Puppet and The Magic of Define

gistfile1.rb

# The following monstrosity ...

class test { }

define test::a($array) {
        test::iterator { $name:
                array => $array
        }
}

define test::iterator($array) {
        $i = inline_template('<%= array.collect { |i| "#{name}_#{i}" }.join("|") %>')
        $j = split($i, "\\|")
        
        notice $j

        test::action { $j: }
}

define test::action {
        notice $name
}

$a = [ 'a', 'b', 'c' ]

test::a {
        "foo":
                array => $a;

        "bar":
                array => $a;
}

# Will produce the following ...

kwilczynski@dev04:~/Development/Sandbox$ puppet test.pp 
notice: Scope(Test::Iterator[foo]): foo_a foo_b foo_c
notice: Scope(Test::Iterator[bar]): bar_a bar_b bar_c
notice: Scope(Test::Action[foo_a]): foo_a
notice: Scope(Test::Action[foo_b]): foo_b
notice: Scope(Test::Action[foo_c]): foo_c
notice: Scope(Test::Action[bar_a]): bar_a
notice: Scope(Test::Action[bar_b]): bar_b
notice: Scope(Test::Action[bar_c]): bar_c