Merge pull request #44779 from enj/enj/r/etcd_default_name_copy

Automatic merge from submit-queue (batch tested with PRs 44837, 44779, 44492)

Default ObjectNameFunc for all REST Stores

All `Store`s in Kubernetes follow the same logic for determining the name of an object.  This change makes it so that `CompleteWithOptions` defaults the `ObjectNameFunc` if it is not specified.  Thus a user does not need to remember to use `ObjectMeta.Name`.  Using the wrong field as the name can lead to an object which has a name that bypasses normal object name validation.

Signed-off-by: Monis Khan <mkhan@redhat.com>

cc @liggitt @soltysh for review

**Release note**:

```
NONE
```

federation/registry/cluster/etcd/etcd.go

@@ -51,9 +51,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &federation.Cluster{} },
 		NewListFunc:       func() runtime.Object { return &federation.ClusterList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*federation.Cluster).Name, nil
-		},
 		PredicateFunc:     cluster.MatchCluster,
 		QualifiedResource: federation.Resource("clusters"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("clusters"),

pkg/registry/apps/petset/storage/storage.go

@@ -40,9 +40,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &appsapi.StatefulSet{} },
 		NewListFunc:       func() runtime.Object { return &appsapi.StatefulSetList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*appsapi.StatefulSet).Name, nil
-		},
 		PredicateFunc:     petset.MatchStatefulSet,
 		QualifiedResource: appsapi.Resource("statefulsets"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("statefulsets"),

pkg/registry/autoscaling/horizontalpodautoscaler/storage/storage.go

@@ -39,9 +39,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &autoscaling.HorizontalPodAutoscaler{} },
 		NewListFunc:       func() runtime.Object { return &autoscaling.HorizontalPodAutoscalerList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*autoscaling.HorizontalPodAutoscaler).Name, nil
-		},
 		PredicateFunc:     horizontalpodautoscaler.MatchAutoscaler,
 		QualifiedResource: autoscaling.Resource("horizontalpodautoscalers"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("horizontalpodautoscalers"),

pkg/registry/batch/cronjob/storage/storage.go

@@ -40,9 +40,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &batch.CronJob{} },
 		NewListFunc:       func() runtime.Object { return &batch.CronJobList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*batch.CronJob).Name, nil
-		},
 		PredicateFunc:     cronjob.MatchCronJob,
 		QualifiedResource: batch.Resource("cronjobs"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("cronjobs"),

pkg/registry/batch/job/storage/storage.go

@@ -55,9 +55,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &batch.Job{} },
 		NewListFunc:       func() runtime.Object { return &batch.JobList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*batch.Job).Name, nil
-		},
 		PredicateFunc:     job.MatchJob,
 		QualifiedResource: batch.Resource("jobs"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("jobs"),

pkg/registry/certificates/certificates/storage/storage.go

@@ -39,9 +39,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST, *Approva
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &certificates.CertificateSigningRequest{} },
 		NewListFunc:       func() runtime.Object { return &certificates.CertificateSigningRequestList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*certificates.CertificateSigningRequest).Name, nil
-		},
 		PredicateFunc:     csrregistry.Matcher,
 		QualifiedResource: certificates.Resource("certificatesigningrequests"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("certificatesigningrequests"),

pkg/registry/core/configmap/storage/storage.go

@@ -37,9 +37,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.ConfigMap{} },
 		NewListFunc:       func() runtime.Object { return &api.ConfigMapList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.ConfigMap).Name, nil
-		},
 		PredicateFunc:     configmap.MatchConfigMap,
 		QualifiedResource: api.Resource("configmaps"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("configmaps"),

pkg/registry/core/endpoint/storage/storage.go

@@ -36,9 +36,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.Endpoints{} },
 		NewListFunc:       func() runtime.Object { return &api.EndpointsList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.Endpoints).Name, nil
-		},
 		PredicateFunc:     endpoint.MatchEndpoints,
 		QualifiedResource: api.Resource("endpoints"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("endpoints"),

pkg/registry/core/event/storage/storage.go

@@ -46,9 +46,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter, ttl uint64) *REST {
 		Copier:        api.Scheme,
 		NewFunc:       func() runtime.Object { return &api.Event{} },
 		NewListFunc:   func() runtime.Object { return &api.EventList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.Event).Name, nil
-		},
 		PredicateFunc: event.MatchEvent,
 		TTLFunc: func(runtime.Object, uint64, bool) (uint64, error) {
 			return ttl, nil

