func newSerializersForScheme(scheme *runtime.Scheme, mf json.MetaFactory) []serializerType {
jsonSerializer := json.NewSerializer(mf, scheme, scheme, false)
jsonPrettySerializer := json.NewSerializer(mf, scheme, scheme, true)
yamlSerializer := json.NewYAMLSerializer(mf, scheme, scheme)
serializers := []serializerType{
{
AcceptContentTypes: []string{"application/json"},
ContentType: "application/json",
FileExtensions: []string{"json"},
EncodesAsText: true,
Serializer: jsonSerializer,
PrettySerializer: jsonPrettySerializer,
Framer: json.Framer,
StreamSerializer: jsonSerializer,
},
{
AcceptContentTypes: []string{"application/yaml"},
ContentType: "application/yaml",
FileExtensions: []string{"yaml"},
EncodesAsText: true,
Serializer: yamlSerializer,
},
}
for _, fn := range serializerExtensions {
if serializer, ok := fn(scheme); ok {
serializers = append(serializers, serializer)
}
}
return serializers
}
func newSerializersForScheme(scheme *runtime.Scheme, mf json.MetaFactory) []serializerType {
jsonSerializer := json.NewSerializer(mf, scheme, runtime.ObjectTyperToTyper(scheme), false)
jsonPrettySerializer := json.NewSerializer(mf, scheme, runtime.ObjectTyperToTyper(scheme), true)
serializers := []serializerType{
{
AcceptContentTypes: []string{"application/json"},
ContentType: "application/json",
FileExtensions: []string{"json"},
Serializer: jsonSerializer,
PrettySerializer: jsonPrettySerializer,
},
}
yamlSerializer := json.NewYAMLSerializer(mf, scheme, runtime.ObjectTyperToTyper(scheme))
serializers = append(serializers, serializerType{
AcceptContentTypes: []string{"application/yaml"},
ContentType: "application/yaml",
FileExtensions: []string{"yaml"},
Serializer: yamlSerializer,
})
for _, fn := range serializerExtensions {
if serializer, ok := fn(scheme); ok {
serializers = append(serializers, serializer)
}
}
return serializers
}
// New creates a new WebhookAuthorizer from the provided kubeconfig file.
//
// The config's cluster field is used to refer to the remote service, user refers to the returned authorizer.
//
// # clusters refers to the remote service.
// clusters:
// - name: name-of-remote-authz-service
// cluster:
// certificate-authority: /path/to/ca.pem # CA for verifying the remote service.
// server: https://authz.example.com/authorize # URL of remote service to query. Must use 'https'.
//
// # users refers to the API server's webhook configuration.
// users:
// - name: name-of-api-server
// user:
// client-certificate: /path/to/cert.pem # cert for the webhook plugin to use
// client-key: /path/to/key.pem # key matching the cert
//
// For additional HTTP configuration, refer to the kubeconfig documentation
// http://kubernetes.io/v1.1/docs/user-guide/kubeconfig-file.html.
func New(kubeConfigFile string) (*WebhookAuthorizer, error) {
for _, groupVersion := range requireEnabled {
if !registered.IsEnabledVersion(groupVersion) {
return nil, fmt.Errorf("webhook authz plugin requires enabling extension resource: %s", groupVersion)
}
}
loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
loadingRules.ExplicitPath = kubeConfigFile
loader := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, &clientcmd.ConfigOverrides{})
clientConfig, err := loader.ClientConfig()
if err != nil {
return nil, err
}
serializer := json.NewSerializer(json.DefaultMetaFactory, api.Scheme, runtime.ObjectTyperToTyper(api.Scheme), false)
clientConfig.ContentConfig.Codec = versioning.NewCodecForScheme(api.Scheme, serializer, serializer, encodeVersions, decodeVersions)
restClient, err := restclient.UnversionedRESTClientFor(clientConfig)
if err != nil {
return nil, err
}
// TODO(ericchiang): Can we ensure remote service is reachable?
