// Returns the master config appropriate for most integration tests.
func NewIntegrationTestMasterConfig() *master.Config {
masterConfig := NewMasterConfig()
masterConfig.EnableCoreControllers = true
masterConfig.GenericConfig.PublicAddress = net.ParseIP("192.168.10.4")
masterConfig.GenericConfig.APIResourceConfigSource = master.DefaultAPIResourceConfigSource()
return masterConfig
}
// Returns a basic master config.
func NewMasterConfig() *master.Config {
etcdClient := NewEtcdClient()
storageVersions := make(map[string]string)
etcdStorage := etcdstorage.NewEtcdStorage(etcdClient, testapi.Default.Codec(), etcdtest.PathPrefix(), false, etcdtest.DeserializationCacheSize)
storageVersions[api.GroupName] = testapi.Default.GroupVersion().String()
autoscalingEtcdStorage := NewAutoscalingEtcdStorage(etcdClient)
storageVersions[autoscaling.GroupName] = testapi.Autoscaling.GroupVersion().String()
batchEtcdStorage := NewBatchEtcdStorage(etcdClient)
storageVersions[batch.GroupName] = testapi.Batch.GroupVersion().String()
expEtcdStorage := NewExtensionsEtcdStorage(etcdClient)
storageVersions[extensions.GroupName] = testapi.Extensions.GroupVersion().String()
storageDestinations := genericapiserver.NewStorageDestinations()
storageDestinations.AddAPIGroup(api.GroupName, etcdStorage)
storageDestinations.AddAPIGroup(autoscaling.GroupName, autoscalingEtcdStorage)
storageDestinations.AddAPIGroup(batch.GroupName, batchEtcdStorage)
storageDestinations.AddAPIGroup(extensions.GroupName, expEtcdStorage)
return &master.Config{
Config: &genericapiserver.Config{
StorageDestinations: storageDestinations,
StorageVersions: storageVersions,
APIResourceConfigSource: master.DefaultAPIResourceConfigSource(),
APIPrefix: "/api",
APIGroupPrefix: "/apis",
Authorizer: apiserver.NewAlwaysAllowAuthorizer(),
AdmissionControl: admit.NewAlwaysAdmit(),
Serializer: api.Codecs,
},
KubeletClient: kubeletclient.FakeKubeletClient{},
}
}
// Returns a basic master config.
func NewMasterConfig() *master.Config {
config := storagebackend.Config{
ServerList: []string{GetEtcdURLFromEnv()},
// This causes the integration tests to exercise the etcd
// prefix code, so please don't change without ensuring
// sufficient coverage in other ways.
Prefix: uuid.New(),
}
negotiatedSerializer := NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON)
storageFactory := genericapiserver.NewDefaultStorageFactory(config, runtime.ContentTypeJSON, negotiatedSerializer, genericapiserver.NewDefaultResourceEncodingConfig(), master.DefaultAPIResourceConfigSource())
storageFactory.SetSerializer(
unversioned.GroupResource{Group: api.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: autoscaling.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Autoscaling.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: batch.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Batch.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: apps.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Apps.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: extensions.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Extensions.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: policy.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Policy.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: rbac.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Rbac.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: certificates.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Certificates.Codec(), runtime.ContentTypeJSON))
return &master.Config{
Config: &genericapiserver.Config{
StorageFactory: storageFactory,
APIResourceConfigSource: master.DefaultAPIResourceConfigSource(),
APIPrefix: "/api",
APIGroupPrefix: "/apis",
Authorizer: apiserver.NewAlwaysAllowAuthorizer(),
AdmissionControl: admit.NewAlwaysAdmit(),
Serializer: api.Codecs,
EnableWatchCache: true,
},
KubeletClient: kubeletclient.FakeKubeletClient{},
}
}
// Returns a basic master config.
func NewMasterConfig() *master.Config {
config := storagebackend.Config{
ServerList: []string{"http://127.0.0.1:4001"},
// TODO: this is a quick hack to work around #27179. It
// conveniently exercises the prefix code, so maybe it's worth
// leaving in.
