removes job scaler

pkg/kubectl/BUILD

@@ -40,12 +40,10 @@ go_test(
         "//pkg/api/legacyscheme:go_default_library",
         "//pkg/api/testapi:go_default_library",
         "//pkg/api/testing:go_default_library",
-        "//pkg/apis/batch:go_default_library",
         "//pkg/apis/core:go_default_library",
         "//pkg/apis/extensions:go_default_library",
         "//pkg/client/clientset_generated/internalclientset:go_default_library",
         "//pkg/client/clientset_generated/internalclientset/fake:go_default_library",
-        "//pkg/client/clientset_generated/internalclientset/typed/batch/internalversion:go_default_library",
         "//pkg/client/clientset_generated/internalclientset/typed/core/internalversion:go_default_library",
         "//pkg/kubectl/util:go_default_library",
         "//pkg/util/pointer:go_default_library",

pkg/kubectl/cmd/scale.go

@@ -60,7 +60,7 @@ var (
 func NewCmdScale(f cmdutil.Factory, out, errOut io.Writer) *cobra.Command {
 	options := &resource.FilenameOptions{}
 
-	validArgs := []string{"deployment", "replicaset", "replicationcontroller", "job", "statefulset"}
+	validArgs := []string{"deployment", "replicaset", "replicationcontroller", "statefulset"}
 	argAliases := kubectl.ResourceAliases(validArgs)
 
 	cmd := &cobra.Command{
@@ -145,12 +145,7 @@ func RunScale(f cmdutil.Factory, out, errOut io.Writer, cmd *cobra.Command, args
 			return err
 		}
 
-		mapping := info.ResourceMapping()
-		if mapping.Resource == "jobs" {
-			fmt.Fprintf(errOut, "%s scale job is DEPRECATED and will be removed in a future version.\n", cmd.Parent().Name())
-		}
-
-		scaler, err := f.Scaler(mapping)
+		scaler, err := f.Scaler()
 		if err != nil {
 			return err
 		}
@@ -164,7 +159,9 @@ func RunScale(f cmdutil.Factory, out, errOut io.Writer, cmd *cobra.Command, args
 			waitForReplicas = kubectl.NewRetryParams(kubectl.Interval, timeout)
 		}
 
-		if err := scaler.Scale(info.Namespace, info.Name, uint(count), precondition, retry, waitForReplicas); err != nil {
+		mapping := info.ResourceMapping()
+		gvk := mapping.GroupVersionKind.GroupVersion().WithResource(mapping.Resource)
+		if err := scaler.Scale(info.Namespace, info.Name, uint(count), precondition, retry, waitForReplicas, gvk.GroupResource()); err != nil {
 			return err
 		}
 		if cmdutil.ShouldRecord(cmd, info) {

pkg/kubectl/cmd/util/factory.go

@@ -211,7 +211,7 @@ type BuilderFactory interface {
 	// PluginRunner provides the implementation to be used to run cli plugins.
 	PluginRunner() plugins.PluginRunner
 	// Returns a Scaler for changing the size of the specified RESTMapping type or an error
-	Scaler(mapping *meta.RESTMapping) (kubectl.Scaler, error)
+	Scaler() (kubectl.Scaler, error)
 	// ScaleClient gives you back scale getter
 	ScaleClient() (scaleclient.ScalesGetter, error)
 	// Returns a Reaper for gracefully shutting down resources.

pkg/kubectl/cmd/util/factory_builder.go

@@ -103,19 +103,13 @@ func (f *ring2Factory) ScaleClient() (scaleclient.ScalesGetter, error) {
 	return scaleclient.New(restClient, mapper, dynamic.LegacyAPIPathResolverFunc, resolver), nil
 }
 
-func (f *ring2Factory) Scaler(mapping *meta.RESTMapping) (kubectl.Scaler, error) {
-	clientset, err := f.clientAccessFactory.ClientSet()
-	if err != nil {
-		return nil, err
-	}
-
+func (f *ring2Factory) Scaler() (kubectl.Scaler, error) {
 	scalesGetter, err := f.ScaleClient()
 	if err != nil {
 		return nil, err
 	}
-	gvk := mapping.GroupVersionKind.GroupVersion().WithResource(mapping.Resource)
 
-	return kubectl.ScalerFor(mapping.GroupVersionKind.GroupKind(), clientset.Batch(), scalesGetter, gvk.GroupResource()), nil
+	return kubectl.NewScaler(scalesGetter), nil
 }
 
 func (f *ring2Factory) Reaper(mapping *meta.RESTMapping) (kubectl.Reaper, error) {

pkg/kubectl/delete.go

@@ -30,12 +30,10 @@ import (
 	"k8s.io/apimachinery/pkg/util/wait"
 	scaleclient "k8s.io/client-go/scale"
 	"k8s.io/kubernetes/pkg/apis/apps"
-	"k8s.io/kubernetes/pkg/apis/batch"
 	api "k8s.io/kubernetes/pkg/apis/core"
 	"k8s.io/kubernetes/pkg/apis/extensions"
 	"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
 	appsclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/apps/internalversion"
-	batchclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/batch/internalversion"
 	coreclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/internalversion"
 	extensionsclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/extensions/internalversion"
 	deploymentutil "k8s.io/kubernetes/pkg/controller/deployment/util"
@@ -82,9 +80,6 @@ func ReaperFor(kind schema.GroupKind, c internalclientset.Interface, sc scalecli
 	case api.Kind("Pod"):
 		return &PodReaper{c.Core()}, nil
 
