131 lines
4.0 KiB
Go
131 lines
4.0 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// Package install installs the v1 monolithic api, making it available as an
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// option to all of the API encoding/decoding machinery.
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package install
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import (
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"fmt"
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"github.com/golang/glog"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/latest"
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"k8s.io/kubernetes/pkg/util/sets"
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"k8s.io/kubernetes/pkg/api/meta"
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"k8s.io/kubernetes/pkg/api/registered"
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"k8s.io/kubernetes/pkg/api/unversioned"
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"k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/pkg/runtime"
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)
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const importPrefix = "k8s.io/kubernetes/pkg/api"
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var accessor = meta.NewAccessor()
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// availableVersions lists all known external versions for this group from most preferred to least preferred
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var availableVersions = []unversioned.GroupVersion{v1.SchemeGroupVersion}
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func init() {
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externalVersions := []unversioned.GroupVersion{}
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for _, allowedVersion := range registered.GroupVersionsForGroup(api.GroupName) {
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for _, externalVersion := range availableVersions {
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if externalVersion == allowedVersion {
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externalVersions = append(externalVersions, externalVersion)
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}
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}
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}
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if len(externalVersions) == 0 {
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glog.V(4).Infof("No version is registered for group %v", api.GroupName)
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return
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}
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preferredExternalVersion := externalVersions[0]
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groupMeta := latest.GroupMeta{
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GroupVersion: preferredExternalVersion,
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GroupVersions: externalVersions,
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Codec: runtime.CodecFor(api.Scheme, preferredExternalVersion),
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RESTMapper: newRESTMapper(externalVersions),
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SelfLinker: runtime.SelfLinker(accessor),
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InterfacesFor: interfacesFor,
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}
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if err := latest.RegisterGroup(groupMeta); err != nil {
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glog.V(4).Infof("%v", err)
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return
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}
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api.RegisterRESTMapper(groupMeta.RESTMapper)
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}
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// userResources is a group of resources mostly used by a kubectl user
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var userResources = []string{"rc", "svc", "pods", "pvc"}
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func newRESTMapper(externalVersions []unversioned.GroupVersion) meta.RESTMapper {
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worstToBestGroupVersions := []unversioned.GroupVersion{}
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for i := len(externalVersions) - 1; i >= 0; i-- {
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worstToBestGroupVersions = append(worstToBestGroupVersions, externalVersions[i])
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}
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// the list of kinds that are scoped at the root of the api hierarchy
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// if a kind is not enumerated here, it is assumed to have a namespace scope
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rootScoped := sets.NewString(
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"Node",
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"Namespace",
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"PersistentVolume",
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"ComponentStatus",
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)
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// these kinds should be excluded from the list of resources
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ignoredKinds := sets.NewString(
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"ListOptions",
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"DeleteOptions",
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"Status",
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"PodLogOptions",
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"PodExecOptions",
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"PodAttachOptions",
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"PodProxyOptions",
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"ThirdPartyResource",
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"ThirdPartyResourceData",
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"ThirdPartyResourceList")
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mapper := api.NewDefaultRESTMapper(worstToBestGroupVersions, interfacesFor, importPrefix, ignoredKinds, rootScoped)
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// setup aliases for groups of resources
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mapper.AddResourceAlias("all", userResources...)
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return mapper
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}
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// InterfacesFor returns the default Codec and ResourceVersioner for a given version
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// string, or an error if the version is not known.
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func interfacesFor(version unversioned.GroupVersion) (*meta.VersionInterfaces, error) {
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switch version {
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case v1.SchemeGroupVersion:
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return &meta.VersionInterfaces{
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Codec: v1.Codec,
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ObjectConvertor: api.Scheme,
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MetadataAccessor: accessor,
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}, nil
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default:
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g, _ := latest.Group(api.GroupName)
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return nil, fmt.Errorf("unsupported storage version: %s (valid: %v)", version, g.GroupVersions)
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}
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}
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