Book Image

Mastering Python Networking - Third Edition

By : Eric Chou
Book Image

Mastering Python Networking - Third Edition

By: Eric Chou

Overview of this book

Networks in your infrastructure set the foundation for how your application can be deployed, maintained, and serviced. Python is the ideal language for network engineers to explore tools that were previously available to systems engineers and application developers. In Mastering Python Networking, Third edition, you’ll embark on a Python-based journey to transition from traditional network engineers to network developers ready for the next-generation of networks. This new edition is completely revised and updated to work with Python 3. In addition to new chapters on network data analysis with ELK stack (Elasticsearch, Logstash, Kibana, and Beats) and Azure Cloud Networking, it includes updates on using newer libraries such as pyATS and Nornir, as well as Ansible 2.8. Each chapter is updated with the latest libraries with working examples to ensure compatibility and understanding of the concepts. Starting with a basic overview of Python, the book teaches you how it can interact with both legacy and API-enabled network devices. You will learn to leverage high-level Python packages and frameworks to perform network automation tasks, monitoring, management, and enhanced network security followed by Azure and AWS Cloud networking. Finally, you will use Jenkins for continuous integration as well as testing tools to verify your network.
Table of Contents (18 chapters)
Other Books You May Enjoy

Jenkins example

In this section, we will take a look at a few Jenkins examples and how they tie into the various technologies we have covered in this book. The reason Jenkins is covered in one of the last chapters of this book is because it leverages many of the other tools we have covered, such as our Python script, Ansible, Git, and GitHub. Feel free to refer back to any of the previous chapters for different topics if needed.

In the examples, we will use the Jenkins master to execute our jobs. In production, it is recommended to add Jenkins agent nodes to handle the execution of jobs.

For our lab, we will use a simple two-node topology with IOSv devices:

Figure 4: Lab topology

Let's build our first job.

The first job for the Python script

For our first job, let's use the Paramiko script that we built in Chapter 2, Low-Level Network Device Interactions, If you recall, this is a script that uses Paramiko to SSH to...