clean up unnecessary field

Kubernetes-commit: 3e96127af1d33b7d958d6cb328eaf06b49904d46

pkg/endpoints/groupversion.go

@@ -34,7 +34,6 @@ import (
 	"k8s.io/apiserver/pkg/endpoints/handlers/fieldmanager"
 	"k8s.io/apiserver/pkg/registry/rest"
 	"k8s.io/apiserver/pkg/storageversion"
-	"k8s.io/kube-openapi/pkg/validation/spec"
 )
 
 // ConvertabilityChecker indicates what versions a GroupKind is available in.
@@ -95,9 +94,6 @@ type APIGroupVersion struct {
 
 	MinRequestTimeout time.Duration
 
-	// OpenAPIModels exposes the OpenAPI models to each individual handler.
-	OpenAPIModels *spec.Swagger
-
 	// The limit on the request body size that would be accepted and decoded in a write request.
 	// 0 means no limit.
 	MaxRequestBodyBytes int64

pkg/endpoints/handlers/fieldmanager/fieldmanager_test.go

@@ -47,11 +47,16 @@ var fakeTypeConverter = func() fieldmanager.TypeConverter {
 	if err != nil {
 		panic(err)
 	}
-	spec := spec.Swagger{}
+	swag := spec.Swagger{}
-	if err := json.Unmarshal(data, &spec); err != nil {
+	if err := json.Unmarshal(data, &swag); err != nil {
 		panic(err)
 	}
-	typeConverter, err := fieldmanager.NewTypeConverter(&spec, false)
+	convertedDefs := map[string]*spec.Schema{}
+	for k, v := range swag.Definitions {
+		vCopy := v
+		convertedDefs[k] = &vCopy
+	}
+	typeConverter, err := fieldmanager.NewTypeConverter(convertedDefs, false)
 	if err != nil {
 		panic(err)
 	}

pkg/endpoints/handlers/fieldmanager/internal/fieldmanager_test.go

@@ -33,11 +33,18 @@ var fakeTypeConverter = func() internal.TypeConverter {
 	if err != nil {
 		panic(err)
 	}
+	convertedDefs := map[string]*spec.Schema{}
 	spec := spec.Swagger{}
 	if err := json.Unmarshal(data, &spec); err != nil {
 		panic(err)
 	}
-	typeConverter, err := internal.NewTypeConverter(&spec, false)
+
+	for k, v := range spec.Definitions {
+		vCopy := v
+		convertedDefs[k] = &vCopy
+	}
+
+	typeConverter, err := internal.NewTypeConverter(convertedDefs, false)
 	if err != nil {
 		panic(err)
 	}

pkg/endpoints/handlers/fieldmanager/internal/typeconverter.go

@@ -42,23 +42,14 @@ type typeConverter struct {
 
 var _ TypeConverter = &typeConverter{}
 
-// NewTypeConverter builds a TypeConverter from a spec.Swagger. This
+func NewTypeConverter(openapiSpec map[string]*spec.Schema, preserveUnknownFields bool) (TypeConverter, error) {
-// will automatically find the proper version of the object, and the
+	typeSchema, err := schemaconv.ToSchemaFromOpenAPI(openapiSpec, preserveUnknownFields)
-// corresponding schema information.
-func NewTypeConverter(openapiSpec *spec.Swagger, preserveUnknownFields bool) (TypeConverter, error) {
-	pointerDefs := map[string]*spec.Schema{}
-	for k, v := range openapiSpec.Definitions {
-		vCopy := v
-		pointerDefs[k] = &vCopy
-	}
-
-	typeSchema, err := schemaconv.ToSchemaFromOpenAPI(pointerDefs, preserveUnknownFields)
 	if err != nil {
 		return nil, fmt.Errorf("failed to convert models to schema: %v", err)
 	}
 
 	typeParser := typed.Parser{Schema: smdschema.Schema{Types: typeSchema.Types}}
-	tr := indexModels(&typeParser, pointerDefs)
+	tr := indexModels(&typeParser, openapiSpec)
 
