register service object only

federation/apis/core/install/install.go

@@ -0,0 +1,160 @@
+/*
+Copyright 2016 The Kubernetes Authors All rights reserved.
+
+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 install
+
+import (
+	"fmt"
+
+	"github.com/golang/glog"
+
+	core "k8s.io/kubernetes/federation/apis/core"
+	core_v1 "k8s.io/kubernetes/federation/apis/core/v1"
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/meta"
+	"k8s.io/kubernetes/pkg/api/unversioned"
+	"k8s.io/kubernetes/pkg/api/v1"
+	"k8s.io/kubernetes/pkg/apimachinery"
+	"k8s.io/kubernetes/pkg/apimachinery/registered"
+	"k8s.io/kubernetes/pkg/conversion"
+	"k8s.io/kubernetes/pkg/runtime"
+	"k8s.io/kubernetes/pkg/util/sets"
+)
+
+const importPrefix = "k8s.io/kubernetes/federation/api"
+
+var accessor = meta.NewAccessor()
+
+// availableVersions lists all known external versions for this group from most preferred to least preferred
+var availableVersions = []unversioned.GroupVersion{core_v1.SchemeGroupVersion}
+
+func init() {
+	registered.RegisterVersions(availableVersions)
+	externalVersions := []unversioned.GroupVersion{}
+	for _, v := range availableVersions {
+		if registered.IsAllowedVersion(v) {
+			externalVersions = append(externalVersions, v)
+		}
+	}
+	if len(externalVersions) == 0 {
+		glog.V(4).Infof("No version is registered for group %v", core.GroupName)
+		return
+	}
+
+	if err := registered.EnableVersions(externalVersions...); err != nil {
+		glog.V(4).Infof("%v", err)
+		return
+	}
+	if err := enableVersions(externalVersions); err != nil {
+		glog.V(4).Infof("%v", err)
+		return
+	}
+}
+
+// TODO: enableVersions should be centralized rather than spread in each API
+// group.
+// We can combine registered.RegisterVersions, registered.EnableVersions and
+// registered.RegisterGroup once we have moved enableVersions there.
+func enableVersions(externalVersions []unversioned.GroupVersion) error {
+	addVersionsToScheme(externalVersions...)
+	preferredExternalVersion := externalVersions[0]
+
+	groupMeta := apimachinery.GroupMeta{
+		GroupVersion:  preferredExternalVersion,
+		GroupVersions: externalVersions,
+		RESTMapper:    newRESTMapper(externalVersions),
+		SelfLinker:    runtime.SelfLinker(accessor),
+		InterfacesFor: interfacesFor,
+	}
+
+	if err := registered.RegisterGroup(groupMeta); err != nil {
+		return err
+	}
+	api.RegisterRESTMapper(groupMeta.RESTMapper)
+	return nil
+}
+
+// userResources is a group of resources mostly used by a kubectl user
+var userResources = []string{"svc"}
+
+func newRESTMapper(externalVersions []unversioned.GroupVersion) meta.RESTMapper {
+	// the list of kinds that are scoped at the root of the api hierarchy
+	// if a kind is not enumerated here, it is assumed to have a namespace scope
+	rootScoped := sets.NewString()
+
+	// these kinds should be excluded from the list of resources
+	ignoredKinds := sets.NewString(
+		"ListOptions",
+		"DeleteOptions",
+		"Status")
+
+	mapper := api.NewDefaultRESTMapper(externalVersions, interfacesFor, importPrefix, ignoredKinds, rootScoped)
+	// setup aliases for groups of resources
+	mapper.AddResourceAlias("all", userResources...)
+
+	return mapper
+}
+
+// InterfacesFor returns the default Codec and ResourceVersioner for a given version
+// string, or an error if the version is not known.
+func interfacesFor(version unversioned.GroupVersion) (*meta.VersionInterfaces, error) {
+	switch version {
+	case core_v1.SchemeGroupVersion:
+		return &meta.VersionInterfaces{
+			ObjectConvertor:  core.Scheme,
+			MetadataAccessor: accessor,
+		}, nil
+	default:
+		g, _ := registered.Group(core.GroupName)
+		return nil, fmt.Errorf("unsupported storage version: %s (valid: %v)", version, g.GroupVersions)
+	}
+}
+
+func addVersionsToScheme(externalVersions ...unversioned.GroupVersion) {
+	// add the internal version to Scheme
+	core.AddToScheme(core.Scheme)
+	// add the enabled external versions to Scheme
+	for _, v := range externalVersions {
+		if !registered.IsEnabledVersion(v) {
+			glog.Errorf("Version %s is not enabled, so it will not be added to the Scheme.", v)
+			continue
+		}
+		switch v {
+		case core_v1.SchemeGroupVersion:
+			core_v1.AddToScheme(core.Scheme)
+		}
+	}
+
+	// This is a "fast-path" that avoids reflection for common types. It focuses on the objects that are
+	// converted the most in the cluster.
+	// TODO: generate one of these for every external API group - this is to prove the impact
+	core.Scheme.AddGenericConversionFunc(func(objA, objB interface{}, s conversion.Scope) (bool, error) {
+		switch a := objA.(type) {
+		case *v1.Service:
+			switch b := objB.(type) {
+			case *api.Service:
+				return true, v1.Convert_v1_Service_To_api_Service(a, b, s)
+			}
+		case *api.Service:
+			switch b := objB.(type) {
+			case *v1.Service:
+				return true, v1.Convert_api_Service_To_v1_Service(a, b, s)
+			}
+
+		}
+		return false, nil
+	})
+}

