1 files changed, 27 insertions, 0 deletions
diff --git a/app/controllers/projects/prometheus/metrics_controller.rb b/app/controllers/projects/prometheus/metrics_controller.rb
new file mode 100644
index 00000000000..b739d0f0f90
--- /dev/null
+++ b/app/controllers/projects/prometheus/metrics_controller.rb
@@ -0,0 +1,27 @@
+module Projects
+  module Prometheus
+    class MetricsController < Projects::ApplicationController
+      before_action :authorize_admin_project!
+
+      def active_common
+        respond_to do |format|
+          format.json do
+            matched_metrics = prometheus_service.matched_metrics || {}
+
+            if matched_metrics.any?
+              render json: matched_metrics
+            else
+              head :no_content
+            end
+          end
+        end
+      end
+
+      private
+
+      def prometheus_service
+        @prometheus_service ||= project.find_or_initialize_service('prometheus')
+      end
+    end
+  end
+end