Patch

.gitignore

@@ -110,7 +110,6 @@ kubernetes.tar.gz
 # generated files in any directory
 # TODO(thockin): uncomment this when we stop committing the generated files.
 #zz_generated.*
-zz_generated.openapi.go
 
 # make-related metadata
 /.make/

README.md

 # Kubernetes
 
-[![Submit Queue Widget]][Submit Queue] [![GoDoc Widget]][GoDoc] [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/569/badge)](https://bestpractices.coreinfrastructure.org/projects/569)
-
 <img src="https://github.com/kubernetes/kubernetes/raw/master/logo/logo.png" width="100">
 
 ----
 
-Kubernetes is an open source system for managing [containerized applications]
-across multiple hosts; providing basic mechanisms for deployment, maintenance,
-and scaling of applications.
-
-Kubernetes builds upon a decade and a half of experience at Google running
-production workloads at scale using a system called [Borg],
-combined with best-of-breed ideas and practices from the community.
-
-Kubernetes is hosted by the Cloud Native Computing Foundation ([CNCF]).
-If you are a company that wants to help shape the evolution of
-technologies that are container-packaged, dynamically-scheduled
-and microservices-oriented, consider joining the CNCF.
-For details about who's involved and how Kubernetes plays a role,
-read the CNCF [announcement].
-
-----
-
-## To start using Kubernetes
-
-See our documentation on [kubernetes.io].
-
-Try our [interactive tutorial].
-
-Take a free course on [Scalable Microservices with Kubernetes].
-
-## To start developing Kubernetes
-
-The [community repository] hosts all information about
-building Kubernetes from source, how to contribute code
-and documentation, who to contact about what, etc.
-
-If you want to build Kubernetes right away there are two options:
-
-##### You have a working [Go environment].
-
-```
-$ go get -d k8s.io/kubernetes
-$ cd $GOPATH/src/k8s.io/kubernetes
-$ make
-```
-
-##### You have a working [Docker environment].
-
-```
-$ git clone https://github.com/kubernetes/kubernetes
-$ cd kubernetes
-$ make quick-release
-```
-
-For the full story, head over to the [developer's documentation].
-
-## Support
-
-If you need support, start with the [troubleshooting guide],
-and work your way through the process that we've outlined.
-
-That said, if you have questions, reach out to us
-[one way or another][communication].
-
-[announcement]: https://cncf.io/news/announcement/2015/07/new-cloud-native-computing-foundation-drive-alignment-among-container
-[Borg]: https://research.google.com/pubs/pub43438.html
-[CNCF]: https://www.cncf.io/about
-[communication]: https://git.k8s.io/community/communication
-[community repository]: https://git.k8s.io/community
-[containerized applications]: https://kubernetes.io/docs/concepts/overview/what-is-kubernetes/
-[developer's documentation]: https://git.k8s.io/community/contributors/devel#readme
-[Docker environment]: https://docs.docker.com/engine
-[Go environment]: https://golang.org/doc/install
-[GoDoc]: https://godoc.org/k8s.io/kubernetes
-[GoDoc Widget]: https://godoc.org/k8s.io/kubernetes?status.svg
-[interactive tutorial]: http://kubernetes.io/docs/tutorials/kubernetes-basics
-[kubernetes.io]: http://kubernetes.io
-[Scalable Microservices with Kubernetes]: https://www.udacity.com/course/scalable-microservices-with-kubernetes--ud615
-[Submit Queue]: http://submit-queue.k8s.io/#/ci
-[Submit Queue Widget]: http://submit-queue.k8s.io/health.svg?v=1
-[troubleshooting guide]: https://kubernetes.io/docs/tasks/debug-application-cluster/troubleshooting/
-
-[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/README.md?pixel)]()
+Kubernetes without the features I don't care about.

cmd/controller-manager/app/options/options.go

@@ -48,8 +48,6 @@ type GenericControllerManagerOptions struct {
 	SecureServing *apiserveroptions.SecureServingOptions
 	// TODO: remove insecure serving mode
 	InsecureServing *InsecureServingOptions
-	Authentication  *apiserveroptions.DelegatingAuthenticationOptions
-	Authorization   *apiserveroptions.DelegatingAuthorizationOptions
 
 	Master     string
 	Kubeconfig string
@@ -77,8 +75,6 @@ func NewGenericControllerManagerOptions(componentConfig componentconfig.KubeCont
 			BindPort:    int(componentConfig.Port),
 			BindNetwork: "tcp",
 		},
-		Authentication: nil, // TODO: enable with apiserveroptions.NewDelegatingAuthenticationOptions()
-		Authorization:  nil, // TODO: enable with apiserveroptions.NewDelegatingAuthorizationOptions()
 	}
 
 	// disable secure serving for now
@@ -179,8 +175,6 @@ func (o *GenericControllerManagerOptions) AddFlags(fs *pflag.FlagSet) {
 	o.SecureServing.AddFlags(fs)
 	o.InsecureServing.AddFlags(fs)
 	o.InsecureServing.AddDeprecatedFlags(fs)
-	o.Authentication.AddFlags(fs)
-	o.Authorization.AddFlags(fs)
 }
 
 // ApplyTo fills up controller manager config with options and userAgent
@@ -193,12 +187,6 @@ func (o *GenericControllerManagerOptions) ApplyTo(c *genericcontrollermanager.Co
 	if err := o.InsecureServing.ApplyTo(&c.InsecureServing, &c.ComponentConfig); err != nil {
 		return err
 	}
-	if err := o.Authentication.ApplyTo(&c.Authentication, c.SecureServing, nil); err != nil {
-		return err
-	}
-	if err := o.Authorization.ApplyTo(&c.Authorization); err != nil {
-		return err
-	}
 
 	var err error
 	c.Kubeconfig, err = clientcmd.BuildConfigFromFlags(o.Master, o.Kubeconfig)
@@ -226,8 +214,6 @@ func (o *GenericControllerManagerOptions) Validate() []error {
 	errors := []error{}
 	errors = append(errors, o.SecureServing.Validate()...)
 	errors = append(errors, o.InsecureServing.Validate()...)
-	errors = append(errors, o.Authentication.Validate()...)
-	errors = append(errors, o.Authorization.Validate()...)
 
 	// TODO: validate component config, master and kubeconfig
 

cmd/kube-apiserver/app/options/options.go

@@ -44,7 +44,6 @@ type ServerRunOptions struct {
 	Etcd                    *genericoptions.EtcdOptions
 	SecureServing           *genericoptions.SecureServingOptionsWithLoopback
 	InsecureServing         *kubeoptions.InsecureServingOptions
-	Audit                   *genericoptions.AuditOptions
 	Features                *genericoptions.FeatureOptions
 	Admission               *kubeoptions.AdmissionOptions
 	Authentication          *kubeoptions.BuiltInAuthenticationOptions
@@ -82,7 +81,6 @@ func NewServerRunOptions() *ServerRunOptions {
 		Etcd:                 genericoptions.NewEtcdOptions(storagebackend.NewDefaultConfig(kubeoptions.DefaultEtcdPathPrefix, nil)),
 		SecureServing:        kubeoptions.NewSecureServingOptions(),
 		InsecureServing:      kubeoptions.NewInsecureServingOptions(),
-		Audit:                genericoptions.NewAuditOptions(),
 		Features:             genericoptions.NewFeatureOptions(),
 		Admission:            kubeoptions.NewAdmissionOptions(),
 		Authentication:       kubeoptions.NewBuiltInAuthenticationOptions().WithAll(),
@@ -118,7 +116,7 @@ func NewServerRunOptions() *ServerRunOptions {
 	s.ServiceClusterIPRange = kubeoptions.DefaultServiceIPCIDR
 
 	// Overwrite the default for storage data format.
-	s.Etcd.DefaultStorageMediaType = "application/vnd.kubernetes.protobuf"
+	//s.Etcd.DefaultStorageMediaType = "application/vnd.kubernetes.protobuf"
 
 	return &s
 }
@@ -131,7 +129,6 @@ func (s *ServerRunOptions) AddFlags(fs *pflag.FlagSet) {
 	s.SecureServing.AddFlags(fs)
 	s.InsecureServing.AddFlags(fs)
 	s.InsecureServing.AddDeprecatedFlags(fs)
-	s.Audit.AddFlags(fs)
 	s.Features.AddFlags(fs)
 	s.Authentication.AddFlags(fs)
 	s.Authorization.AddFlags(fs)

cmd/kube-apiserver/app/options/validation.go

@@ -67,9 +67,6 @@ func (options *ServerRunOptions) Validate() []error {
 	if errs := options.Authentication.Validate(); len(errs) > 0 {
 		errors = append(errors, errs...)
 	}
-	if errs := options.Audit.Validate(); len(errs) > 0 {
-		errors = append(errors, errs...)
-	}
 	if errs := options.Admission.Validate(); len(errs) > 0 {
 		errors = append(errors, errs...)
 	}

cmd/kube-controller-manager/app/plugins.go

@@ -25,34 +25,17 @@ import (
 
 	// Cloud providers
 	"k8s.io/kubernetes/pkg/apis/componentconfig"
-	_ "k8s.io/kubernetes/pkg/cloudprovider/providers"
 
 	// Volume plugins
 	"github.com/golang/glog"
 	"k8s.io/kubernetes/pkg/cloudprovider"
 	"k8s.io/kubernetes/pkg/volume"
-	"k8s.io/kubernetes/pkg/volume/aws_ebs"
-	"k8s.io/kubernetes/pkg/volume/azure_dd"
-	"k8s.io/kubernetes/pkg/volume/azure_file"
-	"k8s.io/kubernetes/pkg/volume/cinder"
 	"k8s.io/kubernetes/pkg/volume/csi"
-	"k8s.io/kubernetes/pkg/volume/fc"
 	"k8s.io/kubernetes/pkg/volume/flexvolume"
-	"k8s.io/kubernetes/pkg/volume/flocker"
-	"k8s.io/kubernetes/pkg/volume/gce_pd"
-	"k8s.io/kubernetes/pkg/volume/glusterfs"
 	"k8s.io/kubernetes/pkg/volume/host_path"
-	"k8s.io/kubernetes/pkg/volume/iscsi"
 	"k8s.io/kubernetes/pkg/volume/local"
 	"k8s.io/kubernetes/pkg/volume/nfs"
-	"k8s.io/kubernetes/pkg/volume/photon_pd"
-	"k8s.io/kubernetes/pkg/volume/portworx"
-	"k8s.io/kubernetes/pkg/volume/quobyte"
-	"k8s.io/kubernetes/pkg/volume/rbd"
-	"k8s.io/kubernetes/pkg/volume/scaleio"
-	"k8s.io/kubernetes/pkg/volume/storageos"
 	volumeutil "k8s.io/kubernetes/pkg/volume/util"
-	"k8s.io/kubernetes/pkg/volume/vsphere_volume"
 
