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Puppet Cookbook - Third Edition

Puppet Cookbook - Third Edition

By : Thomas Uphill, John Arundel
5 (2)
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Puppet Cookbook - Third Edition

Puppet Cookbook - Third Edition

5 (2)
By: Thomas Uphill, John Arundel

Overview of this book

This book is for anyone who builds and administers servers, especially in a web operations context. It requires some experience of Linux systems administration, including familiarity with the command line, file system, and text editing. No programming experience is required.
Table of Contents (12 chapters)
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11
Index

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...

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