federation/apis/core/register.go

@@ -0,0 +1,75 @@
+/*
+Copyright 2016 The Kubernetes Authors All rights reserved.
+
+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 core
+
+import (
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/unversioned"
+	"k8s.io/kubernetes/pkg/runtime"
+	"k8s.io/kubernetes/pkg/runtime/serializer"
+)
+
+// Scheme is the default instance of runtime.Scheme to which types in the Kubernetes API are already registered.
+var Scheme = runtime.NewScheme()
+
+// Codecs provides access to encoding and decoding for the scheme
+var Codecs = serializer.NewCodecFactory(Scheme)
+
+// GroupName is the group name use in this package
+const GroupName = ""
+
+// SchemeGroupVersion is group version used to register these objects
+var SchemeGroupVersion = unversioned.GroupVersion{Group: GroupName, Version: runtime.APIVersionInternal}
+
+// Unversiond is group version for unversioned API objects
+// TODO: this should be v1 probably
+var Unversioned = unversioned.GroupVersion{Group: "", Version: "v1"}
+
+// ParameterCodec handles versioning of objects that are converted to query parameters.
+var ParameterCodec = runtime.NewParameterCodec(Scheme)
+
+// Kind takes an unqualified kind and returns back a Group qualified GroupKind
+func Kind(kind string) unversioned.GroupKind {
+	return SchemeGroupVersion.WithKind(kind).GroupKind()
+}
+
+// Resource takes an unqualified resource and returns back a Group qualified GroupResource
+func Resource(resource string) unversioned.GroupResource {
+	return SchemeGroupVersion.WithResource(resource).GroupResource()
+}
+
+func AddToScheme(scheme *runtime.Scheme) {
+	if err := Scheme.AddIgnoredConversionType(&unversioned.TypeMeta{}, &unversioned.TypeMeta{}); err != nil {
+		panic(err)
+	}
+	scheme.AddKnownTypes(SchemeGroupVersion,
+		&api.ServiceList{},
+		&api.Service{},
+		&api.ListOptions{},
+		&api.DeleteOptions{},
+	)
+
+	// Register Unversioned types under their own special group
+	Scheme.AddUnversionedTypes(Unversioned,
+		&unversioned.ExportOptions{},
+		&unversioned.Status{},
+		&unversioned.APIVersions{},
+		&unversioned.APIGroupList{},
+		&unversioned.APIGroup{},
+		&unversioned.APIResourceList{},
+	)
+}

federation/apis/core/v1/conversion.go

@@ -0,0 +1,58 @@
+/*
+Copyright 2016 The Kubernetes Authors All rights reserved.
+
+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 v1
+
+import (
+	"fmt"
+
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/v1"
+	"k8s.io/kubernetes/pkg/runtime"
+)
+
+func addConversionFuncs(scheme *runtime.Scheme) {
+	// Add non-generated conversion functions
+	err := scheme.AddConversionFuncs(
+		v1.Convert_api_ServiceSpec_To_v1_ServiceSpec,
+		v1.Convert_v1_ServiceSpec_To_api_ServiceSpec,
+	)
+	if err != nil {
+		// If one of the conversion functions is malformed, detect it immediately.
+		panic(err)
+	}
+
+	// Add field label conversions for kinds having selectable nothing but ObjectMeta fields.
+	for _, kind := range []string{
+		"Service",
+	} {
+		err = api.Scheme.AddFieldLabelConversionFunc("v1", kind,
+			func(label, value string) (string, string, error) {
+				switch label {
+				case "metadata.namespace",
+					"metadata.name":
+					return label, value, nil
+				default:
+					return "", "", fmt.Errorf("field label %q not supported for %q", label, kind)
+				}
+			})
+		if err != nil {
+			// If one of the conversion functions is malformed, detect it immediately.
+			panic(err)
+		}
+	}
+
+}