Prefix: uuid.New(),
}
negotiatedSerializer := NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON)
storageFactory := genericapiserver.NewDefaultStorageFactory(config, runtime.ContentTypeJSON, negotiatedSerializer, genericapiserver.NewDefaultResourceEncodingConfig(), master.DefaultAPIResourceConfigSource())
storageFactory.SetSerializer(
unversioned.GroupResource{Group: api.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: autoscaling.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Autoscaling.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: batch.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Batch.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: apps.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Apps.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: extensions.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Extensions.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: policy.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Policy.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: rbac.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Rbac.Codec(), runtime.ContentTypeJSON))
return &master.Config{
Config: &genericapiserver.Config{
StorageFactory: storageFactory,
APIResourceConfigSource: master.DefaultAPIResourceConfigSource(),
APIPrefix: "/api",
APIGroupPrefix: "/apis",
Authorizer: apiserver.NewAlwaysAllowAuthorizer(),
AdmissionControl: admit.NewAlwaysAdmit(),
Serializer: api.Codecs,
EnableWatchCache: true,
},
KubeletClient: kubeletclient.FakeKubeletClient{},
}
}
// Returns a basic master config.
func NewMasterConfig() *master.Config {
config := storagebackend.Config{
ServerList: []string{"http://127.0.0.1:4001"},
Prefix: etcdtest.PathPrefix(),
}
negotiatedSerializer := NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON)
storageFactory := genericapiserver.NewDefaultStorageFactory(config, runtime.ContentTypeJSON, negotiatedSerializer, genericapiserver.NewDefaultResourceEncodingConfig(), master.DefaultAPIResourceConfigSource())
storageFactory.SetSerializer(
unversioned.GroupResource{Group: api.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: autoscaling.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Autoscaling.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: batch.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Batch.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: apps.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Apps.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: extensions.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Extensions.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: policy.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Policy.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: rbac.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Rbac.Codec(), runtime.ContentTypeJSON))
return &master.Config{
Config: &genericapiserver.Config{
StorageFactory: storageFactory,
APIResourceConfigSource: master.DefaultAPIResourceConfigSource(),
APIPrefix: "/api",
APIGroupPrefix: "/apis",
Authorizer: apiserver.NewAlwaysAllowAuthorizer(),
AdmissionControl: admit.NewAlwaysAdmit(),
Serializer: api.Codecs,
},
KubeletClient: kubeletclient.FakeKubeletClient{},
}
}
// Run runs the specified APIServer. This should never exit.
func Run(s *options.APIServer) error {
genericvalidation.VerifyEtcdServersList(s.ServerRunOptions)
genericapiserver.DefaultAndValidateRunOptions(s.ServerRunOptions)
capabilities.Initialize(capabilities.Capabilities{
AllowPrivileged: s.AllowPrivileged,
// TODO(vmarmol): Implement support for HostNetworkSources.
PrivilegedSources: capabilities.PrivilegedSources{
HostNetworkSources: []string{},
HostPIDSources: []string{},
HostIPCSources: []string{},
},
PerConnectionBandwidthLimitBytesPerSec: s.MaxConnectionBytesPerSec,
})
// Setup tunneler if needed
var tunneler genericapiserver.Tunneler
var proxyDialerFn apiserver.ProxyDialerFunc
if len(s.SSHUser) > 0 {
// Get ssh key distribution func, if supported
var installSSH genericapiserver.InstallSSHKey
cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)
if err != nil {
glog.Fatalf("Cloud provider could not be initialized: %v", err)
}
if cloud != nil {
if instances, supported := cloud.Instances(); supported {
installSSH = instances.AddSSHKeyToAllInstances
}
}
if s.KubeletConfig.Port == 0 {
glog.Fatalf("Must enable kubelet port if proxy ssh-tunneling is specified.")
