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register service object only

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This commit is contained in:
jianhuiz 2016-05-09 17:08:28 -07:00
parent 101b479299
commit cf0c1fee44
6 changed files with 383 additions and 8 deletions
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160
federation/apis/core/install/install.go Normal file
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@ -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
})
}

75
federation/apis/core/register.go Normal file
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@ -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{},
)
}

58
federation/apis/core/v1/conversion.go Normal file
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@ -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)
}
}
}

28
federation/apis/core/v1/defaults.go Normal file
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@ -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,
)
}

53
federation/apis/core/v1/register.go Normal file
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@ -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)
}

17
federation/cmd/federated-apiserver/app/core.go
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@ -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,
ParameterCodec: api.ParameterCodec,
NegotiatedSerializer: api.Codecs,
Scheme: core.Scheme,
ParameterCodec: core.ParameterCodec,
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)
}
}