Book Image

Implementing DevOps with Ansible 2

By : Jonathan McAllister
Book Image

Implementing DevOps with Ansible 2

By: Jonathan McAllister

Overview of this book

Thinking about adapting the DevOps culture for your organization using a very simple, yet powerful automation tool, Ansible 2? Then this book is for you! In this book, you will start with the role of Ansible in the DevOps module, which covers fundamental DevOps practices and how Ansible is leveraged by DevOps organizations to implement consistent and simplified configuration management and deployment. You will then move on to the next module, Ansible with DevOps, where you will understand Ansible fundamentals and how Ansible Playbooks can be used for simple configuration management and deployment tasks. After simpler tasks, you will move on to the third module, Ansible Syntax and Playbook Development, where you will learn advanced configuration management implementations, and use Ansible Vault to secure top-secret information in your organization. In this module, you will also learn about popular DevOps tools and the support that Ansible provides for them (MYSQL, NGINX, APACHE and so on). The last module, Scaling Ansible for the enterprise, is where you will integrate Ansible with CI and CD solutions and provision Docker containers using Ansible. By the end of the book you will have learned to use Ansible to leverage your DevOps tasks.
Table of Contents (20 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Understanding Ansible Plugins and its Architecture


Ansible's implementation is highly modular. A modular architecture provides a high level of encapsulation (keeping concerns segregated and preventing them from cross-contaminating). The plugin solution within Ansible's subsystems is architected in order to keep additions organized and encapsulated. This architecture is divided into distinct subsystems. The most critical subsystems for Ansible plugins and modules and modules are defined as follows:

  • The Ansible Core modules
  • Ansible configs
  • Custom modules
  • The Ansible Python API

To better describe the vague list just provided, the following diagram provides an illustrated view of the Ansible architecture:

The preceding diagram highlights three of the most critical subsystems for Ansible plugin and module development. The Core Modules, the Custom Modules, and the Ansible Python API. This stack provides a comprehensive set of components for extending Ansible.

In Ansible, there are two distinct ways to...