feat: add authn-basic layer

internal/proxy/director/layer/authn/basic/metrics.go

@@ -0,0 +1,31 @@
+package basic
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+)
+
+const (
+	metricNamespace  = "bouncer_layer_authn_basic"
+	metricLabelProxy = "proxy"
+	metricLabelLayer = "layer"
+)
+
+var (
+	metricAuthorizedTotal = promauto.NewCounterVec(
+		prometheus.CounterOpts{
+			Name:      "authorized_total",
+			Help:      "Bouncer's authn-basic layer total authorized accesses",
+			Namespace: metricNamespace,
+		},
+		[]string{metricLabelProxy, metricLabelLayer},
+	)
+	metricForbiddenTotal = promauto.NewCounterVec(
+		prometheus.CounterOpts{
+			Name:      "forbidden_total",
+			Help:      "Bouncer's authn-basic layer total forbidden accesses",
+			Namespace: metricNamespace,
+		},
+		[]string{metricLabelProxy, metricLabelLayer},
+	)
+)