Book Image

Puppet 5 Cookbook - Fourth Edition

By : Thomas Uphill
Book Image

Puppet 5 Cookbook - Fourth Edition

By: Thomas Uphill

Overview of this book

Puppet is a configuration management system that automates all your IT configurations, giving you control of managing each node. Puppet 5 Cookbook will take you through Puppet's latest and most advanced features, including Docker containers, Hiera, and AWS Cloud Orchestration. Updated with the latest advancements and best practices, this book delves into various aspects of writing good Puppet code, which includes using Puppet community style, checking your manifests with puppet-lint, and learning community best practices with an emphasis on real-world implementation. You will learn to set up, install, and create your first manifests with version control, and also learn about various sysadmin tasks, including managing configuration files, using Augeas, and generating files from snippets and templates. As the book progresses, you'll explore virtual resources and use Puppet's resource scheduling and auditing features. In the concluding chapters, you'll walk through managing applications and writing your own resource types, providers, and external node classifiers. By the end of this book, you will have learned to report, log, and debug your system.
Table of Contents (16 chapters)
Title Page
Packt Upsell
Contributors
Preface
Index

Understanding Puppet errors


Puppet's error messages can sometimes be a little confusing. Updated and increasingly helpful error messages are one reason to upgrade your Puppet installation if you are running any version prior to Version 3.

Here are some of the most common errors you might encounter, and what to do about them.

How to do it...

Often, the first step is simply to search the web for the error message text and see what explanations you can find for the error, along with any helpful advice about fixing it. Here are some of the most common puzzling errors, with possible explanations.

Could not retrieve file metadata for XXX: getaddrinfo: Name or service not known

Where XXX is a file resource, you may have accidentally typed puppet://modules... in a file source instead of puppet:///modules... (note the triple slash).

Could not evaluate: Could not retrieve information from environment production source(s) XXX

The source file may not be present or may not be in the right location in the Puppet...