federation/apis/core/v1/defaults.go

@@ -0,0 +1,28 @@
+/*
+Copyright 2016 The Kubernetes Authors All rights reserved.
+
+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 v1
+
+import (
+	"k8s.io/kubernetes/pkg/api/v1"
+	"k8s.io/kubernetes/pkg/runtime"
+)
+
+func addDefaultingFuncs(scheme *runtime.Scheme) {
+	scheme.AddDefaultingFuncs(
+		v1.SetDefaults_ServiceSpec,
+	)
+}

federation/apis/core/v1/register.go

@@ -0,0 +1,53 @@
+/*
+Copyright 2014 The Kubernetes Authors All rights reserved.
+
+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 v1
+
+import (
+	"k8s.io/kubernetes/pkg/api/unversioned"
+	"k8s.io/kubernetes/pkg/api/v1"
+	"k8s.io/kubernetes/pkg/runtime"
+	versionedwatch "k8s.io/kubernetes/pkg/watch/versioned"
+)
+
+// GroupName is the group name use in this package
+const GroupName = ""
+
+// SchemeGroupVersion is group version used to register these objects
+var SchemeGroupVersion = unversioned.GroupVersion{Group: GroupName, Version: "v1"}
+
+func AddToScheme(scheme *runtime.Scheme) {
+	// Add the API to Scheme.
+	addKnownTypes(scheme)
+	addConversionFuncs(scheme)
+	addDefaultingFuncs(scheme)
+}
+
+// Adds the list of known types to api.Scheme.
+func addKnownTypes(scheme *runtime.Scheme) {
+	scheme.AddKnownTypes(SchemeGroupVersion,
+		&v1.Service{},
+		&v1.ServiceList{},
+		&v1.ListOptions{},
+		&v1.DeleteOptions{},
+	)
+
+	// Add common types
+	scheme.AddKnownTypes(SchemeGroupVersion, &unversioned.Status{})
+
+	// Add the watch version that applies
+	versionedwatch.AddToGroupVersion(scheme, SchemeGroupVersion)
+}

federation/cmd/federated-apiserver/app/core.go

@@ -21,10 +21,11 @@ import (
 	"k8s.io/kubernetes/pkg/apimachinery/registered"
 	"k8s.io/kubernetes/pkg/genericapiserver"
 
+	"k8s.io/kubernetes/federation/apis/core"
+	_ "k8s.io/kubernetes/federation/apis/core/install"
+	"k8s.io/kubernetes/federation/apis/core/v1"
 	"k8s.io/kubernetes/pkg/api"
-	_ "k8s.io/kubernetes/pkg/api/install"
 	"k8s.io/kubernetes/pkg/api/rest"
-	"k8s.io/kubernetes/pkg/api/v1"
 	serviceetcd "k8s.io/kubernetes/pkg/registry/service/etcd"
 )
 
@@ -34,19 +35,19 @@ func installCoreAPIs(s *genericapiserver.ServerRunOptions, g *genericapiserver.G
 		"services":        serviceStore,
 		"services/status": serviceStatusStorage,
 	}
-	coreGroupMeta := registered.GroupOrDie(api.GroupName)
+	coreGroupMeta := registered.GroupOrDie(core.GroupName)
 	apiGroupInfo := genericapiserver.APIGroupInfo{
 		GroupMeta: *coreGroupMeta,
 		VersionedResourcesStorageMap: map[string]map[string]rest.Storage{
 			v1.SchemeGroupVersion.Version: coreResources,
 		},
-		OptionsExternalVersion: &registered.GroupOrDie(api.GroupName).GroupVersion,
+		OptionsExternalVersion: &registered.GroupOrDie(core.GroupName).GroupVersion,
 		IsLegacyGroup:          true,
-		Scheme:                 api.Scheme,
+		Scheme:                 core.Scheme,
-		ParameterCodec:         api.ParameterCodec,
+		ParameterCodec:         core.ParameterCodec,
-		NegotiatedSerializer:   api.Codecs,
+		NegotiatedSerializer:   core.Codecs,
 	}
 	if err := g.InstallAPIGroup(&apiGroupInfo); err != nil {
-		glog.Fatalf("Error in registering group versions: %v", err)
+		glog.Fatalf("Error in registering group version: %v", err)
 	}
 }