-	case batch.Kind("Job"):
-		return &JobReaper{c.Batch(), c.Core(), Interval, Timeout}, nil
-
 	case apps.Kind("StatefulSet"):
 		return &StatefulSetReaper{c.Apps(), c.Core(), Interval, Timeout, sc}, nil
 
@@ -114,11 +109,6 @@ type DaemonSetReaper struct {
 	client                extensionsclient.DaemonSetsGetter
 	pollInterval, timeout time.Duration
 }
-type JobReaper struct {
-	client                batchclient.JobsGetter
-	podClient             coreclient.PodsGetter
-	pollInterval, timeout time.Duration
-}
 type DeploymentReaper struct {
 	dClient               extensionsclient.DeploymentsGetter
 	rsClient              extensionsclient.ReplicaSetsGetter
@@ -155,7 +145,7 @@ func getOverlappingControllers(rcClient coreclient.ReplicationControllerInterfac
 
 func (reaper *ReplicationControllerReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *metav1.DeleteOptions) error {
 	rc := reaper.client.ReplicationControllers(namespace)
-	scaler := NewScaler(reaper.scaleClient, schema.GroupResource{Resource: "replicationcontrollers"})
+	scaler := NewScaler(reaper.scaleClient)
 	ctrl, err := rc.Get(name, metav1.GetOptions{})
 	if err != nil {
 		return err
@@ -206,7 +196,7 @@ func (reaper *ReplicationControllerReaper) Stop(namespace, name string, timeout
 		// No overlapping controllers.
 		retry := NewRetryParams(reaper.pollInterval, reaper.timeout)
 		waitForReplicas := NewRetryParams(reaper.pollInterval, timeout)
-		if err = scaler.Scale(namespace, name, 0, nil, retry, waitForReplicas); err != nil && !errors.IsNotFound(err) {
+		if err = scaler.Scale(namespace, name, 0, nil, retry, waitForReplicas, schema.GroupResource{Resource: "replicationcontrollers"}); err != nil && !errors.IsNotFound(err) {
 			return err
 		}
 	}
@@ -224,7 +214,7 @@ func getOverlappingReplicaSets(c extensionsclient.ReplicaSetInterface, rs *exten
 
 func (reaper *ReplicaSetReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *metav1.DeleteOptions) error {
 	rsc := reaper.client.ReplicaSets(namespace)
-	scaler := NewScaler(reaper.scaleClient, reaper.gr)
+	scaler := NewScaler(reaper.scaleClient)
 	rs, err := rsc.Get(name, metav1.GetOptions{})
 	if err != nil {
 		return err
@@ -276,7 +266,7 @@ func (reaper *ReplicaSetReaper) Stop(namespace, name string, timeout time.Durati
 		// No overlapping ReplicaSets.
 		retry := NewRetryParams(reaper.pollInterval, reaper.timeout)
 		waitForReplicas := NewRetryParams(reaper.pollInterval, timeout)
-		if err = scaler.Scale(namespace, name, 0, nil, retry, waitForReplicas); err != nil && !errors.IsNotFound(err) {
+		if err = scaler.Scale(namespace, name, 0, nil, retry, waitForReplicas, reaper.gr); err != nil && !errors.IsNotFound(err) {
 			return err
 		}
 	}
@@ -325,7 +315,7 @@ func (reaper *DaemonSetReaper) Stop(namespace, name string, timeout time.Duratio
 
 func (reaper *StatefulSetReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *metav1.DeleteOptions) error {
 	statefulsets := reaper.client.StatefulSets(namespace)
-	scaler := NewScaler(reaper.scaleClient, apps.Resource("statefulsets"))
+	scaler := NewScaler(reaper.scaleClient)
 	ss, err := statefulsets.Get(name, metav1.GetOptions{})
 	if err != nil {
 		return err
@@ -340,7 +330,7 @@ func (reaper *StatefulSetReaper) Stop(namespace, name string, timeout time.Durat
 
 	retry := NewRetryParams(reaper.pollInterval, reaper.timeout)
 	waitForStatefulSet := NewRetryParams(reaper.pollInterval, timeout)
-	if err = scaler.Scale(namespace, name, 0, nil, retry, waitForStatefulSet); err != nil && !errors.IsNotFound(err) {
+	if err = scaler.Scale(namespace, name, 0, nil, retry, waitForStatefulSet, apps.Resource("statefulsets")); err != nil && !errors.IsNotFound(err) {
 		return err
 	}
 
@@ -351,51 +341,6 @@ func (reaper *StatefulSetReaper) Stop(namespace, name string, timeout time.Durat
 	return statefulsets.Delete(name, deleteOptions)
 }
 
