TRT-1989: adds loadMetricGauge minutes metric

Author: neisw

pkg/dataloader/loaderwithmetrics/loaderwithmetrics.go

@@ -15,6 +15,12 @@ import (
 	"github.com/openshift/sippy/pkg/dataloader"
 )
 
+// want a single total load time
+var loadMetricGauge = promauto.NewGauge(prometheus.GaugeOpts{
+	Name: "sippy_data_load_minutes",
+	Help: "Minutes to load data into the DB",
+})
+
 var loadMetric = promauto.NewHistogramVec(prometheus.HistogramOpts{
 	Name:    "sippy_data_load_millis",
 	Help:    "Milliseconds to load data into the DB",
@@ -41,6 +47,7 @@ func New(wrappedLoaders []dataloader.DataLoader) *LoaderWithMetrics {
 		loader.promPusher = push.New(pushgateway, "sippy-prow-job-loader")
 		loader.promPusher.Collector(errorMetric)
 		loader.promPusher.Collector(loadMetric)
+		loader.promPusher.Collector(loadMetricGauge)
 	}
 
 	return loader
@@ -89,6 +96,7 @@ func (l *LoaderWithMetrics) Load() {
 	overallDuration := time.Since(overallStart)
 	log.Infof("%d loaders finished in %+v...", len(l.loaders), overallDuration)
 	loadMetric.WithLabelValues("total").Observe(float64(overallDuration.Milliseconds()))
+	loadMetricGauge.Set(float64(overallDuration.Minutes()))
 
 	if l.promPusher != nil {
 		log.Info("pushing metrics to prometheus gateway")