feat: use KongObjectRef in KongRoute

.golangci.yaml

@@ -88,8 +88,6 @@ linters-settings:
         disabled: false
         arguments:
           - "checkPrivateReceivers"
-          # TODO: enable this when ready to refactor exported types that stutter at call site.
-          - "disableStutteringCheck"
       - name: context-as-argument
         # TODO: re-add this rule after https://github.com/golangci/golangci-lint/issues/3280
         # is resolved and released.

api/configuration/v1alpha1/object_ref.go

@@ -1,15 +1,17 @@
 package v1alpha1
 
+// TODO: https://github.com/Kong/kubernetes-configuration/issues/96
+// Change other types to use the generic `KongObjectRef` and move it to a common package
+// to prevent possible import cycles.
+
 // KongObjectRef is a reference to another object representing a Kong entity with deterministic type.
 //
-// TODO: https://github.com/Kong/kubernetes-configuration/issues/96
-// change other types to use the generic `KongObjectRef` and move it to a common package to prevent possible import cycles.
 // +apireference:kgo:include
 type KongObjectRef struct {
 	// Name is the name of the entity.
 	//
-	// NOTE: the `Required` validation rule does not reject empty strings so we use `MinLength` to reject empty string here.
 	// +kubebuilder:validation:MinLength=1
 	Name string `json:"name"`
+
 	// TODO: handle cross namespace references.
 }

api/configuration/v1alpha1/service_ref.go

@@ -6,25 +6,16 @@ const (
 )
 
 // ServiceRef is a reference to a KongService.
+//
 // +kubebuilder:validation:XValidation:rule="self.type == 'namespacedRef' ? has(self.namespacedRef) : true", message="when type is namespacedRef, namespacedRef must be set"
 // +apireference:kgo:include
 type ServiceRef struct {
 	// Type can be one of:
 	// - namespacedRef
+	//
+	// +kubebuilder:validation:Enum:=namespacedRef
 	Type string `json:"type,omitempty"`
 
 	// NamespacedRef is a reference to a KongService.
-	NamespacedRef *NamespacedServiceRef `json:"namespacedRef,omitempty"`
-}
-
-// NamespacedServiceRef is a namespaced reference to a KongService.
-//
-// NOTE: currently cross namespace references are not supported.
-// +apireference:kgo:include
-type NamespacedServiceRef struct {
-	// +kubebuilder:validation:Required
-	Name string `json:"name"`
-
-	// TODO: handle cross namespace references.
-	// https://github.com/Kong/kubernetes-configuration/issues/106
+	NamespacedRef *KongObjectRef `json:"namespacedRef,omitempty"`
 }

config/crd/bases/configuration.konghq.com_kongroutes.yaml

@@ -207,6 +207,8 @@ spec:
                     description: NamespacedRef is a reference to a KongService.
                     properties:
                       name:
+                        description: Name is the name of the entity.
+                        minLength: 1
                         type: string
                     required:
                     - name
@@ -215,6 +217,8 @@ spec:
                     description: |-
                       Type can be one of:
                       - namespacedRef
+                    enum:
+                    - namespacedRef
                     type: string
                 type: object
                 x-kubernetes-validations:

config/crd/bases/configuration.konghq.com_kongsnis.yaml

@@ -49,10 +49,7 @@ spec:
                   which the KongSNI is attached.
                 properties:
                   name:
-                    description: |-
-                      Name is the name of the entity.
-
-                      NOTE: the `Required` validation rule does not reject empty strings so we use `MinLength` to reject empty string here.
+                    description: Name is the name of the entity.
                     minLength: 1
                     type: string
                 required:

docs/api-reference.md

@@ -1228,19 +1228,18 @@ _Appears in:_
 #### KongObjectRef
 
 
-KongObjectRef is a reference to another object representing a Kong entity with deterministic type.<br /><br />
-TODO: https://github.com/Kong/kubernetes-configuration/issues/96
-change other types to use the generic `KongObjectRef` and move it to a common package to prevent possible import cycles.
+KongObjectRef is a reference to another object representing a Kong entity with deterministic type.
 
