Learning Puppet 4

Part II. Creating Puppet Modules

Puppet modules are bundles of Puppet code, files, templates, and data. Well-written Puppet modules provide a clean interface for sharing reusable code between different teams either within your organization or throughout the global community.

Puppet modules provide several benefits. For example, they:

• Organize code and data within the module’s namespace.
• Contain manifests that evaluate, install, configure, or remove something.
• Provide files, templates, tests, functions, and plugins for use in other modules.

In this part, we’ll discuss how to find and use Puppet modules that other people have made available for you. We’ll show you how to provide data to these modules such that you can use them without modifying the module code.

While you may find old examples of Puppet manifests used independently, it has been best practice for many years now for all manifests to reside within modules. We will go through the process of turning the manifests built in Part I into fully formed and well-built Puppet modules.