Book Image

OpenStack Administration with Ansible

By : Walter Bentley
Book Image

OpenStack Administration with Ansible

By: Walter Bentley

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. 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—Ansible. We will start with a brief overview of OpenStack and Ansible and highlight some best practices. Each chapter will provide an introduction to handling various Cloud Operator administration tasks such as creating multiple users/tenants, setting up Multi-Tenant Isolation, customizing your clouds quotas, taking instance snapshots, evacuating compute hosts for maintenance, and running cloud health checks, and a step-by-step tutorial on how to automate these tasks with Ansible.
Table of Contents (18 chapters)
OpenStack Administration with Ansible
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Preface
Index

Automation considerations


This task also did not require any new framework decisions. All the other automation decisions we reviewed previously and carried over.

Before we start, it is worth noting that when automating a task, such as this one, (migrating an instance and disabling compute nodes) it is best to collect the details concerning them both before and after the migration. Having those details will simplify the process of reversing your changes, if required. Yes, this will add additional tasks to your role making it slightly more complex but still well worth it.

With that said, we are now ready to proceed to create our next playbook and role.