Add job_workflow_ref label to listener metrics (#4054)

Signed-off-by: rskmm0chang <[email protected]>

Author: rskmm0chang

charts/gha-runner-scale-set/values.yaml

@@ -131,7 +131,7 @@ githubConfigSecret:
 #   counters:
 #     gha_started_jobs_total:
 #       labels:
-#         ["repository", "organization", "enterprise", "job_name", "event_name"]
+#         ["repository", "organization", "enterprise", "job_name", "event_name", "job_workflow_ref"]
 #     gha_completed_jobs_total:
 #       labels:
 #         [
@@ -141,6 +141,7 @@ githubConfigSecret:
 #           "job_name",
 #           "event_name",
 #           "job_result",
+#           "job_workflow_ref",
 #         ]
 #   gauges:
 #     gha_assigned_jobs:
@@ -162,7 +163,7 @@ githubConfigSecret:
 #   histograms:
 #     gha_job_startup_duration_seconds:
 #       labels:
-#         ["repository", "organization", "enterprise", "job_name", "event_name"]
+#         ["repository", "organization", "enterprise", "job_name", "event_name","job_workflow_ref"]
 #       buckets:
 #         [
 #           0.01,
@@ -220,6 +221,7 @@ githubConfigSecret:
 #           "job_name",
 #           "event_name",
 #           "job_result",
+#           "job_workflow_ref"
 #         ]
 #       buckets:
 #         [

cmd/ghalistener/metrics/metrics.go

@@ -21,6 +21,7 @@ const (
 	labelKeyOrganization            = "organization"
 	labelKeyRepository              = "repository"
 	labelKeyJobName                 = "job_name"
+	labelKeyJobWorkflowRef          = "job_workflow_ref"
 	labelKeyEventName               = "event_name"
 	labelKeyJobResult               = "job_result"
 )
@@ -75,11 +76,12 @@ var metricsHelp = metricsHelpRegistry{
 
 func (e *exporter) jobLabels(jobBase *actions.JobMessageBase) prometheus.Labels {
 	return prometheus.Labels{
-		labelKeyEnterprise:   e.scaleSetLabels[labelKeyEnterprise],
-		labelKeyOrganization: jobBase.OwnerName,
-		labelKeyRepository:   jobBase.RepositoryName,
-		labelKeyJobName:      jobBase.JobDisplayName,
-		labelKeyEventName:    jobBase.EventName,
+		labelKeyEnterprise:     e.scaleSetLabels[labelKeyEnterprise],
+		labelKeyOrganization:   jobBase.OwnerName,
+		labelKeyRepository:     jobBase.RepositoryName,
+		labelKeyJobName:        jobBase.JobDisplayName,
+		labelKeyJobWorkflowRef: jobBase.JobWorkflowRef,
+		labelKeyEventName:      jobBase.EventName,
 	}
 }