/*
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 app does all of the work necessary to create a Kubernetes
// APIServer by binding together the API, master and APIServer infrastructure.
// It can be configured and called directly or via the hyperkube cache.
package app

import (
	"fmt"
	"io/ioutil"
	"strings"
	"time"

	"github.com/go-openapi/spec"
	"github.com/golang/glog"
	"github.com/spf13/cobra"
	"github.com/spf13/pflag"

	appsv1beta2 "k8s.io/api/apps/v1beta2"
	apiv1 "k8s.io/api/core/v1"
	extensionsapiv1beta1 "k8s.io/api/extensions/v1beta1"
	"k8s.io/apimachinery/pkg/runtime/schema"
	utilerrors "k8s.io/apimachinery/pkg/util/errors"
	"k8s.io/apimachinery/pkg/util/sets"
	genericapiserver "k8s.io/apiserver/pkg/server"
	"k8s.io/apiserver/pkg/server/filters"
	serveroptions "k8s.io/apiserver/pkg/server/options"
	serverstorage "k8s.io/apiserver/pkg/server/storage"
	clientgoinformers "k8s.io/client-go/informers"
	clientgoclientset "k8s.io/client-go/kubernetes"
	clientset "k8s.io/client-go/kubernetes"
	openapicommon "k8s.io/kube-openapi/pkg/common"
	federationv1beta1 "k8s.io/kubernetes/federation/apis/federation/v1beta1"
	"k8s.io/kubernetes/federation/cmd/federation-apiserver/app/options"
	"k8s.io/kubernetes/pkg/api"
	"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
	informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/internalversion"
	"k8s.io/kubernetes/pkg/generated/openapi"
	"k8s.io/kubernetes/pkg/kubeapiserver"
	kubeapiserveradmission "k8s.io/kubernetes/pkg/kubeapiserver/admission"
	kubeoptions "k8s.io/kubernetes/pkg/kubeapiserver/options"
	kubeserver "k8s.io/kubernetes/pkg/kubeapiserver/server"
	quotainstall "k8s.io/kubernetes/pkg/quota/install"
	"k8s.io/kubernetes/pkg/registry/cachesize"
	"k8s.io/kubernetes/pkg/routes"
	"k8s.io/kubernetes/pkg/version"
)

// NewAPIServerCommand creates a *cobra.Command object with default parameters
func NewAPIServerCommand() *cobra.Command {
	s := options.NewServerRunOptions()
	s.AddFlags(pflag.CommandLine)
	cmd := &cobra.Command{
		Use: "federation-apiserver",
		Long: `The Kubernetes federation API server validates and configures data
for the api objects which include pods, services, replicationcontrollers, and
others. The API Server services REST operations and provides the frontend to the
cluster's shared state through which all other components interact.`,
		Run: func(cmd *cobra.Command, args []string) {
		},
	}
	return cmd
}

// Run runs the specified APIServer.  It only returns if stopCh is closed
// or one of the ports cannot be listened on initially.
func Run(s *options.ServerRunOptions, stopCh <-chan struct{}) error {
	err := NonBlockingRun(s, stopCh)
	if err != nil {
		return err
	}
	<-stopCh
	return nil
}

// NonBlockingRun runs the specified APIServer and configures it to
// stop with the given channel.
func NonBlockingRun(s *options.ServerRunOptions, stopCh <-chan struct{}) error {
	// register all admission plugins
	RegisterAllAdmissionPlugins(s.Admission.Plugins)

	// set defaults
	if err := s.GenericServerRunOptions.DefaultAdvertiseAddress(s.SecureServing); err != nil {
		return err
	}
	if err := kubeoptions.DefaultAdvertiseAddress(s.GenericServerRunOptions, s.InsecureServing); err != nil {
		return err
	}
	if err := s.SecureServing.MaybeDefaultWithSelfSignedCerts(s.GenericServerRunOptions.AdvertiseAddress.String(), nil, nil); err != nil {
		return fmt.Errorf("error creating self-signed certificates: %v", err)
	}
	if err := s.CloudProvider.DefaultExternalHost(s.GenericServerRunOptions); err != nil {
		return fmt.Errorf("error setting the external host value: %v", err)
	}

	s.Authentication.ApplyAuthorization(s.Authorization)