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/kubernetes/pkg/features"
@@ -65,18 +48,6 @@ import (
 func ProbeAttachableVolumePlugins() []volume.VolumePlugin {
 	allPlugins := []volume.VolumePlugin{}
 
-	allPlugins = append(allPlugins, aws_ebs.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, gce_pd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, cinder.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, portworx.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, vsphere_volume.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, azure_dd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, photon_pd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, scaleio.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, storageos.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, fc.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, iscsi.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, rbd.ProbeVolumePlugins()...)
 	if utilfeature.DefaultFeatureGate.Enabled(features.CSIPersistentVolume) {
 		allPlugins = append(allPlugins, csi.ProbeVolumePlugins()...)
 	}
@@ -94,19 +65,6 @@ func GetDynamicPluginProber(config componentconfig.VolumeConfiguration) volume.D
 func ProbeExpandableVolumePlugins(config componentconfig.VolumeConfiguration) []volume.VolumePlugin {
 	allPlugins := []volume.VolumePlugin{}
 
-	allPlugins = append(allPlugins, aws_ebs.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, gce_pd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, cinder.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, portworx.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, vsphere_volume.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, glusterfs.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, rbd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, azure_dd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, azure_file.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, photon_pd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, scaleio.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, storageos.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, fc.ProbeVolumePlugins()...)
 	return allPlugins
 }
 
@@ -145,24 +103,7 @@ func ProbeControllerVolumePlugins(cloud cloudprovider.Interface, config componen
 		glog.Fatalf("Could not create NFS recycler pod from file %s: %+v", config.PersistentVolumeRecyclerConfiguration.PodTemplateFilePathNFS, err)
 	}
 	allPlugins = append(allPlugins, nfs.ProbeVolumePlugins(nfsConfig)...)
-	allPlugins = append(allPlugins, glusterfs.ProbeVolumePlugins()...)
-	// add rbd provisioner
-	allPlugins = append(allPlugins, rbd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, quobyte.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, azure_file.ProbeVolumePlugins()...)
-
-	allPlugins = append(allPlugins, flocker.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, portworx.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, scaleio.ProbeVolumePlugins()...)
 	allPlugins = append(allPlugins, local.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, storageos.ProbeVolumePlugins()...)
-
-	allPlugins = append(allPlugins, aws_ebs.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, gce_pd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, cinder.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, vsphere_volume.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, azure_dd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, photon_pd.ProbeVolumePlugins()...)
 
 	return allPlugins
 }

cmd/kube-scheduler/app/server.go

@@ -550,7 +550,7 @@ func createClients(config componentconfig.ClientConnectionConfiguration, masterO
 }
 
 // Run runs the SchedulerServer. This should never exit.
-func (s *SchedulerServer) Run(stop chan struct{}) error {
+func (s *SchedulerServer) Run(stop <-chan struct{}) error {
 	// To help debugging, immediately log version
 	glog.Infof("Version: %+v", version.Get())
 

cmd/kubelet/app/auth.go

@@ -86,17 +86,6 @@ func BuildAuthz(client authorizationclient.SubjectAccessReviewInterface, authz k
 	case kubeletconfig.KubeletAuthorizationModeAlwaysAllow:
 		return authorizerfactory.NewAlwaysAllowAuthorizer(), nil
 
-	case kubeletconfig.KubeletAuthorizationModeWebhook:
-		if client == nil {
-			return nil, errors.New("no client provided, cannot use webhook authorization")
-		}
-		authorizerConfig := authorizerfactory.DelegatingAuthorizerConfig{
-			SubjectAccessReviewClient: client,
-			AllowCacheTTL:             authz.Webhook.CacheAuthorizedTTL.Duration,
-			DenyCacheTTL:              authz.Webhook.CacheUnauthorizedTTL.Duration,
-		}
-		return authorizerConfig.New()
-
 	case "":
 		return nil, fmt.Errorf("No authorization mode specified")
 

cmd/kubelet/app/options/container_runtime.go

@@ -48,7 +48,7 @@ func NewContainerRuntimeOptions() *config.ContainerRuntimeOptions {
 	}
 
 	return &config.ContainerRuntimeOptions{
-		ContainerRuntime:          kubetypes.DockerContainerRuntime,
+		ContainerRuntime:          kubetypes.RemoteContainerRuntime,
 		DockerEndpoint:            dockerEndpoint,
 		DockershimRootDirectory:   "/var/lib/dockershim",
 		DockerDisableSharedPID:    true,

cmd/kubelet/app/options/globalflags.go

@@ -30,8 +30,6 @@ import (
 
 	// ensure libs have a chance to globally register their flags
 	_ "github.com/golang/glog"
-	_ "k8s.io/kubernetes/pkg/credentialprovider/azure"
-	_ "k8s.io/kubernetes/pkg/credentialprovider/gcp"
 )
 
 // AddGlobalFlags explicitly registers flags that libraries (glog, verflag, etc.) register
@@ -40,7 +38,6 @@ import (
 func AddGlobalFlags(fs *pflag.FlagSet) {
 	addGlogFlags(fs)
 	addCadvisorFlags(fs)
-	addCredentialProviderFlags(fs)
 	verflag.AddFlags(fs)
 	logs.AddFlags(fs)
 }
@@ -84,22 +81,6 @@ func pflagRegisterDeprecated(global, local *pflag.FlagSet, globalName, deprecate
 	local.Lookup(normalize(globalName)).Deprecated = deprecated
 }
 
-// addCredentialProviderFlags adds flags from k8s.io/kubernetes/pkg/credentialprovider
-func addCredentialProviderFlags(fs *pflag.FlagSet) {
-	// lookup flags in global flag set and re-register the values with our flagset
-	global := pflag.CommandLine
-	local := pflag.NewFlagSet(os.Args[0], pflag.ExitOnError)
-
-	// Note this is deprecated in the library that provides it, so we just allow that deprecation
-	// notice to pass through our registration here.
-	pflagRegister(global, local, "google-json-key")
-	// TODO(#58034): This is not a static file, so it's not quite as straightforward as --google-json-key.
-	// We need to figure out how ACR users can dynamically provide pull credentials before we can deprecate this.
-	pflagRegister(global, local, "azure-container-registry-config")
-
-	fs.AddFlagSet(local)
-}
-
 // addGlogFlags adds flags from github.com/golang/glog
 func addGlogFlags(fs *pflag.FlagSet) {
 	// lookup flags in global flag set and re-register the values with our flagset

cmd/kubelet/app/plugins.go

@@ -18,47 +18,22 @@ package app
 
 // This file exists to force the desired plugin implementations to be linked.
 import (
-	// Credential providers
-	_ "k8s.io/kubernetes/pkg/credentialprovider/aws"
-	_ "k8s.io/kubernetes/pkg/credentialprovider/azure"
-	_ "k8s.io/kubernetes/pkg/credentialprovider/gcp"
-	_ "k8s.io/kubernetes/pkg/credentialprovider/rancher"
 	// Network plugins
 	"k8s.io/kubernetes/pkg/kubelet/network"
 	"k8s.io/kubernetes/pkg/kubelet/network/cni"
-	"k8s.io/kubernetes/pkg/kubelet/network/kubenet"
 	// Volume plugins
 	"k8s.io/kubernetes/pkg/volume"
-	"k8s.io/kubernetes/pkg/volume/aws_ebs"
-	"k8s.io/kubernetes/pkg/volume/azure_dd"
-	"k8s.io/kubernetes/pkg/volume/azure_file"
-	"k8s.io/kubernetes/pkg/volume/cephfs"
-	"k8s.io/kubernetes/pkg/volume/cinder"
 	"k8s.io/kubernetes/pkg/volume/configmap"
 	"k8s.io/kubernetes/pkg/volume/csi"
 	"k8s.io/kubernetes/pkg/volume/downwardapi"
 	"k8s.io/kubernetes/pkg/volume/empty_dir"
-	"k8s.io/kubernetes/pkg/volume/fc"
 	"k8s.io/kubernetes/pkg/volume/flexvolume"
-	"k8s.io/kubernetes/pkg/volume/flocker"
-	"k8s.io/kubernetes/pkg/volume/gce_pd"
 	"k8s.io/kubernetes/pkg/volume/git_repo"
-	"k8s.io/kubernetes/pkg/volume/glusterfs"
 	"k8s.io/kubernetes/pkg/volume/host_path"
-	"k8s.io/kubernetes/pkg/volume/iscsi"
 	"k8s.io/kubernetes/pkg/volume/local"
 	"k8s.io/kubernetes/pkg/volume/nfs"
-	"k8s.io/kubernetes/pkg/volume/photon_pd"
-	"k8s.io/kubernetes/pkg/volume/portworx"
 	"k8s.io/kubernetes/pkg/volume/projected"
-	"k8s.io/kubernetes/pkg/volume/quobyte"
-	"k8s.io/kubernetes/pkg/volume/rbd"
-	"k8s.io/kubernetes/pkg/volume/scaleio"
 	"k8s.io/kubernetes/pkg/volume/secret"
-	"k8s.io/kubernetes/pkg/volume/storageos"
-	"k8s.io/kubernetes/pkg/volume/vsphere_volume"
-	// Cloud providers
-	_ "k8s.io/kubernetes/pkg/cloudprovider/providers"
 	// features check
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/kubernetes/pkg/features"
@@ -74,32 +49,15 @@ func ProbeVolumePlugins() []volume.VolumePlugin {
 	//
 	// Kubelet does not currently need to configure volume plugins.
 	// If/when it does, see kube-controller-manager/app/plugins.go for example of using volume.VolumeConfig
-	allPlugins = append(allPlugins, aws_ebs.ProbeVolumePlugins()...)
 	allPlugins = append(allPlugins, empty_dir.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, gce_pd.ProbeVolumePlugins()...)
 	allPlugins = append(allPlugins, git_repo.ProbeVolumePlugins()...)
 	allPlugins = append(allPlugins, host_path.ProbeVolumePlugins(volume.VolumeConfig{})...)
 	allPlugins = append(allPlugins, nfs.ProbeVolumePlugins(volume.VolumeConfig{})...)
 	allPlugins = append(allPlugins, secret.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, iscsi.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, glusterfs.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, rbd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, cinder.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, quobyte.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, cephfs.ProbeVolumePlugins()...)
 	allPlugins = append(allPlugins, downwardapi.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, fc.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, flocker.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, azure_file.ProbeVolumePlugins()...)
 	allPlugins = append(allPlugins, configmap.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, vsphere_volume.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, azure_dd.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, photon_pd.ProbeVolumePlugins()...)
 	allPlugins = append(allPlugins, projected.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, portworx.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, scaleio.ProbeVolumePlugins()...)
 	allPlugins = append(allPlugins, local.ProbeVolumePlugins()...)
-	allPlugins = append(allPlugins, storageos.ProbeVolumePlugins()...)
 	if utilfeature.DefaultFeatureGate.Enabled(features.CSIPersistentVolume) {
 		allPlugins = append(allPlugins, csi.ProbeVolumePlugins()...)
 	}
@@ -119,7 +77,6 @@ func ProbeNetworkPlugins(cniConfDir, cniBinDir string) []network.NetworkPlugin {
 
