June 2011
Beginner
56 pages
1h 13m
English
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Chapter 1. Baby Steps to Automation
Puppet is a configuration management framework with an object-oriented twist. It provides a declarative language syntax and an abstraction layer that allow you to write heavily reusable and understandable configuration definitions. In this chapter, I’ll cover the basics of the Puppet programs, the language syntax, and some simple class and resource definitions.
Getting the Software
A Puppet deployment comes with a couple of pieces of software. For
the most part, these can be installed from your chosen Linux
distribution’s package manager. Alternatively, you can use the packages or
source provided by Puppet Labs at http://www.puppetlabs.com/misc/download-options/. In my
examples, I’ve used Ubuntu Linux 11.04, but the packages are very similar
in each distro. There are generally two packages: the Puppet package
itself, which comes with Facter, and the Puppet Master server. For the
purposes of this chapter, the Puppet and Facter package will suffice. When
installed, it will include an init script to start an “agent” daemon at
boot, which will look for a Puppet Master. For simplicity’s sake, we will
test manifests from the command line using the puppet apply command to begin:
Ubuntu:
apt-get install puppetFedora:
yum install puppetMac OS X:
port install puppet
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.