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testapi.go
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testapi.go
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/*
Copyright 2014 The Kubernetes Authors.
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 testapi provides a helper for retrieving the KUBE_TEST_API environment variable.
//
// TODO(lavalamp): this package is a huge disaster at the moment. I intend to
// refactor. All code currently using this package should change:
// 1. Declare your own api.Registry.APIGroupRegistrationManager in your own test code.
// 2. Import the relevant install packages.
// 3. Register the types you need, from the announced.APIGroupAnnouncementManager.
package testapi
import (
"fmt"
"mime"
"os"
"reflect"
"strings"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/runtime/serializer/recognizer"
"k8s.io/kubernetes/pkg/api/legacyscheme"
"k8s.io/kubernetes/pkg/apis/admission"
"k8s.io/kubernetes/pkg/apis/admissionregistration"
"k8s.io/kubernetes/pkg/apis/apps"
"k8s.io/kubernetes/pkg/apis/auditregistration"
"k8s.io/kubernetes/pkg/apis/authorization"
"k8s.io/kubernetes/pkg/apis/autoscaling"
"k8s.io/kubernetes/pkg/apis/batch"
"k8s.io/kubernetes/pkg/apis/certificates"
"k8s.io/kubernetes/pkg/apis/coordination"
api "k8s.io/kubernetes/pkg/apis/core"
"k8s.io/kubernetes/pkg/apis/events"
"k8s.io/kubernetes/pkg/apis/extensions"
"k8s.io/kubernetes/pkg/apis/imagepolicy"
"k8s.io/kubernetes/pkg/apis/networking"
"k8s.io/kubernetes/pkg/apis/node"
"k8s.io/kubernetes/pkg/apis/policy"
"k8s.io/kubernetes/pkg/apis/rbac"
"k8s.io/kubernetes/pkg/apis/scheduling"
"k8s.io/kubernetes/pkg/apis/settings"
"k8s.io/kubernetes/pkg/apis/storage"
// Initialize install packages
_ "k8s.io/kubernetes/pkg/apis/admission/install"
_ "k8s.io/kubernetes/pkg/apis/admissionregistration/install"
_ "k8s.io/kubernetes/pkg/apis/apps/install"
_ "k8s.io/kubernetes/pkg/apis/auditregistration/install"
_ "k8s.io/kubernetes/pkg/apis/authentication/install"
_ "k8s.io/kubernetes/pkg/apis/authorization/install"
_ "k8s.io/kubernetes/pkg/apis/autoscaling/install"
_ "k8s.io/kubernetes/pkg/apis/batch/install"
_ "k8s.io/kubernetes/pkg/apis/certificates/install"
_ "k8s.io/kubernetes/pkg/apis/coordination/install"
_ "k8s.io/kubernetes/pkg/apis/core/install"
_ "k8s.io/kubernetes/pkg/apis/events/install"
_ "k8s.io/kubernetes/pkg/apis/extensions/install"
_ "k8s.io/kubernetes/pkg/apis/imagepolicy/install"
_ "k8s.io/kubernetes/pkg/apis/networking/install"
_ "k8s.io/kubernetes/pkg/apis/node/install"
_ "k8s.io/kubernetes/pkg/apis/policy/install"
_ "k8s.io/kubernetes/pkg/apis/rbac/install"
_ "k8s.io/kubernetes/pkg/apis/scheduling/install"
_ "k8s.io/kubernetes/pkg/apis/settings/install"
_ "k8s.io/kubernetes/pkg/apis/storage/install"
)
// Variables to store GroupName
var (
Groups = make(map[string]TestGroup)
Default TestGroup
Autoscaling TestGroup
Batch TestGroup
Extensions TestGroup
Apps TestGroup
Policy TestGroup
Rbac TestGroup
Storage TestGroup
Admission TestGroup
serializer runtime.SerializerInfo
storageSerializer runtime.SerializerInfo
)
// TestGroup contains GroupVersion to uniquely identify the API
type TestGroup struct {
externalGroupVersion schema.GroupVersion
}
func init() {
if apiMediaType := os.Getenv("KUBE_TEST_API_TYPE"); len(apiMediaType) > 0 {
var ok bool
mediaType, _, err := mime.ParseMediaType(apiMediaType)
if err != nil {
panic(err)
}
serializer, ok = runtime.SerializerInfoForMediaType(legacyscheme.Codecs.SupportedMediaTypes(), mediaType)
if !ok {
panic(fmt.Sprintf("no serializer for %s", apiMediaType))
}
}
if storageMediaType := StorageMediaType(); len(storageMediaType) > 0 {
var ok bool
mediaType, _, err := mime.ParseMediaType(storageMediaType)
if err != nil {
panic(err)
}
storageSerializer, ok = runtime.SerializerInfoForMediaType(legacyscheme.Codecs.SupportedMediaTypes(), mediaType)
if !ok {
panic(fmt.Sprintf("no serializer for %s", storageMediaType))
}
}
kubeTestAPI := os.Getenv("KUBE_TEST_API")
if len(kubeTestAPI) != 0 {
// priority is "first in list preferred", so this has to run in reverse order
testGroupVersions := strings.Split(kubeTestAPI, ",")
for i := len(testGroupVersions) - 1; i >= 0; i-- {
gvString := testGroupVersions[i]
groupVersion, err := schema.ParseGroupVersion(gvString)
if err != nil {
panic(fmt.Sprintf("Error parsing groupversion %v: %v", gvString, err))
}
Groups[groupVersion.Group] = TestGroup{
externalGroupVersion: groupVersion,
}
}
}
if _, ok := Groups[api.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: api.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(api.GroupName)[0].Version}
Groups[api.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[extensions.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: extensions.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(extensions.GroupName)[0].Version}
Groups[extensions.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[autoscaling.GroupName]; !ok {
internalTypes := make(map[string]reflect.Type)
for k, t := range legacyscheme.Scheme.KnownTypes(extensions.SchemeGroupVersion) {
if k == "Scale" {
continue
}
internalTypes[k] = t
}
externalGroupVersion := schema.GroupVersion{Group: autoscaling.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(autoscaling.GroupName)[0].Version}
Groups[autoscaling.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[autoscaling.GroupName+"IntraGroup"]; !ok {
internalTypes := make(map[string]reflect.Type)
for k, t := range legacyscheme.Scheme.KnownTypes(extensions.SchemeGroupVersion) {
if k == "Scale" {
internalTypes[k] = t
break
}
}
externalGroupVersion := schema.GroupVersion{Group: autoscaling.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(autoscaling.GroupName)[0].Version}
Groups[autoscaling.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[batch.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: batch.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(batch.GroupName)[0].Version}
Groups[batch.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[apps.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: apps.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(apps.GroupName)[0].Version}
Groups[apps.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[policy.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: policy.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(policy.GroupName)[0].Version}
Groups[policy.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[rbac.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: rbac.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(rbac.GroupName)[0].Version}
Groups[rbac.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[scheduling.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: scheduling.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(scheduling.GroupName)[0].Version}
Groups[scheduling.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[settings.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: settings.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(settings.GroupName)[0].Version}
Groups[settings.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[storage.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: storage.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(storage.GroupName)[0].Version}
Groups[storage.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[certificates.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: certificates.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(certificates.GroupName)[0].Version}
Groups[certificates.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[imagepolicy.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: imagepolicy.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(imagepolicy.GroupName)[0].Version}
Groups[imagepolicy.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[authorization.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: authorization.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(authorization.GroupName)[0].Version}
Groups[authorization.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[admissionregistration.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: admissionregistration.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(admissionregistration.GroupName)[0].Version}
Groups[admissionregistration.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[admission.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: admission.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(admission.GroupName)[0].Version}
Groups[admission.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[networking.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: networking.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(networking.GroupName)[0].Version}
Groups[networking.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[node.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: node.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(node.GroupName)[0].Version}
Groups[node.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[events.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: events.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(events.GroupName)[0].Version}
Groups[events.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[coordination.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: coordination.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(coordination.GroupName)[0].Version}
Groups[coordination.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
if _, ok := Groups[auditregistration.GroupName]; !ok {
externalGroupVersion := schema.GroupVersion{Group: auditregistration.GroupName, Version: legacyscheme.Scheme.PrioritizedVersionsForGroup(auditregistration.GroupName)[0].Version}
Groups[auditregistration.GroupName] = TestGroup{
externalGroupVersion: externalGroupVersion,
}
}
Default = Groups[api.GroupName]
Autoscaling = Groups[autoscaling.GroupName]
Batch = Groups[batch.GroupName]
Apps = Groups[apps.GroupName]
Policy = Groups[policy.GroupName]
Extensions = Groups[extensions.GroupName]
Rbac = Groups[rbac.GroupName]
Storage = Groups[storage.GroupName]
Admission = Groups[admission.GroupName]
}
// GroupVersion makes copy of schema.GroupVersion
func (g TestGroup) GroupVersion() *schema.GroupVersion {
copyOfGroupVersion := g.externalGroupVersion
return ©OfGroupVersion
}
// Codec returns the codec for the API version to test against, as set by the
// KUBE_TEST_API_TYPE env var.