}
// Set up the tunneler
// TODO(cjcullen): If we want this to handle per-kubelet ports or other
// kubelet listen-addresses, we need to plumb through options.
healthCheckPath := &url.URL{
Scheme: "https",
Host: net.JoinHostPort("127.0.0.1", strconv.FormatUint(uint64(s.KubeletConfig.Port), 10)),
Path: "healthz",
}
tunneler = genericapiserver.NewSSHTunneler(s.SSHUser, s.SSHKeyfile, healthCheckPath, installSSH)
// Use the tunneler's dialer to connect to the kubelet
s.KubeletConfig.Dial = tunneler.Dial
// Use the tunneler's dialer when proxying to pods, services, and nodes
proxyDialerFn = tunneler.Dial
}
// Proxying to pods and services is IP-based... don't expect to be able to verify the hostname
proxyTLSClientConfig := &tls.Config{InsecureSkipVerify: true}
kubeletClient, err := kubeletclient.NewStaticKubeletClient(&s.KubeletConfig)
if err != nil {
glog.Fatalf("Failed to start kubelet client: %v", err)
}
storageGroupsToEncodingVersion, err := s.StorageGroupsToEncodingVersion()
if err != nil {
glog.Fatalf("error generating storage version map: %s", err)
}
storageFactory, err := genericapiserver.BuildDefaultStorageFactory(
s.StorageConfig, s.DefaultStorageMediaType, api.Codecs,
genericapiserver.NewDefaultResourceEncodingConfig(), storageGroupsToEncodingVersion,
// FIXME: this GroupVersionResource override should be configurable
[]unversioned.GroupVersionResource{batch.Resource("scheduledjobs").WithVersion("v2alpha1")},
master.DefaultAPIResourceConfigSource(), s.RuntimeConfig)
if err != nil {
glog.Fatalf("error in initializing storage factory: %s", err)
}
storageFactory.AddCohabitatingResources(batch.Resource("jobs"), extensions.Resource("jobs"))
storageFactory.AddCohabitatingResources(autoscaling.Resource("horizontalpodautoscalers"), extensions.Resource("horizontalpodautoscalers"))
for _, override := range s.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 := unversioned.GroupResource{Group: group, Resource: resource}
servers := strings.Split(tokens[1], ";")
storageFactory.SetEtcdLocation(groupResource, servers)
}
// Default to the private server key for service account token signing
if s.ServiceAccountKeyFile == "" && s.TLSPrivateKeyFile != "" {
if authenticator.IsValidServiceAccountKeyFile(s.TLSPrivateKeyFile) {
s.ServiceAccountKeyFile = s.TLSPrivateKeyFile
} else {
glog.Warning("No RSA key provided, service account token authentication disabled")
}
}
var serviceAccountGetter serviceaccount.ServiceAccountTokenGetter
if s.ServiceAccountLookup {
// If we need to look up service accounts and tokens,
// go directly to etcd to avoid recursive auth insanity
storageConfig, err := storageFactory.NewConfig(api.Resource("serviceaccounts"))
if err != nil {
glog.Fatalf("Unable to get serviceaccounts storage: %v", err)
}
serviceAccountGetter = serviceaccountcontroller.NewGetterFromStorageInterface(storageConfig, storageFactory.ResourcePrefix(api.Resource("serviceaccounts")), storageFactory.ResourcePrefix(api.Resource("secrets")))
}
apiAuthenticator, err := authenticator.New(authenticator.AuthenticatorConfig{
Anonymous: s.AnonymousAuth,
AnyToken: s.EnableAnyToken,
BasicAuthFile: s.BasicAuthFile,
ClientCAFile: s.ClientCAFile,
TokenAuthFile: s.TokenAuthFile,
OIDCIssuerURL: s.OIDCIssuerURL,
OIDCClientID: s.OIDCClientID,
OIDCCAFile: s.OIDCCAFile,
OIDCUsernameClaim: s.OIDCUsernameClaim,
OIDCGroupsClaim: s.OIDCGroupsClaim,
ServiceAccountKeyFile: s.ServiceAccountKeyFile,