return &WebhookAuthorizer{restClient}, nil
}
func TestRecognizer(t *testing.T) {
s := runtime.NewScheme()
s.AddKnownTypes(schema.GroupVersion{Version: "v1"}, &A{})
d := recognizer.NewDecoder(
json.NewSerializer(json.DefaultMetaFactory, s, s, false),
json.NewYAMLSerializer(json.DefaultMetaFactory, s, s),
)
out, _, err := d.Decode([]byte(`
kind: A
apiVersion: v1
`), nil, nil)
if err != nil {
t.Fatal(err)
}
t.Logf("%#v", out)
out, _, err = d.Decode([]byte(`
{
"kind":"A",
"apiVersion":"v1"
}
`), nil, nil)
if err != nil {
t.Fatal(err)
}
t.Logf("%#v", out)
}
func init() {
jsonSerializer := json.NewSerializer(json.DefaultMetaFactory, api.Scheme, api.Scheme, true)
Codec = versioning.NewCodecForScheme(
api.Scheme,
jsonSerializer,
jsonSerializer,
[]unversioned.GroupVersion{{Version: Version}},
[]unversioned.GroupVersion{{Version: runtime.APIVersionInternal}},
)
}
func init() {
jsonSerializer := json.NewSerializer(json.DefaultMetaFactory, api.Scheme, api.Scheme, true)
Codec = versioning.NewDefaultingCodecForScheme(
api.Scheme,
jsonSerializer,
jsonSerializer,
unversioned.GroupVersion{Version: Version},
runtime.InternalGroupVersioner,
)
}
func newSerializersForScheme(scheme *runtime.Scheme, mf json.MetaFactory) []serializerType {
jsonSerializer := json.NewSerializer(mf, scheme, scheme, false)
jsonPrettySerializer := json.NewSerializer(mf, scheme, scheme, true)
yamlSerializer := json.NewYAMLSerializer(mf, scheme, scheme)
serializers := []serializerType{
{
AcceptContentTypes: []string{"application/json"},
ContentType: "application/json",
FileExtensions: []string{"json"},
EncodesAsText: true,
Serializer: jsonSerializer,
PrettySerializer: jsonPrettySerializer,
AcceptStreamContentTypes: []string{"application/json", "application/json;stream=watch"},
StreamContentType: "application/json",
Framer: json.Framer,
StreamSerializer: jsonSerializer,
},
{
AcceptContentTypes: []string{"application/yaml"},
ContentType: "application/yaml",
FileExtensions: []string{"yaml"},
EncodesAsText: true,
Serializer: yamlSerializer,
// TODO: requires runtime.RawExtension to properly distinguish when the nested content is
// yaml, because the yaml encoder invokes MarshalJSON first
//AcceptStreamContentTypes: []string{"application/yaml", "application/yaml;stream=watch"},
//StreamContentType: "application/yaml;stream=watch",
//Framer: json.YAMLFramer,
//StreamSerializer: yamlSerializer,
},
}
for _, fn := range serializerExtensions {
if serializer, ok := fn(scheme); ok {
serializers = append(serializers, serializer)
}
}
return serializers
}
// newCodecFactory is a helper for testing that allows a different metafactory to be specified.
