Address review comments.

hack/test-cmd.sh

@@ -964,6 +964,7 @@ __EOF__
   kube::test::get_object_assert 'job pi' "{{$job_parallelism_field}}" '2'
   # Clean-up
   kubectl delete job/pi "${kube_flags[@]}"
+  # TODO(madhusudancs): Fix this when Scale group issues are resolved (see issue #18528).
   # ### Scale a deployment
   # kubectl create -f examples/extensions/deployment.yaml "${kube_flags[@]}"
   # # Command

pkg/apis/extensions/helpers.go

@@ -16,7 +16,7 @@ limitations under the License.
 
 package extensions
 
-// TODO(madhusudancs): Fix this when Scale group issues are resolved.
+// TODO(madhusudancs): Fix this when Scale group issues are resolved (see issue #18528).
 // import (
 // 	"fmt"
 

pkg/apis/extensions/types.go

@@ -248,7 +248,7 @@ type DeploymentSpec struct {
 	// Defaults to 0 (pod will be considered available as soon as it is ready)
 	MinReadySeconds int `json:"minReadySeconds,omitempty"`
 
-	// The number of old ReplicationControllers to retain to allow rollback.
+	// The number of old ReplicaSets to retain to allow rollback.
 	// This is a pointer to distinguish between explicit zero and not specified.
 	RevisionHistoryLimit *int `json:"revisionHistoryLimit,omitempty"`
 

pkg/apis/extensions/v1beta1/types.go

@@ -199,7 +199,7 @@ type ThirdPartyResourceData struct {
 	Data []byte `json:"data,omitempty"`
 }
 
-// Deployment enables declarative updates for Pods and ReplicationControllers.
+// Deployment enables declarative updates for Pods and ReplicaSets.
 type Deployment struct {
 	unversioned.TypeMeta `json:",inline"`
 	// Standard object metadata.
@@ -218,7 +218,7 @@ type DeploymentSpec struct {
 	// zero and not specified. Defaults to 1.
 	Replicas *int32 `json:"replicas,omitempty"`
 
-	// Label selector for pods. Existing ReplicationControllers whose pods are
+	// Label selector for pods. Existing ReplicaSets whose pods are
 	// selected by this will be the ones affected by this deployment.
 	Selector *LabelSelector `json:"selector,omitempty"`
 
@@ -233,7 +233,7 @@ type DeploymentSpec struct {
 	// Defaults to 0 (pod will be considered available as soon as it is ready)
 	MinReadySeconds int32 `json:"minReadySeconds,omitempty"`
 
-	// The number of old ReplicationControllers to retain to allow rollback.
+	// The number of old ReplicaSets to retain to allow rollback.
 	// This is a pointer to distinguish between explicit zero and not specified.
 	RevisionHistoryLimit *int32 `json:"revisionHistoryLimit,omitempty"`
 

pkg/apis/extensions/v1beta1/types_swagger_doc_generated.go

@@ -147,7 +147,7 @@ func (DaemonSetUpdateStrategy) SwaggerDoc() map[string]string {
 }
 
 var map_Deployment = map[string]string{
-	"":         "Deployment enables declarative updates for Pods and ReplicationControllers.",
+	"":         "Deployment enables declarative updates for Pods and ReplicaSets.",
 	"metadata": "Standard object metadata.",
 	"spec":     "Specification of the desired behavior of the Deployment.",
 	"status":   "Most recently observed status of the Deployment.",
@@ -181,11 +181,11 @@ func (DeploymentRollback) SwaggerDoc() map[string]string {
 var map_DeploymentSpec = map[string]string{
 	"":                     "DeploymentSpec is the specification of the desired behavior of the Deployment.",
 	"replicas":             "Number of desired pods. This is a pointer to distinguish between explicit zero and not specified. Defaults to 1.",
-	"selector":             "Label selector for pods. Existing ReplicationControllers whose pods are selected by this will be the ones affected by this deployment.",
+	"selector":             "Label selector for pods. Existing ReplicaSets whose pods are selected by this will be the ones affected by this deployment.",
 	"template":             "Template describes the pods that will be created.",
 	"strategy":             "The deployment strategy to use to replace existing pods with new ones.",
 	"minReadySeconds":      "Minimum number of seconds for which a newly created pod should be ready without any of its container crashing, for it to be considered available. Defaults to 0 (pod will be considered available as soon as it is ready)",
-	"revisionHistoryLimit": "The number of old ReplicationControllers to retain to allow rollback. This is a pointer to distinguish between explicit zero and not specified.",
+	"revisionHistoryLimit": "The number of old ReplicaSets to retain to allow rollback. This is a pointer to distinguish between explicit zero and not specified.",
 	"paused":               "Indicates that the deployment is paused and will not be processed by the deployment controller.",
 	"rollbackTo":           "The config this deployment is rolling back to. Will be cleared after rollback is done.",
 }

