fix(metrics): remove resources that aren't updated

cmd/catalog/main.go

@@ -8,11 +8,13 @@ import (
 	"strings"
 	"time"
 
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 	log "github.com/sirupsen/logrus"
 	v1 "k8s.io/api/core/v1"
 
 	"github.com/operator-framework/operator-lifecycle-manager/pkg/controller/operators/catalog"
 	"github.com/operator-framework/operator-lifecycle-manager/pkg/lib/signals"
+	"github.com/operator-framework/operator-lifecycle-manager/pkg/metrics"
 	olmversion "github.com/operator-framework/operator-lifecycle-manager/pkg/version"
 )
 
@@ -45,6 +47,10 @@ var (
 	version = flag.Bool("version", false, "displays olm version")
 )
 
+func init() {
+	metrics.RegisterCatalog()
+}
+
 func main() {
 	stopCh := signals.SetupSignalHandler()
 
@@ -87,6 +93,10 @@ func main() {
 		log.Panicf("error configuring operator: %s", err.Error())
 	}
 
+	http.Handle("/metrics", promhttp.Handler())
+	go http.ListenAndServe(":8081", nil)
+
 	_, done := catalogOperator.Run(stopCh)
 	<-done
 }
+

cmd/olm/main.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 	log "github.com/sirupsen/logrus"
 	v1 "k8s.io/api/core/v1"
 
@@ -45,7 +45,7 @@ var (
 )
 
 func init() {
-	metrics.Register()
+	metrics.RegisterOLM()
 }
 
 // main function - entrypoint to OLM operator
@@ -100,12 +100,11 @@ func main() {
 	http.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusOK)
 	})
-	// TODO: both of the following require vendor updates (add k8s.io/apiserver and update prometheus)
-	//healthz.InstallHandler(mux) //(less code)
-	//mux.Handle("/metrics", promhttp.Handler()) //other form is deprecated
-	http.Handle("/metrics", prometheus.Handler())
 	go http.ListenAndServe(":8080", nil)
 
+	http.Handle("/metrics", promhttp.Handler())
+	go http.ListenAndServe(":8081", nil)
+
 	_, done := operator.Run(stopCh)
 	<-done
 }

go.mod

@@ -53,5 +53,5 @@ require (
 	k8s.io/klog v0.1.0 // indirect
 	k8s.io/kube-aggregator v0.0.0-20181204002017-122bac39d429
 	k8s.io/kube-openapi v0.0.0-20181031203759-72693cb1fadd
-	k8s.io/kubernetes v1.11.7-beta.0.0.20190108024450-5a0d4e5b8d31
+	k8s.io/kubernetes v1.11.7-beta.0.0.20190112090204-23cf8fe78f62
 )

pkg/metrics/metrics.go

@@ -129,15 +129,18 @@ var (
 	CSVUpgradeCount = prometheus.NewCounter(
 		prometheus.CounterOpts{
 			Name: "csv_upgrade_count",
-			Help: "Monotonic count of catalog sources",
+			Help: "Monotonic count of CSV upgrades",
 		},
 	)
 )
 
-func Register() {
+func RegisterOLM() {
 	prometheus.MustRegister(csvCount)
+	prometheus.MustRegister(CSVUpgradeCount)
+}
+
+func RegisterCatalog() {
 	prometheus.MustRegister(installPlanCount)
 	prometheus.MustRegister(subscriptionCount)
 	prometheus.MustRegister(catalogSourceCount)
-	prometheus.MustRegister(CSVUpgradeCount)
 }