pkg/registry/core/limitrange/storage/storage.go

@@ -36,9 +36,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.LimitRange{} },
 		NewListFunc:       func() runtime.Object { return &api.LimitRangeList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.LimitRange).Name, nil
-		},
 		PredicateFunc:     limitrange.MatchLimitRange,
 		QualifiedResource: api.Resource("limitranges"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("limitranges"),

pkg/registry/core/namespace/storage/storage.go

@@ -55,9 +55,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST, *Finaliz
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.Namespace{} },
 		NewListFunc:       func() runtime.Object { return &api.NamespaceList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.Namespace).Name, nil
-		},
 		PredicateFunc:     namespace.MatchNamespace,
 		QualifiedResource: api.Resource("namespaces"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("namespaces"),

pkg/registry/core/node/storage/storage.go

@@ -75,9 +75,6 @@ func NewStorage(optsGetter generic.RESTOptionsGetter, kubeletClientConfig client
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.Node{} },
 		NewListFunc:       func() runtime.Object { return &api.NodeList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.Node).Name, nil
-		},
 		PredicateFunc:     node.MatchNode,
 		QualifiedResource: api.Resource("nodes"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("nodes"),

pkg/registry/core/persistentvolume/storage/storage.go

@@ -38,9 +38,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.PersistentVolume{} },
 		NewListFunc:       func() runtime.Object { return &api.PersistentVolumeList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.PersistentVolume).Name, nil
-		},
 		PredicateFunc:     persistentvolume.MatchPersistentVolumes,
 		QualifiedResource: api.Resource("persistentvolumes"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("persistentvolumes"),

pkg/registry/core/persistentvolumeclaim/storage/storage.go

@@ -38,9 +38,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.PersistentVolumeClaim{} },
 		NewListFunc:       func() runtime.Object { return &api.PersistentVolumeClaimList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.PersistentVolumeClaim).Name, nil
-		},
 		PredicateFunc:     persistentvolumeclaim.MatchPersistentVolumeClaim,
 		QualifiedResource: api.Resource("persistentvolumeclaims"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("persistentvolumeclaims"),

pkg/registry/core/pod/storage/storage.go

@@ -65,9 +65,6 @@ func NewStorage(optsGetter generic.RESTOptionsGetter, k client.ConnectionInfoGet
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.Pod{} },
 		NewListFunc:       func() runtime.Object { return &api.PodList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.Pod).Name, nil
-		},
 		PredicateFunc:     pod.MatchPod,
 		QualifiedResource: api.Resource("pods"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("pods"),

pkg/registry/core/podtemplate/storage/storage.go

@@ -35,9 +35,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.PodTemplate{} },
 		NewListFunc:       func() runtime.Object { return &api.PodTemplateList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.PodTemplate).Name, nil
-		},
 		PredicateFunc:     podtemplate.MatchPodTemplate,
 		QualifiedResource: api.Resource("podtemplates"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("podtemplates"),

pkg/registry/core/replicationcontroller/storage/storage.go

@@ -64,9 +64,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.ReplicationController{} },
 		NewListFunc:       func() runtime.Object { return &api.ReplicationControllerList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.ReplicationController).Name, nil
-		},
 		PredicateFunc:     replicationcontroller.MatchController,
 		QualifiedResource: api.Resource("replicationcontrollers"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("replicationcontrollers"),

pkg/registry/core/resourcequota/storage/storage.go

@@ -38,9 +38,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.ResourceQuota{} },
 		NewListFunc:       func() runtime.Object { return &api.ResourceQuotaList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.ResourceQuota).Name, nil
-		},
 		PredicateFunc:     resourcequota.MatchResourceQuota,
 		QualifiedResource: api.Resource("resourcequotas"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("resourcequotas"),

pkg/registry/core/secret/storage/storage.go

@@ -35,9 +35,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.Secret{} },
 		NewListFunc:       func() runtime.Object { return &api.SecretList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.Secret).Name, nil
-		},
 		PredicateFunc:     secret.Matcher,
 		QualifiedResource: api.Resource("secrets"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("secrets"),

pkg/registry/core/service/storage/storage.go

@@ -38,9 +38,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.Service{} },
 		NewListFunc:       func() runtime.Object { return &api.ServiceList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.Service).Name, nil
-		},
 		PredicateFunc:     service.MatchServices,
 		QualifiedResource: api.Resource("services"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("services"),

pkg/registry/core/serviceaccount/storage/storage.go

@@ -36,9 +36,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &api.ServiceAccount{} },
 		NewListFunc:       func() runtime.Object { return &api.ServiceAccountList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*api.ServiceAccount).Name, nil
-		},
 		PredicateFunc:     serviceaccount.Matcher,
 		QualifiedResource: api.Resource("serviceaccounts"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("serviceaccounts"),