pkg/kubectl/cmd/cmd.go

@@ -125,6 +125,7 @@ __custom_func() {
    * persistentvolumeclaims (aka 'pvc')
    * quota
    * resourcequotas (aka 'quota')
+   * replicasets (aka 'rs')
    * replicationcontrollers (aka 'rc')
    * secrets
    * serviceaccounts

pkg/kubectl/describe.go

@@ -1607,12 +1607,16 @@ func (dd *DeploymentDescriber) Describe(namespace, name string) (string, error)
 	if err != nil {
 		return "", err
 	}
+	selector, err := unversioned.LabelSelectorAsSelector(d.Spec.Selector)
+	if err != nil {
+		return "", err
+	}
 	return tabbedString(func(out io.Writer) error {
 		fmt.Fprintf(out, "Name:\t%s\n", d.ObjectMeta.Name)
 		fmt.Fprintf(out, "Namespace:\t%s\n", d.ObjectMeta.Namespace)
 		fmt.Fprintf(out, "CreationTimestamp:\t%s\n", d.CreationTimestamp.Time.Format(time.RFC1123Z))
 		fmt.Fprintf(out, "Labels:\t%s\n", labels.FormatLabels(d.Labels))
-		fmt.Fprintf(out, "Selector:\t%s\n", d.Spec.Selector)
+		fmt.Fprintf(out, "Selector:\t%s\n", selector)
 		fmt.Fprintf(out, "Replicas:\t%d updated | %d total | %d available | %d unavailable\n", d.Status.UpdatedReplicas, d.Spec.Replicas, d.Status.AvailableReplicas, d.Status.UnavailableReplicas)
 		fmt.Fprintf(out, "StrategyType:\t%s\n", d.Spec.Strategy.Type)
 		fmt.Fprintf(out, "MinReadySeconds:\t%s\n", d.Spec.MinReadySeconds)

pkg/kubectl/history.go

@@ -58,7 +58,7 @@ type DeploymentHistoryViewer struct {
 	c clientset.Interface
 }
 
-// History returns a revision-to-RC map as the revision history of a deployment
+// History returns a revision-to-replicaset map as the revision history of a deployment
 func (h *DeploymentHistoryViewer) History(namespace, name string) (HistoryInfo, error) {
 	historyInfo := HistoryInfo{
 		RevisionToTemplate: make(map[int64]*api.PodTemplateSpec),
@@ -67,22 +67,22 @@ func (h *DeploymentHistoryViewer) History(namespace, name string) (HistoryInfo,
 	if err != nil {
 		return historyInfo, fmt.Errorf("failed to retrieve deployment %s: %v", name, err)
 	}
-	_, allOldRCs, err := deploymentutil.GetOldReplicaSets(*deployment, h.c)
+	_, allOldRSs, err := deploymentutil.GetOldReplicaSets(*deployment, h.c)
 	if err != nil {
-		return historyInfo, fmt.Errorf("failed to retrieve old RCs from deployment %s: %v", name, err)
+		return historyInfo, fmt.Errorf("failed to retrieve old replica sets from deployment %s: %v", name, err)
 	}
-	newRC, err := deploymentutil.GetNewReplicaSet(*deployment, h.c)
+	newRS, err := deploymentutil.GetNewReplicaSet(*deployment, h.c)
 	if err != nil {
-		return historyInfo, fmt.Errorf("failed to retrieve new RC from deployment %s: %v", name, err)
+		return historyInfo, fmt.Errorf("failed to retrieve new replica set from deployment %s: %v", name, err)
 	}
-	allRCs := append(allOldRCs, newRC)
-	for _, rc := range allRCs {
-		v, err := deploymentutil.Revision(rc)
+	allRSs := append(allOldRSs, newRS)
+	for _, rs := range allRSs {
+		v, err := deploymentutil.Revision(rs)
 		if err != nil {
 			continue
 		}
-		historyInfo.RevisionToTemplate[v] = rc.Spec.Template
-		changeCause := getChangeCause(rc)
+		historyInfo.RevisionToTemplate[v] = rs.Spec.Template
+		changeCause := getChangeCause(rs)
 		if historyInfo.RevisionToTemplate[v].Annotations == nil {
 			historyInfo.RevisionToTemplate[v].Annotations = make(map[string]string)
 		}

