rebase: update K8s packages to v0.32.1

Update K8s packages in go.mod to v0.32.1

Signed-off-by: Praveen M <m.praveen@ibm.com>

vendor/k8s.io/apimachinery/pkg/runtime/helper.go

@@ -284,3 +284,21 @@ func (e *encoderWithAllocator) Encode(obj Object, w io.Writer) error {
 func (e *encoderWithAllocator) Identifier() Identifier {
 	return e.encoder.Identifier()
 }
+
+type nondeterministicEncoderToEncoderAdapter struct {
+	NondeterministicEncoder
+}
+
+func (e nondeterministicEncoderToEncoderAdapter) Encode(obj Object, w io.Writer) error {
+	return e.EncodeNondeterministic(obj, w)
+}
+
+// UseNondeterministicEncoding returns an Encoder that encodes objects using the provided Encoder's
+// EncodeNondeterministic method if it implements NondeterministicEncoder, otherwise it returns the
+// provided Encoder as-is.
+func UseNondeterministicEncoding(encoder Encoder) Encoder {
+	if nondeterministic, ok := encoder.(NondeterministicEncoder); ok {
+		return nondeterministicEncoderToEncoderAdapter{nondeterministic}
+	}
+	return encoder
+}

vendor/k8s.io/apimachinery/pkg/runtime/interfaces.go

@@ -69,6 +69,19 @@ type Encoder interface {
 	Identifier() Identifier
 }
 
+// NondeterministicEncoder is implemented by Encoders that can serialize objects more efficiently in
+// cases where the output does not need to be deterministic.
+type NondeterministicEncoder interface {
+	Encoder
+
+	// EncodeNondeterministic writes an object to the stream. Unlike the Encode method of
+	// Encoder, EncodeNondeterministic does not guarantee that any two invocations will write
+	// the same sequence of bytes to the io.Writer. Any differences will not be significant to a
+	// generic decoder. For example, map entries and struct fields might be encoded in any
+	// order.
+	EncodeNondeterministic(Object, io.Writer) error
+}
+
 // MemoryAllocator is responsible for allocating memory.
 // By encapsulating memory allocation into its own interface, we can reuse the memory
 // across many operations in places we know it can significantly improve the performance.

vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/cbor.go

@@ -0,0 +1,389 @@
+/*
+Copyright 2024 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package cbor
+
+import (
+	"bytes"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"io"
+	"strings"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes"
+	"k8s.io/apimachinery/pkg/runtime/serializer/recognizer"
+	util "k8s.io/apimachinery/pkg/util/runtime"
+
+	"github.com/fxamacker/cbor/v2"
+)
+
+type metaFactory interface {
+	// Interpret should return the version and kind of the wire-format of the object.
+	Interpret(data []byte) (*schema.GroupVersionKind, error)
+}
+
+type defaultMetaFactory struct{}
+
+func (mf *defaultMetaFactory) Interpret(data []byte) (*schema.GroupVersionKind, error) {
+	var tm metav1.TypeMeta
+	// The input is expected to include additional map keys besides apiVersion and kind, so use
+	// lax mode for decoding into TypeMeta.
+	if err := modes.DecodeLax.Unmarshal(data, &tm); err != nil {
+		return nil, fmt.Errorf("unable to determine group/version/kind: %w", err)
+	}
+	actual := tm.GetObjectKind().GroupVersionKind()
+	return &actual, nil
+}
+
+type Serializer interface {
+	runtime.Serializer
+	runtime.NondeterministicEncoder
+	recognizer.RecognizingDecoder
+
+	// NewSerializer returns a value of this interface type rather than exporting the serializer
+	// type and returning one of those because the zero value of serializer isn't ready to
+	// use. Users aren't intended to implement cbor.Serializer themselves, and this unexported
+	// interface method is here to prevent that (https://go.dev/blog/module-compatibility).
+	private()
+}
+
+var _ Serializer = &serializer{}
+
+type options struct {
+	strict    bool
+	transcode bool
+}
+
+type Option func(*options)
+
+// Strict configures a serializer to return a strict decoding error when it encounters map keys that
+// do not correspond to a field in the target object of a decode operation. This option is disabled
+// by default.
+func Strict(s bool) Option {
+	return func(opts *options) {
+		opts.strict = s
+	}
+}
+
+// Transcode configures a serializer to transcode the "raw" bytes of a decoded runtime.RawExtension
+// or metav1.FieldsV1 object to JSON. This is enabled by default to support existing programs that
+// depend on the assumption that objects of either type contain valid JSON.
+func Transcode(s bool) Option {
+	return func(opts *options) {
+		opts.transcode = s
+	}
+}
+
+type serializer struct {
+	metaFactory metaFactory
+	creater     runtime.ObjectCreater
+	typer       runtime.ObjectTyper
+	options     options
+}
+
+func (serializer) private() {}
+
+// NewSerializer creates and returns a serializer configured with the provided options. The default
+// options are equivalent to explicitly passing Strict(false) and Transcode(true).
+func NewSerializer(creater runtime.ObjectCreater, typer runtime.ObjectTyper, options ...Option) Serializer {
+	return newSerializer(&defaultMetaFactory{}, creater, typer, options...)
+}
+
+func newSerializer(metaFactory metaFactory, creater runtime.ObjectCreater, typer runtime.ObjectTyper, options ...Option) *serializer {
+	s := &serializer{
+		metaFactory: metaFactory,
+		creater:     creater,
+		typer:       typer,
+	}
+	s.options.transcode = true
+	for _, o := range options {
+		o(&s.options)
+	}
+	return s
+}
+
+func (s *serializer) Identifier() runtime.Identifier {
+	return "cbor"
+}
+
+// Encode writes a CBOR representation of the given object.
+//
+// Because the CBOR data item written by a call to Encode is always enclosed in the "self-described
+// CBOR" tag, its encoded form always has the prefix 0xd9d9f7. This prefix is suitable for use as a
+// "magic number" for distinguishing encoded CBOR from other protocols.
+//
+// The default serialization behavior for any given object replicates the behavior of the JSON
+// serializer as far as it is necessary to allow the CBOR serializer to be used as a drop-in
+// replacement for the JSON serializer, with limited exceptions. For example, the distinction
+// between integers and floating-point numbers is preserved in CBOR due to its distinct
+// representations for each type.
+//
+// Objects implementing runtime.Unstructured will have their unstructured content encoded rather
+// than following the default behavior for their dynamic type.
+func (s *serializer) Encode(obj runtime.Object, w io.Writer) error {
+	return s.encode(modes.Encode, obj, w)
+}
+
+func (s *serializer) EncodeNondeterministic(obj runtime.Object, w io.Writer) error {
+	return s.encode(modes.EncodeNondeterministic, obj, w)
+}
+
+func (s *serializer) encode(mode modes.EncMode, obj runtime.Object, w io.Writer) error {
+	var v interface{} = obj
+	if u, ok := obj.(runtime.Unstructured); ok {
+		v = u.UnstructuredContent()
+	}
+
+	if err := modes.RejectCustomMarshalers(v); err != nil {
+		return err
+	}
+
+	if _, err := w.Write(selfDescribedCBOR); err != nil {
+		return err
+	}
+
+	return mode.MarshalTo(v, w)
+}
+
+// gvkWithDefaults returns group kind and version defaulting from provided default
+func gvkWithDefaults(actual, defaultGVK schema.GroupVersionKind) schema.GroupVersionKind {
+	if len(actual.Kind) == 0 {
+		actual.Kind = defaultGVK.Kind
+	}
+	if len(actual.Version) == 0 && len(actual.Group) == 0 {
+		actual.Group = defaultGVK.Group
+		actual.Version = defaultGVK.Version
+	}
+	if len(actual.Version) == 0 && actual.Group == defaultGVK.Group {
+		actual.Version = defaultGVK.Version
+	}
+	return actual
+}
+
+// diagnose returns the diagnostic encoding of a well-formed CBOR data item.
+func diagnose(data []byte) string {
+	diag, err := modes.Diagnostic.Diagnose(data)
+	if err != nil {
+		// Since the input must already be well-formed CBOR, converting it to diagnostic
+		// notation should not fail.
+		util.HandleError(err)
+
+		return hex.EncodeToString(data)
+	}
+	return diag
+}
+
+// unmarshal unmarshals CBOR data from the provided byte slice into a Go object. If the decoder is
+// configured to report strict errors, the first error return value may be a non-nil strict decoding
+// error. If the last error return value is non-nil, then the unmarshal failed entirely and the
+// state of the destination object should not be relied on.
+func (s *serializer) unmarshal(data []byte, into interface{}) (strict, lax error) {
+	if u, ok := into.(runtime.Unstructured); ok {
+		var content map[string]interface{}
+		defer func() {
+			switch u := u.(type) {