 	// for each existing plugin, add to the list
 	allPlugins = append(allPlugins, cni.ProbeNetworkPlugins(cniConfDir, cniBinDir)...)
-	allPlugins = append(allPlugins, kubenet.NewPlugin(cniBinDir))
 
 	return allPlugins
 }

cmd/kubelet/app/server.go

@@ -26,7 +26,6 @@ import (
 	"net"
 	"net/http"
 	_ "net/http/pprof"
-	"net/url"
 	"os"
 	"path"
 	"path/filepath"
@@ -74,14 +73,11 @@ import (
 	"k8s.io/kubernetes/pkg/kubelet/cm"
 	"k8s.io/kubernetes/pkg/kubelet/config"
 	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
-	"k8s.io/kubernetes/pkg/kubelet/dockershim"
-	dockerremote "k8s.io/kubernetes/pkg/kubelet/dockershim/remote"
 	"k8s.io/kubernetes/pkg/kubelet/eviction"
 	evictionapi "k8s.io/kubernetes/pkg/kubelet/eviction/api"
 	dynamickubeletconfig "k8s.io/kubernetes/pkg/kubelet/kubeletconfig"
 	"k8s.io/kubernetes/pkg/kubelet/kubeletconfig/configfiles"
 	"k8s.io/kubernetes/pkg/kubelet/server"
-	"k8s.io/kubernetes/pkg/kubelet/server/streaming"
 	kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
 	"k8s.io/kubernetes/pkg/util/configz"
 	utilfs "k8s.io/kubernetes/pkg/util/filesystem"
@@ -221,13 +217,6 @@ HTTP server: The kubelet can also listen for HTTP and respond to a simple API
 			// add the kubelet config controller to kubeletDeps
 			kubeletDeps.KubeletConfigController = kubeletConfigController
 
-			// start the experimental docker shim, if enabled
-			if kubeletServer.KubeletFlags.ExperimentalDockershim {
-				if err := RunDockershim(&kubeletServer.KubeletFlags, kubeletConfig); err != nil {
-					glog.Fatal(err)
-				}
-			}
-
 			// run the kubelet
 			if err := Run(kubeletServer, kubeletDeps); err != nil {
 				glog.Fatal(err)
@@ -338,21 +327,11 @@ func UnsecuredDependencies(s *options.KubeletServer) (*kubelet.Dependencies, err
 		writer = &kubeio.NsenterWriter{}
 	}
 
-	var dockerClientConfig *dockershim.ClientConfig
-	if s.ContainerRuntime == kubetypes.DockerContainerRuntime {
-		dockerClientConfig = &dockershim.ClientConfig{
-			DockerEndpoint:            s.DockerEndpoint,
-			RuntimeRequestTimeout:     s.RuntimeRequestTimeout.Duration,
-			ImagePullProgressDeadline: s.ImagePullProgressDeadline.Duration,
-		}
-	}
-
 	return &kubelet.Dependencies{
 		Auth:                nil, // default does not enforce auth[nz]
 		CAdvisorInterface:   nil, // cadvisor.New launches background processes (bg http.ListenAndServe, and some bg cleaners), not set here
 		Cloud:               nil, // cloud provider might start background processes
 		ContainerManager:    nil,
-		DockerClientConfig:  dockerClientConfig,
 		KubeClient:          nil,
 		HeartbeatClient:     nil,
 		ExternalKubeClient:  nil,
@@ -1099,52 +1078,3 @@ func BootstrapKubeletConfigController(defaultConfig *kubeletconfiginternal.Kubel
 	return kc, c, nil
 }
 
-// RunDockershim only starts the dockershim in current process. This is only used for cri validate testing purpose
-// TODO(random-liu): Move this to a separate binary.
-func RunDockershim(f *options.KubeletFlags, c *kubeletconfiginternal.KubeletConfiguration) error {
-	r := &f.ContainerRuntimeOptions
-
-	// Initialize docker client configuration.
-	dockerClientConfig := &dockershim.ClientConfig{
-		DockerEndpoint:            r.DockerEndpoint,
-		RuntimeRequestTimeout:     c.RuntimeRequestTimeout.Duration,
-		ImagePullProgressDeadline: r.ImagePullProgressDeadline.Duration,
-	}
-
-	// Initialize network plugin settings.
-	nh := &kubelet.NoOpLegacyHost{}
-	pluginSettings := dockershim.NetworkPluginSettings{
-		HairpinMode:       kubeletconfiginternal.HairpinMode(c.HairpinMode),
-		NonMasqueradeCIDR: f.NonMasqueradeCIDR,
-		PluginName:        r.NetworkPluginName,
-		PluginConfDir:     r.CNIConfDir,
-		PluginBinDir:      r.CNIBinDir,
-		MTU:               int(r.NetworkPluginMTU),
-		LegacyRuntimeHost: nh,
-	}
-
-	// Initialize streaming configuration. (Not using TLS now)
-	streamingConfig := &streaming.Config{
-		// Use a relative redirect (no scheme or host).
-		BaseURL:                         &url.URL{Path: "/cri/"},
-		StreamIdleTimeout:               c.StreamingConnectionIdleTimeout.Duration,
-		StreamCreationTimeout:           streaming.DefaultConfig.StreamCreationTimeout,
-		SupportedRemoteCommandProtocols: streaming.DefaultConfig.SupportedRemoteCommandProtocols,
-		SupportedPortForwardProtocols:   streaming.DefaultConfig.SupportedPortForwardProtocols,
-	}
-
-	ds, err := dockershim.NewDockerService(dockerClientConfig, r.PodSandboxImage, streamingConfig, &pluginSettings,
-		f.RuntimeCgroups, c.CgroupDriver, r.DockershimRootDirectory, r.DockerDisableSharedPID)
-	if err != nil {
-		return err
-	}
-	glog.V(2).Infof("Starting the GRPC server for the docker CRI shim.")
-	server := dockerremote.NewDockerServer(f.RemoteRuntimeEndpoint, ds)
-	if err := server.Start(); err != nil {
-		return err
-	}
-
-	// Start the streaming server
-	addr := net.JoinHostPort(c.Address, strconv.Itoa(int(c.Port)))
-	return http.ListenAndServe(addr, ds)
-}

pkg/apis/core/validation/validation.go

@@ -4867,12 +4867,12 @@ func validateNonSpecialIP(ipAddress string, fldPath *field.Path) field.ErrorList
 	if ip.IsUnspecified() {
 		allErrs = append(allErrs, field.Invalid(fldPath, ipAddress, "may not be unspecified (0.0.0.0)"))
 	}
-	if ip.IsLoopback() {
-		allErrs = append(allErrs, field.Invalid(fldPath, ipAddress, "may not be in the loopback range (127.0.0.0/8)"))
-	}
-	if ip.IsLinkLocalUnicast() {
-		allErrs = append(allErrs, field.Invalid(fldPath, ipAddress, "may not be in the link-local range (169.254.0.0/16)"))
-	}
+	//if ip.IsLoopback() {
+	//	allErrs = append(allErrs, field.Invalid(fldPath, ipAddress, "may not be in the loopback range (127.0.0.0/8)"))
+	//}
+	//if ip.IsLinkLocalUnicast() {
+	//	allErrs = append(allErrs, field.Invalid(fldPath, ipAddress, "may not be in the link-local range (169.254.0.0/16)"))
+	//}
 	if ip.IsLinkLocalMulticast() {
 		allErrs = append(allErrs, field.Invalid(fldPath, ipAddress, "may not be in the link-local multicast range (224.0.0.0/24)"))
 	}

pkg/controller/nodeipam/ipam/cidr_allocator.go

@@ -45,15 +45,6 @@ const (
 	// RangeAllocatorType is the allocator that uses an internal CIDR
 	// range allocator to do node CIDR range allocations.
 	RangeAllocatorType CIDRAllocatorType = "RangeAllocator"
-	// CloudAllocatorType is the allocator that uses cloud platform
-	// support to do node CIDR range allocations.
-	CloudAllocatorType CIDRAllocatorType = "CloudAllocator"
-	// IPAMFromClusterAllocatorType uses the ipam controller sync'ing the node
-	// CIDR range allocations from the cluster to the cloud.
-	IPAMFromClusterAllocatorType = "IPAMFromCluster"
-	// IPAMFromCloudAllocatorType uses the ipam controller sync'ing the node
-	// CIDR range allocations from the cloud to the cluster.
-	IPAMFromCloudAllocatorType = "IPAMFromCloud"
 )
 
 // TODO: figure out the good setting for those constants.
@@ -100,8 +91,6 @@ func New(kubeClient clientset.Interface, cloud cloudprovider.Interface, nodeInfo
 	switch allocatorType {
 	case RangeAllocatorType:
 		return NewCIDRRangeAllocator(kubeClient, nodeInformer, clusterCIDR, serviceCIDR, nodeCIDRMaskSize, nodeList)
-	case CloudAllocatorType:
-		return NewCloudCIDRAllocator(kubeClient, cloud, nodeInformer)
 	default:
 		return nil, fmt.Errorf("Invalid CIDR allocator type: %v", allocatorType)
 	}

pkg/controller/nodeipam/node_ipam_controller.go

@@ -18,8 +18,6 @@ package nodeipam
 
 import (
 	"net"
-	"time"
-
 		"github.com/golang/glog"
 
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
@@ -35,7 +33,6 @@ import (
 	"k8s.io/kubernetes/pkg/cloudprovider"
 	"k8s.io/kubernetes/pkg/controller"
 	"k8s.io/kubernetes/pkg/controller/nodeipam/ipam"
-	nodesync "k8s.io/kubernetes/pkg/controller/nodeipam/ipam/sync"
 		"k8s.io/kubernetes/pkg/util/metrics"
 )
 
