add feature gate

Co-authored-by: Francesco Romani <fromani@redhat.com>

pkg/features/kube_features.go

@@ -862,6 +862,22 @@ const (
 	//
 	// Enables specifying resources at pod-level.
 	PodLevelResources featuregate.Feature = "PodLevelResources"
+
+	// owner: @ffromani
+	// beta: v1.33
+	//
+	// Disables CPU Quota for containers which have exclusive CPUs allocated.
+	// Disables pod-Level CPU Quota for pods containing at least one container with exclusive CPUs allocated
+	// Exclusive CPUs for a container (init, application, sidecar) are allocated when:
+	// (1) cpumanager policy is static,
+	// (2) the pod has QoS Guaranteed,
+	// (3) the container has integer cpu request.
+	// The expected behavior is that CPU Quota for containers having exclusive CPUs allocated is disabled.
+	// Because this fix changes a long-established (but incorrect) behavior, users observing
+	// any regressions can use the DisableCPUQuotaWithExclusiveCPUs feature gate (default on) to
+	// restore the old behavior. Please file issues if you hit issues and have to use this Feature Gate.
+	// The Feature Gate will be locked to true and then removed in +2 releases (1.35) if there are no bug reported
+	DisableCPUQuotaWithExclusiveCPUs featuregate.Feature = "DisableCPUQuotaWithExclusiveCPUs"
 )
 
 func init() {

pkg/features/versioned_kube_features.go

@@ -828,4 +828,7 @@ var defaultVersionedKubernetesFeatureGates = map[featuregate.Feature]featuregate
 	zpagesfeatures.ComponentStatusz: {
 		{Version: version.MustParse("1.32"), Default: false, PreRelease: featuregate.Alpha},
 	},
+	DisableCPUQuotaWithExclusiveCPUs: {
+		{Version: version.MustParse("1.33"), Default: true, PreRelease: featuregate.Beta},
+	},
 }

test/featuregates_linter/test_data/versioned_feature_list.yaml

@@ -416,6 +416,12 @@
     lockToDefault: true
     preRelease: GA
     version: "1.31"
+- name: DisableCPUQuotaWithExclusiveCPUs
+  versionedSpecs:
+  - default: true
+    lockToDefault: false
+    preRelease: Beta
+    version: "1.33"
 - name: DisableKubeletCloudCredentialProviders
   versionedSpecs:
   - default: false