-func (reaper *JobReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *metav1.DeleteOptions) error {
-	jobs := reaper.client.Jobs(namespace)
-	pods := reaper.podClient.Pods(namespace)
-	scaler := ScalerFor(schema.GroupKind{Group: batch.GroupName, Kind: "Job"}, reaper.client, nil, schema.GroupResource{})
-	job, err := jobs.Get(name, metav1.GetOptions{})
-	if err != nil {
-		return err
-	}
-	if timeout == 0 {
-		// we will never have more active pods than job.Spec.Parallelism
-		parallelism := *job.Spec.Parallelism
-		timeout = Timeout + time.Duration(10*parallelism)*time.Second
-	}
-
-	// TODO: handle overlapping jobs
-	retry := NewRetryParams(reaper.pollInterval, reaper.timeout)
-	waitForJobs := NewRetryParams(reaper.pollInterval, timeout)
-	if err = scaler.Scale(namespace, name, 0, nil, retry, waitForJobs); err != nil && !errors.IsNotFound(err) {
-		return err
-	}
-	// at this point only dead pods are left, that should be removed
-	selector, _ := metav1.LabelSelectorAsSelector(job.Spec.Selector)
-	options := metav1.ListOptions{LabelSelector: selector.String()}
-	podList, err := pods.List(options)
-	if err != nil {
-		return err
-	}
-	errList := []error{}
-	for _, pod := range podList.Items {
-		if err := pods.Delete(pod.Name, gracePeriod); err != nil {
-			// ignores the error when the pod isn't found
-			if !errors.IsNotFound(err) {
-				errList = append(errList, err)
-			}
-		}
-	}
-	if len(errList) > 0 {
-		return utilerrors.NewAggregate(errList)
-	}
-	// once we have all the pods removed we can safely remove the job itself.
-	falseVar := false
-	deleteOptions := &metav1.DeleteOptions{OrphanDependents: &falseVar}
-	return jobs.Delete(name, deleteOptions)
-}
-
 func (reaper *DeploymentReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *metav1.DeleteOptions) error {
 	deployments := reaper.dClient.Deployments(namespace)
 	rsReaper := &ReplicaSetReaper{reaper.rsClient, reaper.pollInterval, reaper.timeout, reaper.scaleClient, schema.GroupResource{Group: reaper.gr.Group, Resource: "replicasets"}}

pkg/kubectl/delete_test.go

@@ -33,7 +33,6 @@ import (
 	"k8s.io/apimachinery/pkg/watch"
 	fakescale "k8s.io/client-go/scale/fake"
 	testcore "k8s.io/client-go/testing"
-	"k8s.io/kubernetes/pkg/apis/batch"
 	api "k8s.io/kubernetes/pkg/apis/core"
 	"k8s.io/kubernetes/pkg/apis/extensions"
 	"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/fake"
@@ -382,103 +381,6 @@ func TestReplicaSetStop(t *testing.T) {
 	}
 }
 
-func TestJobStop(t *testing.T) {
-	name := "foo"
-	ns := "default"
-	zero := int32(0)
-	tests := []struct {
-		Name            string
-		Objs            []runtime.Object
-		StopError       error
-		ExpectedActions []string
-	}{
-		{
-			Name: "OnlyOneJob",
-			Objs: []runtime.Object{
-				&batch.JobList{ // LIST
-					Items: []batch.Job{
-						{
-							ObjectMeta: metav1.ObjectMeta{
-								Name:      name,
-								Namespace: ns,
-							},
-							Spec: batch.JobSpec{
-								Parallelism: &zero,
-								Selector: &metav1.LabelSelector{
-									MatchLabels: map[string]string{"k1": "v1"},
-								},
-							},
-						},
-					},
-				},
-			},
-			StopError: nil,
-			ExpectedActions: []string{"get:jobs", "get:jobs", "update:jobs",
-				"get:jobs", "get:jobs", "list:pods", "delete:jobs"},
-		},
-		{
-			Name: "JobWithDeadPods",
-			Objs: []runtime.Object{
-				&batch.JobList{ // LIST
-					Items: []batch.Job{
-						{
-							ObjectMeta: metav1.ObjectMeta{
-								Name:      name,
-								Namespace: ns,
-							},
-							Spec: batch.JobSpec{
-								Parallelism: &zero,
-								Selector: &metav1.LabelSelector{
-									MatchLabels: map[string]string{"k1": "v1"},
-								},
-							},
-						},
-					},
-				},
-				&api.PodList{ // LIST
-					Items: []api.Pod{
-						{
-							ObjectMeta: metav1.ObjectMeta{
-								Name:      "pod1",
-								Namespace: ns,
-								Labels:    map[string]string{"k1": "v1"},
-							},
-						},
-					},
-				},
-			},
-			StopError: nil,
-			ExpectedActions: []string{"get:jobs", "get:jobs", "update:jobs",
-				"get:jobs", "get:jobs", "list:pods", "delete:pods", "delete:jobs"},
-		},
-	}
-
-	for _, test := range tests {
-		fake := fake.NewSimpleClientset(test.Objs...)
-		reaper := JobReaper{fake.Batch(), fake.Core(), time.Millisecond, time.Millisecond}
-		err := reaper.Stop(ns, name, 0, nil)
-		if !reflect.DeepEqual(err, test.StopError) {
-			t.Errorf("%s unexpected error: %v", test.Name, err)
-			continue
-		}
-
-		actions := fake.Actions()
-		if len(actions) != len(test.ExpectedActions) {
-			t.Errorf("%s unexpected actions: %v, expected %d actions got %d", test.Name, actions, len(test.ExpectedActions), len(actions))
-			continue
-		}
-		for i, expAction := range test.ExpectedActions {
-			action := strings.Split(expAction, ":")
-			if actions[i].GetVerb() != action[0] {
-				t.Errorf("%s unexpected verb: %+v, expected %s", test.Name, actions[i], expAction)
-			}
-			if actions[i].GetResource().Resource != action[1] {
-				t.Errorf("%s unexpected resource: %+v, expected %s", test.Name, actions[i], expAction)
-			}
-		}
-	}
-}
-
 func TestDeploymentStop(t *testing.T) {
 	name := "foo"
 	ns := "default"