@@ -44,18 +41,6 @@ func init() {
 	Register()
 }
 
-const (
-	// ipamResyncInterval is the amount of time between when the cloud and node
-	// CIDR range assignments are synchronized.
-	ipamResyncInterval = 30 * time.Second
-	// ipamMaxBackoff is the maximum backoff for retrying synchronization of a
-	// given in the error state.
-	ipamMaxBackoff = 10 * time.Second
-	// ipamInitialRetry is the initial retry interval for retrying synchronization of a
-	// given in the error state.
-	ipamInitialBackoff = 250 * time.Millisecond
-)
-
 // Controller is the controller that manages node ipam state.
 type Controller struct {
 	allocatorType ipam.CIDRAllocatorType
@@ -123,34 +108,12 @@ func NewNodeIpamController(
 		allocatorType: allocatorType,
 	}
 
-	// TODO: Abstract this check into a generic controller manager should run method.
-	if ic.allocatorType == ipam.IPAMFromClusterAllocatorType || ic.allocatorType == ipam.IPAMFromCloudAllocatorType {
-		cfg := &ipam.Config{
-			Resync:       ipamResyncInterval,
-			MaxBackoff:   ipamMaxBackoff,
-			InitialRetry: ipamInitialBackoff,
-		}
-		switch ic.allocatorType {
-		case ipam.IPAMFromClusterAllocatorType:
-			cfg.Mode = nodesync.SyncFromCluster
-		case ipam.IPAMFromCloudAllocatorType:
-			cfg.Mode = nodesync.SyncFromCloud
-		}
-		ipamc, err := ipam.NewController(cfg, kubeClient, cloud, clusterCIDR, serviceCIDR, nodeCIDRMaskSize)
-		if err != nil {
-			glog.Fatalf("Error creating ipam controller: %v", err)
-		}
-		if err := ipamc.Start(nodeInformer); err != nil {
-			glog.Fatalf("Error trying to Init(): %v", err)
-		}
-	} else {
 	var err error
 	ic.cidrAllocator, err = ipam.New(
 		kubeClient, cloud, nodeInformer, ic.allocatorType, ic.clusterCIDR, ic.serviceCIDR, nodeCIDRMaskSize)
 	if err != nil {
 		return nil, err
 	}
-	}
 
 	ic.nodeLister = nodeInformer.Lister()
 	ic.nodeInformerSynced = nodeInformer.Informer().HasSynced
@@ -169,9 +132,7 @@ func (nc *Controller) Run(stopCh <-chan struct{}) {
 		return
 	}
 
-	if nc.allocatorType != ipam.IPAMFromClusterAllocatorType && nc.allocatorType != ipam.IPAMFromCloudAllocatorType {
 	go nc.cidrAllocator.Run(stopCh)
-	}
 
 	<-stopCh
 }

pkg/kubeapiserver/authorizer/config.go

@@ -19,14 +19,11 @@ package authorizer
 import (
 	"errors"
 	"fmt"
-	"time"
 
 	"k8s.io/apiserver/pkg/authorization/authorizer"
 	"k8s.io/apiserver/pkg/authorization/authorizerfactory"
 	"k8s.io/apiserver/pkg/authorization/union"
-	"k8s.io/apiserver/plugin/pkg/authorizer/webhook"
 	versionedinformers "k8s.io/client-go/informers"
-	"k8s.io/kubernetes/pkg/auth/authorizer/abac"
 	"k8s.io/kubernetes/pkg/auth/nodeidentifier"
 	informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/internalversion"
 	"k8s.io/kubernetes/pkg/kubeapiserver/authorizer/modes"
@@ -38,20 +35,6 @@ import (
 type AuthorizationConfig struct {
 	AuthorizationModes []string
 
-	// Options for ModeABAC
-
-	// Path to an ABAC policy file.
-	PolicyFile string
-
-	// Options for ModeWebhook
-
-	// Kubeconfig file for Webhook authorization plugin.
-	WebhookConfigFile string
-	// TTL for caching of authorized responses from the webhook server.
-	WebhookCacheAuthorizedTTL time.Duration
-	// TTL for caching of unauthorized responses from the webhook server.
-	WebhookCacheUnauthorizedTTL time.Duration
-
 	InformerFactory          informers.SharedInformerFactory
 	VersionedInformerFactory versionedinformers.SharedInformerFactory
 }
@@ -95,28 +78,6 @@ func (config AuthorizationConfig) New() (authorizer.Authorizer, authorizer.RuleR
 			alwaysDenyAuthorizer := authorizerfactory.NewAlwaysDenyAuthorizer()
 			authorizers = append(authorizers, alwaysDenyAuthorizer)
 			ruleResolvers = append(ruleResolvers, alwaysDenyAuthorizer)
-		case modes.ModeABAC:
-			if config.PolicyFile == "" {
-				return nil, nil, errors.New("ABAC's authorization policy file not passed")
-			}
-			abacAuthorizer, err := abac.NewFromFile(config.PolicyFile)
-			if err != nil {
-				return nil, nil, err
-			}
-			authorizers = append(authorizers, abacAuthorizer)
-			ruleResolvers = append(ruleResolvers, abacAuthorizer)
-		case modes.ModeWebhook:
-			if config.WebhookConfigFile == "" {
-				return nil, nil, errors.New("Webhook's configuration file not passed")
-			}
-			webhookAuthorizer, err := webhook.New(config.WebhookConfigFile,
-				config.WebhookCacheAuthorizedTTL,
-				config.WebhookCacheUnauthorizedTTL)
-			if err != nil {
-				return nil, nil, err
-			}
-			authorizers = append(authorizers, webhookAuthorizer)
-			ruleResolvers = append(ruleResolvers, webhookAuthorizer)
 		case modes.ModeRBAC:
 			rbacAuthorizer := rbac.New(
 				&rbac.RoleGetter{Lister: config.InformerFactory.Rbac().InternalVersion().Roles().Lister()},
@@ -132,12 +93,5 @@ func (config AuthorizationConfig) New() (authorizer.Authorizer, authorizer.RuleR
 		authorizerMap[authorizationMode] = true
 	}
 
-	if !authorizerMap[modes.ModeABAC] && config.PolicyFile != "" {
-		return nil, nil, errors.New("Cannot specify --authorization-policy-file without mode ABAC")
-	}
-	if !authorizerMap[modes.ModeWebhook] && config.WebhookConfigFile != "" {
-		return nil, nil, errors.New("Cannot specify --authorization-webhook-config-file without mode Webhook")
-	}
-
 	return union.New(authorizers...), union.NewRuleResolvers(ruleResolvers...), nil
 }

pkg/kubeapiserver/authorizer/modes/modes.go

@@ -21,13 +21,11 @@ import "k8s.io/apimachinery/pkg/util/sets"
 const (
 	ModeAlwaysAllow string = "AlwaysAllow"
 	ModeAlwaysDeny  string = "AlwaysDeny"
-	ModeABAC        string = "ABAC"
-	ModeWebhook     string = "Webhook"
 	ModeRBAC        string = "RBAC"
 	ModeNode        string = "Node"
 )
 
-var AuthorizationModeChoices = []string{ModeAlwaysAllow, ModeAlwaysDeny, ModeABAC, ModeWebhook, ModeRBAC, ModeNode}
+var AuthorizationModeChoices = []string{ModeAlwaysAllow, ModeAlwaysDeny, ModeRBAC, ModeNode}
 
 // IsValidAuthorizationMode returns true if the given authorization mode is a valid one for the apiserver
 func IsValidAuthorizationMode(authzMode string) bool {

pkg/kubeapiserver/options/authorization.go

@@ -18,7 +18,6 @@ package options
 
 import (
 	"strings"
-	"time"
 
 	"github.com/spf13/pflag"
 
@@ -30,17 +29,11 @@ import (
 
 type BuiltInAuthorizationOptions struct {
 	Mode string
-	PolicyFile                  string
-	WebhookConfigFile           string
-	WebhookCacheAuthorizedTTL   time.Duration
-	WebhookCacheUnauthorizedTTL time.Duration
 }
 
 func NewBuiltInAuthorizationOptions() *BuiltInAuthorizationOptions {
 	return &BuiltInAuthorizationOptions{
-		Mode: authzmodes.ModeAlwaysAllow,
-		WebhookCacheAuthorizedTTL:   5 * time.Minute,
-		WebhookCacheUnauthorizedTTL: 30 * time.Second,
+		Mode: authzmodes.ModeNode + "," + authzmodes.ModeAlwaysAllow,
 	}
 }
 
@@ -54,21 +47,6 @@ func (s *BuiltInAuthorizationOptions) AddFlags(fs *pflag.FlagSet) {
 		"Ordered list of plug-ins to do authorization on secure port. Comma-delimited list of: "+
 		strings.Join(authzmodes.AuthorizationModeChoices, ",")+".")
 
-	fs.StringVar(&s.PolicyFile, "authorization-policy-file", s.PolicyFile, ""+
-		"File with authorization policy in csv format, used with --authorization-mode=ABAC, on the secure port.")
-
-	fs.StringVar(&s.WebhookConfigFile, "authorization-webhook-config-file", s.WebhookConfigFile, ""+
-		"File with webhook configuration in kubeconfig format, used with --authorization-mode=Webhook. "+
-		"The API server will query the remote service to determine access on the API server's secure port.")
-
-	fs.DurationVar(&s.WebhookCacheAuthorizedTTL, "authorization-webhook-cache-authorized-ttl",
-		s.WebhookCacheAuthorizedTTL,
-		"The duration to cache 'authorized' responses from the webhook authorizer.")
-
-	fs.DurationVar(&s.WebhookCacheUnauthorizedTTL,
-		"authorization-webhook-cache-unauthorized-ttl", s.WebhookCacheUnauthorizedTTL,
-		"The duration to cache 'unauthorized' responses from the webhook authorizer.")
-
 	fs.String("authorization-rbac-super-user", "", ""+
 		"If specified, a username which avoids RBAC authorization checks and role binding "+
 		"privilege escalation checks, to be used with --authorization-mode=RBAC.")
@@ -87,10 +65,6 @@ func (s *BuiltInAuthorizationOptions) Modes() []string {
 func (s *BuiltInAuthorizationOptions) ToAuthorizationConfig(informerFactory informers.SharedInformerFactory, versionedInformerFactory versionedinformers.SharedInformerFactory) authorizer.AuthorizationConfig {
 	return authorizer.AuthorizationConfig{
 		AuthorizationModes:       s.Modes(),
-		PolicyFile:                  s.PolicyFile,
-		WebhookConfigFile:           s.WebhookConfigFile,
-		WebhookCacheAuthorizedTTL:   s.WebhookCacheAuthorizedTTL,
-		WebhookCacheUnauthorizedTTL: s.WebhookCacheUnauthorizedTTL,
 		InformerFactory:          informerFactory,
 		VersionedInformerFactory: versionedInformerFactory,
 	}

