add rule

Author: tjungblu

Diff for: assets/cluster-monitoring-operator/prometheus-rule.yaml

@@ -384,6 +384,8 @@ spec:
     - expr: sum (max without(service,endpoint,container,pod,job,namespace) (irate(haproxy_server_http_responses_total{exported_namespace=~"openshift-.*"}[5m])))
         or absent(__does_not_exist__)*0
       record: cluster:usage:openshift:ingress_request_total:irate5m
+    - expr: sum(ingress_controller_aws_nlb_active) or absent(__does_not_exist__)*0
+      record: cluster:ingress_controller_aws_nlb_active:sum
   - name: openshift-build.rules
     rules:
     - expr: sum by (strategy) (openshift_build_status_phase_total)

Diff for: jsonnet/rules.libsonnet

@@ -513,6 +513,11 @@ function(params) {
           record: 'cluster:usage:openshift:ingress_request_total:irate5m',
           // The instantaneous rate of openshift requests per second arriving at the ingress controllers
         },
+        {
+          expr: 'sum(ingress_controller_aws_nlb_active) or absent(__does_not_exist__)*0',
+          record: 'cluster:ingress_controller_aws_nlb_active:sum',
+          // Informs how many NLBs are active in AWS.
+        },
       ],
     },
     {