ServiceAccountLookup: s.ServiceAccountLookup,
ServiceAccountTokenGetter: serviceAccountGetter,
KeystoneURL: s.KeystoneURL,
WebhookTokenAuthnConfigFile: s.WebhookTokenAuthnConfigFile,
WebhookTokenAuthnCacheTTL: s.WebhookTokenAuthnCacheTTL,
})
if err != nil {
glog.Fatalf("Invalid Authentication Config: %v", err)
}
authorizationModeNames := strings.Split(s.AuthorizationMode, ",")
modeEnabled := func(mode string) bool {
for _, m := range authorizationModeNames {
if m == mode {
return true
}
}
return false
}
authorizationConfig := authorizer.AuthorizationConfig{
PolicyFile: s.AuthorizationPolicyFile,
WebhookConfigFile: s.AuthorizationWebhookConfigFile,
WebhookCacheAuthorizedTTL: s.AuthorizationWebhookCacheAuthorizedTTL,
WebhookCacheUnauthorizedTTL: s.AuthorizationWebhookCacheUnauthorizedTTL,
RBACSuperUser: s.AuthorizationRBACSuperUser,
}
if modeEnabled(genericoptions.ModeRBAC) {
mustGetRESTOptions := func(resource string) generic.RESTOptions {
config, err := storageFactory.NewConfig(rbac.Resource(resource))
if err != nil {
glog.Fatalf("Unable to get %s storage: %v", resource, err)
}
return generic.RESTOptions{StorageConfig: config, Decorator: generic.UndecoratedStorage, ResourcePrefix: storageFactory.ResourcePrefix(rbac.Resource(resource))}
}
// For initial bootstrapping go directly to etcd to avoid privillege escalation check.
authorizationConfig.RBACRoleRegistry = role.NewRegistry(roleetcd.NewREST(mustGetRESTOptions("roles")))
authorizationConfig.RBACRoleBindingRegistry = rolebinding.NewRegistry(rolebindingetcd.NewREST(mustGetRESTOptions("rolebindings")))
authorizationConfig.RBACClusterRoleRegistry = clusterrole.NewRegistry(clusterroleetcd.NewREST(mustGetRESTOptions("clusterroles")))
authorizationConfig.RBACClusterRoleBindingRegistry = clusterrolebinding.NewRegistry(clusterrolebindingetcd.NewREST(mustGetRESTOptions("clusterrolebindings")))
}
apiAuthorizer, err := authorizer.NewAuthorizerFromAuthorizationConfig(authorizationModeNames, authorizationConfig)
if err != nil {
glog.Fatalf("Invalid Authorization Config: %v", err)
}
admissionControlPluginNames := strings.Split(s.AdmissionControl, ",")
privilegedLoopbackToken := uuid.NewRandom().String()
client, err := s.NewSelfClient(privilegedLoopbackToken)
if err != nil {
glog.Errorf("Failed to create clientset: %v", err)
}
// TODO(dims): We probably need to add an option "EnableLoopbackToken"
if apiAuthenticator != nil {
var uid = uuid.NewRandom().String()
tokens := make(map[string]*user.DefaultInfo)
tokens[privilegedLoopbackToken] = &user.DefaultInfo{
Name: "system:apiserver",
UID: uid,
Groups: []string{"system:masters"},
}
tokenAuthenticator := authenticator.NewAuthenticatorFromTokens(tokens)
apiAuthenticator = authenticatorunion.New(tokenAuthenticator, apiAuthenticator)
tokenAuthorizer := authorizer.NewPrivilegedGroups("system:masters")
apiAuthorizer = authorizerunion.New(tokenAuthorizer, apiAuthorizer)
}
sharedInformers := informers.NewSharedInformerFactory(client, 10*time.Minute)
pluginInitializer := admission.NewPluginInitializer(sharedInformers)
admissionController, err := admission.NewFromPlugins(client, admissionControlPluginNames, s.AdmissionControlConfigFile, pluginInitializer)
if err != nil {
glog.Fatalf("Failed to initialize plugins: %v", err)
}
genericConfig := genericapiserver.NewConfig(s.ServerRunOptions)
// TODO: Move the following to generic api server as well.
