Use metrics

nameserver/metrics.go

@@ -0,0 +1,21 @@
+package nameserver
+
+import (
+	"github.com/safing/portbase/api"
+	"github.com/safing/portbase/config"
+	"github.com/safing/portbase/metrics"
+)
+
+var requestsHistogram *metrics.Histogram
+
+func registerMetrics() (err error) {
+	requestsHistogram, err = metrics.NewHistogram(
+		"nameserver/request/duration/seconds",
+		nil,
+		&metrics.Options{
+			Permission:     api.PermitUser,
+			ExpertiseLevel: config.ExpertiseLevelExpert,
+		})
+
+	return err
+}