 	return &typeConverter{parser: tr}, nil
 }

pkg/endpoints/handlers/fieldmanager/internal/versionconverter_test.go

@@ -36,11 +36,17 @@ var testTypeConverter = func() TypeConverter {
 	if err != nil {
 		panic(err)
 	}
-	spec := spec.Swagger{}
+	swag := spec.Swagger{}
-	if err := json.Unmarshal(data, &spec); err != nil {
+	if err := json.Unmarshal(data, &swag); err != nil {
 		panic(err)
 	}
-	typeConverter, err := NewTypeConverter(&spec, false)
+
+	convertedDefs := map[string]*spec.Schema{}
+	for k, v := range swag.Definitions {
+		vCopy := v
+		convertedDefs[k] = &vCopy
+	}
+	typeConverter, err := NewTypeConverter(convertedDefs, false)
 	if err != nil {
 		panic(err)
 	}

pkg/endpoints/handlers/fieldmanager/typeconverter.go

@@ -34,9 +34,14 @@ func NewDeducedTypeConverter() TypeConverter {
 	return internal.NewDeducedTypeConverter()
 }
 
-// NewTypeConverter builds a TypeConverter from a proto.Models. This
+// NewTypeConverter builds a TypeConverter from a map of OpenAPIV3 schemas.
-// will automatically find the proper version of the object, and the
+// This will automatically find the proper version of the object, and the
 // corresponding schema information.
-func NewTypeConverter(openapiSpec *spec.Swagger, preserveUnknownFields bool) (TypeConverter, error) {
+// The keys to the map must be consistent with the names
+// used by Refs within the schemas.
+// The schemas should conform to the Kubernetes Structural Schema OpenAPI
+// restrictions found in docs:
+// https://kubernetes.io/docs/tasks/extend-kubernetes/custom-resources/custom-resource-definitions/#specifying-a-structural-schema
+func NewTypeConverter(openapiSpec map[string]*spec.Schema, preserveUnknownFields bool) (TypeConverter, error) {
 	return internal.NewTypeConverter(openapiSpec, preserveUnknownFields)
 }

pkg/endpoints/installer.go

@@ -345,13 +345,6 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
 		isCreater = true
 	}
 
-	var resetFields map[fieldpath.APIVersion]*fieldpath.Set
-	if a.group.OpenAPIModels != nil {
-		if resetFieldsStrategy, isResetFieldsStrategy := storage.(rest.ResetFieldsStrategy); isResetFieldsStrategy {
-			resetFields = resetFieldsStrategy.GetResetFields()
-		}
-	}
-
 	var versionedList interface{}
 	if isLister {
 		list := lister.NewList()
@@ -680,7 +673,16 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
 	if a.group.MetaGroupVersion != nil {
 		reqScope.MetaGroupVersion = *a.group.MetaGroupVersion
 	}
-	if a.group.OpenAPIModels != nil {
+
+	// Use TypeConverter's nil-ness as a proxy for whether SSA/OpenAPI is enabled
+	// This should be removed in the future and made unconditional
+	// https://github.com/kubernetes/kubernetes/pull/114998
+	if a.group.TypeConverter != nil {
+		var resetFields map[fieldpath.APIVersion]*fieldpath.Set
+		if resetFieldsStrategy, isResetFieldsStrategy := storage.(rest.ResetFieldsStrategy); isResetFieldsStrategy {
+			resetFields = resetFieldsStrategy.GetResetFields()
+		}
+
 		reqScope.FieldManager, err = fieldmanager.NewDefaultFieldManager(
 			a.group.TypeConverter,
 			a.group.UnsafeConvertor,
@@ -695,6 +697,7 @@ func (a *APIInstaller) registerResourceHandlers(path string, storage rest.Storag
 			return nil, nil, fmt.Errorf("failed to create field manager: %v", err)
 		}
 	}
+
 	for _, action := range actions {
 		producedObject := storageMeta.ProducesObject(action.Verb)
 		if producedObject == nil {

pkg/server/genericapiserver.go

@@ -51,7 +51,7 @@ import (
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	restclient "k8s.io/client-go/rest"
 	"k8s.io/klog/v2"
-	openapibuilder2 "k8s.io/kube-openapi/pkg/builder"
+	openapibuilder3 "k8s.io/kube-openapi/pkg/builder3"
 	openapicommon "k8s.io/kube-openapi/pkg/common"
 	"k8s.io/kube-openapi/pkg/handler"
 	"k8s.io/kube-openapi/pkg/handler3"
@@ -87,7 +87,7 @@ type APIGroupInfo struct {
 
