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

Basic Vault Usage


Ansible vault's most basic implementation is a simple AES Symmetric Key encryption solution (as we discussed earlier). The implementation of this is managed through the command-line interface, specifically the ansible-vault command. Using this command, we have the ability to encrypt, decrypt, rekey, and edit vault specific files. The syntax of each of these commands along with a description and example is provided next.

Encrypting an Ansible vault YAML file

This command syntax allows us to encrypt the contents of a YAML file. Upon executing, it will prompt the user for the key they wish to use in order to encrypt it.

The content of the my_vault.yml file is shown here:

integer: 25
string: "Hello Ansible Users"
float: 25.0
boolean: Yes

Then, in order to encrypt the file, execute the following command:

#> ansible-vault encrypt my_vault.yml

The output of the command execution is shown next:

New Vault password: 
Confirm New Vault password:
#>

Once the file is encrypted, we can...