refacter: renamed facts to libs

modules/libs/lib/facter/enc_role_tier1.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+# split the enc_role fact into different tiers
+#
+# e.g.
+# enc_role_tier2: roles::infra::dns::resolver -> infra
+Facter.add(:enc_role_tier1) do
+  setcode do
+    role = Facter.value(:enc_role)
+    if role
+      parts = role.split('::')
+      parts[1] if parts.size > 1
+    end
+  end
+end