Puppet classes are primarily composed of which of the following?

Puppet classes are primarily composed of resources, which are the key building blocks for defining the desired state of your system. Each resource describes a piece of configuration that Puppet manages, such as files, packages, services, and users. By grouping these resources into classes, you can encapsulate related configurations into reusable units, making your Puppet code more organized and modular.

Classes allow you to apply multiple resources together in a cohesive manner, enabling you to manage complex configurations with ease. When a class is declared, all the resources defined within it are applied in the order specified, ensuring that the necessary configurations are enforced on the target nodes efficiently.

While definitions, variables, and functions are all important components of Puppet, they serve different roles. Definitions are used to create reusable resource types. Variables store data that can be used throughout your Puppet manifests, and functions provide methods for processing data and performing operations. However, resources remain the fundamental unit through which configuration management is expressed in Puppet classes.