genericConfig.Authenticator = apiAuthenticator
genericConfig.SupportsBasicAuth = len(s.BasicAuthFile) > 0
genericConfig.Authorizer = apiAuthorizer
genericConfig.AuthorizerRBACSuperUser = s.AuthorizationRBACSuperUser
genericConfig.AdmissionControl = admissionController
genericConfig.APIResourceConfigSource = storageFactory.APIResourceConfigSource
genericConfig.MasterServiceNamespace = s.MasterServiceNamespace
genericConfig.ProxyDialer = proxyDialerFn
genericConfig.ProxyTLSClientConfig = proxyTLSClientConfig
genericConfig.Serializer = api.Codecs
genericConfig.OpenAPIInfo.Title = "Kubernetes"
genericConfig.OpenAPIDefinitions = openapi.OpenAPIDefinitions
genericConfig.EnableOpenAPISupport = true
config := &master.Config{
GenericConfig: genericConfig,
StorageFactory: storageFactory,
EnableWatchCache: s.EnableWatchCache,
EnableCoreControllers: true,
DeleteCollectionWorkers: s.DeleteCollectionWorkers,
EventTTL: s.EventTTL,
KubeletClient: kubeletClient,
EnableUISupport: true,
EnableLogsSupport: true,
Tunneler: tunneler,
}
if s.EnableWatchCache {
glog.V(2).Infof("Initalizing cache sizes based on %dMB limit", s.TargetRAMMB)
cachesize.InitializeWatchCacheSizes(s.TargetRAMMB)
cachesize.SetWatchCacheSizes(s.WatchCacheSizes)
}
m, err := config.Complete().New()
if err != nil {
return err
}
sharedInformers.Start(wait.NeverStop)
m.Run(s.ServerRunOptions)
return nil
}
func TestParseRuntimeConfig(t *testing.T) {
testCases := []struct {
runtimeConfig map[string]string
expectedAPIConfig func() *genericapiserver.ResourceConfig
err bool
}{
{
runtimeConfig: map[string]string{},
expectedAPIConfig: func() *genericapiserver.ResourceConfig {
return master.DefaultAPIResourceConfigSource()
},
err: false,
},
{
// Cannot override v1 resources.
runtimeConfig: map[string]string{
"api/v1/pods": "false",
},
expectedAPIConfig: func() *genericapiserver.ResourceConfig {
return master.DefaultAPIResourceConfigSource()
},
err: true,
},
{
// Disable v1.
runtimeConfig: map[string]string{
"api/v1": "false",
},
expectedAPIConfig: func() *genericapiserver.ResourceConfig {
config := master.DefaultAPIResourceConfigSource()
config.DisableVersions(unversioned.GroupVersion{Group: "", Version: "v1"})
return config
},
err: false,
},
{
// Disable extensions.
runtimeConfig: map[string]string{
"extensions/v1beta1": "false",
},
expectedAPIConfig: func() *genericapiserver.ResourceConfig {
config := master.DefaultAPIResourceConfigSource()
config.DisableVersions(unversioned.GroupVersion{Group: "extensions", Version: "v1beta1"})
return config
},
err: false,
},
{
// Disable deployments.
runtimeConfig: map[string]string{
"extensions/v1beta1/deployments": "false",
},
expectedAPIConfig: func() *genericapiserver.ResourceConfig {
config := master.DefaultAPIResourceConfigSource()
config.DisableResources(unversioned.GroupVersionResource{Group: "extensions", Version: "v1beta1", Resource: "deployments"})
return config
},
err: false,
},
{
// Enable deployments and disable jobs.
