Book Image

Python Network Programming Techniques

By : Marcel Neidinger
Book Image

Python Network Programming Techniques

By: Marcel Neidinger

Overview of this book

Network automation offers a powerful new way of changing your infrastructure network. Gone are the days of manually logging on to different devices to type the same configuration commands over and over again. With this book, you'll find out how you can automate your network infrastructure using Python. You'll get started on your network automation journey with a hands-on introduction to the network programming basics to complement your infrastructure knowledge. You'll learn how to tackle different aspects of network automation using Python programming and a variety of open source libraries. In the book, you'll learn everything from templating, testing, and deploying your configuration on a device-by-device basis to using high-level REST APIs to manage your cloud-based infrastructure. Finally, you'll see how to automate network security with Cisco’s Firepower APIs. By the end of this Python network programming book, you'll have not only gained a holistic overview of the different methods to automate the configuration and maintenance of network devices, but also learned how to automate simple to complex networking tasks and overcome common network programming challenges.
Table of Contents (14 chapters)

Deleting access rules

The final capability we are looking for is how we can automate housekeeping tasks such as finding and deleting outdated rules. We have already covered finding a rule by retrieving all of the rules and iterating over their details in previous chapters, so this recipe will show you how you can delete an existing access rule.

Getting ready

Open your code editor and start by creating a file called delete_access_rules.py. Next, navigate in your terminal to the same directory in which you just created the delete_access_rules.py file.

How to do it…

Follow these steps to delete an existing access rule for your access policy:

  1. Import the required requests library as well as the json and sys modules from the standard library:
    import requests
    import json
    import sys
    from requests.auth import HTTPBasicAuth
  2. Specify the required variables such as your username, password, domain ID, and the ID of the policy, as well as the ID of the rule we want...