12a5eeea17
Convert single GV and lists of GVs into an interface that can handle more complex scenarios (everything internal, nothing supported). Pass the interface down into conversion.
436 lines
16 KiB
Go
436 lines
16 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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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 testapi provides a helper for retrieving the KUBE_TEST_API environment variable.
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package testapi
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import (
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"fmt"
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"mime"
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"os"
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"reflect"
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"strings"
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"k8s.io/kubernetes/federation/apis/federation"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/meta"
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"k8s.io/kubernetes/pkg/api/unversioned"
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"k8s.io/kubernetes/pkg/apimachinery/registered"
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"k8s.io/kubernetes/pkg/apis/apps"
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"k8s.io/kubernetes/pkg/apis/autoscaling"
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"k8s.io/kubernetes/pkg/apis/batch"
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"k8s.io/kubernetes/pkg/apis/certificates"
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"k8s.io/kubernetes/pkg/apis/extensions"
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"k8s.io/kubernetes/pkg/apis/imagepolicy"
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"k8s.io/kubernetes/pkg/apis/policy"
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"k8s.io/kubernetes/pkg/apis/rbac"
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"k8s.io/kubernetes/pkg/runtime"
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"k8s.io/kubernetes/pkg/runtime/serializer/recognizer"
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_ "k8s.io/kubernetes/federation/apis/federation/install"
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_ "k8s.io/kubernetes/pkg/api/install"
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_ "k8s.io/kubernetes/pkg/apis/apps/install"
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_ "k8s.io/kubernetes/pkg/apis/authentication/install"
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_ "k8s.io/kubernetes/pkg/apis/authorization/install"
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_ "k8s.io/kubernetes/pkg/apis/autoscaling/install"
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_ "k8s.io/kubernetes/pkg/apis/batch/install"
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_ "k8s.io/kubernetes/pkg/apis/certificates/install"
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_ "k8s.io/kubernetes/pkg/apis/componentconfig/install"
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_ "k8s.io/kubernetes/pkg/apis/extensions/install"
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_ "k8s.io/kubernetes/pkg/apis/imagepolicy/install"
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_ "k8s.io/kubernetes/pkg/apis/policy/install"
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_ "k8s.io/kubernetes/pkg/apis/rbac/install"
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)
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var (
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Groups = make(map[string]TestGroup)
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Default TestGroup
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Autoscaling TestGroup
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Batch TestGroup
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Extensions TestGroup
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Apps TestGroup
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Policy TestGroup
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Federation TestGroup
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Rbac TestGroup
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Certificates TestGroup
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ImagePolicy TestGroup
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serializer runtime.SerializerInfo
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storageSerializer runtime.SerializerInfo
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)
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type TestGroup struct {
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externalGroupVersion unversioned.GroupVersion
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internalGroupVersion unversioned.GroupVersion
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internalTypes map[string]reflect.Type
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externalTypes map[string]reflect.Type
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}
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func init() {
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if apiMediaType := os.Getenv("KUBE_TEST_API_TYPE"); len(apiMediaType) > 0 {
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var ok bool
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mediaType, options, err := mime.ParseMediaType(apiMediaType)
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if err != nil {
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panic(err)
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}
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serializer, ok = api.Codecs.SerializerForMediaType(mediaType, options)
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if !ok {
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panic(fmt.Sprintf("no serializer for %s", apiMediaType))
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}
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}
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if storageMediaType := StorageMediaType(); len(storageMediaType) > 0 {
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var ok bool
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mediaType, options, err := mime.ParseMediaType(storageMediaType)
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if err != nil {
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panic(err)
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}
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storageSerializer, ok = api.Codecs.SerializerForMediaType(mediaType, options)
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if !ok {
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panic(fmt.Sprintf("no serializer for %s", storageMediaType))
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}
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}
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kubeTestAPI := os.Getenv("KUBE_TEST_API")
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if len(kubeTestAPI) != 0 {
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testGroupVersions := strings.Split(kubeTestAPI, ",")
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for _, gvString := range testGroupVersions {
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groupVersion, err := unversioned.ParseGroupVersion(gvString)
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if err != nil {
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panic(fmt.Sprintf("Error parsing groupversion %v: %v", gvString, err))
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}
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internalGroupVersion := unversioned.GroupVersion{Group: groupVersion.Group, Version: runtime.APIVersionInternal}
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Groups[groupVersion.Group] = TestGroup{
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externalGroupVersion: groupVersion,
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internalGroupVersion: internalGroupVersion,
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internalTypes: api.Scheme.KnownTypes(internalGroupVersion),
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externalTypes: api.Scheme.KnownTypes(groupVersion),
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}
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}
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}
