fix #73264 cpuPeriod was not reset, but used as it is if alpha gate is disabled

Signed-off-by: Sandor Szücs <sandor.szuecs@zalando.de>

pkg/kubelet/kuberuntime/kuberuntime_container_linux.go

@@ -22,6 +22,8 @@ import (
 	"time"
 
 	"k8s.io/api/core/v1"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	kubefeatures "k8s.io/kubernetes/pkg/features"
 	runtimeapi "k8s.io/kubernetes/pkg/kubelet/apis/cri/runtime/v1alpha2"
 	"k8s.io/kubernetes/pkg/kubelet/qos"
 )
@@ -67,7 +69,10 @@ func (m *kubeGenericRuntimeManager) generateLinuxContainerConfig(container *v1.C
 	if m.cpuCFSQuota {
 		// if cpuLimit.Amount is nil, then the appropriate default value is returned
 		// to allow full usage of cpu resource.
-		cpuPeriod := int64(m.cpuCFSQuotaPeriod.Duration / time.Microsecond)
+		cpuPeriod := int64(quotaPeriod)
+		if utilfeature.DefaultFeatureGate.Enabled(kubefeatures.CPUCFSQuotaPeriod) {
+			cpuPeriod = int64(m.cpuCFSQuotaPeriod.Duration / time.Microsecond)
+		}
 		cpuQuota := milliCPUToQuota(cpuLimit.MilliValue(), cpuPeriod)
 		lc.Resources.CpuQuota = cpuQuota
 		lc.Resources.CpuPeriod = cpuPeriod