func (g TestGroup) Codec() runtime.Codec {
if serializer.Serializer == nil {
return legacyscheme.Codecs.LegacyCodec(g.externalGroupVersion)
}
return legacyscheme.Codecs.CodecForVersions(serializer.Serializer, legacyscheme.Codecs.UniversalDeserializer(), schema.GroupVersions{g.externalGroupVersion}, nil)
}
// StorageMediaType finds media type set by KUBE_TEST_API_STORAGE_TYPE env var used to store objects in storage
func StorageMediaType() string {
return os.Getenv("KUBE_TEST_API_STORAGE_TYPE")
}
// StorageCodec returns the codec for the API version to store in etcd, as set by the
// KUBE_TEST_API_STORAGE_TYPE env var.
func (g TestGroup) StorageCodec() runtime.Codec {
s := storageSerializer.Serializer
if s == nil {
return legacyscheme.Codecs.LegacyCodec(g.externalGroupVersion)
}
// etcd2 only supports string data - we must wrap any result before returning
// TODO: remove for etcd3 / make parameterizable
if !storageSerializer.EncodesAsText {
s = runtime.NewBase64Serializer(s, s)
}
ds := recognizer.NewDecoder(s, legacyscheme.Codecs.UniversalDeserializer())
return legacyscheme.Codecs.CodecForVersions(s, ds, schema.GroupVersions{g.externalGroupVersion}, nil)
}
// SelfLink returns a self link that will appear to be for the version Version().
// 'resource' should be the resource path, e.g. "pods" for the Pod type. 'name' should be
// empty for lists.
func (g TestGroup) SelfLink(resource, name string) string {
if g.externalGroupVersion.Group == api.GroupName {
if name == "" {
return fmt.Sprintf("/api/%s/%s", g.externalGroupVersion.Version, resource)
}
return fmt.Sprintf("/api/%s/%s/%s", g.externalGroupVersion.Version, resource, name)
}
// TODO: will need a /apis prefix once we have proper multi-group
// support
if name == "" {
return fmt.Sprintf("/apis/%s/%s/%s", g.externalGroupVersion.Group, g.externalGroupVersion.Version, resource)
}
return fmt.Sprintf("/apis/%s/%s/%s/%s", g.externalGroupVersion.Group, g.externalGroupVersion.Version, resource, name)
}
// ResourcePathWithPrefix returns the appropriate path for the given prefix (watch, proxy, redirect, etc), resource, namespace and name.
// For ex, this is of the form:
// /api/v1/watch/namespaces/foo/pods/pod0 for v1.
func (g TestGroup) ResourcePathWithPrefix(prefix, resource, namespace, name string) string {
var path string
if g.externalGroupVersion.Group == api.GroupName {
path = "/api/" + g.externalGroupVersion.Version
} else {
// TODO: switch back once we have proper multiple group support
// path = "/apis/" + g.Group + "/" + Version(group...)
path = "/apis/" + g.externalGroupVersion.Group + "/" + g.externalGroupVersion.Version
}
if prefix != "" {
path = path + "/" + prefix
}
if namespace != "" {
path = path + "/namespaces/" + namespace
}
// Resource names are lower case.
resource = strings.ToLower(resource)
if resource != "" {
path = path + "/" + resource
}
if name != "" {
path = path + "/" + name
}
return path
}
// ResourcePath returns the appropriate path for the given resource, namespace and name.
// For example, this is of the form:
// /api/v1/namespaces/foo/pods/pod0 for v1.
func (g TestGroup) ResourcePath(resource, namespace, name string) string {
return g.ResourcePathWithPrefix("", resource, namespace, name)
}
// SubResourcePath returns the appropriate path for the given resource, namespace,
// name and subresource.
func (g TestGroup) SubResourcePath(resource, namespace, name, sub string) string {
path := g.ResourcePathWithPrefix("", resource, namespace, name)
if sub != "" {
path = path + "/" + sub
}
return path
}