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

Chapter 6. Jinja in Ansible

JINJA was created in 2008 by Armin Ronacher and aims to replace similar template engines with a more modern and structured solution. Jinja was designed for Python (the programming language that Ansible was created with) and, coupled with Ansible, to provide a framework that integrates seamlessly with YAML. Ansible's YAML implementation and programmatic playbook solution incorporates this robust Jinja template engine. Like many other template solutions (Django, Smarty, and so on), Jinja was designed to provide structural support for reusable text with context specific alterations (environments, hosts, and so on) and comprehensive functionality that developers have come to rely on.

For those who have experience with Smarty or Django-styled tempting solutions, Jinja will indeed be familiar. The design of the Jinja template solution aims to provide support for designers, developers, and operators alike by providing the ability to add conditional logic, iterative behaviors...