add kref uid as avaiable template field

config/core/configmaps/kreference-mapping.yaml

@@ -42,5 +42,6 @@ data:
     # - Name: reference name
     # - Namespace: reference namespace
     # - SystemNamespace: knative namespace
+    # - UID: reference UID
     #
     # Pod.v1: https://addressable-pod.{{ .SystemNamespace }}.svc.cluster.local/{{ .Name }}

pkg/resolver/mapping_resolver.go

@@ -24,6 +24,7 @@ import (
 	"go.uber.org/zap"
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/types"
 	"knative.dev/eventing/pkg/apis/feature"
 	"knative.dev/pkg/apis"
 	"knative.dev/pkg/configmap"
@@ -46,6 +47,7 @@ type MappingResolverTemplateValues struct {
 	Name            string
 	Namespace       string
 	SystemNamespace string
+	UID             types.UID
 }
 
 func NewMappingResolver(ctx context.Context, cmw configmap.Watcher, t tracker.Interface) *MappingResolver {
@@ -90,6 +92,7 @@ func (mr *MappingResolver) MappingURIFromObjectReference(ctx context.Context, re
 	data := MappingResolverTemplateValues{
 		Name:            ref.Name,
 		Namespace:       ref.Namespace,
+		UID:             ref.UID,
 		SystemNamespace: system.Namespace(),
 	}
 

pkg/resolver/mapping_resolver_test.go

@@ -75,11 +75,11 @@ func TestMappingResolver(t *testing.T) {
 					Namespace: testingNamespace,
 				},
 				Data: map[string]string{
-					"Service.v1": "https://{{ .Name }}.{{ .Namespace }}.svc.cluster.local",
+					"Service.v1": "https://{{ .Name }}.{{ .Namespace }}.svc.cluster.local/{{ .UID }}",
 				},
 			},
 			wantHandled: true,
-			wantURI:     "https://aservice.testns.svc.cluster.local",
+			wantURI:     "https://aservice.testns.svc.cluster.local/e23097c8-15a8-487b-b5a3-76fdc4a48c46",
 		},
 		"enabled, handled, with error (broken template)": {
 			enabled: true,
@@ -159,5 +159,6 @@ func serviceObjRef(ns string) *corev1.ObjectReference {
 		Name:       "aservice",
 		APIVersion: "v1",
 		Namespace:  ns,
+		UID:        "e23097c8-15a8-487b-b5a3-76fdc4a48c46",
 	}
 }