+			case *unstructured.UnstructuredList:
+				// UnstructuredList's implementation of SetUnstructuredContent
+				// produces different objects than those produced by a decode using
+				// UnstructuredJSONScheme:
+				//
+				//   1. SetUnstructuredContent retains the "items" key in the list's
+				//      Object field. It is omitted from Object when decoding with
+				//      UnstructuredJSONScheme.
+				//   2. SetUnstructuredContent does not populate "apiVersion" and
+				//      "kind" on each entry of its Items
+				//      field. UnstructuredJSONScheme does, inferring the singular
+				//      Kind from the list Kind.
+				//   3. SetUnstructuredContent ignores entries of "items" that are
+				//      not JSON objects or are objects without
+				//      "kind". UnstructuredJSONScheme returns an error in either
+				//      case.
+				//
+				// UnstructuredJSONScheme's behavior is replicated here.
+				var items []interface{}
+				if uncast, present := content["items"]; present {
+					var cast bool
+					items, cast = uncast.([]interface{})
+					if !cast {
+						strict, lax = nil, fmt.Errorf("items field of UnstructuredList must be encoded as an array or null if present")
+						return
+					}
+				}
+				apiVersion, _ := content["apiVersion"].(string)
+				kind, _ := content["kind"].(string)
+				kind = strings.TrimSuffix(kind, "List")
+				var unstructureds []unstructured.Unstructured
+				if len(items) > 0 {
+					unstructureds = make([]unstructured.Unstructured, len(items))
+				}
+				for i := range items {
+					object, cast := items[i].(map[string]interface{})
+					if !cast {
+						strict, lax = nil, fmt.Errorf("elements of the items field of UnstructuredList must be encoded as a map")
+						return
+					}
+
+					// As in UnstructuredJSONScheme, only set the heuristic
+					// singular GVK when both "apiVersion" and "kind" are either
+					// missing, non-string, or empty.
+					object["apiVersion"], _ = object["apiVersion"].(string)
+					object["kind"], _ = object["kind"].(string)
+					if object["apiVersion"] == "" && object["kind"] == "" {
+						object["apiVersion"] = apiVersion
+						object["kind"] = kind
+					}
+
+					if object["kind"] == "" {
+						strict, lax = nil, runtime.NewMissingKindErr(diagnose(data))
+						return
+					}
+					if object["apiVersion"] == "" {
+						strict, lax = nil, runtime.NewMissingVersionErr(diagnose(data))
+						return
+					}
+
+					unstructureds[i].Object = object
+				}
+				delete(content, "items")
+				u.Object = content
+				u.Items = unstructureds
+			default:
+				u.SetUnstructuredContent(content)
+			}
+		}()
+		into = &content
+	} else if err := modes.RejectCustomMarshalers(into); err != nil {
+		return nil, err
+	}
+
+	if !s.options.strict {
+		return nil, modes.DecodeLax.Unmarshal(data, into)
+	}
+
+	err := modes.Decode.Unmarshal(data, into)
+	// TODO: UnknownFieldError is ambiguous. It only provides the index of the first problematic
+	// map entry encountered and does not indicate which map the index refers to.
+	var unknownField *cbor.UnknownFieldError
+	if errors.As(err, &unknownField) {
+		// Unlike JSON, there are no strict errors in CBOR for duplicate map keys. CBOR maps
+		// with duplicate keys are considered invalid according to the spec and are rejected
+		// entirely.
+		return runtime.NewStrictDecodingError([]error{unknownField}), modes.DecodeLax.Unmarshal(data, into)
+	}
+	return nil, err
+}
+
+func (s *serializer) Decode(data []byte, gvk *schema.GroupVersionKind, into runtime.Object) (runtime.Object, *schema.GroupVersionKind, error) {
+	// A preliminary pass over the input to obtain the actual GVK is redundant on a successful
+	// decode into Unstructured.
+	if _, ok := into.(runtime.Unstructured); ok {
+		if _, unmarshalErr := s.unmarshal(data, into); unmarshalErr != nil {
+			actual, interpretErr := s.metaFactory.Interpret(data)
+			if interpretErr != nil {
+				return nil, nil, interpretErr
+			}
+
+			if gvk != nil {
+				*actual = gvkWithDefaults(*actual, *gvk)
+			}
+
+			return nil, actual, unmarshalErr
+		}
+
+		actual := into.GetObjectKind().GroupVersionKind()
+		if len(actual.Kind) == 0 {
+			return nil, &actual, runtime.NewMissingKindErr(diagnose(data))
+		}
+		if len(actual.Version) == 0 {
+			return nil, &actual, runtime.NewMissingVersionErr(diagnose(data))
+		}
+
+		return into, &actual, nil
+	}
+
+	actual, err := s.metaFactory.Interpret(data)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if gvk != nil {
+		*actual = gvkWithDefaults(*actual, *gvk)
+	}
+
+	if into != nil {
+		types, _, err := s.typer.ObjectKinds(into)
+		if err != nil {
+			return nil, actual, err
+		}
+		*actual = gvkWithDefaults(*actual, types[0])
+	}
+
+	if len(actual.Kind) == 0 {
+		return nil, actual, runtime.NewMissingKindErr(diagnose(data))
+	}
+	if len(actual.Version) == 0 {
+		return nil, actual, runtime.NewMissingVersionErr(diagnose(data))
+	}
+
+	obj, err := runtime.UseOrCreateObject(s.typer, s.creater, *actual, into)
+	if err != nil {
+		return nil, actual, err
+	}
+
+	strict, err := s.unmarshal(data, obj)
+	if err != nil {
+		return nil, actual, err
+	}
+
+	if s.options.transcode {
+		if err := transcodeRawTypes(obj); err != nil {
+			return nil, actual, err
+		}
+	}
+
+	return obj, actual, strict
+}
+
+// selfDescribedCBOR is the CBOR encoding of the head of tag number 55799. This tag, specified in
+// RFC 8949 Section 3.4.6 "Self-Described CBOR", encloses all output from the encoder, has no
+// special semantics, and is used as a magic number to recognize CBOR-encoded data items.
+//
+// See https://www.rfc-editor.org/rfc/rfc8949.html#name-self-described-cbor.
+var selfDescribedCBOR = []byte{0xd9, 0xd9, 0xf7}
+
+func (s *serializer) RecognizesData(data []byte) (ok, unknown bool, err error) {
+	return bytes.HasPrefix(data, selfDescribedCBOR), false, nil
+}
+
+// NewSerializerInfo returns a default SerializerInfo for CBOR using the given creater and typer.
+func NewSerializerInfo(creater runtime.ObjectCreater, typer runtime.ObjectTyper) runtime.SerializerInfo {
+	return runtime.SerializerInfo{
+		MediaType:        "application/cbor",
+		MediaTypeType:    "application",
+		MediaTypeSubType: "cbor",
+		Serializer:       NewSerializer(creater, typer),
+		StrictSerializer: NewSerializer(creater, typer, Strict(true)),
+		StreamSerializer: &runtime.StreamSerializerInfo{
+			Framer:     NewFramer(),
+			Serializer: NewSerializer(creater, typer, Transcode(false)),
+		},
+	}
+}

vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct/direct.go

@@ -23,14 +23,39 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes"
 )
 
+// Marshal serializes a value to CBOR. If there is more than one way to encode the value, it will
+// make the same choice as the CBOR implementation of runtime.Serializer.
+//
+// Note: Support for CBOR is at an alpha stage. If the value (or, for composite types, any of its
+// nested values) implement any of the interfaces encoding.TextMarshaler, encoding.TextUnmarshaler,
+// encoding/json.Marshaler, or encoding/json.Unmarshaler, a non-nil error will be returned unless
+// the value also implements the corresponding CBOR interfaces. This limitation will ultimately be
+// removed in favor of automatic transcoding to CBOR.
 func Marshal(src interface{}) ([]byte, error) {
+	if err := modes.RejectCustomMarshalers(src); err != nil {
+		return nil, err
+	}
 	return modes.Encode.Marshal(src)
 }
 
+// Unmarshal deserializes from CBOR into an addressable value. If there is more than one way to
+// unmarshal a value, it will make the same choice as the CBOR implementation of runtime.Serializer.
+//
+// Note: Support for CBOR is at an alpha stage. If the value (or, for composite types, any of its
+// nested values) implement any of the interfaces encoding.TextMarshaler, encoding.TextUnmarshaler,
+// encoding/json.Marshaler, or encoding/json.Unmarshaler, a non-nil error will be returned unless
+// the value also implements the corresponding CBOR interfaces. This limitation will ultimately be
+// removed in favor of automatic transcoding to CBOR.
 func Unmarshal(src []byte, dst interface{}) error {
+	if err := modes.RejectCustomMarshalers(dst); err != nil {
+		return err
+	}
 	return modes.Decode.Unmarshal(src, dst)
 }
 
+// Diagnose accepts well-formed CBOR bytes and returns a string representing the same data item in
+// human-readable diagnostic notation (RFC 8949 Section 8). The diagnostic notation is not meant to
+// be parsed.
 func Diagnose(src []byte) (string, error) {
 	return modes.Diagnostic.Diagnose(src)
 }

vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/framer.go

@@ -0,0 +1,90 @@
+/*
+Copyright 2024 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package cbor
+
+import (
+	"io"
+
+	"k8s.io/apimachinery/pkg/runtime"
+
+	"github.com/fxamacker/cbor/v2"
+)
+
+// NewFramer returns a runtime.Framer based on RFC 8742 CBOR Sequences. Each frame contains exactly
+// one encoded CBOR data item.
+func NewFramer() runtime.Framer {
+	return framer{}
+}
+
+var _ runtime.Framer = framer{}
+
+type framer struct{}
+
+func (framer) NewFrameReader(rc io.ReadCloser) io.ReadCloser {
+	return &frameReader{
+		decoder: cbor.NewDecoder(rc),
+		closer:  rc,
+	}
+}
+
+func (framer) NewFrameWriter(w io.Writer) io.Writer {
+	// Each data item in a CBOR sequence is self-delimiting (like JSON objects).
+	return w
+}
+
+type frameReader struct {
+	decoder *cbor.Decoder
+	closer  io.Closer
+
+	overflow []byte
+}
+
+func (fr *frameReader) Read(dst []byte) (int, error) {
+	if len(fr.overflow) > 0 {
+		// We read a frame that was too large for the destination slice in a previous call
+		// to Read and have bytes left over.
+		n := copy(dst, fr.overflow)
+		if n < len(fr.overflow) {
+			fr.overflow = fr.overflow[n:]
+			return n, io.ErrShortBuffer
+		}
+		fr.overflow = nil
+		return n, nil
+	}
+
+	// The Reader contract allows implementations to use all of dst[0:len(dst)] as scratch
+	// space, even if n < len(dst), but it does not allow implementations to use
+	// dst[len(dst):cap(dst)]. Slicing it up-front allows us to append to it without worrying
+	// about overwriting dst[len(dst):cap(dst)].
+	m := cbor.RawMessage(dst[0:0:len(dst)])
+	if err := fr.decoder.Decode(&m); err != nil {
+		return 0, err
+	}
+
+	if len(m) > len(dst) {
+		// The frame was too big, m has a newly-allocated underlying array to accommodate
+		// it.
+		fr.overflow = m[len(dst):]
+		return copy(dst, m), io.ErrShortBuffer
+	}
+
+	return len(m), nil
+}
+
+func (fr *frameReader) Close() error {
+	return fr.closer.Close()
+}

vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/encode.go

@@ -105,7 +105,7 @@ var Encode = EncMode{
 var EncodeNondeterministic = EncMode{
 	delegate: func() cbor.UserBufferEncMode {
 		opts := Encode.options()
-		opts.Sort = cbor.SortNone // TODO: Use cbor.SortFastShuffle after bump to v2.7.0.
+		opts.Sort = cbor.SortFastShuffle
 		em, err := opts.UserBufferEncMode()
 		if err != nil {
 			panic(err)

vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/raw.go

@@ -0,0 +1,236 @@
+/*
+Copyright 2024 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package cbor
+
+import (
+	"fmt"
+	"reflect"
+	"sync"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+)
+
+var sharedTranscoders transcoders
+
+var rawTypeTranscodeFuncs = map[reflect.Type]func(reflect.Value) error{
+	reflect.TypeFor[runtime.RawExtension](): func(rv reflect.Value) error {
+		if !rv.CanAddr() {
+			return nil
+		}
+		re := rv.Addr().Interface().(*runtime.RawExtension)
+		if re.Raw == nil {
+			// When Raw is nil it encodes to null. Don't change nil Raw values during
+			// transcoding, they would have unmarshalled from JSON as nil too.
+			return nil
+		}
+		j, err := re.MarshalJSON()
+		if err != nil {
+			return fmt.Errorf("failed to transcode RawExtension to JSON: %w", err)
+		}
+		re.Raw = j
+		return nil
+	},
+	reflect.TypeFor[metav1.FieldsV1](): func(rv reflect.Value) error {
+		if !rv.CanAddr() {
+			return nil
+		}
+		fields := rv.Addr().Interface().(*metav1.FieldsV1)
+		if fields.Raw == nil {
+			// When Raw is nil it encodes to null. Don't change nil Raw values during
+			// transcoding, they would have unmarshalled from JSON as nil too.
+			return nil
+		}
+		j, err := fields.MarshalJSON()
+		if err != nil {
+			return fmt.Errorf("failed to transcode FieldsV1 to JSON: %w", err)
+		}
+		fields.Raw = j
+		return nil
+	},
+}
+
+func transcodeRawTypes(v interface{}) error {
+	if v == nil {
+		return nil
+	}
+
+	rv := reflect.ValueOf(v)
+	return sharedTranscoders.getTranscoder(rv.Type()).fn(rv)
+}
+
+type transcoder struct {
+	fn func(rv reflect.Value) error
+}
+
+var noop = transcoder{
+	fn: func(reflect.Value) error {
+		return nil
+	},
+}
+
+type transcoders struct {
+	lock sync.RWMutex
+	m    map[reflect.Type]**transcoder
+}
+
+func (ts *transcoders) getTranscoder(rt reflect.Type) transcoder {
+	ts.lock.RLock()
+	tpp, ok := ts.m[rt]
+	ts.lock.RUnlock()
+	if ok {
+		return **tpp
+	}
+
+	ts.lock.Lock()
+	defer ts.lock.Unlock()
+	tp := ts.getTranscoderLocked(rt)
+	return *tp
+}
+
+func (ts *transcoders) getTranscoderLocked(rt reflect.Type) *transcoder {
+	if tpp, ok := ts.m[rt]; ok {
+		// A transcoder for this type was cached while waiting to acquire the lock.
+		return *tpp
+	}
+
+	// Cache the transcoder now, before populating fn, so that circular references between types
+	// don't overflow the call stack.
+	t := new(transcoder)
+	if ts.m == nil {
+		ts.m = make(map[reflect.Type]**transcoder)
+	}
+	ts.m[rt] = &t
+
+	for rawType, fn := range rawTypeTranscodeFuncs {
+		if rt == rawType {
+			t = &transcoder{fn: fn}
+			return t
+		}
+	}
+
+	switch rt.Kind() {
+	case reflect.Array:
+		te := ts.getTranscoderLocked(rt.Elem())
+		rtlen := rt.Len()
+		if rtlen == 0 || te == &noop {
+			t = &noop
+			break
+		}
+		t.fn = func(rv reflect.Value) error {
+			for i := 0; i < rtlen; i++ {
+				if err := te.fn(rv.Index(i)); err != nil {
+					return err
+				}
+			}
+			return nil
+		}
+	case reflect.Interface:
+		// Any interface value might have a dynamic type involving RawExtension. It needs to
+		// be checked.
+		t.fn = func(rv reflect.Value) error {
+			if rv.IsNil() {
+				return nil
+			}
+			rv = rv.Elem()
+			// The interface element's type is dynamic so its transcoder can't be
+			// determined statically.
+			return ts.getTranscoder(rv.Type()).fn(rv)
+		}
+	case reflect.Map:
+		rtk := rt.Key()
+		tk := ts.getTranscoderLocked(rtk)
+		rte := rt.Elem()
+		te := ts.getTranscoderLocked(rte)
+		if tk == &noop && te == &noop {
+			t = &noop
+			break
+		}
+		t.fn = func(rv reflect.Value) error {
+			iter := rv.MapRange()
+			rvk := reflect.New(rtk).Elem()
+			rve := reflect.New(rte).Elem()
+			for iter.Next() {
+				rvk.SetIterKey(iter)
+				if err := tk.fn(rvk); err != nil {
+					return err
+				}
+				rve.SetIterValue(iter)
+				if err := te.fn(rve); err != nil {
+					return err
+				}
+			}
+			return nil
+		}
+	case reflect.Pointer:
+		te := ts.getTranscoderLocked(rt.Elem())
+		if te == &noop {
+			t = &noop
+			break
+		}
+		t.fn = func(rv reflect.Value) error {
+			if rv.IsNil() {
+				return nil
+			}
+			return te.fn(rv.Elem())
+		}
+	case reflect.Slice:
+		te := ts.getTranscoderLocked(rt.Elem())
+		if te == &noop {
+			t = &noop
+			break
+		}
+		t.fn = func(rv reflect.Value) error {
+			for i := 0; i < rv.Len(); i++ {
+				if err := te.fn(rv.Index(i)); err != nil {
+					return err
+				}
+			}
+			return nil
+		}
+	case reflect.Struct:
+		type fieldTranscoder struct {
+			Index      int
+			Transcoder *transcoder
+		}
+		var fieldTranscoders []fieldTranscoder
+		for i := 0; i < rt.NumField(); i++ {
+			f := rt.Field(i)
+			tf := ts.getTranscoderLocked(f.Type)
+			if tf == &noop {
+				continue
+			}
+			fieldTranscoders = append(fieldTranscoders, fieldTranscoder{Index: i, Transcoder: tf})
+		}
+		if len(fieldTranscoders) == 0 {
+			t = &noop
+			break
+		}
+		t.fn = func(rv reflect.Value) error {
+			for _, ft := range fieldTranscoders {
+				if err := ft.Transcoder.fn(rv.Field(ft.Index)); err != nil {
+					return err
+				}
+			}
+			return nil
+		}
+	default:
+		t = &noop
+	}
+
+	return t
+}

vendor/k8s.io/apimachinery/pkg/runtime/serializer/codec_factory.go

@@ -17,9 +17,6 @@ limitations under the License.
 package serializer
 
 import (
-	"mime"
-	"strings"
-
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/runtime/serializer/json"
@@ -28,41 +25,26 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/serializer/versioning"
 )
 
