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

Ansible Roles


Ansible works very well with supporting a single-file 10,000-line long playbook (please don't actually do that). However, when playbook's grow out of control, Ansible provides a very nice way to break automation into multiple files (as illustrated before using includes). Yet, as we start to grow the number of files we need to include, things can become hairy to manage and maintain. So what is an Ansible developer to do? Roles to the rescue! Ansible roles provide us with a really unique way of dividing out our automation into uniquely defined responsibilities.

In addition to providing configuration management modularization, Ansible roles provide us with a best-practice approach to organizing automation within a playbook and developing reusable solutions. The Ansible roles implementation simply represents an automated, well-structured implementation of an Ansible includes solution (which we discussed in the previous section). This means that the include directives are already...