Book Image

Puppet 3: Beginner's Guide

By : John Arundel
Book Image

Puppet 3: Beginner's Guide

By: John Arundel

Overview of this book

<p>Everyone's talking about Puppet, the open-source DevOps technology that lets you automate your server setups and manage websites, databases, and desktops. Puppet can build new servers in seconds, keep your systems constantly up to date, and automate daily maintenance tasks. <br /><br />"Puppet 3 Beginner's Guide" gets you up and running with Puppet straight away, with complete real world examples. Each chapter builds your skills, adding new Puppet features, always with a practical focus. You'll learn everything you need to manage your whole infrastructure with Puppet.<br /><br />"Puppet 3 Beginner’s Guide" takes you from complete beginner to confident Puppet user, through a series of clear, simple examples, with full explanations at every stage.</p> <p>Through a series of worked examples introducing Puppet to a fictional web company, you'll learn how to manage every aspect of your server setup. Switching to Puppet needn't be a big, long-term project; this book will show you how to start by bringing one small part of your systems under Puppet control and, little by little, building to the point where Puppet is managing your whole infrastructure.</p> <p>Presented in an easy-to-read guide to learning Puppet from scratch, this book explains simply and clearly all you need to know to use this essential IT power tool, all the time applying these solutions to real-world scenarios.</p>
Table of Contents (17 chapters)
Puppet 3 Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Time for action – cloning the repo to a new machine


You'll need a second machine similar to the one you have been using so far (either a cloud instance, a Vagrant VM, or a physical machine, whichever is convenient). Install Puppet and its dependencies as you did for the first machine in Chapter 2, First steps with Puppet, in the Time for action – preparing for Puppet and Time for action – installing Puppet sections.

  1. Once the machine is set up, create the git user:

    ubuntu@demo2:~$ sudo useradd -m git
    
  2. Create a .ssh directory and private key file, and set appropriate permissions:

    ubuntu@demo2:~$ sudo su - git
    git@demo2:~$ mkdir .ssh
    git@demo2:~$ chmod 700 .ssh
    git@demo2:~$ touch .ssh/id_rsa
    git@demo2:~$ chmod 600 .ssh/id_rsa
    
  3. On your first server, display the SSH private key for git and copy it to the clipboard:

    ubuntu@demo:~$ sudo cat ~git/.ssh/id_rsa
    -----BEGIN RSA PRIVATE KEY-----
    MIIEowIBAAKCAQEA1wR9i+bkwsNIcyd1ojhBH13ecuOhGfoJpjdjSjocBjf2fJRa
    ...
    GOTLXyqpcrez/Ijbc9TJsaFNisnb1HqBR31J/N2StjHmwjtOmlwL...