FROM python:3.9-slim

# Set the working directory inside the container
WORKDIR /app

# Copy all files from the current directory to the container's working directory
COPY . .

# Install dependencies from the requirements file without using cache to reduce image size
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Define the command to start the application using Gunicorn with 4 worker processes
# - -w 4: Uses 4 worker processes for handling requests
# - -b 0.0.0.0:7860: Binds the server to port 7860 on all network interfaces
# - pp:app: Runs the Flask app (assuming pp.py contains the Flask instance named pp)
CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:7860", "app:rental_price_predictor_api"]