pkg/kubectl/rolling_updater.go

@@ -400,8 +400,8 @@ func (r *RollingUpdater) scaleDown(newRc, oldRc *api.ReplicationController, desi
 
 // scalerScaleAndWait scales a controller using a Scaler and a real client.
 func (r *RollingUpdater) scaleAndWaitWithScaler(rc *api.ReplicationController, retry *RetryParams, wait *RetryParams) (*api.ReplicationController, error) {
-	scaler := NewScaler(r.scaleClient, schema.GroupResource{Resource: "replicationcontrollers"})
-	if err := scaler.Scale(rc.Namespace, rc.Name, uint(rc.Spec.Replicas), &ScalePrecondition{-1, ""}, retry, wait); err != nil {
+	scaler := NewScaler(r.scaleClient)
+	if err := scaler.Scale(rc.Namespace, rc.Name, uint(rc.Spec.Replicas), &ScalePrecondition{-1, ""}, retry, wait, schema.GroupResource{Resource: "replicationcontrollers"}); err != nil {
 		return nil, err
 	}
 	return r.rcClient.ReplicationControllers(rc.Namespace).Get(rc.Name, metav1.GetOptions{})

pkg/kubectl/scale.go

@@ -23,13 +23,11 @@ import (
 
 	autoscalingapi "k8s.io/api/autoscaling/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/kubernetes/pkg/apis/batch"
 
 	scaleclient "k8s.io/client-go/scale"
-	batchclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/batch/internalversion"
 )
 
 // TODO: Figure out if we should be waiting on initializers in the Scale() functions below.
@@ -40,30 +38,15 @@ type Scaler interface {
 	// retries in the event of resource version mismatch (if retry is not nil),
 	// and optionally waits until the status of the resource matches newSize (if wait is not nil)
 	// TODO: Make the implementation of this watch-based (#56075) once #31345 is fixed.
-	Scale(namespace, name string, newSize uint, preconditions *ScalePrecondition, retry, wait *RetryParams) error
+	Scale(namespace, name string, newSize uint, preconditions *ScalePrecondition, retry, wait *RetryParams, gr schema.GroupResource) error
 	// ScaleSimple does a simple one-shot attempt at scaling - not useful on its own, but
 	// a necessary building block for Scale
-	ScaleSimple(namespace, name string, preconditions *ScalePrecondition, newSize uint) (updatedResourceVersion string, err error)
-}
-
-// ScalerFor gets a scaler for a given resource
-func ScalerFor(kind schema.GroupKind, jobsClient batchclient.JobsGetter, scalesGetter scaleclient.ScalesGetter, gr schema.GroupResource) Scaler {
-	// it seems like jobs dont't follow "normal" scale semantics.
-	// For example it is not clear whether HPA could make use of it or not.
-	// For more details see: https://github.com/kubernetes/kubernetes/pull/58468
-	switch kind {
-	case batch.Kind("Job"):
-		return &jobScaler{jobsClient} // Either kind of job can be scaled with Batch interface.
-	default:
-		return NewScaler(scalesGetter, gr)
-	}
+	ScaleSimple(namespace, name string, preconditions *ScalePrecondition, newSize uint, gr schema.GroupResource) (updatedResourceVersion string, err error)
 }
 
 // NewScaler get a scaler for a given resource
-// Note that if you are trying to crate create a scaler for "job" then stop and use ScalerFor instead.
-// When scaling jobs is dead, we'll remove ScalerFor method.
-func NewScaler(scalesGetter scaleclient.ScalesGetter, gr schema.GroupResource) Scaler {
-	return &genericScaler{scalesGetter, gr}
+func NewScaler(scalesGetter scaleclient.ScalesGetter) Scaler {
+	return &genericScaler{scalesGetter}
 }
 
 // ScalePrecondition describes a condition that must be true for the scale to take place
@@ -97,9 +80,9 @@ func NewRetryParams(interval, timeout time.Duration) *RetryParams {
 }
 
