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Extending Puppet by Alessandro Franceschi

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Puppet components

Before diving into the installation and configuration details, we need to clarify and explain some Puppet terminology to get the whole picture.

Puppet features a declarative Domain Specific Language (DSL), which expresses the desired state and properties of the managed resources.

Resources can be any component of a system, for example, packages to install, services to start, files to manage, users to create, and also custom and specific resources such as MySQL grants, Apache virtual hosts, and so on.

Puppet code is written in manifests, which are simple text files with a .pp extension. Resources can be grouped in classes (do not consider them as classes as in OOP; they aren't). Classes and all the files needed to define the required ...

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