Book Image

Mastering Ansible, 4th Edition - Fourth Edition

By : James Freeman, Jesse Keating
Book Image

Mastering Ansible, 4th Edition - Fourth Edition

By: James Freeman, Jesse Keating

Overview of this book

Ansible is a modern, YAML-based automation tool (built on top of Python, one of the world’s most popular programming languages) with a massive and ever-growing user base. Its popularity and Python underpinnings make it essential learning for all in the DevOps space. This fourth edition of Mastering Ansible provides complete coverage of Ansible automation, from the design and architecture of the tool and basic automation with playbooks to writing and debugging your own Python-based extensions. You'll learn how to build automation workflows with Ansible’s extensive built-in library of collections, modules, and plugins. You'll then look at extending the modules and plugins with Python-based code and even build your own collections — ultimately learning how to give back to the Ansible community. By the end of this Ansible book, you'll be confident in all aspects of Ansible automation, from the fundamentals of playbook design to getting under the hood and extending and adapting Ansible to solve new automation challenges.
Table of Contents (18 chapters)
Section 1: Ansible Overview and Fundamentals
Section 2: Writing and Troubleshooting Ansible Playbooks
Section 3: Orchestration with Ansible


Ansible is a great tool; however, sometimes, it doesn't offer all the functionality you might desire. Not every bit of functionality is appropriate to submit to the ansible-core project, nor is it possible to provide bespoke integration with custom proprietary data sources, as these would be different in every case. As a result, there are many facilities within Ansible to extend its functionality. Creating and using custom modules is made easy by the shared module base code. Many different types of plugins can be created and used with Ansible to affect operations in a variety of ways. Inventory sources beyond those provided with the Ansible release collections can still be used with relative ease and efficiency.

In this chapter, you learned about developing modules and including them in your playbooks. You then learned about extending Ansible through plugins, and we went into specific details about creating dynamic inventory plugins. Finally, you learned how to contribute...