pkg/kubeapiserver/options/plugins.go

@@ -20,126 +20,36 @@ package options
 // This should probably be part of some configuration fed into the build for a
 // given binary target.
 import (
-	// Cloud providers
-	_ "k8s.io/kubernetes/pkg/cloudprovider/providers"
-
-	// Admission policies
-	"k8s.io/kubernetes/plugin/pkg/admission/admit"
-	"k8s.io/kubernetes/plugin/pkg/admission/alwayspullimages"
-	"k8s.io/kubernetes/plugin/pkg/admission/antiaffinity"
-	"k8s.io/kubernetes/plugin/pkg/admission/defaulttolerationseconds"
-	"k8s.io/kubernetes/plugin/pkg/admission/deny"
-	"k8s.io/kubernetes/plugin/pkg/admission/eventratelimit"
-	"k8s.io/kubernetes/plugin/pkg/admission/exec"
-	"k8s.io/kubernetes/plugin/pkg/admission/extendedresourcetoleration"
-	"k8s.io/kubernetes/plugin/pkg/admission/gc"
-	"k8s.io/kubernetes/plugin/pkg/admission/imagepolicy"
-	"k8s.io/kubernetes/plugin/pkg/admission/initialresources"
-	"k8s.io/kubernetes/plugin/pkg/admission/limitranger"
-	"k8s.io/kubernetes/plugin/pkg/admission/namespace/autoprovision"
-	"k8s.io/kubernetes/plugin/pkg/admission/namespace/exists"
-	"k8s.io/kubernetes/plugin/pkg/admission/noderestriction"
-	"k8s.io/kubernetes/plugin/pkg/admission/persistentvolume/label"
-	"k8s.io/kubernetes/plugin/pkg/admission/persistentvolume/resize"
-	"k8s.io/kubernetes/plugin/pkg/admission/podnodeselector"
-	"k8s.io/kubernetes/plugin/pkg/admission/podpreset"
-	"k8s.io/kubernetes/plugin/pkg/admission/podtolerationrestriction"
-	podpriority "k8s.io/kubernetes/plugin/pkg/admission/priority"
-	"k8s.io/kubernetes/plugin/pkg/admission/resourcequota"
-	"k8s.io/kubernetes/plugin/pkg/admission/security/podsecuritypolicy"
-	"k8s.io/kubernetes/plugin/pkg/admission/securitycontext/scdeny"
 	"k8s.io/kubernetes/plugin/pkg/admission/serviceaccount"
 	"k8s.io/kubernetes/plugin/pkg/admission/storage/storageclass/setdefault"
-	"k8s.io/kubernetes/plugin/pkg/admission/storage/storageobjectinuseprotection"
 
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/apiserver/pkg/admission"
 	"k8s.io/apiserver/pkg/admission/plugin/initialization"
 	"k8s.io/apiserver/pkg/admission/plugin/namespace/lifecycle"
-	mutatingwebhook "k8s.io/apiserver/pkg/admission/plugin/webhook/mutating"
-	validatingwebhook "k8s.io/apiserver/pkg/admission/plugin/webhook/validating"
 )
 
 // AllOrderedPlugins is the list of all the plugins in order.
 var AllOrderedPlugins = []string{
-	admit.PluginName,                        // AlwaysAdmit
-	autoprovision.PluginName,                // NamespaceAutoProvision
 	lifecycle.PluginName,                    // NamespaceLifecycle
-	exists.PluginName,                       // NamespaceExists
-	scdeny.PluginName,                       // SecurityContextDeny
-	antiaffinity.PluginName,                 // LimitPodHardAntiAffinityTopology
-	initialresources.PluginName,             // InitialResources
-	podpreset.PluginName,                    // PodPreset
-	limitranger.PluginName,                  // LimitRanger
 	serviceaccount.PluginName,               // ServiceAccount
-	noderestriction.PluginName,              // NodeRestriction
-	alwayspullimages.PluginName,             // AlwaysPullImages
-	imagepolicy.PluginName,                  // ImagePolicyWebhook
-	podsecuritypolicy.PluginName,            // PodSecurityPolicy
-	podnodeselector.PluginName,              // PodNodeSelector
-	podpriority.PluginName,                  // Priority
-	defaulttolerationseconds.PluginName,     // DefaultTolerationSeconds
-	podtolerationrestriction.PluginName,     // PodTolerationRestriction
-	exec.DenyEscalatingExec,                 // DenyEscalatingExec
-	exec.DenyExecOnPrivileged,               // DenyExecOnPrivileged
-	eventratelimit.PluginName,               // EventRateLimit
-	extendedresourcetoleration.PluginName,   // ExtendedResourceToleration
-	label.PluginName,                        // PersistentVolumeLabel
 	setdefault.PluginName,                   // DefaultStorageClass
-	storageobjectinuseprotection.PluginName, // StorageObjectInUseProtection
-	gc.PluginName,                           // OwnerReferencesPermissionEnforcement
-	resize.PluginName,                       // PersistentVolumeClaimResize
-	mutatingwebhook.PluginName,              // MutatingAdmissionWebhook
 	initialization.PluginName,               // Initializers
-	validatingwebhook.PluginName,            // ValidatingAdmissionWebhook
-	resourcequota.PluginName,                // ResourceQuota
-	deny.PluginName,                         // AlwaysDeny
 }
 
 // RegisterAllAdmissionPlugins registers all admission plugins and
 // sets the recommended plugins order.
 func RegisterAllAdmissionPlugins(plugins *admission.Plugins) {
-	admit.Register(plugins) // DEPRECATED as no real meaning
-	alwayspullimages.Register(plugins)
-	antiaffinity.Register(plugins)
-	defaulttolerationseconds.Register(plugins)
-	deny.Register(plugins) // DEPRECATED as no real meaning
-	eventratelimit.Register(plugins)
-	exec.Register(plugins)
-	extendedresourcetoleration.Register(plugins)
-	gc.Register(plugins)
-	imagepolicy.Register(plugins)
-	initialresources.Register(plugins)
-	limitranger.Register(plugins)
-	autoprovision.Register(plugins)
-	exists.Register(plugins)
-	noderestriction.Register(plugins)
-	label.Register(plugins) // DEPRECATED in favor of NewPersistentVolumeLabelController in CCM
-	podnodeselector.Register(plugins)
-	podpreset.Register(plugins)
-	podtolerationrestriction.Register(plugins)
-	resourcequota.Register(plugins)
-	podsecuritypolicy.Register(plugins)
-	podpriority.Register(plugins)
-	scdeny.Register(plugins)
 	serviceaccount.Register(plugins)
 	setdefault.Register(plugins)
-	resize.Register(plugins)
-	storageobjectinuseprotection.Register(plugins)
 }
 
 // DefaultOffAdmissionPlugins get admission plugins off by default for kube-apiserver.
 func DefaultOffAdmissionPlugins() sets.String {
 	defaultOnPlugins := sets.NewString(
 		lifecycle.PluginName,                //NamespaceLifecycle
-		limitranger.PluginName,              //LimitRanger
 		serviceaccount.PluginName,           //ServiceAccount
-		label.PluginName,                    //PersistentVolumeLabel
 		setdefault.PluginName,               //DefaultStorageClass
-		defaulttolerationseconds.PluginName, //DefaultTolerationSeconds
-		mutatingwebhook.PluginName,          //MutatingAdmissionWebhook
-		validatingwebhook.PluginName,        //ValidatingAdmissionWebhook
-		resourcequota.PluginName,            //ResourceQuota
 	)
 
 	return sets.NewString(AllOrderedPlugins...).Difference(defaultOnPlugins)

pkg/kubelet/cadvisor/helpers_linux.go

@@ -36,10 +36,6 @@ type imageFsInfoProvider struct {
 // For remote runtimes, it handles additional runtimes natively understood by cAdvisor.
 func (i *imageFsInfoProvider) ImageFsInfoLabel() (string, error) {
 	switch i.runtime {
-	case types.DockerContainerRuntime:
-		return cadvisorfs.LabelDockerImages, nil
-	case types.RktContainerRuntime:
-		return cadvisorfs.LabelRktImages, nil
 	case types.RemoteContainerRuntime:
 		// This is a temporary workaround to get stats for cri-o from cadvisor
 		// and should be removed.

pkg/kubelet/cadvisor/util.go

@@ -17,8 +17,6 @@ limitations under the License.
 package cadvisor
 
 import (
-	goruntime "runtime"
-
 	cadvisorapi "github.com/google/cadvisor/info/v1"
 	cadvisorapi2 "github.com/google/cadvisor/info/v2"
 	"k8s.io/api/core/v1"
@@ -26,7 +24,6 @@ import (
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	v1helper "k8s.io/kubernetes/pkg/apis/core/v1/helper"
 	"k8s.io/kubernetes/pkg/features"
-	kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
 )
 
 const (
@@ -75,7 +72,5 @@ func EphemeralStorageCapacityFromFsInfo(info cadvisorapi2.FsInfo) v1.ResourceLis
 // https://github.com/kubernetes/kubernetes/issues/51798
 // UsingLegacyCadvisorStats returns true if container stats are provided by cadvisor instead of through the CRI
 func UsingLegacyCadvisorStats(runtime, runtimeEndpoint string) bool {
-	return runtime == kubetypes.RktContainerRuntime ||
-		(runtime == kubetypes.DockerContainerRuntime && goruntime.GOOS == "linux") ||
-		runtimeEndpoint == CrioSocket
+	return runtimeEndpoint == CrioSocket
 }