pkg/registry/extensions/daemonset/storage/storage.go

@@ -40,9 +40,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &extensions.DaemonSet{} },
 		NewListFunc:       func() runtime.Object { return &extensions.DaemonSetList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*extensions.DaemonSet).Name, nil
-		},
 		PredicateFunc:     daemonset.MatchDaemonSet,
 		QualifiedResource: extensions.Resource("daemonsets"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("daemonsets"),

pkg/registry/extensions/deployment/storage/storage.go

@@ -66,9 +66,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST, *Rollbac
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &extensions.Deployment{} },
 		NewListFunc:       func() runtime.Object { return &extensions.DeploymentList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*extensions.Deployment).Name, nil
-		},
 		PredicateFunc:     deployment.MatchDeployment,
 		QualifiedResource: extensions.Resource("deployments"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("deployments"),

pkg/registry/extensions/ingress/storage/storage.go

@@ -40,9 +40,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &extensions.Ingress{} },
 		NewListFunc:       func() runtime.Object { return &extensions.IngressList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*extensions.Ingress).Name, nil
-		},
 		PredicateFunc:     ingress.MatchIngress,
 		QualifiedResource: extensions.Resource("ingresses"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("ingresses"),

pkg/registry/extensions/networkpolicy/storage/storage.go

@@ -37,9 +37,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &extensionsapi.NetworkPolicy{} },
 		NewListFunc:       func() runtime.Object { return &extensionsapi.NetworkPolicyList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*extensionsapi.NetworkPolicy).Name, nil
-		},
 		PredicateFunc:     networkpolicy.MatchNetworkPolicy,
 		QualifiedResource: extensionsapi.Resource("networkpolicies"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("networkpolicies"),

pkg/registry/extensions/podsecuritypolicy/storage/storage.go

@@ -37,9 +37,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &extensions.PodSecurityPolicy{} },
 		NewListFunc:       func() runtime.Object { return &extensions.PodSecurityPolicyList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*extensions.PodSecurityPolicy).Name, nil
-		},
 		PredicateFunc:     podsecuritypolicy.MatchPodSecurityPolicy,
 		QualifiedResource: extensions.Resource("podsecuritypolicies"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("podsecuritypolicies"),

pkg/registry/extensions/replicaset/storage/storage.go

@@ -63,9 +63,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &extensions.ReplicaSet{} },
 		NewListFunc:       func() runtime.Object { return &extensions.ReplicaSetList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*extensions.ReplicaSet).Name, nil
-		},
 		PredicateFunc:     replicaset.MatchReplicaSet,
 		QualifiedResource: extensions.Resource("replicasets"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("replicasets"),

pkg/registry/extensions/thirdpartyresource/storage/storage.go

@@ -46,9 +46,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &extensions.ThirdPartyResource{} },
 		NewListFunc:       func() runtime.Object { return &extensions.ThirdPartyResourceList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*extensions.ThirdPartyResource).Name, nil
-		},
 		PredicateFunc:     thirdpartyresource.Matcher,
 		QualifiedResource: resource,
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource(resource.Resource),

pkg/registry/extensions/thirdpartyresourcedata/storage/storage.go

@@ -50,9 +50,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter, group, kind string) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &extensions.ThirdPartyResourceData{} },
 		NewListFunc:       func() runtime.Object { return &extensions.ThirdPartyResourceDataList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*extensions.ThirdPartyResourceData).Name, nil
-		},
 		PredicateFunc:     thirdpartyresourcedata.Matcher,
 		QualifiedResource: resource,
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource(resource.Resource),

pkg/registry/policy/poddisruptionbudget/storage/storage.go

@@ -40,9 +40,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST) {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &policyapi.PodDisruptionBudget{} },
 		NewListFunc:       func() runtime.Object { return &policyapi.PodDisruptionBudgetList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*policyapi.PodDisruptionBudget).Name, nil
-		},
 		PredicateFunc:     poddisruptionbudget.MatchPodDisruptionBudget,
 		QualifiedResource: policyapi.Resource("poddisruptionbudgets"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("poddisruptionbudgets"),

pkg/registry/rbac/clusterrole/storage/storage.go

@@ -37,9 +37,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &rbac.ClusterRole{} },
 		NewListFunc:       func() runtime.Object { return &rbac.ClusterRoleList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*rbac.ClusterRole).Name, nil
-		},
 		PredicateFunc:     clusterrole.Matcher,
 		QualifiedResource: rbac.Resource("clusterroles"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("clusterroles"),

