Book Image

OpenStack Administration with Ansible 2 - Second Edition

Book Image

OpenStack Administration with Ansible 2 - Second Edition

Overview of this book

Most organizations are seeking methods to improve business agility because they have realized just having a cloud is not enough. Being able to improve application deployments, reduce infrastructure downtime, and eliminate daily manual tasks can only be accomplished through some sort of automation. We start with a brief overview of OpenStack and Ansible 2 and highlight some best practices. Each chapter will provide an introduction to handling various Cloud Operator administration tasks such as managing containers within your cloud; setting up/utilizing open source packages for monitoring; creating multiple users/tenants; taking instance snapshots; and customizing your cloud to run multiple active regions. Each chapter will also supply a step-by-step tutorial on how to automate these tasks with Ansible 2. Packed with real-world OpenStack administrative tasks, this book will walk you through working examples and explain how these tasks can be automated using one of the most popular open source automation tools on the market today.
Table of Contents (17 chapters)
OpenStack Administration with Ansible 2 Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Automation considerations


When creating this role, there was only one automation decision that I had to make outside of the ones we covered in the previous chapter. All the other considerations carried over.

Because the Nova quota commands allow numerous options to be passed with no interdependencies, we have to figure out a way to not restrict that flexibility in the role and at the same time not require constant updates directly to the role. Ansible makes such a decision really easy by allowing variables to be passed as a hash. Within the variable file, you can then define the options for each project or user and have the task cycle through each project/user with those options.

I promise this is the last time I will make this disclaimer, but I felt that it is important to emphasize:

Note

There are many ways to approach automating tasks for OpenStack with Ansible, the ones shown in this book is just one way I personally have found success with and most certainly not the only way. The playbooks...