Book Image

Puppet 4.10 Beginner's Guide - Second Edition

By : John Arundel
Book Image

Puppet 4.10 Beginner's Guide - Second Edition

By: John Arundel

Overview of this book

Puppet 4.10 Beginner’s Guide, Second Edition, gets you up and running with the very latest features of Puppet 4.10, including Docker containers, Hiera data, and Amazon AWS cloud orchestration. Go from beginner to confident Puppet user with a series of clear, practical examples to help you manage every aspect of your server setup. Whether you’re a developer, a system administrator, or you are simply curious about Puppet, you’ll learn Puppet skills that you can put into practice right away. With practical steps giving you the key concepts you need, this book teaches you how to install packages and config files, create users, set up scheduled jobs, provision cloud instances, build containers, and so much more. Every example in this book deals with something real and practical that you’re likely to need in your work, and you’ll see the complete Puppet code that makes it happen, along with step-by-step instructions for what to type and what output you’ll see. All the examples are available in a GitHub repo for you to download and adapt for your own server setup.
Table of Contents (20 chapters)
Puppet 4.10 Beginner's Guide Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
Index

Summary


We've explored Puppet's file resource in detail, covering file sources, ownership, permissions, directories, symbolic links, and file trees. We've learned how to manage packages by installing specific versions, or the latest version, and how to uninstall packages. We've covered Ruby gems, both in the system context and Puppet's internal context. Along the way, we met the very useful puppet-lint tool.

We have looked at service resources, including the hasstatus, pattern, hasrestart, restart, stop, and start attributes. We've learned how to create users and groups, manage home directories, shells, UIDs, and SSH authorized keys. We've seen how to schedule, manage, and remove cron jobs.

Finally, we've learned all about the powerful exec resource, including how to run arbitrary commands, and how to run commands only under certain conditions, or only if a specific file is not present. We've seen how to use the refreshonly attribute to trigger an exec when other resources are updated, and...