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Puppet 4.10 Beginner???s Guide, Second Edition

You're reading from   Puppet 4.10 Beginner???s Guide, Second Edition From newbie to pro with Puppet 4.10

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Product type Paperback
Published in May 2017
Publisher Packt
ISBN-13 9781787124004
Length 268 pages
Edition 2nd Edition
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Author (1):
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John Arundel John Arundel
Author Profile Icon John Arundel
John Arundel
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Table of Contents (14) Chapters Close

Preface 1. Getting started with Puppet FREE CHAPTER 2. Creating your first manifests 3. Managing your Puppet code with Git 4. Understanding Puppet resources 5. Variables, expressions, and facts 6. Managing data with Hiera 7. Mastering modules 8. Classes, roles, and profiles 9. Managing files with templates 10. Controlling containers 11. Orchestrating cloud resources 12. Putting it all together Index

Writing your own modules


As we've seen, a Puppet module is a way of grouping together a set of related code and resources which perform some particular task, such as managing the Apache web server, or dealing with archive files. But how do you actually create a module? In this section we'll develop a module of our own to manage the Network Time Protocol (NTP) service, familiar to most system administrators as the easiest way to keep server clocks synchronized with the Internet time standard. (Of course, it's not necessary to write your own module for this, because a perfectly good one exists on the Puppet Forge. But we'll do so anyway, for learning purposes.)

Creating a repo for your module

If we're going to use our new module alongside others that we've installed from Puppet Forge, then we should create a new Git repo just for our module. Then we can add its details to our Puppetfile and have r10k install it for us.

If you've already worked through Chapter 3, Managing your Puppet code with...

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