lumen support

src/lumen_routes.php

@@ -0,0 +1,7 @@
+<?php
+
+$router->get(config('prometheus.metrics_route_path'), [
+    'as' => config('prometheus.metrics_route_name'),
+    'middleware' => config('prometheus.metrics_route_middleware'),
+    'uses' => 'MetricsController@getMetrics'
+]);