runtimeConfig: map[string]string{
"extensions/v1beta1/anything": "true",
"extensions/v1beta1/jobs": "false",
},
expectedAPIConfig: func() *genericapiserver.ResourceConfig {
config := master.DefaultAPIResourceConfigSource()
config.DisableResources(unversioned.GroupVersionResource{Group: "extensions", Version: "v1beta1", Resource: "jobs"})
config.EnableResources(unversioned.GroupVersionResource{Group: "extensions", Version: "v1beta1", Resource: "anything"})
return config
},
err: false,
},
}
for _, test := range testCases {
s := &options.APIServer{
RuntimeConfig: test.runtimeConfig,
}
actualDisablers, err := parseRuntimeConfig(s)
if err == nil && test.err {
t.Fatalf("expected error for test: %v", test)
} else if err != nil && !test.err {
t.Fatalf("unexpected error: %s, for test: %v", err, test)
}
expectedConfig := test.expectedAPIConfig()
if err == nil && !reflect.DeepEqual(actualDisablers, expectedConfig) {
t.Fatalf("%v: unexpected apiResourceDisablers. Actual: %v\n expected: %v", test.runtimeConfig, actualDisablers, expectedConfig)
}
}
}
// Parses the given runtime-config and formats it into genericapiserver.APIResourceConfigSource
func parseRuntimeConfig(s *options.APIServer) (genericapiserver.APIResourceConfigSource, error) {
v1GroupVersionString := "api/v1"
extensionsGroupVersionString := extensionsapiv1beta1.SchemeGroupVersion.String()
versionToResourceSpecifier := map[unversioned.GroupVersion]string{
apiv1.SchemeGroupVersion: v1GroupVersionString,
extensionsapiv1beta1.SchemeGroupVersion: extensionsGroupVersionString,
batchapiv1.SchemeGroupVersion: batchapiv1.SchemeGroupVersion.String(),
autoscalingapiv1.SchemeGroupVersion: autoscalingapiv1.SchemeGroupVersion.String(),
}
resourceConfig := master.DefaultAPIResourceConfigSource()
// "api/all=false" allows users to selectively enable specific api versions.
enableAPIByDefault := true
allAPIFlagValue, ok := s.RuntimeConfig["api/all"]
if ok && allAPIFlagValue == "false" {
enableAPIByDefault = false
}
// "api/legacy=false" allows users to disable legacy api versions.
disableLegacyAPIs := false
legacyAPIFlagValue, ok := s.RuntimeConfig["api/legacy"]
if ok && legacyAPIFlagValue == "false" {
disableLegacyAPIs = true
}
_ = disableLegacyAPIs // hush the compiler while we don't have legacy APIs to disable.
// "<resourceSpecifier>={true|false} allows users to enable/disable API.
// This takes preference over api/all and api/legacy, if specified.
for version, resourceSpecifier := range versionToResourceSpecifier {
enableVersion := getRuntimeConfigValue(s, resourceSpecifier, enableAPIByDefault)
if enableVersion {
resourceConfig.EnableVersions(version)
} else {
resourceConfig.DisableVersions(version)
}
}
for key := range s.RuntimeConfig {
tokens := strings.Split(key, "/")
if len(tokens) != 3 {
continue
}
switch {
case strings.HasPrefix(key, extensionsGroupVersionString+"/"):
if !resourceConfig.AnyResourcesForVersionEnabled(extensionsapiv1beta1.SchemeGroupVersion) {
return nil, fmt.Errorf("%v is disabled, you cannot configure its resources individually", extensionsapiv1beta1.SchemeGroupVersion)
}
resource := strings.TrimPrefix(key, extensionsGroupVersionString+"/")
if getRuntimeConfigValue(s, key, false) {
resourceConfig.EnableResources(extensionsapiv1beta1.SchemeGroupVersion.WithResource(resource))
} else {
resourceConfig.DisableResources(extensionsapiv1beta1.SchemeGroupVersion.WithResource(resource))
}
default:
// TODO enable individual resource capability for all GroupVersionResources
return nil, fmt.Errorf("%v resources cannot be enabled/disabled individually", key)
}
}
return resourceConfig, nil
}
// Returns a basic master config.
func NewMasterConfig() *master.Config {
config := storagebackend.Config{
ServerList: []string{GetEtcdURLFromEnv()},
// This causes the integration tests to exercise the etcd
// prefix code, so please don't change without ensuring
// sufficient coverage in other ways.
