Add Tenants visualization dashboard

Change-Id: Ibde5b7cafcd79c0da7e72de96dfeb88a3a16236a
Related-PROD: PROD-22819
diff --git a/metadata/service/client/dashboards/openstack/nova.yml b/metadata/service/client/dashboards/openstack/nova.yml
index c883e12..8cf69a0 100644
--- a/metadata/service/client/dashboards/openstack/nova.yml
+++ b/metadata/service/client/dashboards/openstack/nova.yml
@@ -26,3 +26,7 @@
           datasource: prometheus
           format: json
           template: grafana/files/dashboards/nova/openstack_overview_prometheus.json
+        openstack_tenants_prometheus:
+          datasource: prometheus
+          format: json
+          template: grafana/files/dashboards/nova/openstack_tenants_prometheus.json