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if _, ok := Groups[api.GroupName]; !ok {
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externalGroupVersion := unversioned.GroupVersion{Group: api.GroupName, Version: registered.GroupOrDie(api.GroupName).GroupVersion.Version}
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Groups[api.GroupName] = TestGroup{
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externalGroupVersion: externalGroupVersion,
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internalGroupVersion: api.SchemeGroupVersion,
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internalTypes: api.Scheme.KnownTypes(api.SchemeGroupVersion),
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externalTypes: api.Scheme.KnownTypes(externalGroupVersion),
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}
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}
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if _, ok := Groups[extensions.GroupName]; !ok {
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externalGroupVersion := unversioned.GroupVersion{Group: extensions.GroupName, Version: registered.GroupOrDie(extensions.GroupName).GroupVersion.Version}
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Groups[extensions.GroupName] = TestGroup{
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externalGroupVersion: externalGroupVersion,
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internalGroupVersion: extensions.SchemeGroupVersion,
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internalTypes: api.Scheme.KnownTypes(extensions.SchemeGroupVersion),
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externalTypes: api.Scheme.KnownTypes(externalGroupVersion),
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}
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}
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if _, ok := Groups[autoscaling.GroupName]; !ok {
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internalTypes := make(map[string]reflect.Type)
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for k, t := range api.Scheme.KnownTypes(extensions.SchemeGroupVersion) {
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if k == "Scale" {
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continue
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}
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internalTypes[k] = t
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}
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externalGroupVersion := unversioned.GroupVersion{Group: autoscaling.GroupName, Version: registered.GroupOrDie(autoscaling.GroupName).GroupVersion.Version}
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Groups[autoscaling.GroupName] = TestGroup{
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externalGroupVersion: externalGroupVersion,
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internalGroupVersion: extensions.SchemeGroupVersion,
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internalTypes: internalTypes,
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externalTypes: api.Scheme.KnownTypes(externalGroupVersion),
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}
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}
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if _, ok := Groups[autoscaling.GroupName+"IntraGroup"]; !ok {
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internalTypes := make(map[string]reflect.Type)
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for k, t := range api.Scheme.KnownTypes(extensions.SchemeGroupVersion) {
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if k == "Scale" {
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internalTypes[k] = t
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break
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}
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}
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externalGroupVersion := unversioned.GroupVersion{Group: autoscaling.GroupName, Version: registered.GroupOrDie(autoscaling.GroupName).GroupVersion.Version}
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Groups[autoscaling.GroupName] = TestGroup{
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externalGroupVersion: externalGroupVersion,
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internalGroupVersion: autoscaling.SchemeGroupVersion,
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internalTypes: internalTypes,
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externalTypes: api.Scheme.KnownTypes(externalGroupVersion),
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}
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}
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if _, ok := Groups[batch.GroupName]; !ok {
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externalGroupVersion := unversioned.GroupVersion{Group: batch.GroupName, Version: registered.GroupOrDie(batch.GroupName).GroupVersion.Version}
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Groups[batch.GroupName] = TestGroup{
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externalGroupVersion: externalGroupVersion,
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internalGroupVersion: batch.SchemeGroupVersion,
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internalTypes: api.Scheme.KnownTypes(batch.SchemeGroupVersion),
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externalTypes: api.Scheme.KnownTypes(externalGroupVersion),
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}
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}
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if _, ok := Groups[apps.GroupName]; !ok {
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externalGroupVersion := unversioned.GroupVersion{Group: apps.GroupName, Version: registered.GroupOrDie(apps.GroupName).GroupVersion.Version}
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Groups[apps.GroupName] = TestGroup{
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externalGroupVersion: externalGroupVersion,
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internalGroupVersion: extensions.SchemeGroupVersion,
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internalTypes: api.Scheme.KnownTypes(extensions.SchemeGroupVersion),
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externalTypes: api.Scheme.KnownTypes(externalGroupVersion),
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}
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}
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if _, ok := Groups[policy.GroupName]; !ok {
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externalGroupVersion := unversioned.GroupVersion{Group: policy.GroupName, Version: registered.GroupOrDie(policy.GroupName).GroupVersion.Version}
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Groups[policy.GroupName] = TestGroup{
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externalGroupVersion: externalGroupVersion,
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internalGroupVersion: policy.SchemeGroupVersion,
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internalTypes: api.Scheme.KnownTypes(policy.SchemeGroupVersion),
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externalTypes: api.Scheme.KnownTypes(externalGroupVersion),
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}
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}
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if _, ok := Groups[federation.GroupName]; !ok {
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externalGroupVersion := unversioned.GroupVersion{Group: federation.GroupName, Version: registered.GroupOrDie(federation.GroupName).GroupVersion.Version}
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Groups[federation.GroupName] = TestGroup{
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externalGroupVersion: externalGroupVersion,
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internalGroupVersion: federation.SchemeGroupVersion,
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internalTypes: api.Scheme.KnownTypes(federation.SchemeGroupVersion),
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externalTypes: api.Scheme.KnownTypes(externalGroupVersion),
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}
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}
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if _, ok := Groups[rbac.GroupName]; !ok {
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externalGroupVersion := unversioned.GroupVersion{Group: rbac.GroupName, Version: registered.GroupOrDie(rbac.GroupName).GroupVersion.Version}
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Groups[rbac.GroupName] = TestGroup{
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externalGroupVersion: externalGroupVersion,
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internalGroupVersion: rbac.SchemeGroupVersion,
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internalTypes: api.Scheme.KnownTypes(rbac.SchemeGroupVersion),
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externalTypes: api.Scheme.KnownTypes(externalGroupVersion),
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}
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}
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if _, ok := Groups[certificates.GroupName]; !ok {
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externalGroupVersion := unversioned.GroupVersion{Group: certificates.GroupName, Version: registered.GroupOrDie(certificates.GroupName).GroupVersion.Version}
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Groups[certificates.GroupName] = TestGroup{
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externalGroupVersion: externalGroupVersion,
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internalGroupVersion: certificates.SchemeGroupVersion,
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internalTypes: api.Scheme.KnownTypes(certificates.SchemeGroupVersion),
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externalTypes: api.Scheme.KnownTypes(externalGroupVersion),
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}
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}
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if _, ok := Groups[imagepolicy.GroupName]; !ok {
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externalGroupVersion := unversioned.GroupVersion{Group: imagepolicy.GroupName, Version: registered.GroupOrDie(imagepolicy.GroupName).GroupVersion.Version}
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Groups[imagepolicy.GroupName] = TestGroup{
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externalGroupVersion: externalGroupVersion,
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internalGroupVersion: imagepolicy.SchemeGroupVersion,
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internalTypes: api.Scheme.KnownTypes(imagepolicy.SchemeGroupVersion),
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externalTypes: api.Scheme.KnownTypes(externalGroupVersion),
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}
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}
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Default = Groups[api.GroupName]
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Autoscaling = Groups[autoscaling.GroupName]
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Batch = Groups[batch.GroupName]
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Apps = Groups[apps.GroupName]
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Policy = Groups[policy.GroupName]
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Certificates = Groups[certificates.GroupName]
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Extensions = Groups[extensions.GroupName]
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Federation = Groups[federation.GroupName]
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Rbac = Groups[rbac.GroupName]
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ImagePolicy = Groups[imagepolicy.GroupName]
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}
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func (g TestGroup) ContentConfig() (string, *unversioned.GroupVersion, runtime.Codec) {
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return "application/json", g.GroupVersion(), g.Codec()
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}
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func (g TestGroup) GroupVersion() *unversioned.GroupVersion {
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copyOfGroupVersion := g.externalGroupVersion
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return ©OfGroupVersion
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}
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// InternalGroupVersion returns the group,version used to identify the internal
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// types for this API
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func (g TestGroup) InternalGroupVersion() unversioned.GroupVersion {
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return g.internalGroupVersion
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}
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// InternalTypes returns a map of internal API types' kind names to their Go types.
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func (g TestGroup) InternalTypes() map[string]reflect.Type {
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return g.internalTypes
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}
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// ExternalTypes returns a map of external API types' kind names to their Go types.
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func (g TestGroup) ExternalTypes() map[string]reflect.Type {
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return g.externalTypes
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}
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// Codec returns the codec for the API version to test against, as set by the
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// KUBE_TEST_API_TYPE env var.
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func (g TestGroup) Codec() runtime.Codec {
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if serializer.Serializer == nil {
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return api.Codecs.LegacyCodec(g.externalGroupVersion)
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}
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return api.Codecs.CodecForVersions(serializer, api.Codecs.UniversalDeserializer(), unversioned.GroupVersions{g.externalGroupVersion}, nil)
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}
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// NegotiatedSerializer returns the negotiated serializer for the server.
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func (g TestGroup) NegotiatedSerializer() runtime.NegotiatedSerializer {
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return api.Codecs
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}
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func StorageMediaType() string {
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return os.Getenv("KUBE_TEST_API_STORAGE_TYPE")
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}
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// StorageCodec returns the codec for the API version to store in etcd, as set by the
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// KUBE_TEST_API_STORAGE_TYPE env var.
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func (g TestGroup) StorageCodec() runtime.Codec {
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s := storageSerializer.Serializer
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if s == nil {
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return api.Codecs.LegacyCodec(g.externalGroupVersion)
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}
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// etcd2 only supports string data - we must wrap any result before returning
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// TODO: remove for etcd3 / make parameterizable
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if !storageSerializer.EncodesAsText {
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s = runtime.NewBase64Serializer(s)
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}
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ds := recognizer.NewDecoder(s, api.Codecs.UniversalDeserializer())
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return api.Codecs.CodecForVersions(s, ds, unversioned.GroupVersions{g.externalGroupVersion}, nil)
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}
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// Converter returns the api.Scheme for the API version to test against, as set by the
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// KUBE_TEST_API env var.