pkg/kubelet/kubelet.go

@@ -23,7 +23,6 @@ import (
 	"math"
 	"net"
 	"net/http"
-	"net/url"
 	"os"
 	"path"
 	"sort"
@@ -65,12 +64,9 @@ import (
 	"k8s.io/kubernetes/pkg/kubelet/config"
 	"k8s.io/kubernetes/pkg/kubelet/configmap"
 	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
-	"k8s.io/kubernetes/pkg/kubelet/dockershim"
-	dockerremote "k8s.io/kubernetes/pkg/kubelet/dockershim/remote"
 	"k8s.io/kubernetes/pkg/kubelet/events"
 	"k8s.io/kubernetes/pkg/kubelet/eviction"
 	"k8s.io/kubernetes/pkg/kubelet/gpu"
-	"k8s.io/kubernetes/pkg/kubelet/gpu/nvidia"
 	"k8s.io/kubernetes/pkg/kubelet/images"
 	"k8s.io/kubernetes/pkg/kubelet/kubeletconfig"
 	"k8s.io/kubernetes/pkg/kubelet/kuberuntime"
@@ -86,11 +82,9 @@ import (
 	"k8s.io/kubernetes/pkg/kubelet/prober"
 	proberesults "k8s.io/kubernetes/pkg/kubelet/prober/results"
 	"k8s.io/kubernetes/pkg/kubelet/remote"
-	"k8s.io/kubernetes/pkg/kubelet/rkt"
 	"k8s.io/kubernetes/pkg/kubelet/secret"
 	"k8s.io/kubernetes/pkg/kubelet/server"
 	serverstats "k8s.io/kubernetes/pkg/kubelet/server/stats"
-	"k8s.io/kubernetes/pkg/kubelet/server/streaming"
 	"k8s.io/kubernetes/pkg/kubelet/stats"
 	"k8s.io/kubernetes/pkg/kubelet/status"
 	"k8s.io/kubernetes/pkg/kubelet/sysctl"
@@ -234,7 +228,6 @@ type Dependencies struct {
 	CAdvisorInterface       cadvisor.Interface
 	Cloud                   cloudprovider.Interface
 	ContainerManager        cm.ContainerManager
-	DockerClientConfig      *dockershim.ClientConfig
 	EventClient             v1core.EventsGetter
 	HeartbeatClient         v1core.CoreV1Interface
 	OnHeartbeatFailure      func()
@@ -583,30 +576,8 @@ func NewMainKubelet(kubeCfg *kubeletconfiginternal.KubeletConfiguration,
 		}
 	}
 
-	// TODO: These need to become arguments to a standalone docker shim.
-	pluginSettings := dockershim.NetworkPluginSettings{
-		HairpinMode:       hairpinMode,
-		NonMasqueradeCIDR: nonMasqueradeCIDR,
-		PluginName:        crOptions.NetworkPluginName,
-		PluginConfDir:     crOptions.CNIConfDir,
-		PluginBinDir:      crOptions.CNIBinDir,
-		MTU:               int(crOptions.NetworkPluginMTU),
-	}
-
 	klet.resourceAnalyzer = serverstats.NewResourceAnalyzer(klet, kubeCfg.VolumeStatsAggPeriod.Duration)
 
-	// Remote runtime shim just cannot talk back to kubelet, so it doesn't
-	// support bandwidth shaping or hostports till #35457. To enable legacy
-	// features, replace with networkHost.
-	var nl *NoOpLegacyHost
-	pluginSettings.LegacyRuntimeHost = nl
-
-	if containerRuntime == kubetypes.RktContainerRuntime {
-		glog.Warningln("rktnetes has been deprecated in favor of rktlet. Please see https://github.com/kubernetes-incubator/rktlet for more information.")
-	}
-
-	// rktnetes cannot be run with CRI.
-	if containerRuntime != kubetypes.RktContainerRuntime {
 		// kubelet defers to the runtime shim to setup networking. Setting
 		// this to nil will prevent it from trying to invoke the plugin.
 		// It's easier to always probe and initialize plugins till cri
@@ -616,38 +587,6 @@ func NewMainKubelet(kubeCfg *kubeletconfiginternal.KubeletConfiguration,
 		var legacyLogProvider kuberuntime.LegacyLogProvider
 
 		switch containerRuntime {
-		case kubetypes.DockerContainerRuntime:
-			// Create and start the CRI shim running as a grpc server.
-			streamingConfig := getStreamingConfig(kubeCfg, kubeDeps)
-			ds, err := dockershim.NewDockerService(kubeDeps.DockerClientConfig, crOptions.PodSandboxImage, streamingConfig,
-				&pluginSettings, runtimeCgroups, kubeCfg.CgroupDriver, crOptions.DockershimRootDirectory,
-				crOptions.DockerDisableSharedPID)
-			if err != nil {
-				return nil, err
-			}
-			// For now, the CRI shim redirects the streaming requests to the
-			// kubelet, which handles the requests using DockerService..
-			klet.criHandler = ds
-
-			// The unix socket for kubelet <-> dockershim communication.
-			glog.V(5).Infof("RemoteRuntimeEndpoint: %q, RemoteImageEndpoint: %q",
-				remoteRuntimeEndpoint,
-				remoteImageEndpoint)
-			glog.V(2).Infof("Starting the GRPC server for the docker CRI shim.")
-			server := dockerremote.NewDockerServer(remoteRuntimeEndpoint, ds)
-			if err := server.Start(); err != nil {
-				return nil, err
-			}
-
-			// Create dockerLegacyService when the logging driver is not supported.
-			supported, err := ds.IsCRISupportedLogDriver()
-			if err != nil {
-				return nil, err
-			}
-			if !supported {
-				klet.dockerLegacyService = ds
-				legacyLogProvider = ds
-			}
 		case kubetypes.RemoteContainerRuntime:
 			// No-op.
 			break
@@ -702,45 +641,6 @@ func NewMainKubelet(kubeCfg *kubeletconfiginternal.KubeletConfiguration,
 				imageService,
 				stats.NewLogMetricsService())
 		}
-	} else {
-		// rkt uses the legacy, non-CRI, integration. Configure it the old way.
-		// TODO: Include hairpin mode settings in rkt?
-		conf := &rkt.Config{
-			Path:            crOptions.RktPath,
-			Stage1Image:     crOptions.RktStage1Image,
-			InsecureOptions: "image,ondisk",
-		}
-		runtime, err := rkt.New(
-			crOptions.RktAPIEndpoint,
-			conf,
-			klet,
-			kubeDeps.Recorder,
-			containerRefManager,
-			klet,
-			klet.livenessManager,
-			httpClient,
-			klet.networkPlugin,
-			hairpinMode == kubeletconfiginternal.HairpinVeth,
-			utilexec.New(),
-			kubecontainer.RealOS{},
-			imageBackOff,
-			kubeCfg.SerializeImagePulls,
-			float32(kubeCfg.RegistryPullQPS),
-			int(kubeCfg.RegistryBurst),
-			kubeCfg.RuntimeRequestTimeout.Duration,
-		)
-		if err != nil {
-			return nil, err
-		}
-		klet.containerRuntime = runtime
-		klet.runner = kubecontainer.DirectStreamingRunner(runtime)
-		klet.StatsProvider = stats.NewCadvisorStatsProvider(
-			klet.cadvisor,
-			klet.resourceAnalyzer,
-			klet.podManager,
-			klet.runtimeCache,
-			klet.containerRuntime)
-	}
 
 	klet.pleg = pleg.NewGenericPLEG(klet.containerRuntime, plegChannelCapacity, plegRelistPeriod, klet.podCache, clock.RealClock{})
 	klet.runtimeState = newRuntimeState(maxWaitForContainerRuntime)
@@ -902,15 +802,8 @@ func NewMainKubelet(kubeCfg *kubeletconfiginternal.KubeletConfiguration,
 	klet.softAdmitHandlers.AddPodAdmitHandler(lifecycle.NewAppArmorAdmitHandler(klet.appArmorValidator))
 	klet.softAdmitHandlers.AddPodAdmitHandler(lifecycle.NewNoNewPrivsAdmitHandler(klet.containerRuntime))
 	if utilfeature.DefaultFeatureGate.Enabled(features.Accelerators) {
-		if containerRuntime == kubetypes.DockerContainerRuntime {
-			glog.Warningln("Accelerators feature is deprecated and will be removed in v1.11. Please use device plugins instead. They can be enabled using the DevicePlugins feature gate.")
-			if klet.gpuManager, err = nvidia.NewNvidiaGPUManager(klet, kubeDeps.DockerClientConfig); err != nil {
-				return nil, err
-			}
-		} else {
 		glog.Errorf("Accelerators feature is supported with docker runtime only. Disabling this feature internally.")
 	}
-	}
 	// Set GPU manager to a stub implementation if it is not enabled or cannot be supported.
 	if klet.gpuManager == nil {
 		klet.gpuManager = gpu.NewGPUManagerStub()
@@ -1193,10 +1086,6 @@ type Kubelet struct {
 	// GPU Manager
 	gpuManager gpu.GPUManager
 
-	// dockerLegacyService contains some legacy methods for backward compatibility.
-	// It should be set only when docker is using non json-file logging driver.
-	dockerLegacyService dockershim.DockerLegacyService
-
 	// StatsProvider provides the node and the container stats.
 	*stats.StatsProvider
 
@@ -2114,9 +2003,6 @@ func (kl *Kubelet) updateRuntimeUp() {
 		glog.Errorf("Container runtime sanity check failed: %v", err)
 		return
 	}
-	// rkt uses the legacy, non-CRI integration. Don't check the runtime
-	// conditions for it.
-	if kl.containerRuntimeName != kubetypes.RktContainerRuntime {
 		if s == nil {
 			glog.Errorf("Container runtime status is nil")
 			return
@@ -2142,7 +2028,6 @@ func (kl *Kubelet) updateRuntimeUp() {
 			glog.Errorf("Container runtime not ready: %v", runtimeReady)
 			return
 		}
-	}
 	kl.oneTimeInitializer.Do(kl.initializeRuntimeDependentModules)
 	kl.runtimeState.setRuntimeSync(kl.clock.Now())
 }
@@ -2212,20 +2097,3 @@ func isSyncPodWorthy(event *pleg.PodLifecycleEvent) bool {
 	return event.Type != pleg.ContainerRemoved
 }
 
-// Gets the streaming server configuration to use with in-process CRI shims.
-func getStreamingConfig(kubeCfg *kubeletconfiginternal.KubeletConfiguration, kubeDeps *Dependencies) *streaming.Config {
-	config := &streaming.Config{
-		// Use a relative redirect (no scheme or host).
-		BaseURL: &url.URL{
-			Path: "/cri/",
-		},
-		StreamIdleTimeout:               kubeCfg.StreamingConnectionIdleTimeout.Duration,
-		StreamCreationTimeout:           streaming.DefaultConfig.StreamCreationTimeout,
-		SupportedRemoteCommandProtocols: streaming.DefaultConfig.SupportedRemoteCommandProtocols,
-		SupportedPortForwardProtocols:   streaming.DefaultConfig.SupportedPortForwardProtocols,
-	}
-	if kubeDeps.TLSOptions != nil {
-		config.TLSConfig = kubeDeps.TLSOptions.Config
-	}
-	return config
-}

pkg/kubelet/kubelet_network.go

@@ -26,7 +26,6 @@ import (
 	"k8s.io/kubernetes/pkg/kubelet/apis/kubeletconfig"
 	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
 	"k8s.io/kubernetes/pkg/kubelet/network"
-	kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
 	utiliptables "k8s.io/kubernetes/pkg/util/iptables"
 )
 
