Support Grafana dashboards for Prometheus

Change-Id: I053e9d93f6feb2026e3fd63b4151d0907764cb92
diff --git a/metadata/service/common.yml b/metadata/service/common.yml
index b02880d..7cb5766 100644
--- a/metadata/service/common.yml
+++ b/metadata/service/common.yml
@@ -1,3 +1,6 @@
+classes:
+- service.kubernetes.logging
+- service.kubernetes.monitoring
 parameters:
   kubernetes:
     common: