puppet::defines::fact_d which creates facts.d.txt facts... facts.

manifests/defines/fact_d.pp

@@ -0,0 +1,12 @@
+define puppet::defines::fact_d ($ensure = 'present', $key = false, $value) {
+  require 'puppet::common'
+  $k_real = $key ? {
+    false   => $name,
+    default => $key,
+  }
+
+  file { "${puppet::common::facts_d}/${k_real}.txt":
+    content => "${k_real}=${value}",
+    ensure  => $ensure,
+  }
+}