@@ -128,17 +127,8 @@ func effectiveHairpinMode(hairpinMode kubeletconfig.HairpinMode, containerRuntim
 	// - It's set to "none".
 	if hairpinMode == kubeletconfig.PromiscuousBridge || hairpinMode == kubeletconfig.HairpinVeth {
 		// Only on docker.
-		if containerRuntime != kubetypes.DockerContainerRuntime {
 			glog.Warningf("Hairpin mode set to %q but container runtime is %q, ignoring", hairpinMode, containerRuntime)
 			return kubeletconfig.HairpinNone, nil
-		}
-		if hairpinMode == kubeletconfig.PromiscuousBridge && networkPlugin != "kubenet" {
-			// This is not a valid combination, since promiscuous-bridge only works on kubenet. Users might be using the
-			// default values (from before the hairpin-mode flag existed) and we
-			// should keep the old behavior.
-			glog.Warningf("Hairpin mode set to %q but kubenet is not enabled, falling back to %q", hairpinMode, kubeletconfig.HairpinVeth)
-			return kubeletconfig.HairpinVeth, nil
-		}
 	} else if hairpinMode != kubeletconfig.HairpinNone {
 		return "", fmt.Errorf("unknown value: %q", hairpinMode)
 	}

pkg/kubelet/kubelet_pods.go

@@ -1233,12 +1233,6 @@ func (kl *Kubelet) GetKubeletContainerLogs(podFullName, containerName string, lo
 		return err
 	}
 
-	if kl.dockerLegacyService != nil {
-		// dockerLegacyService should only be non-nil when we actually need it, so
-		// inject it into the runtimeService.
-		// TODO(random-liu): Remove this hack after deprecating unsupported log driver.
-		return kl.dockerLegacyService.GetContainerLogs(pod, containerID, logOptions, stdout, stderr)
-	}
 	return kl.containerRuntime.GetContainerLogs(pod, containerID, logOptions, stdout, stderr)
 }
 

pkg/kubelet/lifecycle/handlers.go

@@ -188,36 +188,6 @@ func (a *noNewPrivsAdmitHandler) Admit(attrs *PodAdmitAttributes) PodAdmitResult
 	}
 
 	// Always admit runtimes except docker.
-	if a.Runtime.Type() != kubetypes.DockerContainerRuntime {
-		return PodAdmitResult{Admit: true}
-	}
-
-	// Make sure docker api version is valid.
-	rversion, err := a.Runtime.APIVersion()
-	if err != nil {
-		return PodAdmitResult{
-			Admit:   false,
-			Reason:  "NoNewPrivs",
-			Message: fmt.Sprintf("Cannot enforce NoNewPrivs: %v", err),
-		}
-	}
-	v, err := rversion.Compare("1.23.0")
-	if err != nil {
-		return PodAdmitResult{
-			Admit:   false,
-			Reason:  "NoNewPrivs",
-			Message: fmt.Sprintf("Cannot enforce NoNewPrivs: %v", err),
-		}
-	}
-	// If the version is less than 1.23 it will return -1 above.
-	if v == -1 {
-		return PodAdmitResult{
-			Admit:   false,
-			Reason:  "NoNewPrivs",
-			Message: fmt.Sprintf("Cannot enforce NoNewPrivs: docker runtime API version %q must be greater than or equal to 1.23", rversion.String()),
-		}
-	}
-
 		return PodAdmitResult{Admit: true}
 }
 

pkg/kubelet/types/constants.go

@@ -21,8 +21,6 @@ const (
 	ResolvConfDefault = "/etc/resolv.conf"
 
 	// different container runtimes
-	DockerContainerRuntime = "docker"
-	RktContainerRuntime    = "rkt"
 	RemoteContainerRuntime = "remote"
 
 	// User visible keys for managing node allocatable enforcement on the node.

pkg/security/apparmor/validate.go

@@ -112,7 +112,7 @@ func validateHost(runtime string) error {
 	}
 
 	// Check runtime support. Currently only Docker is supported.
-	if runtime != kubetypes.DockerContainerRuntime && runtime != kubetypes.RemoteContainerRuntime {
+	if runtime != kubetypes.RemoteContainerRuntime {
 		return fmt.Errorf("AppArmor is only enabled for 'docker' and 'remote' runtimes. Found: %q.", runtime)
 	}
 

staging/src/k8s.io/apiserver/pkg/authentication/authenticatorfactory/delegating.go

@@ -26,12 +26,9 @@ import (
 	"k8s.io/apiserver/pkg/authentication/authenticator"
 	"k8s.io/apiserver/pkg/authentication/group"
 	"k8s.io/apiserver/pkg/authentication/request/anonymous"
-	"k8s.io/apiserver/pkg/authentication/request/bearertoken"
 	"k8s.io/apiserver/pkg/authentication/request/headerrequest"
 	unionauth "k8s.io/apiserver/pkg/authentication/request/union"
-	"k8s.io/apiserver/pkg/authentication/request/websocket"
 	"k8s.io/apiserver/pkg/authentication/request/x509"
-	webhooktoken "k8s.io/apiserver/plugin/pkg/authenticator/token/webhook"
 	authenticationclient "k8s.io/client-go/kubernetes/typed/authentication/v1beta1"
 	"k8s.io/client-go/util/cert"
 )
@@ -83,23 +80,6 @@ func (c DelegatingAuthenticatorConfig) New() (authenticator.Request, *spec.Secur
 		authenticators = append(authenticators, x509.New(verifyOpts, x509.CommonNameUserConversion))
 	}
 
-	if c.TokenAccessReviewClient != nil {
-		tokenAuth, err := webhooktoken.NewFromInterface(c.TokenAccessReviewClient, c.CacheTTL)
-		if err != nil {
-			return nil, nil, err
-		}
-		authenticators = append(authenticators, bearertoken.New(tokenAuth), websocket.NewProtocolAuthenticator(tokenAuth))
-
-		securityDefinitions["BearerToken"] = &spec.SecurityScheme{
-			SecuritySchemeProps: spec.SecuritySchemeProps{
-				Type:        "apiKey",
-				Name:        "authorization",
-				In:          "header",
-				Description: "Bearer Token authentication",
-			},
-		}
-	}
-
 	if len(authenticators) == 0 {
 		if c.Anonymous {
 			return anonymous.NewAuthenticator(), &securityDefinitions, nil

staging/src/k8s.io/apiserver/pkg/server/options/admission.go

@@ -29,8 +29,6 @@ import (
 	admissionmetrics "k8s.io/apiserver/pkg/admission/metrics"
 	"k8s.io/apiserver/pkg/admission/plugin/initialization"
 	"k8s.io/apiserver/pkg/admission/plugin/namespace/lifecycle"
-	mutatingwebhook "k8s.io/apiserver/pkg/admission/plugin/webhook/mutating"
-	validatingwebhook "k8s.io/apiserver/pkg/admission/plugin/webhook/validating"
 	apiserverapi "k8s.io/apiserver/pkg/apis/apiserver"
 	apiserverapiv1alpha1 "k8s.io/apiserver/pkg/apis/apiserver/v1alpha1"
 	"k8s.io/apiserver/pkg/server"
@@ -78,7 +76,7 @@ func NewAdmissionOptions() *AdmissionOptions {
 		// admission plugins. The apiserver always runs the validating ones
 		// after all the mutating ones, so their relative order in this list
 		// doesn't matter.
-		RecommendedPluginOrder: []string{lifecycle.PluginName, initialization.PluginName, mutatingwebhook.PluginName, validatingwebhook.PluginName},
+		RecommendedPluginOrder: []string{lifecycle.PluginName, initialization.PluginName},
 		DefaultOffPlugins:      sets.NewString(initialization.PluginName),
 	}
 	server.RegisterAllAdmissionPlugins(options.Plugins)

staging/src/k8s.io/apiserver/pkg/server/options/etcd.go

@@ -18,7 +18,6 @@ package options
 
 import (
 	"fmt"
-	"net/http"
 	"strconv"
 	"strings"
 	"time"
@@ -30,9 +29,7 @@ import (
 	"k8s.io/apiserver/pkg/registry/generic"
 	genericregistry "k8s.io/apiserver/pkg/registry/generic/registry"
 	"k8s.io/apiserver/pkg/server"
-	"k8s.io/apiserver/pkg/server/healthz"
 	serverstorage "k8s.io/apiserver/pkg/server/storage"
-	"k8s.io/apiserver/pkg/storage/etcd3/preflight"
 	"k8s.io/apiserver/pkg/storage/storagebackend"
 )
 
@@ -60,7 +57,6 @@ type EtcdOptions struct {
 
 var storageTypes = sets.NewString(
 	storagebackend.StorageTypeUnset,
-	storagebackend.StorageTypeETCD2,
 	storagebackend.StorageTypeETCD3,
 )
 
@@ -78,20 +74,7 @@ func NewEtcdOptions(backendConfig *storagebackend.Config) *EtcdOptions {
 }
 
 func (s *EtcdOptions) Validate() []error {
-	if s == nil {
 	return nil
-	}
-
-	allErrors := []error{}
-	if len(s.StorageConfig.ServerList) == 0 {
-		allErrors = append(allErrors, fmt.Errorf("--etcd-servers must be specified"))
-	}
-
-	if !storageTypes.Has(s.StorageConfig.Type) {
-		allErrors = append(allErrors, fmt.Errorf("--storage-backend invalid, must be 'etcd3' or 'etcd2'. If not specified, it will default to 'etcd3'"))
-	}
-
-	return allErrors
 }
 
 // AddEtcdFlags adds flags related to etcd storage for a specific APIServer to the specified FlagSet
@@ -167,30 +150,15 @@ func (s *EtcdOptions) ApplyTo(c *server.Config) error {
 		return nil
 	}
 
-	s.addEtcdHealthEndpoint(c)
 	c.RESTOptionsGetter = &SimpleRestOptionsFactory{Options: *s}
 	return nil
 }
 
 func (s *EtcdOptions) ApplyWithStorageFactoryTo(factory serverstorage.StorageFactory, c *server.Config) error {
-	s.addEtcdHealthEndpoint(c)
 	c.RESTOptionsGetter = &storageFactoryRestOptionsFactory{Options: *s, StorageFactory: factory}
 	return nil
 }
 