-// serializerExtensions are for serializers that are conditionally compiled in
-var serializerExtensions = []func(*runtime.Scheme) (serializerType, bool){}
-
-type serializerType struct {
-	AcceptContentTypes []string
-	ContentType        string
-	FileExtensions     []string
-	// EncodesAsText should be true if this content type can be represented safely in UTF-8
-	EncodesAsText bool
-
-	Serializer       runtime.Serializer
-	PrettySerializer runtime.Serializer
-	StrictSerializer runtime.Serializer
-
-	AcceptStreamContentTypes []string
-	StreamContentType        string
-
-	Framer           runtime.Framer
-	StreamSerializer runtime.Serializer
-}
-
-func newSerializersForScheme(scheme *runtime.Scheme, mf json.MetaFactory, options CodecFactoryOptions) []serializerType {
+func newSerializersForScheme(scheme *runtime.Scheme, mf json.MetaFactory, options CodecFactoryOptions) []runtime.SerializerInfo {
 	jsonSerializer := json.NewSerializerWithOptions(
 		mf, scheme, scheme,
 		json.SerializerOptions{Yaml: false, Pretty: false, Strict: options.Strict},
 	)
-	jsonSerializerType := serializerType{
-		AcceptContentTypes: []string{runtime.ContentTypeJSON},
-		ContentType:        runtime.ContentTypeJSON,
-		FileExtensions:     []string{"json"},
-		EncodesAsText:      true,
-		Serializer:         jsonSerializer,
-
-		Framer:           json.Framer,
-		StreamSerializer: jsonSerializer,
+	jsonSerializerType := runtime.SerializerInfo{
+		MediaType:        runtime.ContentTypeJSON,
+		MediaTypeType:    "application",
+		MediaTypeSubType: "json",
+		EncodesAsText:    true,
+		Serializer:       jsonSerializer,
+		StrictSerializer: json.NewSerializerWithOptions(
+			mf, scheme, scheme,
+			json.SerializerOptions{Yaml: false, Pretty: false, Strict: true},
+		),
+		StreamSerializer: &runtime.StreamSerializerInfo{
+			EncodesAsText: true,
+			Serializer:    jsonSerializer,
+			Framer:        json.Framer,
+		},
 	}
 	if options.Pretty {
 		jsonSerializerType.PrettySerializer = json.NewSerializerWithOptions(
@@ -71,12 +53,6 @@ func newSerializersForScheme(scheme *runtime.Scheme, mf json.MetaFactory, option
 		)
 	}
 
-	strictJSONSerializer := json.NewSerializerWithOptions(
-		mf, scheme, scheme,
-		json.SerializerOptions{Yaml: false, Pretty: false, Strict: true},
-	)
-	jsonSerializerType.StrictSerializer = strictJSONSerializer
-
 	yamlSerializer := json.NewSerializerWithOptions(
 		mf, scheme, scheme,
 		json.SerializerOptions{Yaml: true, Pretty: false, Strict: options.Strict},
@@ -88,35 +64,35 @@ func newSerializersForScheme(scheme *runtime.Scheme, mf json.MetaFactory, option
 	protoSerializer := protobuf.NewSerializer(scheme, scheme)
 	protoRawSerializer := protobuf.NewRawSerializer(scheme, scheme)
 
-	serializers := []serializerType{
+	serializers := []runtime.SerializerInfo{
 		jsonSerializerType,
 		{
-			AcceptContentTypes: []string{runtime.ContentTypeYAML},
-			ContentType:        runtime.ContentTypeYAML,
-			FileExtensions:     []string{"yaml"},
-			EncodesAsText:      true,
-			Serializer:         yamlSerializer,
-			StrictSerializer:   strictYAMLSerializer,
+			MediaType:        runtime.ContentTypeYAML,
+			MediaTypeType:    "application",
+			MediaTypeSubType: "yaml",
+			EncodesAsText:    true,
+			Serializer:       yamlSerializer,
+			StrictSerializer: strictYAMLSerializer,
 		},
 		{
-			AcceptContentTypes: []string{runtime.ContentTypeProtobuf},
-			ContentType:        runtime.ContentTypeProtobuf,
-			FileExtensions:     []string{"pb"},
-			Serializer:         protoSerializer,
+			MediaType:        runtime.ContentTypeProtobuf,
+			MediaTypeType:    "application",
+			MediaTypeSubType: "vnd.kubernetes.protobuf",
+			Serializer:       protoSerializer,
 			// note, strict decoding is unsupported for protobuf,
 			// fall back to regular serializing
 			StrictSerializer: protoSerializer,
-
-			Framer:           protobuf.LengthDelimitedFramer,
-			StreamSerializer: protoRawSerializer,
+			StreamSerializer: &runtime.StreamSerializerInfo{
+				Serializer: protoRawSerializer,
+				Framer:     protobuf.LengthDelimitedFramer,
+			},
 		},
 	}
 
-	for _, fn := range serializerExtensions {
-		if serializer, ok := fn(scheme); ok {
-			serializers = append(serializers, serializer)
-		}
+	for _, f := range options.serializers {
+		serializers = append(serializers, f(scheme, scheme))
 	}
+
 	return serializers
 }
 
