core v1 API requires autoscaling/v1 to serve the Scale endpoint

hack/test-update-storage-objects.sh

@@ -120,7 +120,7 @@ KUBE_NEW_STORAGE_VERSIONS="storage.k8s.io/v1"
 # but KUBE_OLD_API_VERSION is the latest (storage) version.
 # Additionally use KUBE_STORAGE_MEDIA_TYPE_JSON for storage encoding.
 #######################################################
-KUBE_API_VERSIONS="v1,${KUBE_OLD_API_VERSION},${KUBE_NEW_API_VERSION}"
+KUBE_API_VERSIONS="v1,autoscaling/v1,${KUBE_OLD_API_VERSION},${KUBE_NEW_API_VERSION}"
 RUNTIME_CONFIG="api/all=false,api/v1=true,${KUBE_OLD_API_VERSION}=true,${KUBE_NEW_API_VERSION}=true"
 startApiServer ${KUBE_OLD_STORAGE_VERSIONS} ${KUBE_STORAGE_MEDIA_TYPE_JSON}
 
@@ -155,7 +155,7 @@ killApiServer
 # Still use KUBE_STORAGE_MEDIA_TYPE_JSON for storage encoding.
 #######################################################
 
-KUBE_API_VERSIONS="v1,${KUBE_NEW_API_VERSION},${KUBE_OLD_API_VERSION}"
+KUBE_API_VERSIONS="v1,autoscaling/v1,${KUBE_NEW_API_VERSION},${KUBE_OLD_API_VERSION}"
 RUNTIME_CONFIG="api/all=false,api/v1=true,${KUBE_OLD_API_VERSION}=true,${KUBE_NEW_API_VERSION}=true"
 startApiServer ${KUBE_NEW_STORAGE_VERSIONS} ${KUBE_STORAGE_MEDIA_TYPE_JSON}
 
@@ -186,7 +186,7 @@ killApiServer
 # However, change storage encoding to KUBE_STORAGE_MEDIA_TYPE_PROTOBUF.
 #######################################################
 
-KUBE_API_VERSIONS="v1,${KUBE_NEW_API_VERSION}"
+KUBE_API_VERSIONS="v1,autoscaling/v1,${KUBE_NEW_API_VERSION}"
 RUNTIME_CONFIG="api/all=false,api/v1=true,${KUBE_NEW_API_VERSION}=true"
 
 # This seems to reduce flakiness.

staging/src/k8s.io/apiserver/pkg/server/resourceconfig/helpers.go

@@ -78,9 +78,9 @@ func MergeAPIResourceConfigs(
 	if ok {
 		if allAPIFlagValue == "false" {
 			// Disable all group versions.
-			resourceConfig.DisableVersions(registry.RegisteredGroupVersions()...)
+			resourceConfig.DisableAll()
 		} else if allAPIFlagValue == "true" {
-			resourceConfig.EnableVersions(registry.RegisteredGroupVersions()...)
+			resourceConfig.EnableAll()
 		}
 	}
 

staging/src/k8s.io/apiserver/pkg/server/storage/resource_config.go

@@ -36,6 +36,18 @@ func NewResourceConfig() *ResourceConfig {
 	return &ResourceConfig{GroupVersionConfigs: map[schema.GroupVersion]bool{}}
 }
 
+func (o *ResourceConfig) DisableAll() {
+	for k := range o.GroupVersionConfigs {
+		o.GroupVersionConfigs[k] = false
+	}
+}
+
+func (o *ResourceConfig) EnableAll() {
+	for k := range o.GroupVersionConfigs {
+		o.GroupVersionConfigs[k] = true
+	}
+}
+
 // DisableVersions disables the versions entirely.
 func (o *ResourceConfig) DisableVersions(versions ...schema.GroupVersion) {
 	for _, version := range versions {