Rake API for Puppet Dashboard - includes functionality to search for nodes that contain a class

node.rb

task :hasclass => :environment do
    class_name = false

    if ENV['class']
      class_name = ENV['class']
    end

    NodeClassMembership.find(:all, :include => [:node_class],:conditions => {
:node_classes => { :name => class_name }
}).each do |node|
        puts node.node.name
    end
  end