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 2. Introduction to Ansible

This chapter will serve as a high-level overview of Ansible 2.0 and components that make up this open source configuration management tool. We will cover the definition of the Ansible components and their typical use. Also, we will discuss how to define variables for the roles and defining/setting facts about the hosts for the playbooks. Next, we will transition into how to set up your Ansible environment and the ways you can define the host inventory used to run your playbooks against. We will then cover some of the new components introduced in Ansible 2.0 named Blocks and Strategies. We will also discuss the cloud modules natively part of the Ansible framework. Finally, the chapter will finish up with a working example of a playbook that will confirm the required host connectivity needed to use Ansible. The following topics will be covered:

  • Ansible 2.0 overview.

  • What are playbooks, roles, and modules?

  • Setting up the environment.

  • Variables and facts.

  • Defining...