 // ScaleCondition is a closure around Scale that facilitates retries via util.wait
-func ScaleCondition(r Scaler, precondition *ScalePrecondition, namespace, name string, count uint, updatedResourceVersion *string) wait.ConditionFunc {
+func ScaleCondition(r Scaler, precondition *ScalePrecondition, namespace, name string, count uint, updatedResourceVersion *string, gr schema.GroupResource) wait.ConditionFunc {
 	return func() (bool, error) {
-		rv, err := r.ScaleSimple(namespace, name, precondition, count)
+		rv, err := r.ScaleSimple(namespace, name, precondition, count, gr)
 		if updatedResourceVersion != nil {
 			*updatedResourceVersion = rv
 		}
@@ -128,60 +111,6 @@ func (precondition *ScalePrecondition) ValidateJob(job *batch.Job) error {
 	return nil
 }
 
-type jobScaler struct {
-	c batchclient.JobsGetter
-}
-
-// ScaleSimple is responsible for updating job's parallelism. It returns the
-// resourceVersion of the job if the update is successful.
-func (scaler *jobScaler) ScaleSimple(namespace, name string, preconditions *ScalePrecondition, newSize uint) (string, error) {
-	job, err := scaler.c.Jobs(namespace).Get(name, metav1.GetOptions{})
-	if err != nil {
-		return "", err
-	}
-	if preconditions != nil {
-		if err := preconditions.ValidateJob(job); err != nil {
-			return "", err
-		}
-	}
-	parallelism := int32(newSize)
-	job.Spec.Parallelism = &parallelism
-	updatedJob, err := scaler.c.Jobs(namespace).Update(job)
-	if err != nil {
-		return "", err
-	}
-	return updatedJob.ObjectMeta.ResourceVersion, nil
-}
-
-// Scale updates a Job to a new size, with optional precondition check (if preconditions is not nil),
-// optional retries (if retry is not nil), and then optionally waits for parallelism to reach desired
-// number, which can be less than requested based on job's current progress.
-func (scaler *jobScaler) Scale(namespace, name string, newSize uint, preconditions *ScalePrecondition, retry, waitForReplicas *RetryParams) error {
-	if preconditions == nil {
-		preconditions = &ScalePrecondition{-1, ""}
-	}
-	if retry == nil {
-		// Make it try only once, immediately
-		retry = &RetryParams{Interval: time.Millisecond, Timeout: time.Millisecond}
-	}
-	cond := ScaleCondition(scaler, preconditions, namespace, name, newSize, nil)
-	if err := wait.PollImmediate(retry.Interval, retry.Timeout, cond); err != nil {
-		return err
-	}
-	if waitForReplicas != nil {
-		job, err := scaler.c.Jobs(namespace).Get(name, metav1.GetOptions{})
-		if err != nil {
-			return err
-		}
-		err = wait.PollImmediate(waitForReplicas.Interval, waitForReplicas.Timeout, JobHasDesiredParallelism(scaler.c, job))
-		if err == wait.ErrWaitTimeout {
-			return fmt.Errorf("timed out waiting for %q to be synced", name)
-		}
-		return err
-	}
-	return nil
-}
-
 // validateGeneric ensures that the preconditions match. Returns nil if they are valid, otherwise an error
 func (precondition *ScalePrecondition) validate(scale *autoscalingapi.Scale) error {
 	if precondition.Size != -1 && int(scale.Spec.Replicas) != precondition.Size {
@@ -196,14 +125,13 @@ func (precondition *ScalePrecondition) validate(scale *autoscalingapi.Scale) err
 // genericScaler can update scales for resources in a particular namespace
 type genericScaler struct {
 	scaleNamespacer scaleclient.ScalesGetter
-	targetGR        schema.GroupResource
 }
 
 var _ Scaler = &genericScaler{}
 
 // ScaleSimple updates a scale of a given resource. It returns the resourceVersion of the scale if the update was successful.
-func (s *genericScaler) ScaleSimple(namespace, name string, preconditions *ScalePrecondition, newSize uint) (updatedResourceVersion string, err error) {
-	scale, err := s.scaleNamespacer.Scales(namespace).Get(s.targetGR, name)
+func (s *genericScaler) ScaleSimple(namespace, name string, preconditions *ScalePrecondition, newSize uint, gr schema.GroupResource) (updatedResourceVersion string, err error) {
+	scale, err := s.scaleNamespacer.Scales(namespace).Get(gr, name)
 	if err != nil {
 		return "", err
 	}
@@ -214,7 +142,7 @@ func (s *genericScaler) ScaleSimple(namespace, name string, preconditions *Scale
 	}
 
 	scale.Spec.Replicas = int32(newSize)
-	updatedScale, err := s.scaleNamespacer.Scales(namespace).Update(s.targetGR, scale)
+	updatedScale, err := s.scaleNamespacer.Scales(namespace).Update(gr, scale)
 	if err != nil {
 		return "", err
 	}
@@ -223,7 +151,7 @@ func (s *genericScaler) ScaleSimple(namespace, name string, preconditions *Scale
 
