refacter: renamed facts to libs

modules/libs/lib/facter/mariadb_galera_active.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+# check if the mariadb server exists
+# check if the mariadb_datapath fact exists, else set /var/lib/mysql as the datapath
+# check if the galera grastate.dat file exists, identifying if galera is boostrapped
+require 'facter'
+
+if system('systemctl is-active --quiet mariadb')
+
+  Facter.add('mariadb_galera_active') do
+    setcode do
+      mariadb_datapath = Facter.value(:mariadb_datapath) || '/var/lib/mysql'
+      File.exist?("#{mariadb_datapath}/grastate.dat")
+    end
+  end
+end