pkg/registry/rbac/clusterrolebinding/storage/storage.go

@@ -37,9 +37,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &rbac.ClusterRoleBinding{} },
 		NewListFunc:       func() runtime.Object { return &rbac.ClusterRoleBindingList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*rbac.ClusterRoleBinding).Name, nil
-		},
 		PredicateFunc:     clusterrolebinding.Matcher,
 		QualifiedResource: rbac.Resource("clusterrolebindings"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("clusterrolebindings"),

pkg/registry/rbac/role/storage/storage.go

@@ -37,9 +37,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &rbac.Role{} },
 		NewListFunc:       func() runtime.Object { return &rbac.RoleList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*rbac.Role).Name, nil
-		},
 		PredicateFunc:     role.Matcher,
 		QualifiedResource: rbac.Resource("roles"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("roles"),

pkg/registry/rbac/rolebinding/storage/storage.go

@@ -37,9 +37,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &rbac.RoleBinding{} },
 		NewListFunc:       func() runtime.Object { return &rbac.RoleBindingList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*rbac.RoleBinding).Name, nil
-		},
 		PredicateFunc:     rolebinding.Matcher,
 		QualifiedResource: rbac.Resource("rolebindings"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("rolebindings"),

pkg/registry/settings/podpreset/storage/storage.go

@@ -37,9 +37,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &settingsapi.PodPreset{} },
 		NewListFunc:       func() runtime.Object { return &settingsapi.PodPresetList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*settingsapi.PodPreset).GetName(), nil
-		},
 		PredicateFunc:     podpreset.Matcher,
 		QualifiedResource: settingsapi.Resource("podpresets"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("podpresets"),

pkg/registry/storage/storageclass/storage/storage.go

@@ -37,9 +37,6 @@ func NewREST(optsGetter generic.RESTOptionsGetter) *REST {
 		Copier:            api.Scheme,
 		NewFunc:           func() runtime.Object { return &storageapi.StorageClass{} },
 		NewListFunc:       func() runtime.Object { return &storageapi.StorageClassList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*storageapi.StorageClass).Name, nil
-		},
 		PredicateFunc:     storageclass.MatchStorageClasses,
 		QualifiedResource: storageapi.Resource("storageclasses"),
 		WatchCacheSize:    cachesize.GetWatchCacheSizeByResource("storageclass"),

staging/src/k8s.io/apiserver/pkg/registry/generic/registry/store.go

@@ -1194,6 +1194,16 @@ func (e *Store) CompleteWithOptions(options *generic.StoreOptions) error {
 
 	e.EnableGarbageCollection = opts.EnableGarbageCollection
 
+	if e.ObjectNameFunc == nil {
+		e.ObjectNameFunc = func(obj runtime.Object) (string, error) {
+			accessor, err := meta.Accessor(obj)
+			if err != nil {
+				return "", err
+			}
+			return accessor.GetName(), nil
+		}
+	}
+
 	if e.Storage == nil {
 		capacity := DefaultWatchCacheSize
 		if e.WatchCacheSize != 0 {

staging/src/k8s.io/kube-aggregator/pkg/registry/apiservice/etcd/etcd.go

@@ -36,9 +36,6 @@ func NewREST(scheme *runtime.Scheme, optsGetter generic.RESTOptionsGetter) *REST
 		Copier:            scheme,
 		NewFunc:           func() runtime.Object { return &apiregistration.APIService{} },
 		NewListFunc:       func() runtime.Object { return &apiregistration.APIServiceList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*apiregistration.APIService).Name, nil
-		},
 		PredicateFunc:     apiservice.MatchAPIService,
 		QualifiedResource: apiregistration.Resource("apiservices"),
 		WatchCacheSize:    100,

staging/src/k8s.io/sample-apiserver/pkg/registry/wardle/etcd.go

@@ -36,9 +36,6 @@ func NewREST(scheme *runtime.Scheme, optsGetter generic.RESTOptionsGetter) *REST
 		Copier:            scheme,
 		NewFunc:           func() runtime.Object { return &wardle.Flunder{} },
 		NewListFunc:       func() runtime.Object { return &wardle.FlunderList{} },
-		ObjectNameFunc: func(obj runtime.Object) (string, error) {
-			return obj.(*wardle.Flunder).Name, nil
-		},
 		PredicateFunc:     MatchFlunder,
 		QualifiedResource: wardle.Resource("flunders"),