 // Scale updates a scale of a given resource to a new size, with optional precondition check (if preconditions is not nil),
 // optional retries (if retry is not nil), and then optionally waits for the status to reach desired count.
-func (s *genericScaler) Scale(namespace, resourceName string, newSize uint, preconditions *ScalePrecondition, retry, waitForReplicas *RetryParams) error {
+func (s *genericScaler) Scale(namespace, resourceName string, newSize uint, preconditions *ScalePrecondition, retry, waitForReplicas *RetryParams, gr schema.GroupResource) error {
 	if preconditions == nil {
 		preconditions = &ScalePrecondition{-1, ""}
 	}
@@ -231,7 +159,7 @@ func (s *genericScaler) Scale(namespace, resourceName string, newSize uint, prec
 		// make it try only once, immediately
 		retry = &RetryParams{Interval: time.Millisecond, Timeout: time.Millisecond}
 	}
-	cond := ScaleCondition(s, preconditions, namespace, resourceName, newSize, nil)
+	cond := ScaleCondition(s, preconditions, namespace, resourceName, newSize, nil, gr)
 	if err := wait.PollImmediate(retry.Interval, retry.Timeout, cond); err != nil {
 		return err
 	}
@@ -239,7 +167,7 @@ func (s *genericScaler) Scale(namespace, resourceName string, newSize uint, prec
 		err := wait.PollImmediate(
 			waitForReplicas.Interval,
 			waitForReplicas.Timeout,
-			scaleHasDesiredReplicas(s.scaleNamespacer, s.targetGR, resourceName, namespace, int32(newSize)))
+			scaleHasDesiredReplicas(s.scaleNamespacer, gr, resourceName, namespace, int32(newSize)))
 		if err == wait.ErrWaitTimeout {
 			return fmt.Errorf("timed out waiting for %q to be synced", resourceName)
 		}

test/e2e/apps/daemon_restart.go

@@ -257,7 +257,7 @@ var _ = SIGDescribe("DaemonRestart [Disruptive]", func() {
 		// that it had the opportunity to create/delete pods, if it were going to do so. Scaling the RC
 		// to the same size achieves this, because the scale operation advances the RC's sequence number
 		// and awaits it to be observed and reported back in the RC's status.
-		framework.ScaleRC(f.ClientSet, f.InternalClientset, f.ScalesGetter, ns, rcName, numPods, true)
+		framework.ScaleRC(f.ClientSet, f.ScalesGetter, ns, rcName, numPods, true)
 
 		// Only check the keys, the pods can be different if the kubelet updated it.
 		// TODO: Can it really?
@@ -288,9 +288,9 @@ var _ = SIGDescribe("DaemonRestart [Disruptive]", func() {
 		restarter.kill()
 		// This is best effort to try and create pods while the scheduler is down,
 		// since we don't know exactly when it is restarted after the kill signal.
-		framework.ExpectNoError(framework.ScaleRC(f.ClientSet, f.InternalClientset, f.ScalesGetter, ns, rcName, numPods+5, false))
+		framework.ExpectNoError(framework.ScaleRC(f.ClientSet, f.ScalesGetter, ns, rcName, numPods+5, false))
 		restarter.waitUp()
-		framework.ExpectNoError(framework.ScaleRC(f.ClientSet, f.InternalClientset, f.ScalesGetter, ns, rcName, numPods+5, true))
+		framework.ExpectNoError(framework.ScaleRC(f.ClientSet, f.ScalesGetter, ns, rcName, numPods+5, true))
 	})
 
 	It("Kubelet should not restart containers across restart", func() {

test/e2e/examples.go

@@ -521,7 +521,7 @@ var _ = framework.KubeDescribe("[Feature:Example]", func() {
 			Expect(err).NotTo(HaveOccurred())
 
 			By("scaling rethinkdb")
-			framework.ScaleRC(f.ClientSet, f.InternalClientset, f.ScalesGetter, ns, "rethinkdb-rc", 2, true)
+			framework.ScaleRC(f.ClientSet, f.ScalesGetter, ns, "rethinkdb-rc", 2, true)
 			checkDbInstances()
 
 			By("starting admin")
@@ -564,7 +564,7 @@ var _ = framework.KubeDescribe("[Feature:Example]", func() {
 			Expect(err).NotTo(HaveOccurred())
 
 			By("scaling hazelcast")
-			framework.ScaleRC(f.ClientSet, f.InternalClientset, f.ScalesGetter, ns, "hazelcast", 2, true)
+			framework.ScaleRC(f.ClientSet, f.ScalesGetter, ns, "hazelcast", 2, true)
 			forEachPod("name", "hazelcast", func(pod v1.Pod) {
 				_, err := framework.LookForStringInLog(ns, pod.Name, "hazelcast", "Members [2]", serverStartTimeout)
 				Expect(err).NotTo(HaveOccurred())

test/e2e/framework/deployment_util.go

@@ -31,7 +31,6 @@ import (
 	clientset "k8s.io/client-go/kubernetes"
 	scaleclient "k8s.io/client-go/scale"
 	extensionsinternal "k8s.io/kubernetes/pkg/apis/extensions"
-	"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
 	deploymentutil "k8s.io/kubernetes/pkg/controller/deployment/util"
 	testutils "k8s.io/kubernetes/test/utils"
 )
@@ -179,8 +178,8 @@ func WatchRecreateDeployment(c clientset.Interface, d *extensions.Deployment) er
 	return err
 }
 