func newCodecFactory(scheme *runtime.Scheme, mf json.MetaFactory) CodecFactory {
jsonSerializer := json.NewSerializer(mf, scheme, runtime.ObjectTyperToTyper(scheme), false)
jsonPrettySerializer := json.NewSerializer(mf, scheme, runtime.ObjectTyperToTyper(scheme), true)
yamlSerializer := json.NewYAMLSerializer(mf, scheme, runtime.ObjectTyperToTyper(scheme))
serializers := []serializerType{
{
AcceptContentTypes: []string{"application/json"},
ContentType: "application/json",
FileExtensions: []string{"json"},
Serializer: jsonSerializer,
PrettySerializer: jsonPrettySerializer,
},
{
AcceptContentTypes: []string{"application/yaml"},
ContentType: "application/yaml",
FileExtensions: []string{"yaml"},
Serializer: yamlSerializer,
},
}
decoders := make([]runtime.Decoder, 0, len(serializers))
accepts := []string{}
alreadyAccepted := make(map[string]struct{})
for _, d := range serializers {
decoders = append(decoders, d.Serializer)
for _, mediaType := range d.AcceptContentTypes {
if _, ok := alreadyAccepted[mediaType]; ok {
continue
}
alreadyAccepted[mediaType] = struct{}{}
accepts = append(accepts, mediaType)
}
}
return CodecFactory{
scheme: scheme,
serializers: serializers,
universal: recognizer.NewDecoder(decoders...),
accepts: accepts,
legacySerializer: jsonSerializer,
}
}
func TestDecode(t *testing.T) {
testCases := []struct {
creater runtime.ObjectCreater
typer runtime.ObjectTyper
yaml bool
pretty bool
data []byte
defaultGVK *schema.GroupVersionKind
into runtime.Object
errFn func(error) bool
expectedObject runtime.Object
expectedGVK *schema.GroupVersionKind
}{
{
data: []byte("{}"),
expectedGVK: &schema.GroupVersionKind{},
errFn: func(err error) bool { return strings.Contains(err.Error(), "Object 'Kind' is missing in") },
},
{
data: []byte("{}"),
defaultGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
creater: &mockCreater{err: fmt.Errorf("fake error")},
expectedGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
errFn: func(err error) bool { return err.Error() == "fake error" },
},
{
data: []byte("{}"),
defaultGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
creater: &mockCreater{obj: &testDecodable{}},
expectedObject: &testDecodable{},
expectedGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
},
// version without group is not defaulted
{
data: []byte(`{"apiVersion":"blah"}`),
defaultGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
creater: &mockCreater{obj: &testDecodable{}},
expectedObject: &testDecodable{},
expectedGVK: &schema.GroupVersionKind{Kind: "Test", Group: "", Version: "blah"},
},
// group without version is defaulted
{
data: []byte(`{"apiVersion":"other/"}`),
defaultGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
creater: &mockCreater{obj: &testDecodable{}},
expectedObject: &testDecodable{},
expectedGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
},
// accept runtime.Unknown as into and bypass creator
{
data: []byte(`{}`),
into: &runtime.Unknown{},
expectedGVK: &schema.GroupVersionKind{},
expectedObject: &runtime.Unknown{
Raw: []byte(`{}`),
ContentType: runtime.ContentTypeJSON,
},
},
{
data: []byte(`{"test":"object"}`),
into: &runtime.Unknown{},
expectedGVK: &schema.GroupVersionKind{},
expectedObject: &runtime.Unknown{
Raw: []byte(`{"test":"object"}`),
ContentType: runtime.ContentTypeJSON,
},
},
{
data: []byte(`{"test":"object"}`),
into: &runtime.Unknown{},
defaultGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
expectedGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
expectedObject: &runtime.Unknown{
TypeMeta: runtime.TypeMeta{APIVersion: "other/blah", Kind: "Test"},
Raw: []byte(`{"test":"object"}`),
ContentType: runtime.ContentTypeJSON,
},
},
// unregistered objects can be decoded into directly
{
data: []byte(`{"kind":"Test","apiVersion":"other/blah","value":1,"Other":"test"}`),
into: &testDecodable{},
typer: &mockTyper{err: runtime.NewNotRegisteredErr(schema.GroupVersionKind{}, nil)},
expectedGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
expectedObject: &testDecodable{