-func (s *EtcdOptions) addEtcdHealthEndpoint(c *server.Config) {
-	c.HealthzChecks = append(c.HealthzChecks, healthz.NamedCheck("etcd", func(r *http.Request) error {
-		done, err := preflight.EtcdConnection{ServerList: s.StorageConfig.ServerList}.CheckEtcdServers()
-		if !done {
-			return fmt.Errorf("etcd failed")
-		}
-		if err != nil {
-			return err
-		}
-		return nil
-	}))
-}
-
 type SimpleRestOptionsFactory struct {
 	Options EtcdOptions
 }

staging/src/k8s.io/apiserver/pkg/server/options/recommended.go

@@ -31,9 +31,6 @@ import (
 type RecommendedOptions struct {
 	Etcd          *EtcdOptions
 	SecureServing *SecureServingOptionsWithLoopback
-	Authentication *DelegatingAuthenticationOptions
-	Authorization  *DelegatingAuthorizationOptions
-	Audit          *AuditOptions
 	Features      *FeatureOptions
 	CoreAPI       *CoreAPIOptions
 
@@ -55,9 +52,6 @@ func NewRecommendedOptions(prefix string, codec runtime.Codec) *RecommendedOptio
 	return &RecommendedOptions{
 		Etcd:                       NewEtcdOptions(storagebackend.NewDefaultConfig(prefix, codec)),
 		SecureServing:              WithLoopback(sso),
-		Authentication:             NewDelegatingAuthenticationOptions(),
-		Authorization:              NewDelegatingAuthorizationOptions(),
-		Audit:                      NewAuditOptions(),
 		Features:                   NewFeatureOptions(),
 		CoreAPI:                    NewCoreAPIOptions(),
 		ExtraAdmissionInitializers: func(c *server.RecommendedConfig) ([]admission.PluginInitializer, error) { return nil, nil },
@@ -68,9 +62,6 @@ func NewRecommendedOptions(prefix string, codec runtime.Codec) *RecommendedOptio
 func (o *RecommendedOptions) AddFlags(fs *pflag.FlagSet) {
 	o.Etcd.AddFlags(fs)
 	o.SecureServing.AddFlags(fs)
-	o.Authentication.AddFlags(fs)
-	o.Authorization.AddFlags(fs)
-	o.Audit.AddFlags(fs)
 	o.Features.AddFlags(fs)
 	o.CoreAPI.AddFlags(fs)
 	o.Admission.AddFlags(fs)
@@ -86,15 +77,6 @@ func (o *RecommendedOptions) ApplyTo(config *server.RecommendedConfig, scheme *r
 	if err := o.SecureServing.ApplyTo(&config.Config); err != nil {
 		return err
 	}
-	if err := o.Authentication.ApplyTo(&config.Config.Authentication, config.SecureServing, config.OpenAPIConfig); err != nil {
-		return err
-	}
-	if err := o.Authorization.ApplyTo(&config.Config.Authorization); err != nil {
-		return err
-	}
-	if err := o.Audit.ApplyTo(&config.Config); err != nil {
-		return err
-	}
 	if err := o.Features.ApplyTo(&config.Config); err != nil {
 		return err
 	}
@@ -114,9 +96,6 @@ func (o *RecommendedOptions) Validate() []error {
 	errors := []error{}
 	errors = append(errors, o.Etcd.Validate()...)
 	errors = append(errors, o.SecureServing.Validate()...)
-	errors = append(errors, o.Authentication.Validate()...)
-	errors = append(errors, o.Authorization.Validate()...)
-	errors = append(errors, o.Audit.Validate()...)
 	errors = append(errors, o.Features.Validate()...)
 	errors = append(errors, o.CoreAPI.Validate()...)
 	errors = append(errors, o.Admission.Validate()...)

staging/src/k8s.io/apiserver/pkg/server/options/serving.go

@@ -40,6 +40,9 @@ type SecureServingOptions struct {
 	// "tcp4", and "tcp6".
 	BindNetwork string
 	
+	PublicIP *net.IP
+	PublicPort int
+
 	// Listener is the secure server network listener.
 	// either Listener or BindAddress/BindPort/BindNetwork is set,
 	// if Listener is set, use it and omit BindAddress/BindPort/BindNetwork.

staging/src/k8s.io/apiserver/pkg/server/options/serving_with_loopback.go

@@ -75,5 +75,11 @@ func (s *SecureServingOptionsWithLoopback) ApplyTo(c *server.Config) error {
 		c.SecureServing.SNICerts[server.LoopbackClientServerNameOverride] = &tlsCert
 	}
 
+	if s.PublicIP != nil {
+		c.PublicAddress = *s.PublicIP
+	}
+	if s.PublicPort > 0 {
+		c.ReadWritePort = s.PublicPort
+	}
 	return nil
 }

staging/src/k8s.io/apiserver/pkg/server/plugins.go

@@ -21,14 +21,10 @@ import (
 	"k8s.io/apiserver/pkg/admission"
 	"k8s.io/apiserver/pkg/admission/plugin/initialization"
 	"k8s.io/apiserver/pkg/admission/plugin/namespace/lifecycle"
-	mutatingwebhook "k8s.io/apiserver/pkg/admission/plugin/webhook/mutating"
-	validatingwebhook "k8s.io/apiserver/pkg/admission/plugin/webhook/validating"
 )
 
 // RegisterAllAdmissionPlugins registers all admission plugins
 func RegisterAllAdmissionPlugins(plugins *admission.Plugins) {
 	lifecycle.Register(plugins)
 	initialization.Register(plugins)
-	validatingwebhook.Register(plugins)
-	mutatingwebhook.Register(plugins)
 }

staging/src/k8s.io/apiserver/pkg/server/routes/openapi.go

@@ -35,11 +35,7 @@ func (oa OpenAPI) Install(c *restful.Container, mux *mux.PathRecorderMux) {
 	// NOTE: [DEPRECATION] We will announce deprecation for format-separated endpoints for OpenAPI spec,
 	// and switch to a single /openapi/v2 endpoint in Kubernetes 1.10. The design doc and deprecation process
 	// are tracked at: https://docs.google.com/document/d/19lEqE9lc4yHJ3WJAJxS_G7TcORIJXGHyq3wpwcH28nU.
-	_, err := handler.BuildAndRegisterOpenAPIService("/swagger.json", c.RegisteredWebServices(), oa.Config, mux)
-	if err != nil {
-		glog.Fatalf("Failed to register open api spec for root: %v", err)
-	}
-	_, err = handler.BuildAndRegisterOpenAPIVersionedService("/openapi/v2", c.RegisteredWebServices(), oa.Config, mux)
+	_, err := handler.BuildAndRegisterOpenAPIVersionedService("/openapi/v2", c.RegisteredWebServices(), oa.Config, mux)
 	if err != nil {
 		glog.Fatalf("Failed to register versioned open api spec for root: %v", err)
 	}

staging/src/k8s.io/apiserver/pkg/server/storage/storage_codec.go

@@ -25,8 +25,7 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/serializer/recognizer"
 	"k8s.io/apiserver/pkg/storage/storagebackend"
 
-	"github.com/golang/glog"
-)
+	)
 
 // StorageCodecConfig are the arguments passed to newStorageCodecFn
 type StorageCodecConfig struct {
@@ -48,11 +47,6 @@ func NewStorageCodec(opts StorageCodecConfig) (runtime.Codec, error) {
 		return nil, fmt.Errorf("%q is not a valid mime-type", opts.StorageMediaType)
 	}
 
-	if opts.Config.Type == storagebackend.StorageTypeETCD2 && mediaType != "application/json" {
-		glog.Warningf(`storage type %q does not support media type %q, using "application/json"`, storagebackend.StorageTypeETCD2, mediaType)
-		mediaType = "application/json"
-	}
-
 	serializer, ok := runtime.SerializerInfoForMediaType(opts.StorageSerializer.SupportedMediaTypes(), mediaType)
 	if !ok {
 		return nil, fmt.Errorf("unable to find serializer for %q", mediaType)
@@ -60,11 +54,6 @@ func NewStorageCodec(opts StorageCodecConfig) (runtime.Codec, error) {
 
 	s := serializer.Serializer
 
-	// make sure the selected encoder supports string data
-	if !serializer.EncodesAsText && opts.Config.Type == storagebackend.StorageTypeETCD2 {
-		return nil, fmt.Errorf("storage type %q does not support binary media type %q", storagebackend.StorageTypeETCD2, mediaType)
-	}
-
 	// Give callers the opportunity to wrap encoders and decoders.  For decoders, each returned decoder will
 	// be passed to the recognizer so that multiple decoders are available.
 	var encoder runtime.Encoder = s

staging/src/k8s.io/apiserver/pkg/storage/storagebackend/config.go

@@ -25,7 +25,6 @@ import (
 
 const (
 	StorageTypeUnset = ""
-	StorageTypeETCD2 = "etcd2"
 	StorageTypeETCD3 = "etcd3"
 
 	DefaultCompactInterval = 5 * time.Minute

staging/src/k8s.io/apiserver/pkg/storage/storagebackend/factory/factory.go

@@ -29,8 +29,6 @@ type DestroyFunc func()
 // Create creates a storage backend based on given config.
 func Create(c storagebackend.Config) (storage.Interface, DestroyFunc, error) {
 	switch c.Type {
-	case storagebackend.StorageTypeETCD2:
-		return newETCD2Storage(c)
 	case storagebackend.StorageTypeUnset, storagebackend.StorageTypeETCD3:
 		// TODO: We have the following features to implement:
 		// - Support secure connection by using key, cert, and CA files.

staging/src/k8s.io/apiserver/pkg/util/trace/trace.go

@@ -79,8 +79,8 @@ func (t *Trace) logWithStepThreshold(stepThreshold time.Duration) {
 func (t *Trace) LogIfLong(threshold time.Duration) {
 	if time.Since(t.startTime) >= threshold {
 		// if any step took more than it's share of the total allowed time, it deserves a higher log level
-		stepThreshold := threshold / time.Duration(len(t.steps)+1)
-		t.logWithStepThreshold(stepThreshold)
+		//stepThreshold := threshold / time.Duration(len(t.steps)+1)
+		t.logWithStepThreshold(0)
 	}
 }
 

staging/src/k8s.io/client-go/plugin/pkg/client/auth/plugins.go

@@ -21,5 +21,4 @@ import (
 	_ "k8s.io/client-go/plugin/pkg/client/auth/azure"
 	_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
 	_ "k8s.io/client-go/plugin/pkg/client/auth/oidc"
-	_ "k8s.io/client-go/plugin/pkg/client/auth/openstack"
 )