-func ScaleDeployment(clientset clientset.Interface, internalClientset internalclientset.Interface, scalesGetter scaleclient.ScalesGetter, ns, name string, size uint, wait bool) error {
-	return ScaleResource(clientset, internalClientset, scalesGetter, ns, name, size, wait, extensionsinternal.Kind("Deployment"), extensionsinternal.Resource("deployments"))
+func ScaleDeployment(clientset clientset.Interface, scalesGetter scaleclient.ScalesGetter, ns, name string, size uint, wait bool) error {
+	return ScaleResource(clientset, scalesGetter, ns, name, size, wait, extensionsinternal.Kind("Deployment"), extensionsinternal.Resource("deployments"))
 }
 
 func RunDeployment(config testutils.DeploymentConfig) error {

test/e2e/framework/rc_util.go

@@ -85,9 +85,7 @@ func RcByNameContainer(name string, replicas int32, image string, labels map[str
 
 // ScaleRCByLabels scales an RC via ns/label lookup. If replicas == 0 it waits till
 // none are running, otherwise it does what a synchronous scale operation would do.
-//TODO(p0lyn0mial): remove internalClientset.
-//TODO(p0lyn0mial): update the callers.
-func ScaleRCByLabels(clientset clientset.Interface, internalClientset internalclientset.Interface, scalesGetter scaleclient.ScalesGetter, ns string, l map[string]string, replicas uint) error {
+func ScaleRCByLabels(clientset clientset.Interface, scalesGetter scaleclient.ScalesGetter, ns string, l map[string]string, replicas uint) error {
 	listOpts := metav1.ListOptions{LabelSelector: labels.SelectorFromSet(labels.Set(l)).String()}
 	rcs, err := clientset.CoreV1().ReplicationControllers(ns).List(listOpts)
 	if err != nil {
@@ -99,7 +97,7 @@ func ScaleRCByLabels(clientset clientset.Interface, internalClientset internalcl
 	Logf("Scaling %v RCs with labels %v in ns %v to %v replicas.", len(rcs.Items), l, ns, replicas)
 	for _, labelRC := range rcs.Items {
 		name := labelRC.Name
-		if err := ScaleRC(clientset, internalClientset, scalesGetter, ns, name, replicas, false); err != nil {
+		if err := ScaleRC(clientset, scalesGetter, ns, name, replicas, false); err != nil {
 			return err
 		}
 		rc, err := clientset.CoreV1().ReplicationControllers(ns).Get(name, metav1.GetOptions{})
@@ -159,8 +157,8 @@ func DeleteRCAndPods(clientset clientset.Interface, internalClientset internalcl
 	return DeleteResourceAndPods(clientset, internalClientset, scaleClient, api.Kind("ReplicationController"), ns, name)
 }
 
-func ScaleRC(clientset clientset.Interface, internalClientset internalclientset.Interface, scalesGetter scaleclient.ScalesGetter, ns, name string, size uint, wait bool) error {
-	return ScaleResource(clientset, internalClientset, scalesGetter, ns, name, size, wait, api.Kind("ReplicationController"), api.Resource("replicationcontrollers"))
+func ScaleRC(clientset clientset.Interface, scalesGetter scaleclient.ScalesGetter, ns, name string, size uint, wait bool) error {
+	return ScaleResource(clientset, scalesGetter, ns, name, size, wait, api.Kind("ReplicationController"), api.Resource("replicationcontrollers"))
 }
 
 func RunRC(config testutils.RCConfig) error {

test/e2e/framework/util.go

@@ -2799,7 +2799,6 @@ func RemoveAvoidPodsOffNode(c clientset.Interface, nodeName string) {
 
 func ScaleResource(
 	clientset clientset.Interface,
-	internalClientset internalclientset.Interface,
 	scalesGetter scaleclient.ScalesGetter,
 	ns, name string,
 	size uint,
@@ -2808,8 +2807,8 @@ func ScaleResource(
 	gr schema.GroupResource,
 ) error {
 	By(fmt.Sprintf("Scaling %v %s in namespace %s to %d", kind, name, ns, size))
-	scaler := kubectl.ScalerFor(kind, internalClientset.Batch(), scalesGetter, gr)
-	if err := testutils.ScaleResourceWithRetries(scaler, ns, name, size); err != nil {
+	scaler := kubectl.NewScaler(scalesGetter)
+	if err := testutils.ScaleResourceWithRetries(scaler, ns, name, size, gr); err != nil {
 		return fmt.Errorf("error while scaling RC %s to %d replicas: %v", name, size, err)
 	}
 	if !wait {

test/e2e/network/service.go

@@ -1291,7 +1291,7 @@ var _ = SIGDescribe("Services", func() {
 		}
 
 		By("Scaling down replication controller to zero")
-		framework.ScaleRC(f.ClientSet, f.InternalClientset, f.ScalesGetter, t.Namespace, rcSpec.Name, 0, false)
+		framework.ScaleRC(f.ClientSet, f.ScalesGetter, t.Namespace, rcSpec.Name, 0, false)
 
