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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 Test-Driven Development

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Product type Paperback
Published in Aug 2018
Publisher Packt
ISBN-13 9781789135992
Length 466 pages
Edition 2nd 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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Toc

Table of Contents (15) Chapters Close

Preface 1. Review of TCP/IP Protocol Suite and Python FREE CHAPTER 2. Low-Level Network Device Interactions 3. APIs and Intent-Driven Networking 4. The Python Automation Framework – Ansible Basics 5. The Python Automation Framework – Beyond Basics 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. AWS Cloud Networking 11. Working with Git 12. Continuous Integration with Jenkins 13. Test-Driven Development for Networks 14. Other Books You May Enjoy

Ansible loops

Ansible provides a number of loops in the playbook, such as standard loops, looping over files, subelements, do-until, and many more. In this section, we will look at two of the most commonly used loop forms: standard loops and looping over hash values.

Standard loops

Standard loops in playbooks are often used to easily perform similar tasks multiple times. The syntax for standard loops is very easy: the {{ item }} variable is the placeholder looping over the with_items list. For example, take a look at the following section in the chapter5_4.yml playbook:

      tasks:
- name: echo loop items
command: echo {{ item }}
with_items: ['r1', 'r2', 'r3', 'r4...
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