pkg/kubectl/scale.go

@@ -48,7 +48,7 @@ func ScalerFor(kind unversioned.GroupKind, c client.Interface) (Scaler, error) {
 		return &ReplicaSetScaler{c.Extensions()}, nil
 	case extensions.Kind("Job"):
 		return &JobScaler{c.Extensions()}, nil
-		// TODO(madhusudancs): Fix this when Scale group issues are resolved.
+		// TODO(madhusudancs): Fix this when Scale group issues are resolved (see issue #18528).
 		// case extensions.Kind("Deployment"):
 		// 	return &DeploymentScaler{c.Extensions()}, nil
 	}
@@ -328,7 +328,7 @@ func (precondition *ScalePrecondition) ValidateDeployment(deployment *extensions
 	return nil
 }
 
-// TODO(madhusudancs): Fix this when Scale group issues are resolved.
+// TODO(madhusudancs): Fix this when Scale group issues are resolved (see issue #18528).
 // type DeploymentScaler struct {
 // 	c client.ExtensionsInterface
 // }

pkg/kubectl/scale_test.go

@@ -488,7 +488,7 @@ func TestValidateJob(t *testing.T) {
 	}
 }
 
-// TODO(madhusudancs): Fix this when Scale group issues are resolved.
+// TODO(madhusudancs): Fix this when Scale group issues are resolved (see issue #18528).
 
 // type ErrorScales struct {
 // 	testclient.FakeScales

pkg/master/master.go

@@ -624,7 +624,7 @@ func (m *Master) getExtensionResources(c *Config) map[string]rest.Storage {
 		deploymentStorage := deploymentetcd.NewStorage(dbClient("deployments"), storageDecorator)
 		storage["deployments"] = deploymentStorage.Deployment
 		storage["deployments/status"] = deploymentStorage.Status
-		// TODO(madhusudancs): Install scale when Scale group issues are fixed.
+		// TODO(madhusudancs): Install scale when Scale group issues are fixed (see issue #18528).
 		// storage["deployments/scale"] = deploymentStorage.Scale
 		storage["deployments/rollback"] = deploymentStorage.Rollback
 	}

pkg/registry/deployment/etcd/etcd.go

@@ -183,7 +183,7 @@ type ScaleREST struct {
 	registry *deployment.Registry
 }
 
-// TODO(madhusudancs): Fix this when Scale group issues are resolved.
+// TODO(madhusudancs): Fix this when Scale group issues are resolved (see issue #18528).
 
 //  // ScaleREST implements Patcher
 // var _ = rest.Patcher(&ScaleREST{})

pkg/registry/deployment/etcd/etcd_test.go

@@ -179,7 +179,7 @@ func TestWatch(t *testing.T) {
 	)
 }
 
-// TODO(madhusudancs): Fix this when Scale group issues are resolved.
+// TODO(madhusudancs): Fix this when Scale group issues are resolved  (see issue #18528).
 