 
 
 | Field | Description |
 | --- | --- |
-| `name` _string_ | Name is the name of the entity.<br /><br /> NOTE: the `Required` validation rule does not reject empty strings so we use `MinLength` to reject empty string here. |
+| `name` _string_ | Name is the name of the entity. |
 
 
 _Appears in:_
 - [KongSNISpec](#kongsnispec)
+- [ServiceRef](#serviceref)
 
 #### KongPluginBindingSpec
 
@@ -1596,22 +1595,6 @@ Namespace refers to a Kubernetes namespace. It must be a RFC 1123 label.
 _Appears in:_
 - [ControllerReference](#controllerreference)
 
-#### NamespacedServiceRef
-
-
-NamespacedServiceRef is a namespaced reference to a KongService.<br /><br />
-NOTE: currently cross namespace references are not supported.
-
-
-
-| Field | Description |
-| --- | --- |
-| `name` _string_ |  |
-
-
-_Appears in:_
-- [ServiceRef](#serviceref)
-
 #### ObjectName
 _Underlying type:_ `string`
 
@@ -1687,7 +1670,7 @@ ServiceRef is a reference to a KongService.
 | Field | Description |
 | --- | --- |
 | `type` _string_ | Type can be one of: - namespacedRef |
-| `namespacedRef` _[NamespacedServiceRef](#namespacedserviceref)_ | NamespacedRef is a reference to a KongService. |
+| `namespacedRef` _[KongObjectRef](#kongobjectref)_ | NamespacedRef is a reference to a KongService. |
 