Prefix: uuid.New(),
}
info, _ := runtime.SerializerInfoForMediaType(api.Codecs.SupportedMediaTypes(), runtime.ContentTypeJSON)
ns := NewSingleContentTypeSerializer(api.Scheme, info)
storageFactory := genericapiserver.NewDefaultStorageFactory(config, runtime.ContentTypeJSON, ns, genericapiserver.NewDefaultResourceEncodingConfig(), master.DefaultAPIResourceConfigSource())
storageFactory.SetSerializer(
unversioned.GroupResource{Group: api.GroupName, Resource: genericapiserver.AllResources},
"",
ns)
storageFactory.SetSerializer(
unversioned.GroupResource{Group: autoscaling.GroupName, Resource: genericapiserver.AllResources},
"",
ns)
storageFactory.SetSerializer(
unversioned.GroupResource{Group: batch.GroupName, Resource: genericapiserver.AllResources},
"",
ns)
storageFactory.SetSerializer(
unversioned.GroupResource{Group: apps.GroupName, Resource: genericapiserver.AllResources},
"",
ns)
storageFactory.SetSerializer(
unversioned.GroupResource{Group: extensions.GroupName, Resource: genericapiserver.AllResources},
"",
ns)
storageFactory.SetSerializer(
unversioned.GroupResource{Group: policy.GroupName, Resource: genericapiserver.AllResources},
"",
ns)
storageFactory.SetSerializer(
unversioned.GroupResource{Group: rbac.GroupName, Resource: genericapiserver.AllResources},
"",
ns)
storageFactory.SetSerializer(
unversioned.GroupResource{Group: certificates.GroupName, Resource: genericapiserver.AllResources},
"",
ns)
storageFactory.SetSerializer(
unversioned.GroupResource{Group: storage.GroupName, Resource: genericapiserver.AllResources},
"",
ns)
genericConfig := genericapiserver.NewConfig()
kubeVersion := version.Get()
genericConfig.Version = &kubeVersion
genericConfig.APIResourceConfigSource = master.DefaultAPIResourceConfigSource()
genericConfig.Authorizer = authorizer.NewAlwaysAllowAuthorizer()
genericConfig.AdmissionControl = admit.NewAlwaysAdmit()
genericConfig.EnableMetrics = true
return &master.Config{
GenericConfig: genericConfig,
StorageFactory: storageFactory,
EnableCoreControllers: true,
EnableWatchCache: true,
KubeletClientConfig: kubeletclient.KubeletClientConfig{Port: 10250},
APIServerServicePort: 443,
MasterCount: 1,
}
}
// Returns a basic master config.
func NewMasterConfig() *master.Config {
config := storagebackend.Config{
ServerList: []string{GetEtcdURLFromEnv()},
// This causes the integration tests to exercise the etcd
// prefix code, so please don't change without ensuring
// sufficient coverage in other ways.