	// validate options
	if errs := s.Validate(); len(errs) != 0 {
		return utilerrors.NewAggregate(errs)
	}

	genericConfig := genericapiserver.NewConfig(api.Codecs)
	if err := s.GenericServerRunOptions.ApplyTo(genericConfig); err != nil {
		return err
	}
	insecureServingOptions, err := s.InsecureServing.ApplyTo(genericConfig)
	if err != nil {
		return err
	}
	if err := s.SecureServing.ApplyTo(genericConfig); err != nil {
		return err
	}
	if err := s.Authentication.ApplyTo(genericConfig); err != nil {
		return err
	}
	if err := s.Audit.ApplyTo(genericConfig); err != nil {
		return err
	}
	if err := s.Features.ApplyTo(genericConfig); err != nil {
		return err
	}

	resourceConfig := defaultResourceConfig()

	if s.Etcd.StorageConfig.DeserializationCacheSize == 0 {
		// When size of cache is not explicitly set, set it to 50000
		s.Etcd.StorageConfig.DeserializationCacheSize = 50000
	}
	storageGroupsToEncodingVersion, err := s.StorageSerialization.StorageGroupsToEncodingVersion()
	if err != nil {
		return fmt.Errorf("error generating storage version map: %s", err)
	}
	storageFactory, err := kubeapiserver.NewStorageFactory(
		s.Etcd.StorageConfig, s.Etcd.DefaultStorageMediaType, api.Codecs,
		serverstorage.NewDefaultResourceEncodingConfig(api.Registry), storageGroupsToEncodingVersion,
		[]schema.GroupVersionResource{}, resourceConfig, s.APIEnablement.RuntimeConfig)
	if err != nil {
		return fmt.Errorf("error in initializing storage factory: %s", err)
	}

	for _, override := range s.Etcd.EtcdServersOverrides {
		tokens := strings.Split(override, "#")
		if len(tokens) != 2 {
			glog.Errorf("invalid value of etcd server overrides: %s", override)
			continue
		}

		apiresource := strings.Split(tokens[0], "/")
		if len(apiresource) != 2 {
			glog.Errorf("invalid resource definition: %s", tokens[0])
			continue
		}
		group := apiresource[0]
		resource := apiresource[1]
		groupResource := schema.GroupResource{Group: group, Resource: resource}

		servers := strings.Split(tokens[1], ";")
		storageFactory.SetEtcdLocation(groupResource, servers)
	}
	if err := s.Etcd.ApplyWithStorageFactoryTo(storageFactory, genericConfig); err != nil {
		return err
	}

	apiAuthenticator, securityDefinitions, err := s.Authentication.ToAuthenticationConfig().New()
	if err != nil {
		return fmt.Errorf("invalid Authentication Config: %v", err)
	}

	client, err := internalclientset.NewForConfig(genericConfig.LoopbackClientConfig)
	if err != nil {
		return fmt.Errorf("failed to create clientset: %v", err)
	}
	externalClient, err := clientset.NewForConfig(genericConfig.LoopbackClientConfig)
	if err != nil {
		return fmt.Errorf("failed to create external clientset: %v", err)
	}
	sharedInformers := informers.NewSharedInformerFactory(client, 10*time.Minute)

	clientgoExternalClient, err := clientgoclientset.NewForConfig(genericConfig.LoopbackClientConfig)
	if err != nil {
		return fmt.Errorf("failed to create real external clientset: %v", err)
	}
	versionedInformers := clientgoinformers.NewSharedInformerFactory(clientgoExternalClient, 10*time.Minute)

	authorizationConfig := s.Authorization.ToAuthorizationConfig(sharedInformers)
	apiAuthorizer, _, err := authorizationConfig.New()
	if err != nil {
		return fmt.Errorf("invalid Authorization Config: %v", err)
	}

	var cloudConfig []byte
	if s.CloudProvider.CloudConfigFile != "" {
		cloudConfig, err = ioutil.ReadFile(s.CloudProvider.CloudConfigFile)
		if err != nil {
			glog.Fatalf("Error reading from cloud configuration file %s: %#v", s.CloudProvider.CloudConfigFile, err)
		}
	}

