Using EPP templates

EPP templates are a new feature in Puppet 3.5 and newer versions. EPP templates use a syntax similar to ERB templates but are not compiled through Ruby. Two new functions are defined to call EPP templates, epp, and inline_epp. These functions are the EPP equivalents of the ERB functions template and inline_template, respectively. The main difference with EPP templates is that variables are referenced using the Puppet notation, $variable instead of @variable.

How to do it...

1. Create an EPP template in ~/puppet/epp-test.epp with the following content:

   This is <%= $message %>.

2. Create an epp.pp manifest, which uses the epp and inline_epp functions:

   $message = "the message"
   file {'/tmp/epp-test':
     content => epp('/home/thomas/puppet/epp-test.epp')
   }
   notify {inline_epp('Also prints <%= $message %>'):}

3. Apply the manifest making sure to use the future parser (the future parser is required for the epp and inline_epp functions to be defined):

   t@mylaptop ~/puppet $ puppet...