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OpenStack Administration with Ansible 2

You're reading from OpenStack Administration with Ansible 2 Automate and monitor administrative tasks

Product type Paperback

Published in Dec 2016

Publisher Packt

ISBN-13 9781787121638

Length 230 pages

Edition 2nd Edition

Tools

Ansible

Concepts

Cloud Computing

Author (1):

Walter Bentley

View More author details

Table of Contents (11) Chapters

Preface

1. Introduction to OpenStack

2. Introduction to Ansible FREE CHAPTER

3. Creating Multiple Users/Projects

4. Customizing Your Clouds Quotas

5. Snapshot Your Cloud

6. Migrating Instances

7. Managing Containers on Your Cloud

8. Setting Up Active-Active Regions

9. Inventory Your Cloud

10. Health Check Your Cloud with Nagios

Instance migration

Whenever the topic of instance migration comes up, it normally ends in a spirited conversation among my OpenStack peers for various reasons. So as a responsible adult, I will go on recording and say that instance migration is not perfect.

It has its flaws and can be quirky at best. Migration, whether live or not, does have a practical use case to your OpenStack cloud. Within OpenStack, you have the capability of migrating instances from one compute node to another. Some of the reasons you may do this is for maintenance purposes and/or to rebalance resource utilization across the cloud. Also, keep in mind that there are multiple ways to clear out a compute node for maintenance and we will cover that in more detail in Chapter 8, Setup Active-Active Regions.

Note

As mentioned earlier, the OpenStack Compute service (Nova) has the functionality to migrate instances in a traditional method and the ability to live-migrate an instance as well.

We will first examine the traditional...

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Authors (1)

Walter Bentley

Walter Bentley

Walter Bentley is a Rackspace Private Cloud Technical Marketing Engineer and author with a diverse background in production systems administration and solutions architecture. He has more than 15 years of experience in sectors such as online marketing, financial, insurance, aviation, the food industry, education, and now in technology. In the past, he was typically the requestor, consumer, and advisor to companies in the use of technologies such as OpenStack. Today, hes an OpenStack promoter and cloud educator. In his current role, Walter helps customers build, design, and deploy private clouds built on OpenStack. That includes professional services engagements around operating OpenStack clouds and DevOps engagements creating playbooks/roles with Ansible. He presents and speaks regularly at OpenStack Summits, AnsibleFest, and other technology conferences, plus webinars, blog posts and technical reviews. His first book, OpenStack Administration with Ansible, was released in 2016.

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