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Mastering Puppet 5

Mastering Puppet 5

By : Russell-Yates, Southgate
4.4 (5)
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Mastering Puppet 5

Mastering Puppet 5

4.4 (5)
By: Russell-Yates, Southgate

Overview of this book

Puppet is a configuration management system and a language written for and by system administrators to manage a large number of systems efficiently and prevent configuration drift. The core topics this book addresses are Puppet's latest features and mastering Puppet Enterprise. You will begin by writing a new Puppet module, gaining an understanding of the guidelines and style of the Puppet community. Following on from this, you will take advantage of the roles and profiles pattern, and you will learn how to structure your code. Next, you will learn how to extend Puppet and write custom facts, functions, types, and providers in Ruby, and also use the new features of Hiera 5. You will also learn how to configure the new Code Manager component, and how to ensure code is automatically deployed to (multiple) Puppet servers. Next, you will learn how to integrate Puppet with Jenkins and Git to build an effective workflow for multiple teams, and use the new Puppet Tasks feature and the latest Puppet Orchestrator language extensions. Finally, you will learn how to scale and troubleshoot Puppet. By the end of the book, you will be able to deal with problems of scale and exceptions in your code, automate workflows, and support multiple developers working simultaneously.
Table of Contents (14 chapters)
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Catalog errors

When a catalog compilation error is triggered, the Puppet Parser is alerting us that it cannot build a catalog from the provided code. A puppet run will fail and the agent will not configure anything on a node that fails catalog compilation. These errors trigger when Puppet cannot read the code, or cannot determine how to apply the resources supplied in the catalog. In the next sections, we'll cover the following common failures:

  • Syntax errors
  • Duplicate resource declarations
  • Missing resources
  • Autoload format
  • Circular dependencies
Enterprise Users: The configuration tab in the classification group will not be able to read classes that contain syntax errors, missing classes, or classes not found in autoload format.

Syntax errors

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