Now that you have your development environment set up, let’s get your production application server set up with Gunicorn on web-01, port 5000. You’ll need to install Gunicorn and any libraries required by your application. Your Flask application object will serve as a WSGI entry point into your application. This will be your production environment. As you can see we want the production and development of your application to use the same port, so the conditions for serving your dynamic content are the same in both environments.Requirements:Install Gunicorn and any other libraries required by your application.The Flask application object should be called app. (This will allow us to run and check your code)You will serve the same content from the same route as in the previous task. You can verify that it’s working by binding a Gunicorn instance to localhost listening on port 5000 with your application object as the entry point.In order to check your code, the checker will bind a Gunicorn instance to port 6000, so make sure nothing is listening on that port.

Here are the steps to set up your production application server with Gunicorn on web-01, port 5000:

1. Install Gunicorn: Gunicorn is a Python WSGI HTTP Server for UNIX. You can install it using pip, which is a package manager for Python. Use the following command to install Gunicorn:

   pip install gunicorn
   

2. Install Required Libraries: Depending on your application, you might need to install additional libraries. You can do this using pip. For example, if your application requires Flask, you can install it using:

   pip install flask
   

3. Create Flask Application Object: Your Flask application object should be named 'app'. Here is a basic example of how to create a Flask application:

   from flask import Flask
   app = Flask(__name__)
   
   @app.route('/')
   def hello_world():
       return 'Hello, World!'
   

   In this example, when you navigate to the root URL ('/') of your application, it will return 'Hello, World!'.

4. Run Gunicorn: Now that you have your Flask application, you can run it using Gunicorn. Use the following command to bind a Gunicorn instance to localhost listening on port 5000:

   gunicorn -w 4 -b localhost:5000 myapp:app
   

   In this command, '-w 4' specifies that there should be 4 worker processes and '-b localhost:5000' specifies that the server should listen on localhost port 5000. 'myapp:app' specifies that the application object is 'app' in the 'myapp' module.

5. Check Your Application: You can check that your application is running by navigating to 'http://localhost:5000' in your web browser. You should see the text 'Hello, World!'.

6. Prepare for Code Check: The checker will bind a Gunicorn instance to port 6000, so make sure nothing is listening on that port. You can do this by running the following command:

   lsof -i :6000
   

   If anything is listening on port 6000, you will need to stop it before the checker can check your code.

Remember to replace 'myapp' with the actual name of your Python module.