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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Summary
In this chapter, we've outlined some of the problems with maintaining configuration data in Puppet manifests, and introduced Hiera as a powerful solution. We've seen how to configure Puppet to use the Hiera data store, and how to query Hiera keys in Puppet manifests using lookup().
We've looked at how to write Hiera data sources, including string, array, and hash data structures, and how to interpolate values into Hiera data, including Puppet facts, and other Hiera data. We've learned how Hiera's hierarchy works, and how to configure it using the hiera.yaml file.
We've seen how to configure our example Puppet infrastructure to use Hiera data, and proved the process by looking up a data value in a Puppet manifest. In case of problems, we've ...
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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.