June 2023
Intermediate to advanced
416 pages
11h 5m
English
Content preview from Puppet 8 for DevOps Engineers
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5
Facts and Functions
This chapter will cover facts. We will show you how the Facter tool gathers them to show the profile of systems, how to interact with Facter, and how to use them in Puppet code. We will also cover how custom and external facts can be added to the provided core facts, to allow for more user-specific facts to be gathered.
Then, we will cover functions. We will explain what functions do and the three types of functions – statement, prefix, and chained. We will examine a selection of the core provided functions to show you their capabilities. A selection of functions will also be shown from the stdlib module, where we will explain the module’s approach and uses.
Deferred functions, which were introduced in Puppet 6, will also ...
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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.