 		By("Update service to not tolerate unready services")
 		_, err = framework.UpdateService(f.ClientSet, t.Namespace, t.ServiceName, func(s *v1.Service) {

test/e2e/scalability/load.go

@@ -649,7 +649,6 @@ func scaleResource(wg *sync.WaitGroup, config testutils.RunObjectConfig, scaling
 	newSize := uint(rand.Intn(config.GetReplicas()) + config.GetReplicas()/2)
 	framework.ExpectNoError(framework.ScaleResource(
 		config.GetClient(),
-		config.GetInternalClient(),
 		config.GetScalesGetter(),
 		config.GetNamespace(),
 		config.GetName(),

test/e2e/scheduling/equivalence_cache_predicates.go

@@ -155,7 +155,7 @@ var _ = framework.KubeDescribe("EquivalenceCache [Serial]", func() {
 		By("Trying to schedule another equivalent Pod should fail due to node label has been removed.")
 		// use scale to create another equivalent pod and wait for failure event
 		WaitForSchedulerAfterAction(f, func() error {
-			err := framework.ScaleRC(f.ClientSet, f.InternalClientset, f.ScalesGetter, ns, affinityRCName, uint(replica+1), false)
+			err := framework.ScaleRC(f.ClientSet, f.ScalesGetter, ns, affinityRCName, uint(replica+1), false)
 			return err
 		}, ns, affinityRCName, false)
 		// and this new pod should be rejected since node label has been updated

test/e2e/scheduling/priorities.go

@@ -194,7 +194,7 @@ var _ = SIGDescribe("SchedulerPriorities [Serial]", func() {
 
 		By(fmt.Sprintf("Scale the RC: %s to len(nodeList.Item)-1 : %v.", rc.Name, len(nodeList.Items)-1))
 
-		framework.ScaleRC(f.ClientSet, f.InternalClientset, f.ScalesGetter, ns, rc.Name, uint(len(nodeList.Items)-1), true)
+		framework.ScaleRC(f.ClientSet, f.ScalesGetter, ns, rc.Name, uint(len(nodeList.Items)-1), true)
 		testPods, err := cs.CoreV1().Pods(ns).List(metav1.ListOptions{
 			LabelSelector: "name=scheduler-priority-avoid-pod",
 		})

test/e2e/scheduling/rescheduler.go

@@ -68,8 +68,8 @@ var _ = SIGDescribe("Rescheduler [Serial]", func() {
 		deployment := deployments.Items[0]
 		replicas := uint(*(deployment.Spec.Replicas))
 
-		err = framework.ScaleDeployment(f.ClientSet, f.InternalClientset, f.ScalesGetter, metav1.NamespaceSystem, deployment.Name, replicas+1, true)
-		defer framework.ExpectNoError(framework.ScaleDeployment(f.ClientSet, f.InternalClientset, f.ScalesGetter, metav1.NamespaceSystem, deployment.Name, replicas, true))
+		err = framework.ScaleDeployment(f.ClientSet, f.ScalesGetter, metav1.NamespaceSystem, deployment.Name, replicas+1, true)
+		defer framework.ExpectNoError(framework.ScaleDeployment(f.ClientSet, f.ScalesGetter, metav1.NamespaceSystem, deployment.Name, replicas, true))
 		framework.ExpectNoError(err)
 
 	})
@@ -80,7 +80,7 @@ func reserveAllCpu(f *framework.Framework, id string, millicores int) error {
 	replicas := millicores / 100
 
 	reserveCpu(f, id, 1, 100)
-	framework.ExpectNoError(framework.ScaleRC(f.ClientSet, f.InternalClientset, f.ScalesGetter, f.Namespace.Name, id, uint(replicas), false))
+	framework.ExpectNoError(framework.ScaleRC(f.ClientSet, f.ScalesGetter, f.Namespace.Name, id, uint(replicas), false))
 
 	for start := time.Now(); time.Since(start) < timeout; time.Sleep(10 * time.Second) {
 		pods, err := framework.GetPodsInNamespace(f.ClientSet, f.Namespace.Name, framework.ImagePullerLabels)

test/utils/update_resources.go

@@ -20,6 +20,7 @@ import (
 	"fmt"
 	"time"
 
+	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/kubernetes/pkg/kubectl"
 )
 
@@ -32,10 +33,10 @@ const (
 	waitRetryTImeout    = 5 * time.Minute
 )
 
-func ScaleResourceWithRetries(scaler kubectl.Scaler, namespace, name string, size uint) error {
+func ScaleResourceWithRetries(scaler kubectl.Scaler, namespace, name string, size uint, gr schema.GroupResource) error {
 	waitForScale := kubectl.NewRetryParams(updateRetryInterval, updateRetryTimeout)
 	waitForReplicas := kubectl.NewRetryParams(waitRetryInterval, waitRetryTImeout)
-	if err := scaler.Scale(namespace, name, size, nil, waitForScale, waitForReplicas); err != nil {
+	if err := scaler.Scale(namespace, name, size, nil, waitForScale, waitForReplicas, gr); err != nil {
 		return fmt.Errorf("Error while scaling %s to %d replicas: %v", name, size, err)
 	}
 	return nil