 
 _Appears in:_

test/crdsvalidation/kongroute_test.go

@@ -28,7 +28,7 @@ func TestKongRoute(t *testing.T) {
 						},
 						ServiceRef: &configurationv1alpha1.ServiceRef{
 							Type: configurationv1alpha1.ServiceRefNamespacedRef,
-							NamespacedRef: &configurationv1alpha1.NamespacedServiceRef{
+							NamespacedRef: &configurationv1alpha1.KongObjectRef{
 								Name: "test-konnect-service",
 							},
 						},
@@ -226,7 +226,7 @@ func TestKongRoute(t *testing.T) {
 					Spec: configurationv1alpha1.KongRouteSpec{
 						ServiceRef: &configurationv1alpha1.ServiceRef{
 							Type:          configurationv1alpha1.ServiceRefNamespacedRef,
-							NamespacedRef: &configurationv1alpha1.NamespacedServiceRef{Name: "svc"},
+							NamespacedRef: &configurationv1alpha1.KongObjectRef{Name: "svc"},
 						},
 						KongRouteAPISpec: configurationv1alpha1.KongRouteAPISpec{
 							Paths: []string{"/"},
@@ -241,7 +241,7 @@ func TestKongRoute(t *testing.T) {
 					Spec: configurationv1alpha1.KongRouteSpec{
 						ServiceRef: &configurationv1alpha1.ServiceRef{
 							Type:          configurationv1alpha1.ServiceRefNamespacedRef,
-							NamespacedRef: &configurationv1alpha1.NamespacedServiceRef{Name: "svc"},
+							NamespacedRef: &configurationv1alpha1.KongObjectRef{Name: "svc"},
 						},
 						KongRouteAPISpec: configurationv1alpha1.KongRouteAPISpec{
 							Protocols: []sdkkonnectcomp.RouteProtocols{"http"},
@@ -257,7 +257,7 @@ func TestKongRoute(t *testing.T) {
 					Spec: configurationv1alpha1.KongRouteSpec{
 						ServiceRef: &configurationv1alpha1.ServiceRef{
 							Type:          configurationv1alpha1.ServiceRefNamespacedRef,
-							NamespacedRef: &configurationv1alpha1.NamespacedServiceRef{Name: "svc"},
+							NamespacedRef: &configurationv1alpha1.KongObjectRef{Name: "svc"},
 						},
 						KongRouteAPISpec: configurationv1alpha1.KongRouteAPISpec{
 							Protocols: []sdkkonnectcomp.RouteProtocols{"http"},
@@ -278,7 +278,7 @@ func TestKongRoute(t *testing.T) {
 					Spec: configurationv1alpha1.KongRouteSpec{
 						ServiceRef: &configurationv1alpha1.ServiceRef{
 							Type: configurationv1alpha1.ServiceRefNamespacedRef,
-							NamespacedRef: &configurationv1alpha1.NamespacedServiceRef{
+							NamespacedRef: &configurationv1alpha1.KongObjectRef{
 								Name: "test-konnect-service",
 							},
 						},
@@ -288,6 +288,39 @@ func TestKongRoute(t *testing.T) {
 					},
 				},
 			},
+			{
+				Name: "NamespacedRef reference is invalid when empty name is provided",
+				TestObject: &configurationv1alpha1.KongRoute{
+					ObjectMeta: commonObjectMeta,
+					Spec: configurationv1alpha1.KongRouteSpec{
+						ServiceRef: &configurationv1alpha1.ServiceRef{
+							Type: configurationv1alpha1.ServiceRefNamespacedRef,
+							NamespacedRef: &configurationv1alpha1.KongObjectRef{
+								Name: "",
+							},
+						},
+						KongRouteAPISpec: configurationv1alpha1.KongRouteAPISpec{
+							Paths: []string{"/"},
+						},
+					},
+				},
+				ExpectedErrorMessage: lo.ToPtr("spec.serviceRef.namespacedRef.name in body should be at least 1 chars long"),
+			},
+			{
+				Name: "NamespacedRef reference is invalid when name is not provided",
+				TestObject: &configurationv1alpha1.KongRoute{
+					ObjectMeta: commonObjectMeta,
+					Spec: configurationv1alpha1.KongRouteSpec{
+						ServiceRef: &configurationv1alpha1.ServiceRef{
+							Type: configurationv1alpha1.ServiceRefNamespacedRef,
+						},
+						KongRouteAPISpec: configurationv1alpha1.KongRouteAPISpec{
+							Paths: []string{"/"},
+						},
+					},
+				},
+				ExpectedErrorMessage: lo.ToPtr("when type is namespacedRef, namespacedRef must be set"),
+			},
 			{
 				Name: "not providing namespacedRef when type is namespacedRef yields an error",
 				TestObject: &configurationv1alpha1.KongRoute{
@@ -310,7 +343,7 @@ func TestKongRoute(t *testing.T) {
 					Spec: configurationv1alpha1.KongRouteSpec{
 						ServiceRef: &configurationv1alpha1.ServiceRef{
 							Type: configurationv1alpha1.ServiceRefNamespacedRef,
-							NamespacedRef: &configurationv1alpha1.NamespacedServiceRef{
+							NamespacedRef: &configurationv1alpha1.KongObjectRef{
 								Name: "test-konnect-service",
 							},
 						},
@@ -341,7 +374,7 @@ func TestKongRoute(t *testing.T) {
 					Spec: configurationv1alpha1.KongRouteSpec{
 						ServiceRef: &configurationv1alpha1.ServiceRef{
 							Type: configurationv1alpha1.ServiceRefNamespacedRef,
-							NamespacedRef: &configurationv1alpha1.NamespacedServiceRef{
+							NamespacedRef: &configurationv1alpha1.KongObjectRef{
 								Name: "test-konnect-service",
 							},
 						},
@@ -363,7 +396,7 @@ func TestKongRoute(t *testing.T) {
 				Update: func(ks *configurationv1alpha1.KongRoute) {
 					ks.Spec.ServiceRef.Type = "otherRef"
 				},
-				ExpectedUpdateErrorMessage: lo.ToPtr("spec.serviceRef is immutable when an entity is already Programmed"),
+				ExpectedUpdateErrorMessage: lo.ToPtr("Unsupported value: \"otherRef\": supported values: \"namespacedRef\""),
 			},
 		}.Run(t)
 	})