May 2017
Beginner
268 pages
6h 1m
English
Content preview from Puppet 4.10 Beginner's Guide - Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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What is Puppet?
Puppet is two things: a language for expressing the desired state (how your nodes should be configured), and an engine which interprets code written in the Puppet language and applies it to nodes to bring about the desired state.
What does this language look like? It's not exactly a series of instructions, like a shell script or a Ruby program. It's more like a set of declarations about the way things should be. Consider the following example:
package { 'curl':
ensure => installed,
}In English, this code says—The
curl
package should be installed. When you apply this manifest (Puppet programs are called manifests), the tool will do the following:
- Check the list of installed packages on the node to see if curl is already installed. ...
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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.