Book Image

Learning Ansible 2 - Second Edition

Book Image

Learning Ansible 2 - Second Edition

Overview of this book

Ansible is an open source automation platform that assists organizations with tasks such as configuration management, application deployment, orchestration, and task automation. With Ansible, even complex tasks can be handled easier than before. In this book, you will learn about the fundamentals and practical aspects of Ansible 2 by diving deeply into topics such as installation (Linux, BSD, and Windows Support), playbooks, modules, various testing strategies, provisioning, deployment, and orchestration. In this book, you will get accustomed with the new features of Ansible 2 such as cleaner architecture, task blocks, playbook parsing, new execution strategy plugins, and modules. You will also learn how to integrate Ansible with cloud platforms such as AWS. The book ends with the enterprise versions of Ansible, Ansible Tower and Ansible Galaxy, where you will learn to interact Ansible with different OSes to speed up your work to previously unseen levels By the end of the book, you’ll able to leverage the Ansible parameters to create expeditious tasks for your organization by implementing the Ansible 2 techniques and paradigms.
Table of Contents (16 chapters)
Learning Ansible 2 Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

Chapter 3. Scaling to Multiple Hosts

In the previous chapters, we have specified the hosts in the command line. This worked fine while having a single host to work on, but will not work very well when managing multiple servers. In this chapter, we will see exactly how to manage multiple servers.

We'll explore the following topics:

  • Ansible inventories

  • Ansible host/group variables

  • Ansible loops