Book Image

Puppet 5 Essentials - Third Edition

By : Felix Frank
Book Image

Puppet 5 Essentials - Third Edition

By: Felix Frank

Overview of this book

Puppet is a configuration management tool that allows you to automate all your IT configurations, giving you control over what you do to each Puppet Agent in a network, and when and how you do it. In this age of digital delivery and ubiquitous Internet presence, it's becoming increasingly important to implement scaleable and portable solutions, not only in terms of software, but also the system that runs it. This book gets you started quickly with Puppet and its tools in the right way. It highlights improvements in Puppet and provides solutions for upgrading. It starts with a quick introduction to Puppet in order to quickly get your IT automation platform in place. Then you learn about the Puppet Agent and its installation and configuration along with Puppet Server and its scaling options. The book adopts an innovative structure and approach, and Puppet is explained with flexible use cases that empower you to manage complex infrastructures easily. Finally, the book will take readers through Puppet and its companion tools such as Facter, Hiera, and R10k and how to make use of tool chains.
Table of Contents (10 chapters)

The Puppet Beginners Advanced Parts

After our in-depth discussions on both the manifest structure elements (class and define) and encompassing structure (modules), you are in a great position to write manifests for all of your agents. Make sure that you get Forge modules that will allow them to do your work for you. Then go ahead and add site-specific modules that implement Forge modules to your needs. Finally, you will have composite classes for the node blocks to be used, or rather, included.

These concepts are quite a bit to take in. It's now time to decelerate a bit, lean back, and tackle simpler code structures and ideas. You are about to learn some techniques that you are not going to need every day. They can make difficult scenarios much easier, though. So, it might be a good idea to come back to this chapter again after you have spent some time in the field. You might...