DevOps: Puppet, Docker, and Kubernetes

Using resource defaults

A Puppet module is a group of related resources, usually grouped to configure a specific service. Within a module, you may define multiple resources; resource defaults allow you to specify the default attribute values for a resource. In this example, we'll show you how to specify a resource default for the File type.

How to do it...

To show you how to use resource defaults, we'll create an apache module. Within this module we will specify that the default owner and group are the apache user as follows:

1. Create an apache module and create a resource default for the File type:

     class apache {
       File {
         owner => 'apache',
         group => 'apache',
         mode => 0644,
       }
     }

2. Create html files within the /var/www/html directory:

    file {'/var/www/html/index.html': ...