Restart vault daemon on config file change

See jsok#154

Author: rgevaert

manifests/config.pp

@@ -35,6 +35,7 @@
       owner   => $::vault::user,
       group   => $::vault::group,
       mode    => $::vault::config_mode,
+      notify  => Service[$::vault::service_name],
     }
 
     # If manage_storage_dir is true and a file or raft storage backend is configured

manifests/service.pp

@@ -5,6 +5,7 @@
       ensure   => $::vault::service_ensure,
       enable   => $::vault::service_enable,
       provider => $::vault::service_provider,
+      require  => File["${::vault::config_dir}/config.json"],
     }
   }
 }