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

Summary


Crossing the finish line does feel nice for sure. I am hoping that the raw power of multi-tenant isolation was explained and demonstrated in this chapter. Always feels good to have options, in order to meet your cloud consumer demands. Before concluding this chapter, let's take a moment to recap this chapter:

  • We explained what multi-tenant isolation and possible use cases within OpenStack

  • We stepped through the setup process for multi-tenant isolation

  • We demonstrated the tenant configurations needed after multi-tenant isolation is enabled on your cloud

  • We developed an Ansible playbook and role to automate migrating an instance to a specific compute node using the nova migrate command

The next chapter also will be a very interesting one, as a cloud operator you will have hypervisor failures and will have to do maintenance, eventually. In order to successfully handle both of those tasks, you will have to evacuate instances from your compute nodes. Of course, you can do this manually, but...