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
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
Index

The bootstrap process


In order to prepare a new node for Puppet management using the demo repo, we need to do a number of things:

  • Install Puppet

  • Clone the Git repo

  • Run Puppet for the first time

In Chapter 3, Managing your Puppet code with Git, we performed these steps manually, but the demo repo automates this process (usually known as bootstrap). Here is the bootstrap script (scripts/bootstrap.sh):

#!/bin/bash
PUPPET_REPO=$1
HOSTNAME=$2
BRANCH=$3
if [ "$#" -ne 3 ]; then
  echo "Usage: $0 PUPPET_REPO HOSTNAME BRANCH"
  exit 1
fi
hostname ${HOSTNAME}
echo ${HOSTNAME} >/etc/hostname
source /etc/lsb-release
apt-key adv --fetch-keys http://apt.puppetlabs.com/DEB-GPG-KEY-puppet
wget http://apt.puppetlabs.com/puppetlabs-release-${DISTRIB_CODENAME}.deb
dpkg -i puppetlabs-release-${DISTRIB_CODENAME}.deb
apt-get update
apt-get -y install git puppet-agent
cd /etc/puppetlabs/code/environments
mv production production.orig
git clone ${PUPPET_REPO} production
cd production
git checkout ${BRANCH}
/opt/puppetlabs...