Other: "test",
Value: 1,
},
},
// registered types get defaulted by the into object kind
{
data: []byte(`{"value":1,"Other":"test"}`),
into: &testDecodable{},
typer: &mockTyper{gvk: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"}},
expectedGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
expectedObject: &testDecodable{
Other: "test",
Value: 1,
},
},
// registered types get defaulted by the into object kind even without version, but return an error
{
data: []byte(`{"value":1,"Other":"test"}`),
into: &testDecodable{},
typer: &mockTyper{gvk: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: ""}},
expectedGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: ""},
errFn: func(err error) bool { return strings.Contains(err.Error(), "Object 'apiVersion' is missing in") },
expectedObject: &testDecodable{
Other: "test",
Value: 1,
},
},
// runtime.VersionedObjects are decoded
{
data: []byte(`{"value":1,"Other":"test"}`),
into: &runtime.VersionedObjects{Objects: []runtime.Object{}},
creater: &mockCreater{obj: &testDecodable{}},
typer: &mockTyper{gvk: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"}},
defaultGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
expectedGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
expectedObject: &runtime.VersionedObjects{
Objects: []runtime.Object{
&testDecodable{
Other: "test",
Value: 1,
},
},
},
},
// runtime.VersionedObjects with an object are decoded into
{
data: []byte(`{"Other":"test"}`),
into: &runtime.VersionedObjects{Objects: []runtime.Object{&testDecodable{Value: 2}}},
typer: &mockTyper{gvk: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"}},
expectedGVK: &schema.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"},
expectedObject: &runtime.VersionedObjects{
Objects: []runtime.Object{
&testDecodable{
Other: "test",
Value: 2,
},
},
},
},
}
for i, test := range testCases {
var s runtime.Serializer
if test.yaml {
s = json.NewYAMLSerializer(json.DefaultMetaFactory, test.creater, test.typer)
} else {
s = json.NewSerializer(json.DefaultMetaFactory, test.creater, test.typer, test.pretty)
}
obj, gvk, err := s.Decode([]byte(test.data), test.defaultGVK, test.into)
if !reflect.DeepEqual(test.expectedGVK, gvk) {
t.Errorf("%d: unexpected GVK: %v", i, gvk)
}
switch {
case err == nil && test.errFn != nil:
t.Errorf("%d: failed: %v", i, err)
continue
case err != nil && test.errFn == nil:
t.Errorf("%d: failed: %v", i, err)
continue
case err != nil:
if !test.errFn(err) {
t.Errorf("%d: failed: %v", i, err)
}
if obj != nil {
t.Errorf("%d: should have returned nil object", i)
}
continue
}
if test.into != nil && test.into != obj {
t.Errorf("%d: expected into to be returned: %v", i, obj)
continue
}
if !reflect.DeepEqual(test.expectedObject, obj) {
t.Errorf("%d: unexpected object:\n%s", i, diff.ObjectGoPrintSideBySide(test.expectedObject, obj))
}
}
}
import (
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/runtime/serializer/json"
"k8s.io/kubernetes/pkg/runtime/serializer/versioning"
"k8s.io/kubernetes/plugin/pkg/scheduler/api"
_ "k8s.io/kubernetes/plugin/pkg/scheduler/api/v1"
)
// Version is the string that represents the current external default version.
const Version = "v1"
// OldestVersion is the string that represents the oldest server version supported.
const OldestVersion = "v1"
// Versions is the list of versions that are recognized in code. The order provided
// may be assumed to be least feature rich to most feature rich, and clients may
// choose to prefer the latter items in the list over the former items when presented
// with a set of versions to choose.
var Versions = []string{"v1"}
// Codec is the default codec for serializing input that should use
// the latest supported version. It supports JSON by default.
var Codec = versioning.NewCodecForScheme(
api.Scheme,
json.NewSerializer(json.DefaultMetaFactory, api.Scheme, runtime.ObjectTyperToTyper(api.Scheme), true),
[]unversioned.GroupVersion{{Version: Version}},
[]unversioned.GroupVersion{{Version: runtime.APIVersionInternal}},
)