.py /app/main.py

CMD ["python", "/app/main.py"]
EOF