 	// StaticOpenAPISpec is the spec derived from the definitions of all resources installed together.
 	// It is set during InstallAPIGroups, InstallAPIGroup, and InstallLegacyAPIGroup.
-	StaticOpenAPISpec *spec.Swagger
+	StaticOpenAPISpec map[string]*spec.Schema
 }
 
 func (a *APIGroupInfo) destroyStorage() {
@@ -666,7 +666,16 @@ func (s preparedGenericAPIServer) NonBlockingRun(stopCh <-chan struct{}, shutdow
 }
 
 // installAPIResources is a private method for installing the REST storage backing each api groupversionresource
-func (s *GenericAPIServer) installAPIResources(apiPrefix string, apiGroupInfo *APIGroupInfo, openAPIModels *spec.Swagger) error {
+func (s *GenericAPIServer) installAPIResources(apiPrefix string, apiGroupInfo *APIGroupInfo, openAPIModels map[string]*spec.Schema) error {
+	var typeConverter fieldmanager.TypeConverter
+
+	if len(openAPIModels) > 0 {
+		var err error
+		typeConverter, err = fieldmanager.NewTypeConverter(openAPIModels, false)
+		if err != nil {
+			return err
+		}
+	}
 	var resourceInfos []*storageversion.ResourceInfo
 	for _, groupVersion := range apiGroupInfo.PrioritizedVersions {
 		if len(apiGroupInfo.VersionedResourcesStorageMap[groupVersion.Version]) == 0 {
@@ -681,16 +690,7 @@ func (s *GenericAPIServer) installAPIResources(apiPrefix string, apiGroupInfo *A
 		if apiGroupInfo.OptionsExternalVersion != nil {
 			apiGroupVersion.OptionsExternalVersion = apiGroupInfo.OptionsExternalVersion
 		}
-		apiGroupVersion.OpenAPIModels = openAPIModels
-
-		if openAPIModels != nil {
-			typeConverter, err := fieldmanager.NewTypeConverter(openAPIModels, false)
-			if err != nil {
-				return err
-			}
 		apiGroupVersion.TypeConverter = typeConverter
-		}
-
 		apiGroupVersion.MaxRequestBodyBytes = s.maxRequestBodyBytes
 
 		discoveryAPIResources, r, err := apiGroupVersion.InstallREST(s.Handler.GoRestfulContainer)
@@ -881,8 +881,10 @@ func NewDefaultAPIGroupInfo(group string, scheme *runtime.Scheme, parameterCodec
 }
 
 // getOpenAPIModels is a private method for getting the OpenAPI models
-func (s *GenericAPIServer) getOpenAPIModels(apiPrefix string, apiGroupInfos ...*APIGroupInfo) (*spec.Swagger, error) {
+func (s *GenericAPIServer) getOpenAPIModels(apiPrefix string, apiGroupInfos ...*APIGroupInfo) (map[string]*spec.Schema, error) {
-	if s.openAPIConfig == nil {
+	if s.openAPIV3Config == nil {
+		//!TODO: A future work should add a requirement that
+		// OpenAPIV3 config is required. May require some refactoring of tests.
 		return nil, nil
 	}
 	pathsToIgnore := openapiutil.NewTrie(s.openAPIConfig.IgnorePrefixes)
@@ -896,7 +898,7 @@ func (s *GenericAPIServer) getOpenAPIModels(apiPrefix string, apiGroupInfos ...*
 	}
 
 	// Build the openapi definitions for those resources and convert it to proto models
-	openAPISpec, err := openapibuilder2.BuildOpenAPIDefinitionsForResources(s.openAPIConfig, resourceNames...)
+	openAPISpec, err := openapibuilder3.BuildOpenAPIDefinitionsForResources(s.openAPIV3Config, resourceNames...)
 	if err != nil {
 		return nil, err
 	}