Book Image

Puppet 5 Beginner's Guide - Third Edition

By : John Arundel
Book Image

Puppet 5 Beginner's Guide - Third Edition

By: John Arundel

Overview of this book

Puppet 5 Beginner’s Guide, Third Edition gets you up and running with the very latest features of Puppet 5, 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 (21 chapters)
Puppet 5 Beginner's Guide Third Edition
About the Author
About the Reviewer
Customer Feedback

Defined resource types

Whereas a class lets you group together related resources, a defined resource type lets you create new kinds of resources and declare as many instances of them as you like. A defined resource type definition looks a lot like a class (defined_resource_type.pp):

# Manage user and SSH key together
define user_with_key(
  ] $key_type,
  String $key,
) {
  user { $title:
    ensure     => present,
    managehome => true,

  file { "/home/${title}/.ssh":
    ensure => directory,
    owner  => $title,
    group  => $title,
    mode   => '0700',

  ssh_authorized_key { $title:
    user => $title,
    type => $key_type,
    key  => $key,

You can see that instead of the class keyword, we use the define keyword. This tells Puppet that we are creating a defined resource...