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

Chapter 6. Migrating Instances

In this chapter, we will cover the task of migrating instances using the native OpenStack capability built into the Compute service (Nova). As mentioned earlier the existence of this functionality is unknown by many. In this chapter, we will prove out this capability by demonstrating how to manually migrate instances. As well as, review the steps required to automate this task and finally create a playbook with roles to fully automate instance migration to a specified compute node.

This chapter will cover the following topics:

  • Instance migration

  • Automation considerations

  • Coding the playbook and roles

  • Playbook and role review