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Puppet 4.10 Beginner's Guide

Puppet 4.10 Beginner's Guide - Second Edition

By : John Arundel
4.5 (4)
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Puppet 4.10 Beginner's Guide

Puppet 4.10 Beginner's Guide

4.5 (4)
By: John Arundel

Overview of this book

Puppet 4.10 Beginner’s Guide, Second Edition, gets you up and running with the very latest features of Puppet 4.10, 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 (14 chapters)
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13
Index

Services


Although services are implemented in a number of varied and complicated ways at the operating system level, Puppet does a good job of abstracting away most of this with the service resource and exposing just the two attributes of services which you most commonly need to manage: whether they're running (ensure) and whether they start at boot time (enable). We covered the use of these in Chapter 2, Creating your first manifests, and most of the time, you won't need to know any more about service resources.

However, you'll occasionally encounter services which don't play well with Puppet, for a variety of reasons. Sometimes Puppet is unable to detect that the service is already running, and keeps trying to start it. Other times, Puppet may not be able to properly restart the service when a dependent resource changes. There are a few useful attributes for service resources which can help resolve these problems.

The hasstatus attribute

When a service resource has the attribute ensure ...

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