Book Image

Puppet 5 Essentials - Third Edition

By : Martin Alfke, Felix Frank
Book Image

Puppet 5 Essentials - Third Edition

By: Martin Alfke, Felix Frank

Overview of this book

Puppet is a configuration management tool that allows you to automate all your IT configurations, giving you control over what you do to each Puppet Agent in a network, and when and how you do it. In this age of digital delivery and ubiquitous Internet presence, it's becoming increasingly important to implement scaleable and portable solutions, not only in terms of software, but also the system that runs it. This book gets you started quickly with Puppet and its tools in the right way. It highlights improvements in Puppet and provides solutions for upgrading. It starts with a quick introduction to Puppet in order to quickly get your IT automation platform in place. Then you learn about the Puppet Agent and its installation and configuration along with Puppet Server and its scaling options. The book adopts an innovative structure and approach, and Puppet is explained with flexible use cases that empower you to manage complex infrastructures easily. Finally, the book will take readers through Puppet and its companion tools such as Facter, Hiera, and R10k and how to make use of tool chains.
Table of Contents (10 chapters)

Replacing a defined type with a native type

The process of creating a custom resource type with a matching provider
(or several providers) is not easy. Let's go through the steps involved:

  • Naming your type
  • Creating the resource type's interface
  • Designing sensible parameter hooks
  • Using resource names
  • Adding a provider
  • Declaring management commands
  • Implementing the basic functionality
  • Allowing the provider to prefetch existing resources
  • Making the type robust during provisioning

Naming your type

The first important difference between the native and defined types is the naming. There is no module namespacing for the custom types as you get with the defined types, which are manifest-based. Native types from all the...