# Use a lightweight Python base image
FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Copy requirements file first (for efficient Docker caching)
COPY requirements.txt .

# Install dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application files
COPY . .

# Expose port (Flask default is 5000)
EXPOSE 5000

# Set environment variables
ENV PYTHONUNBUFFERED=1

# Run the Flask app
CMD ["python", "app.py"]