Puppet Module and Class Examples

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On this post I will present couple of examples about Puppet’s Class and Module sections. This is all tested on Ubuntu 12.04 and continues my Puppet series where I am going through all the necessary and important aspects of Linux’s Puppet software.


I will continue using the same example of Apache2 I have used during my last posts about Puppet.

In order to make classes work we need to apply them a little bit differently than normal manifests. With puppet apply --verbose apacheclassname.pp you can use the class written below.


Modules are used by Puppet to autoload manifests, so you can use classes stored in a module from anywhere. Now we need to take our just created class into a module. Modules file and folder structure is at its simplest like this: modules/modulename/manifests in this folder you have init.pp which will be ran everytime you do something with the module.

Place the code below to this init.pp file in modules/apache/manifests/ and run it with puppet apply --modulepath PATHtoMODULeDIRECTORY -e "include apacheclassname"

Here is another module about file permissions which changes the default www-directory to be used www-data user. This should go to modules/wwwdir/init.pp and you can run it with puppet apply --modulepath PATHtoMODULeDIRECTORY -e "include wwwdir"

There was some example classes and modules. I hope they helped you out!