Accessing fact from Facter within Puppet manifest ...

gistfile1.rb

# The following monstrosity ...

define partitions {
  $fact   = "partitions_${name}"
  $result = split(inline_template("<%= scope.lookupvar(fact) %>"), ',')

  notice $result

  partition { $result: }
}

define partition {
  notice $name
}

$available_disks = split($disks, ',')

partitions { $available_disks: }

# Will produce the following ...

kwilczynski@dev04:~/Development/Sandbox$ FACTERLIB=. puppet test.pp 
notice: Scope(Partitions[hda]): hda1 hda2
notice: Scope(Partition[hda1]): hda1
notice: Scope(Partition[hda2]): hda2