content: # Use a lightweight Python image
  FROM python:3.10-slim
  
  # Set work directory
  WORKDIR /app
  
  # Install dependencies
  COPY requirements.txt .
  RUN pip install --no-cache-dir -r requirements.txt
  
  # Copy app code
  COPY app.py .
  
  # Set environment and port
  ENV PORT=5000
  EXPOSE 5000
  
  # Start the app
  CMD ["python", "app.py"]
  
  