It came up twice that I had to do this, so I decided to see if I could make something simple that solved my problem. I'm sure there's a project to do this already, but here goes. I have a list of machines, I want to see if they respond to a ping so I can determine if they are up or not.
Tutorial I gave at LISA 2014 http://goo.gl/G0TLfJ
This is a talk about running puppet in the enterprise, or at scale. The original title of Mastering Puppet was Puppet in the Enterprise, the talk was to present the ideas in the book.
The tutorial files are located on github at: https://github.com/uphillian/lisa2014