feat: add DeclarativeValidation and DeclarativeValidationMismatchMetric feature gates

pkg/features/kube_features.go

@@ -153,6 +153,21 @@ const (
 	// Enable usage of Provision of PVCs from snapshots in other namespaces
 	CrossNamespaceVolumeDataSource featuregate.Feature = "CrossNamespaceVolumeDataSource"
 
+	// owner: @thockin
+	// kep: http://kep.k8s.io/5073:
+	// beta: v1.33
+	//
+	// Enable declarative validation of APIs, where declared.
+	DeclarativeValidation featuregate.Feature = "DeclarativeValidation"
+
+	// owner: @thockin
+	// kep: http://kep.k8s.io/5073:
+	// beta: v1.33
+	//
+	// Enable declarative_validation_mismatch metric which outputs # of mismatch occurrences between
+	// hand-written and declarative validation rules.
+	DeclarativeValidationMismatchMetric featuregate.Feature = "DeclarativeValidationMismatchMetric"
+
 	// owner: @atiratree
 	// kep: http://kep.k8s.io/3973
 	//

pkg/features/versioned_kube_features.go

@@ -149,6 +149,14 @@ var defaultVersionedKubernetesFeatureGates = map[featuregate.Feature]featuregate
 		{Version: version.MustParse("1.32"), Default: true, LockToDefault: true, PreRelease: featuregate.GA},
 	},
 
+	DeclarativeValidation: {
+		{Version: version.MustParse("1.33"), Default: false, PreRelease: featuregate.Beta},
+	},
+
+	DeclarativeValidationMismatchMetric: {
+		{Version: version.MustParse("1.33"), Default: false, PreRelease: featuregate.Beta},
+	},
+
 	DeploymentPodReplacementPolicy: {
 		{Version: version.MustParse("1.32"), Default: false, PreRelease: featuregate.Alpha},
 	},

test/featuregates_linter/test_data/versioned_feature_list.yaml

@@ -374,6 +374,18 @@
     lockToDefault: true
     preRelease: GA
     version: "1.32"
+- name: DeclarativeValidation
+  versionedSpecs:
+  - default: false
+    lockToDefault: false
+    preRelease: Beta
+    version: "1.33"
+- name: DeclarativeValidationMismatchMetric
+  versionedSpecs:
+  - default: false
+    lockToDefault: false
+    preRelease: Beta
+    version: "1.33"
 - name: DeploymentPodReplacementPolicy
   versionedSpecs:
   - default: false