fix spelling mistakes

pkg/apis/core/validation/validation.go

@@ -4855,7 +4855,7 @@ func validateScopedResourceSelectorRequirement(resourceQuotaSpec *core.ResourceQ
 		case core.ScopeSelectorOpIn, core.ScopeSelectorOpNotIn:
 			if len(req.Values) == 0 {
 				allErrs = append(allErrs, field.Required(fldPath.Child("values"),
-					"must be atleast one value when `operator` is 'In' or 'NotIn' for scope selector"))
+					"must be at least one value when `operator` is 'In' or 'NotIn' for scope selector"))
 			}
 		case core.ScopeSelectorOpExists, core.ScopeSelectorOpDoesNotExist:
 			if len(req.Values) != 0 {

pkg/controller/cloud/pvlcontroller.go

@@ -239,7 +239,7 @@ func (pvlc *PersistentVolumeLabelController) createPatch(vol *v1.PersistentVolum
 			newVolume.Spec.NodeAffinity.Required = new(v1.NodeSelector)
 		}
 		if len(newVolume.Spec.NodeAffinity.Required.NodeSelectorTerms) == 0 {
-			// Need atleast one term pre-allocated whose MatchExpressions can be appended to
+			// Need at least one term pre-allocated whose MatchExpressions can be appended to
 			newVolume.Spec.NodeAffinity.Required.NodeSelectorTerms = make([]v1.NodeSelectorTerm, 1)
 		}
 		// Populate NodeAffinity with requirements if there are no conflicting keys found

plugin/pkg/admission/storage/persistentvolume/label/admission.go

@@ -166,7 +166,7 @@ func (l *persistentVolumeLabel) Admit(a admission.Attributes) (err error) {
 				volume.Spec.NodeAffinity.Required = new(api.NodeSelector)
 			}
 			if len(volume.Spec.NodeAffinity.Required.NodeSelectorTerms) == 0 {
-				// Need atleast one term pre-allocated whose MatchExpressions can be appended to
+				// Need at least one term pre-allocated whose MatchExpressions can be appended to
 				volume.Spec.NodeAffinity.Required.NodeSelectorTerms = make([]api.NodeSelectorTerm, 1)
 			}
 			if nodeSelectorRequirementKeysExistInNodeSelectorTerms(requirements, volume.Spec.NodeAffinity.Required.NodeSelectorTerms) {

test/e2e/apps/statefulset.go

@@ -744,7 +744,7 @@ var _ = SIGDescribe("StatefulSet", func() {
 			framework.ExpectNoError(err)
 			ctx, cancel := watchtools.ContextWithOptionalTimeout(context.Background(), framework.StatefulPodTimeout)
 			defer cancel()
-			// we need to get UID from pod in any state and wait until stateful set controller will remove pod atleast once
+			// we need to get UID from pod in any state and wait until stateful set controller will remove pod at least once
 			_, err = watchtools.UntilWithoutRetry(ctx, w, func(event watch.Event) (bool, error) {
 				pod := event.Object.(*v1.Pod)
 				switch event.Type {

test/e2e/common/init_container.go

@@ -304,7 +304,7 @@ var _ = framework.KubeDescribe("InitContainer [NodeConformance]", func() {
 		Release: v1.12
 		Testname: init-container-fails-stops-app-restartnever-pod
 		Description: Ensure that app container is not started
-		when atleast one InitContainer fails to start and Pod has restart policy as RestartNever.
+		when at least one InitContainer fails to start and Pod has restart policy as RestartNever.
 	*/
 	framework.ConformanceIt("should not start app containers and fail the pod if init containers fail on a RestartNever pod", func() {
 		By("creating the pod")