----- Original Message -----
> From: "Axel Bock" <axel.b...@arbeitsagentur.de>
> To: puppet-users@googlegroups.com
> Sent: Thursday, July 19, 2012 2:54:36 PM
> Subject: [Puppet Users] Integrating Ruby methods into Puppet classes
>
> Hello all,
>
> I am new to puppet and I am currently designing a set of deployment
> rules for our company web servers. The Puppet DSL brings me quite
> far, but now I could really use the possibility to extend the DSL
> with one or two ruby functions.
>
> Example: I would like to iterate over all the IP addresses of a
> system, picking out only those which match a certain criteria.
> There are method-like things in the DSL, like the template("...")
> method for the file class.
>
> Now my question is: Is that possible in general? And if yes - where
> is a point where I can read up on this? I am a Ruby Noob (tm) but
> firm in quite a few other languages, so some rough hands-on
> documentation on how to start should be enough.
You can write your own functions
http://docs.puppetlabs.com/guides/custom_functions.html
Puppet ships with quite a few
http://docs.puppetlabs.com/references/stable/function.html
And there is a good library called puppetlabs-stdlib with many more
https://github.com/puppetlabs/puppetlabs-stdlib
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