	// NOTE: we do not provide informers to the quota registry because admission level decisions
	// do not require us to open watches for all items tracked by quota.
	quotaRegistry := quotainstall.NewRegistry(nil, nil)
	pluginInitializer := kubeapiserveradmission.NewPluginInitializer(client, externalClient, sharedInformers, apiAuthorizer, cloudConfig, nil, quotaRegistry)

	err = s.Admission.ApplyTo(
		genericConfig,
		versionedInformers,
		pluginInitializer,
	)
	if err != nil {
		return fmt.Errorf("failed to initialize plugins: %v", err)
	}

	kubeVersion := version.Get()
	genericConfig.Version = &kubeVersion
	genericConfig.Authenticator = apiAuthenticator
	genericConfig.Authorizer = apiAuthorizer
	genericConfig.OpenAPIConfig = genericapiserver.DefaultOpenAPIConfig(openapi.GetOpenAPIDefinitions, api.Scheme)
	genericConfig.OpenAPIConfig.PostProcessSpec = postProcessOpenAPISpecForBackwardCompatibility
	genericConfig.OpenAPIConfig.SecurityDefinitions = securityDefinitions
	genericConfig.SwaggerConfig = genericapiserver.DefaultSwaggerConfig()
	genericConfig.LongRunningFunc = filters.BasicLongRunningRequestCheck(
		sets.NewString("watch", "proxy"),
		sets.NewString("attach", "exec", "proxy", "log", "portforward"),
	)

	// TODO: Move this to generic api server (Need to move the command line flag).
	if s.Etcd.EnableWatchCache {
		glog.V(2).Infof("Initializing cache sizes based on %dMB limit", s.GenericServerRunOptions.TargetRAMMB)
		sizes := cachesize.NewHeuristicWatchCacheSizes(s.GenericServerRunOptions.TargetRAMMB)
		if userSpecified, err := serveroptions.ParseWatchCacheSizes(s.Etcd.WatchCacheSizes); err == nil {
			for resource, size := range userSpecified {
				sizes[resource] = size
			}
		}
		s.Etcd.WatchCacheSizes, err = serveroptions.WriteWatchCacheSizes(sizes)
		if err != nil {
			return err
		}
	}

	m, err := genericConfig.Complete(versionedInformers).New("federation", genericapiserver.EmptyDelegate)
	if err != nil {
		return err
	}

	routes.UIRedirect{}.Install(m.Handler.NonGoRestfulMux)
	routes.Logs{}.Install(m.Handler.GoRestfulContainer)

	apiResourceConfigSource := storageFactory.APIResourceConfigSource
	installFederationAPIs(m, genericConfig.RESTOptionsGetter, apiResourceConfigSource)
	installCoreAPIs(s, m, genericConfig.RESTOptionsGetter, apiResourceConfigSource)
	installExtensionsAPIs(m, genericConfig.RESTOptionsGetter, apiResourceConfigSource)
	installBatchAPIs(m, genericConfig.RESTOptionsGetter, apiResourceConfigSource)
	installAutoscalingAPIs(m, genericConfig.RESTOptionsGetter, apiResourceConfigSource)

	// run the insecure server now
	if insecureServingOptions != nil {
		insecureHandlerChain := kubeserver.BuildInsecureHandlerChain(m.UnprotectedHandler(), genericConfig)
		if err := kubeserver.NonBlockingRun(insecureServingOptions, insecureHandlerChain, stopCh); err != nil {
			return err
		}
	}

	err = m.PrepareRun().NonBlockingRun(stopCh)
	if err == nil {
		sharedInformers.Start(stopCh)
	}
	return err
}

func defaultResourceConfig() *serverstorage.ResourceConfig {
	rc := serverstorage.NewResourceConfig()

	rc.EnableVersions(
		federationv1beta1.SchemeGroupVersion,
	)

	// All core resources except these are disabled by default.
	rc.EnableResources(
		apiv1.SchemeGroupVersion.WithResource("secrets"),
		apiv1.SchemeGroupVersion.WithResource("services"),
		apiv1.SchemeGroupVersion.WithResource("namespaces"),
		apiv1.SchemeGroupVersion.WithResource("events"),
		apiv1.SchemeGroupVersion.WithResource("configmaps"),
	)
	// All extension resources except these are disabled by default.
	rc.EnableResources(
		extensionsapiv1beta1.SchemeGroupVersion.WithResource("daemonsets"),
		extensionsapiv1beta1.SchemeGroupVersion.WithResource("deployments"),
		extensionsapiv1beta1.SchemeGroupVersion.WithResource("ingresses"),
		extensionsapiv1beta1.SchemeGroupVersion.WithResource("replicasets"),
	)
	// All apps resources except these are disabled by default.
	rc.EnableResources(
		appsv1beta2.SchemeGroupVersion.WithResource("daemonsets"),
		appsv1beta2.SchemeGroupVersion.WithResource("deployments"),
		appsv1beta2.SchemeGroupVersion.WithResource("replicasets"),
	)
	return rc
}

// PostProcessSpec adds removed definitions for backward compatibility
func postProcessOpenAPISpecForBackwardCompatibility(s *spec.Swagger) (*spec.Swagger, error) {
	compatibilityMap := map[string]string{
		"v1beta1.ReplicaSetList":           "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.ReplicaSetList",
		"v1.FlockerVolumeSource":           "io.k8s.kubernetes.pkg.api.v1.FlockerVolumeSource",
		"v1.FlexVolumeSource":              "io.k8s.kubernetes.pkg.api.v1.FlexVolumeSource",
		"v1.SecretKeySelector":             "io.k8s.kubernetes.pkg.api.v1.SecretKeySelector",
		"v1.DeleteOptions":                 "io.k8s.apimachinery.pkg.apis.meta.v1.DeleteOptions",
		"v1.ServiceSpec":                   "io.k8s.kubernetes.pkg.api.v1.ServiceSpec",
		"v1.NamespaceStatus":               "io.k8s.kubernetes.pkg.api.v1.NamespaceStatus",
		"v1.Affinity":                      "io.k8s.kubernetes.pkg.api.v1.Affinity",
		"v1.PodAffinity":                   "io.k8s.kubernetes.pkg.api.v1.PodAffinity",
		"v1.EnvVarSource":                  "io.k8s.kubernetes.pkg.api.v1.EnvVarSource",
		"v1.ListMeta":                      "io.k8s.apimachinery.pkg.apis.meta.v1.ListMeta",
		"v1.ObjectMeta":                    "io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta",
		"v1.APIGroupList":                  "io.k8s.apimachinery.pkg.apis.meta.v1.APIGroupList",
		"v1.EnvFromSource":                 "io.k8s.kubernetes.pkg.api.v1.EnvFromSource",
		"v1.Service":                       "io.k8s.kubernetes.pkg.api.v1.Service",
		"v1.HorizontalPodAutoscaler":       "io.k8s.kubernetes.pkg.apis.autoscaling.v1.HorizontalPodAutoscaler",
		"v1.StatusCause":                   "io.k8s.apimachinery.pkg.apis.meta.v1.StatusCause",
		"v1.ObjectFieldSelector":           "io.k8s.kubernetes.pkg.api.v1.ObjectFieldSelector",
		"v1.QuobyteVolumeSource":           "io.k8s.kubernetes.pkg.api.v1.QuobyteVolumeSource",
		"v1beta1.ReplicaSetSpec":           "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.ReplicaSetSpec",
		"v1.LabelSelector":                 "io.k8s.apimachinery.pkg.apis.meta.v1.LabelSelector",
		"v1.DownwardAPIVolumeFile":         "io.k8s.kubernetes.pkg.api.v1.DownwardAPIVolumeFile",
		"v1.GCEPersistentDiskVolumeSource": "io.k8s.kubernetes.pkg.api.v1.GCEPersistentDiskVolumeSource",
		"v1beta1.ClusterCondition":         "io.k8s.kubernetes.federation.apis.federation.v1beta1.ClusterCondition",
		"v1.JobCondition":                  "io.k8s.kubernetes.pkg.apis.batch.v1.JobCondition",
		"v1.LabelSelectorRequirement":      "io.k8s.apimachinery.pkg.apis.meta.v1.LabelSelectorRequirement",
		"v1beta1.Deployment":               "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.Deployment",
		"v1.LoadBalancerIngress":           "io.k8s.kubernetes.pkg.api.v1.LoadBalancerIngress",
		"v1.SecretList":                    "io.k8s.kubernetes.pkg.api.v1.SecretList",
		"v1.ServicePort":                   "io.k8s.kubernetes.pkg.api.v1.ServicePort",
		"v1.Namespace":                     "io.k8s.kubernetes.pkg.api.v1.Namespace",
		"v1beta1.ReplicaSetCondition":      "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.ReplicaSetCondition",
		"v1.CrossVersionObjectReference":   "io.k8s.kubernetes.pkg.apis.autoscaling.v1.CrossVersionObjectReference",
		"v1.ConfigMapVolumeSource":         "io.k8s.kubernetes.pkg.api.v1.ConfigMapVolumeSource",
		"v1.FCVolumeSource":                "io.k8s.kubernetes.pkg.api.v1.FCVolumeSource",
		"v1.GroupVersionForDiscovery":      "io.k8s.apimachinery.pkg.apis.meta.v1.GroupVersionForDiscovery",
		"v1beta1.ClusterStatus":            "io.k8s.kubernetes.federation.apis.federation.v1beta1.ClusterStatus",
		"v1.Job":                           "io.k8s.kubernetes.pkg.apis.batch.v1.Job",
		"v1.PersistentVolumeClaimVolumeSource": "io.k8s.kubernetes.pkg.api.v1.PersistentVolumeClaimVolumeSource",
		"v1.Handler":                           "io.k8s.kubernetes.pkg.api.v1.Handler",
		"v1.ServerAddressByClientCIDR":         "io.k8s.apimachinery.pkg.apis.meta.v1.ServerAddressByClientCIDR",
		"v1.PodAntiAffinity":                   "io.k8s.kubernetes.pkg.api.v1.PodAntiAffinity",
		"v1.ISCSIVolumeSource":                 "io.k8s.kubernetes.pkg.api.v1.ISCSIVolumeSource",
		"v1.WeightedPodAffinityTerm":           "io.k8s.kubernetes.pkg.api.v1.WeightedPodAffinityTerm",
		"v1.HorizontalPodAutoscalerSpec":       "io.k8s.kubernetes.pkg.apis.autoscaling.v1.HorizontalPodAutoscalerSpec",
		"v1.HorizontalPodAutoscalerList":       "io.k8s.kubernetes.pkg.apis.autoscaling.v1.HorizontalPodAutoscalerList",
		"v1.Probe":                             "io.k8s.kubernetes.pkg.api.v1.Probe",
		"v1.APIGroup":                          "io.k8s.apimachinery.pkg.apis.meta.v1.APIGroup",
		"v1beta1.DeploymentList":               "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.DeploymentList",
		"v1.NodeAffinity":                      "io.k8s.kubernetes.pkg.api.v1.NodeAffinity",
		"v1.SecretEnvSource":                   "io.k8s.kubernetes.pkg.api.v1.SecretEnvSource",
		"v1beta1.DeploymentStatus":             "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.DeploymentStatus",
		"v1.CinderVolumeSource":                "io.k8s.kubernetes.pkg.api.v1.CinderVolumeSource",
		"v1.NodeSelectorTerm":                  "io.k8s.kubernetes.pkg.api.v1.NodeSelectorTerm",
		"v1.Patch":                             "io.k8s.apimachinery.pkg.apis.meta.v1.Patch",
		"v1.SecretVolumeSource":                "io.k8s.kubernetes.pkg.api.v1.SecretVolumeSource",
		"v1.Secret":                            "io.k8s.kubernetes.pkg.api.v1.Secret",
		"v1.NodeSelector":                      "io.k8s.kubernetes.pkg.api.v1.NodeSelector",
		"runtime.RawExtension":                 "io.k8s.apimachinery.pkg.runtime.RawExtension",
		"v1.PreferredSchedulingTerm":           "io.k8s.kubernetes.pkg.api.v1.PreferredSchedulingTerm",
		"v1beta1.ClusterList":                  "io.k8s.kubernetes.federation.apis.federation.v1beta1.ClusterList",
		"v1.KeyToPath":                         "io.k8s.kubernetes.pkg.api.v1.KeyToPath",
		"intstr.IntOrString":                   "io.k8s.apimachinery.pkg.util.intstr.IntOrString",
		"v1beta1.ClusterSpec":                  "io.k8s.kubernetes.federation.apis.federation.v1beta1.ClusterSpec",
		"v1.ServiceList":                       "io.k8s.kubernetes.pkg.api.v1.ServiceList",
		"v1beta1.DeploymentStrategy":           "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.DeploymentStrategy",
		"v1beta1.IngressBackend":               "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.IngressBackend",
		"v1.Time":                              "io.k8s.apimachinery.pkg.apis.meta.v1.Time",
		"v1.ContainerPort":                     "io.k8s.kubernetes.pkg.api.v1.ContainerPort",
		"v1beta1.HTTPIngressRuleValue":         "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.HTTPIngressRuleValue",
		"v1.AzureFileVolumeSource":             "io.k8s.kubernetes.pkg.api.v1.AzureFileVolumeSource",
		"v1.PodTemplateSpec":                   "io.k8s.kubernetes.pkg.api.v1.PodTemplateSpec",
		"v1.PodSpec":                           "io.k8s.kubernetes.pkg.api.v1.PodSpec",
		"v1beta1.ReplicaSetStatus":             "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.ReplicaSetStatus",
		"v1.CephFSVolumeSource":                "io.k8s.kubernetes.pkg.api.v1.CephFSVolumeSource",
		"v1.Volume":                            "io.k8s.kubernetes.pkg.api.v1.Volume",
		"v1beta1.Ingress":                      "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.Ingress",
		"v1.PodAffinityTerm":                   "io.k8s.kubernetes.pkg.api.v1.PodAffinityTerm",
		"v1.ObjectReference":                   "io.k8s.kubernetes.pkg.api.v1.ObjectReference",
		"v1.ServiceStatus":                     "io.k8s.kubernetes.pkg.api.v1.ServiceStatus",
		"v1.APIResource":                       "io.k8s.apimachinery.pkg.apis.meta.v1.APIResource",
		"v1.AzureDiskVolumeSource":             "io.k8s.kubernetes.pkg.api.v1.AzureDiskVolumeSource",
		"v1.ConfigMap":                         "io.k8s.kubernetes.pkg.api.v1.ConfigMap",
		"v1beta1.IngressSpec":                  "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.IngressSpec",
		"v1.APIVersions":                       "io.k8s.apimachinery.pkg.apis.meta.v1.APIVersions",
		"resource.Quantity":                    "io.k8s.apimachinery.pkg.api.resource.Quantity",
		"v1.Event":                             "io.k8s.kubernetes.pkg.api.v1.Event",
		"v1.JobStatus":                         "io.k8s.kubernetes.pkg.apis.batch.v1.JobStatus",
		"v1beta1.ServerAddressByClientCIDR":    "io.k8s.kubernetes.federation.apis.federation.v1beta1.ServerAddressByClientCIDR",
		"v1.LocalObjectReference":              "io.k8s.kubernetes.pkg.api.v1.LocalObjectReference",
		"v1.HostPathVolumeSource":              "io.k8s.kubernetes.pkg.api.v1.HostPathVolumeSource",
		"v1.LoadBalancerStatus":                "io.k8s.kubernetes.pkg.api.v1.LoadBalancerStatus",
		"v1beta1.HTTPIngressPath":              "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.HTTPIngressPath",
		"v1beta1.DeploymentSpec":               "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.DeploymentSpec",
		"v1.ExecAction":                        "io.k8s.kubernetes.pkg.api.v1.ExecAction",
		"v1.HorizontalPodAutoscalerStatus":     "io.k8s.kubernetes.pkg.apis.autoscaling.v1.HorizontalPodAutoscalerStatus",
		"v1.JobSpec":                           "io.k8s.kubernetes.pkg.apis.batch.v1.JobSpec",
		"v1beta1.DaemonSetSpec":                "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.DaemonSetSpec",
		"v1.SELinuxOptions":                    "io.k8s.kubernetes.pkg.api.v1.SELinuxOptions",
		"v1beta1.IngressTLS":                   "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.IngressTLS",
		"v1beta1.ScaleStatus":                  "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.ScaleStatus",
		"v1.NamespaceSpec":                     "io.k8s.kubernetes.pkg.api.v1.NamespaceSpec",
		"v1.StatusDetails":                     "io.k8s.apimachinery.pkg.apis.meta.v1.StatusDetails",
		"v1beta1.IngressList":                  "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.IngressList",
		"v1beta1.DeploymentRollback":           "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.DeploymentRollback",
		"v1.GlusterfsVolumeSource":             "io.k8s.kubernetes.pkg.api.v1.GlusterfsVolumeSource",
		"v1.JobList":                           "io.k8s.kubernetes.pkg.apis.batch.v1.JobList",
		"v1.EventList":                         "io.k8s.kubernetes.pkg.api.v1.EventList",
		"v1beta1.IngressRule":                  "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.IngressRule",
		"v1.APIResourceList":                   "io.k8s.apimachinery.pkg.apis.meta.v1.APIResourceList",
		"v1.ConfigMapKeySelector":              "io.k8s.kubernetes.pkg.api.v1.ConfigMapKeySelector",
		"v1.PhotonPersistentDiskVolumeSource":  "io.k8s.kubernetes.pkg.api.v1.PhotonPersistentDiskVolumeSource",
		"v1.HTTPHeader":                        "io.k8s.kubernetes.pkg.api.v1.HTTPHeader",
		"version.Info":                         "io.k8s.apimachinery.pkg.version.Info",
		"v1.EventSource":                       "io.k8s.kubernetes.pkg.api.v1.EventSource",
		"v1.OwnerReference":                    "io.k8s.apimachinery.pkg.apis.meta.v1.OwnerReference",
		"v1beta1.ScaleSpec":                    "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.ScaleSpec",
		"v1.GitRepoVolumeSource":               "io.k8s.kubernetes.pkg.api.v1.GitRepoVolumeSource",
		"v1.ConfigMapEnvSource":                "io.k8s.kubernetes.pkg.api.v1.ConfigMapEnvSource",
		"v1beta1.DeploymentCondition":          "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.DeploymentCondition",
		"v1.EnvVar":                            "io.k8s.kubernetes.pkg.api.v1.EnvVar",
		"v1.DownwardAPIVolumeSource":           "io.k8s.kubernetes.pkg.api.v1.DownwardAPIVolumeSource",
		"v1.SecurityContext":                   "io.k8s.kubernetes.pkg.api.v1.SecurityContext",
		"v1beta1.IngressStatus":                "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.IngressStatus",
		"v1beta1.Cluster":                      "io.k8s.kubernetes.federation.apis.federation.v1beta1.Cluster",
		"v1.Capabilities":                      "io.k8s.kubernetes.pkg.api.v1.Capabilities",
		"v1.AWSElasticBlockStoreVolumeSource":  "io.k8s.kubernetes.pkg.api.v1.AWSElasticBlockStoreVolumeSource",
		"v1beta1.ReplicaSet":                   "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.ReplicaSet",
		"v1.ConfigMapList":                     "io.k8s.kubernetes.pkg.api.v1.ConfigMapList",
		"v1.Lifecycle":                         "io.k8s.kubernetes.pkg.api.v1.Lifecycle",
		"v1beta1.Scale":                        "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.Scale",
		"v1beta1.DaemonSet":                    "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.DaemonSet",
		"v1beta1.RollingUpdateDeployment":      "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.RollingUpdateDeployment",
		"v1beta1.DaemonSetStatus":              "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.DaemonSetStatus",
		"v1.Preconditions":                     "io.k8s.apimachinery.pkg.apis.meta.v1.Preconditions",
		"v1beta1.DaemonSetList":                "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.DaemonSetList",
		"v1.RBDVolumeSource":                   "io.k8s.kubernetes.pkg.api.v1.RBDVolumeSource",
		"v1.NFSVolumeSource":                   "io.k8s.kubernetes.pkg.api.v1.NFSVolumeSource",
		"v1.NodeSelectorRequirement":           "io.k8s.kubernetes.pkg.api.v1.NodeSelectorRequirement",
		"v1.ResourceRequirements":              "io.k8s.kubernetes.pkg.api.v1.ResourceRequirements",
		"v1.WatchEvent":                        "io.k8s.apimachinery.pkg.apis.meta.v1.WatchEvent",
		"v1.HTTPGetAction":                     "io.k8s.kubernetes.pkg.api.v1.HTTPGetAction",
		"v1beta1.RollbackConfig":               "io.k8s.kubernetes.pkg.apis.extensions.v1beta1.RollbackConfig",
		"v1.PodSecurityContext":                "io.k8s.kubernetes.pkg.api.v1.PodSecurityContext",
		"v1.VolumeMount":                       "io.k8s.kubernetes.pkg.api.v1.VolumeMount",
		"v1.NamespaceList":                     "io.k8s.kubernetes.pkg.api.v1.NamespaceList",
		"v1.TCPSocketAction":                   "io.k8s.kubernetes.pkg.api.v1.TCPSocketAction",
		"v1.ResourceFieldSelector":             "io.k8s.kubernetes.pkg.api.v1.ResourceFieldSelector",
		"v1.Container":                         "io.k8s.kubernetes.pkg.api.v1.Container",
		"v1.VsphereVirtualDiskVolumeSource":    "io.k8s.kubernetes.pkg.api.v1.VsphereVirtualDiskVolumeSource",
		"v1.EmptyDirVolumeSource":              "io.k8s.kubernetes.pkg.api.v1.EmptyDirVolumeSource",
		"v1.Status":                            "io.k8s.apimachinery.pkg.apis.meta.v1.Status",
	}

	for k, v := range compatibilityMap {
		if _, found := s.Definitions[v]; !found {
			continue
		}
		s.Definitions[k] = spec.Schema{
			SchemaProps: spec.SchemaProps{
				Ref:         spec.MustCreateRef("#/definitions/" + openapicommon.EscapeJsonPointer(v)),
				Description: fmt.Sprintf("Deprecated. Please use %s instead.", v),
			},
		}
	}
	return s, nil
}