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Mastering Python Networking

You're reading from   Mastering Python Networking Your one stop solution to using Python for network automation, DevOps, and SDN

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Product type Paperback
Published in Jun 2017
Publisher Packt
ISBN-13 9781784397005
Length 446 pages
Edition 1st Edition
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Author (1):
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Eric Chou Eric Chou
Author Profile Icon Eric Chou
Eric Chou
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Table of Contents (14) Chapters Close

Preface 1. Review of TCP/IP Protocol Suite and Python Language 2. Low-Level Network Device Interactions FREE CHAPTER 3. API and Intent-Driven Networking 4. The Python Automation Framework - Ansible Basics 5. The Python Automation Framework - Ansible Advance Topics 6. Network Security with Python 7. Network Monitoring with Python - Part 1 8. Network Monitoring with Python - Part 2 9. Building Network Web Services with Python 10. OpenFlow Basics 11. Advanced OpenFlow Topics 12. OpenStack, OpenDaylight, and NFV 13. Hybrid SDN

The Ansible include and roles


The best way to handle complex tasks is to break it down into smaller pieces. This approach is common in both Python and network engineering, of course. In Python, we break complicated code into functions, classes, modules, and packages. In Networking, we also break large networks into sections such as racks, rows, clusters, and datacenters. In Ansible, uses roles and includes to segment and organize a large playbook into multiple files. Breaking up a large Ansible playbook simplifies the structure as each of file focuses on fewer tasks. It also allows the sections of the playbook easier to be reused.

The Ansible include statement

As the playbook grows in size, it will eventually become obvious that many of the tasks and playbooks can be shared across different playbooks. The Ansible include statement is similar to many Linux configuration files that just tell the machine to extend the file the same way as if the file was directly written in. We can do an include...

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