@@ -136,6 +112,8 @@ type CodecFactoryOptions struct {
 	Strict bool
 	// Pretty includes a pretty serializer along with the non-pretty one
 	Pretty bool
+
+	serializers []func(runtime.ObjectCreater, runtime.ObjectTyper) runtime.SerializerInfo
 }
 
 // CodecFactoryOptionsMutator takes a pointer to an options struct and then modifies it.
@@ -162,6 +140,13 @@ func DisableStrict(options *CodecFactoryOptions) {
 	options.Strict = false
 }
 
+// WithSerializer configures a serializer to be supported in addition to the default serializers.
+func WithSerializer(f func(runtime.ObjectCreater, runtime.ObjectTyper) runtime.SerializerInfo) CodecFactoryOptionsMutator {
+	return func(options *CodecFactoryOptions) {
+		options.serializers = append(options.serializers, f)
+	}
+}
+
 // NewCodecFactory provides methods for retrieving serializers for the supported wire formats
 // and conversion wrappers to define preferred internal and external versions. In the future,
 // as the internal version is used less, callers may instead use a defaulting serializer and
@@ -184,7 +169,7 @@ func NewCodecFactory(scheme *runtime.Scheme, mutators ...CodecFactoryOptionsMuta
 }
 
 // newCodecFactory is a helper for testing that allows a different metafactory to be specified.
-func newCodecFactory(scheme *runtime.Scheme, serializers []serializerType) CodecFactory {
+func newCodecFactory(scheme *runtime.Scheme, serializers []runtime.SerializerInfo) CodecFactory {
 	decoders := make([]runtime.Decoder, 0, len(serializers))
 	var accepts []runtime.SerializerInfo
 	alreadyAccepted := make(map[string]struct{})
@@ -192,38 +177,20 @@ func newCodecFactory(scheme *runtime.Scheme, serializers []serializerType) Codec
 	var legacySerializer runtime.Serializer
 	for _, d := range serializers {
 		decoders = append(decoders, d.Serializer)
-		for _, mediaType := range d.AcceptContentTypes {
-			if _, ok := alreadyAccepted[mediaType]; ok {
-				continue
-			}
-			alreadyAccepted[mediaType] = struct{}{}
-			info := runtime.SerializerInfo{
-				MediaType:        d.ContentType,
-				EncodesAsText:    d.EncodesAsText,
-				Serializer:       d.Serializer,
-				PrettySerializer: d.PrettySerializer,
-				StrictSerializer: d.StrictSerializer,
-			}
+		if _, ok := alreadyAccepted[d.MediaType]; ok {
+			continue
+		}
+		alreadyAccepted[d.MediaType] = struct{}{}
 
-			mediaType, _, err := mime.ParseMediaType(info.MediaType)
-			if err != nil {
-				panic(err)
-			}
-			parts := strings.SplitN(mediaType, "/", 2)
-			info.MediaTypeType = parts[0]
-			info.MediaTypeSubType = parts[1]
+		acceptedSerializerShallowCopy := d
+		if d.StreamSerializer != nil {
+			cloned := *d.StreamSerializer
+			acceptedSerializerShallowCopy.StreamSerializer = &cloned
+		}
+		accepts = append(accepts, acceptedSerializerShallowCopy)
 
-			if d.StreamSerializer != nil {
-				info.StreamSerializer = &runtime.StreamSerializerInfo{
-					Serializer:    d.StreamSerializer,
-					EncodesAsText: d.EncodesAsText,
-					Framer:        d.Framer,
-				}
-			}
-			accepts = append(accepts, info)
-			if mediaType == runtime.ContentTypeJSON {
-				legacySerializer = d.Serializer
-			}
+		if d.MediaType == runtime.ContentTypeJSON {
+			legacySerializer = d.Serializer
 		}
 	}
 	if legacySerializer == nil {

vendor/k8s.io/apimachinery/pkg/runtime/types.go

@@ -43,10 +43,11 @@ type TypeMeta struct {
 }
 
 const (
-	ContentTypeJSON     string = "application/json"
-	ContentTypeYAML     string = "application/yaml"
-	ContentTypeProtobuf string = "application/vnd.kubernetes.protobuf"
-	ContentTypeCBOR     string = "application/cbor"
+	ContentTypeJSON         string = "application/json"
+	ContentTypeYAML         string = "application/yaml"
+	ContentTypeProtobuf     string = "application/vnd.kubernetes.protobuf"
+	ContentTypeCBOR         string = "application/cbor"     // RFC 8949
+	ContentTypeCBORSequence string = "application/cbor-seq" // RFC 8742
 )
 
 // RawExtension is used to hold extensions in external versions.