 // func validNewScale() *extensions.Scale {
 // 	return &extensions.Scale{

pkg/util/deployment/deployment.go

@@ -55,7 +55,7 @@ func GetOldReplicaSets(deployment extensions.Deployment, c clientset.Interface)
 
 // GetOldReplicaSetsFromLists returns two sets of old replica sets targeted by the given Deployment; get PodList and ReplicaSetList with input functions.
 // Note that the first set of old replica sets doesn't include the ones with no pods, and the second set of old replica sets include all old replica sets.
-func GetOldReplicaSetsFromLists(deployment extensions.Deployment, c clientset.Interface, getPodList func(string, api.ListOptions) (*api.PodList, error), getRcList func(string, api.ListOptions) ([]extensions.ReplicaSet, error)) ([]*extensions.ReplicaSet, []*extensions.ReplicaSet, error) {
+func GetOldReplicaSetsFromLists(deployment extensions.Deployment, c clientset.Interface, getPodList func(string, api.ListOptions) (*api.PodList, error), getRSList func(string, api.ListOptions) ([]extensions.ReplicaSet, error)) ([]*extensions.ReplicaSet, []*extensions.ReplicaSet, error) {
 	namespace := deployment.ObjectMeta.Namespace
 	selector, err := unversioned.LabelSelectorAsSelector(deployment.Spec.Selector)
 	if err != nil {
@@ -72,7 +72,7 @@ func GetOldReplicaSetsFromLists(deployment extensions.Deployment, c clientset.In
 	// TODO: Right now we list all replica sets and then filter. We should add an API for this.
 	oldRSs := map[string]extensions.ReplicaSet{}
 	allOldRSs := map[string]extensions.ReplicaSet{}
-	rsList, err := getRcList(namespace, options)
+	rsList, err := getRSList(namespace, options)
 	if err != nil {
 		return nil, nil, fmt.Errorf("error listing replica sets: %v", err)
 	}
@@ -119,14 +119,14 @@ func GetNewReplicaSet(deployment extensions.Deployment, c clientset.Interface) (
 
 // GetNewReplicaSetFromList returns a replica set that matches the intent of the given deployment; get ReplicaSetList with the input function.
 // Returns nil if the new replica set doesnt exist yet.
-func GetNewReplicaSetFromList(deployment extensions.Deployment, c clientset.Interface, getRcList func(string, api.ListOptions) ([]extensions.ReplicaSet, error)) (*extensions.ReplicaSet, error) {
+func GetNewReplicaSetFromList(deployment extensions.Deployment, c clientset.Interface, getRSList func(string, api.ListOptions) ([]extensions.ReplicaSet, error)) (*extensions.ReplicaSet, error) {
 	namespace := deployment.ObjectMeta.Namespace
 	selector, err := unversioned.LabelSelectorAsSelector(deployment.Spec.Selector)
 	if err != nil {
 		return nil, fmt.Errorf("failed to convert LabelSelector to Selector: %v", err)
 	}
 
-	rsList, err := getRcList(namespace, api.ListOptions{LabelSelector: selector})
+	rsList, err := getRSList(namespace, api.ListOptions{LabelSelector: selector})
 	if err != nil {
 		return nil, fmt.Errorf("error listing ReplicaSets: %v", err)
 	}

pkg/util/labels/labels.go

@@ -81,9 +81,7 @@ func CloneSelectorAndAddLabel(selector *unversioned.LabelSelector, labelKey stri
 			newMExps[i].Operator = me.Operator
 			if me.Values != nil {
 				newMExps[i].Values = make([]string, len(me.Values))
-				for j, val := range me.Values {
-					newMExps[i].Values[j] = val
-				}
+				copy(newMExps[i].Values, me.Values)
 			} else {
 				newMExps[i].Values = nil
 			}

test/e2e/horizontal_pod_autoscaling.go

@@ -41,7 +41,7 @@ var _ = Describe("Horizontal pod autoscaling (scale resource: CPU) [Serial] [Slo
 	titleUp := "Should scale from 1 pod to 3 pods and from 3 to 5"
 	titleDown := "Should scale from 5 pods to 3 pods and from 3 to 1"
 
-	// TODO(madhusudancs): Fix this when Scale group issues are resolved.
+	// TODO(madhusudancs): Fix this when Scale group issues are resolved (see issue #18528).
 	// Describe("Deployment [Feature:Deployment]", func() {
 	// 	// CPU tests via deployments
 	// 	It(titleUp, func() {