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func (g TestGroup) Converter() runtime.ObjectConvertor {
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interfaces, err := registered.GroupOrDie(g.externalGroupVersion.Group).InterfacesFor(g.externalGroupVersion)
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if err != nil {
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panic(err)
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}
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return interfaces.ObjectConvertor
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}
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// MetadataAccessor returns the MetadataAccessor for the API version to test against,
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// as set by the KUBE_TEST_API env var.
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func (g TestGroup) MetadataAccessor() meta.MetadataAccessor {
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interfaces, err := registered.GroupOrDie(g.externalGroupVersion.Group).InterfacesFor(g.externalGroupVersion)
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if err != nil {
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panic(err)
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}
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return interfaces.MetadataAccessor
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}
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// SelfLink returns a self link that will appear to be for the version Version().
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// 'resource' should be the resource path, e.g. "pods" for the Pod type. 'name' should be
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// empty for lists.
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func (g TestGroup) SelfLink(resource, name string) string {
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if g.externalGroupVersion.Group == api.GroupName {
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if name == "" {
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return fmt.Sprintf("/api/%s/%s", g.externalGroupVersion.Version, resource)
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}
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return fmt.Sprintf("/api/%s/%s/%s", g.externalGroupVersion.Version, resource, name)
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} else {
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// TODO: will need a /apis prefix once we have proper multi-group
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// support
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if name == "" {
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return fmt.Sprintf("/apis/%s/%s/%s", g.externalGroupVersion.Group, g.externalGroupVersion.Version, resource)
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}
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return fmt.Sprintf("/apis/%s/%s/%s/%s", g.externalGroupVersion.Group, g.externalGroupVersion.Version, resource, name)
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}
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}
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// Returns the appropriate path for the given prefix (watch, proxy, redirect, etc), resource, namespace and name.
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// For ex, this is of the form:
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// /api/v1/watch/namespaces/foo/pods/pod0 for v1.
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func (g TestGroup) ResourcePathWithPrefix(prefix, resource, namespace, name string) string {
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var path string
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if g.externalGroupVersion.Group == api.GroupName {
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path = "/api/" + g.externalGroupVersion.Version
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} else {
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// TODO: switch back once we have proper multiple group support
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// path = "/apis/" + g.Group + "/" + Version(group...)
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path = "/apis/" + g.externalGroupVersion.Group + "/" + g.externalGroupVersion.Version
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}
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if prefix != "" {
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path = path + "/" + prefix
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}
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if namespace != "" {
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path = path + "/namespaces/" + namespace
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}
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// Resource names are lower case.
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resource = strings.ToLower(resource)
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if resource != "" {
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path = path + "/" + resource
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}
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if name != "" {
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path = path + "/" + name
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}
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return path
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}
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// Returns the appropriate path for the given resource, namespace and name.
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// For example, this is of the form:
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// /api/v1/namespaces/foo/pods/pod0 for v1.
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func (g TestGroup) ResourcePath(resource, namespace, name string) string {
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return g.ResourcePathWithPrefix("", resource, namespace, name)
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}
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func (g TestGroup) RESTMapper() meta.RESTMapper {
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return registered.RESTMapper()
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}
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// ExternalGroupVersions returns all external group versions allowed for the server.
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func ExternalGroupVersions() unversioned.GroupVersions {
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versions := []unversioned.GroupVersion{}
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for _, g := range Groups {
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gv := g.GroupVersion()
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versions = append(versions, *gv)
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}
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return versions
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}
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// Get codec based on runtime.Object
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func GetCodecForObject(obj runtime.Object) (runtime.Codec, error) {
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kinds, _, err := api.Scheme.ObjectKinds(obj)
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if err != nil {
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return nil, fmt.Errorf("unexpected encoding error: %v", err)
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}
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kind := kinds[0]
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for _, group := range Groups {
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if group.GroupVersion().Group != kind.Group {
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continue
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}
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if api.Scheme.Recognizes(kind) {
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return group.Codec(), nil
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}
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}
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// Codec used for unversioned types
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if api.Scheme.Recognizes(kind) {
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serializer, ok := api.Codecs.SerializerForFileExtension("json")
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if !ok {
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return nil, fmt.Errorf("no serializer registered for json")
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}
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return serializer, nil
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}
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return nil, fmt.Errorf("unexpected kind: %v", kind)
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}
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func NewTestGroup(external, internal unversioned.GroupVersion, internalTypes map[string]reflect.Type, externalTypes map[string]reflect.Type) TestGroup {
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return TestGroup{external, internal, internalTypes, externalTypes}
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}
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