Prefix: uuid.New(),
}
negotiatedSerializer := NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON)
storageFactory := genericapiserver.NewDefaultStorageFactory(config, runtime.ContentTypeJSON, negotiatedSerializer, genericapiserver.NewDefaultResourceEncodingConfig(), master.DefaultAPIResourceConfigSource())
storageFactory.SetSerializer(
unversioned.GroupResource{Group: api.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: autoscaling.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Autoscaling.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: batch.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Batch.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: apps.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Apps.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: extensions.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Extensions.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: policy.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Policy.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: rbac.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Rbac.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: certificates.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Certificates.Codec(), runtime.ContentTypeJSON))
storageFactory.SetSerializer(
unversioned.GroupResource{Group: storage.GroupName, Resource: genericapiserver.AllResources},
"",
NewSingleContentTypeSerializer(api.Scheme, testapi.Storage.Codec(), runtime.ContentTypeJSON))
return &master.Config{
GenericConfig: &genericapiserver.Config{
APIResourceConfigSource: master.DefaultAPIResourceConfigSource(),
APIPrefix: "/api",
APIGroupPrefix: "/apis",
Authorizer: authorizer.NewAlwaysAllowAuthorizer(),
AdmissionControl: admit.NewAlwaysAdmit(),
Serializer: api.Codecs,
// Set those values to avoid annoying warnings in logs.
ServiceClusterIPRange: parseCIDROrDie("10.0.0.0/24"),
ServiceNodePortRange: utilnet.PortRange{Base: 30000, Size: 2768},
EnableVersion: true,
OpenAPIDefinitions: openapi.OpenAPIDefinitions,
EnableOpenAPISupport: true,
},
StorageFactory: storageFactory,
EnableWatchCache: true,
KubeletClient: kubeletclient.FakeKubeletClient{},
}
}
// Run runs the specified APIServer. This should never exit.
func Run(s *options.ServerRunOptions) error {
// set defaults
if err := s.GenericServerRunOptions.DefaultAdvertiseAddress(s.SecureServing, s.InsecureServing); err != nil {
return err
}
serviceIPRange, apiServerServiceIP, err := master.DefaultServiceIPRange(s.ServiceClusterIPRange)
if err != nil {
return fmt.Errorf("error determining service IP ranges: %v", err)
}
if err := s.SecureServing.MaybeDefaultWithSelfSignedCerts(s.GenericServerRunOptions.AdvertiseAddress.String(), apiServerServiceIP); 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)
}
// create config from options
genericConfig := genericapiserver.NewConfig().
ApplyOptions(s.GenericServerRunOptions).
ApplyInsecureServingOptions(s.InsecureServing)
if _, err := genericConfig.ApplySecureServingOptions(s.SecureServing); err != nil {
return fmt.Errorf("failed to configure https: %s", err)
}
if err = s.Authentication.Apply(genericConfig); err != nil {
return fmt.Errorf("failed to configure authentication: %s", err)
}
capabilities.Initialize(capabilities.Capabilities{
AllowPrivileged: s.AllowPrivileged,
// TODO(vmarmol): Implement support for HostNetworkSources.
PrivilegedSources: capabilities.PrivilegedSources{
HostNetworkSources: []string{},
HostPIDSources: []string{},
HostIPCSources: []string{},
},
PerConnectionBandwidthLimitBytesPerSec: s.MaxConnectionBytesPerSec,
})
// Setup nodeTunneler if needed
var nodeTunneler tunneler.Tunneler
var proxyDialerFn utilnet.DialFunc
if len(s.SSHUser) > 0 {
// Get ssh key distribution func, if supported
var installSSHKey tunneler.InstallSSHKey
cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider.CloudProvider, s.CloudProvider.CloudConfigFile)
if err != nil {
return fmt.Errorf("cloud provider could not be initialized: %v", err)
}
if cloud != nil {
if instances, supported := cloud.Instances(); supported {
installSSHKey = instances.AddSSHKeyToAllInstances
}
}
if s.KubeletConfig.Port == 0 {
return fmt.Errorf("must enable kubelet port if proxy ssh-tunneling is specified")
}
if s.KubeletConfig.ReadOnlyPort == 0 {
return fmt.Errorf("must enable kubelet readonly port if proxy ssh-tunneling is specified")
}
// Set up the nodeTunneler
// TODO(cjcullen): If we want this to handle per-kubelet ports or other
// kubelet listen-addresses, we need to plumb through options.
healthCheckPath := &url.URL{
Scheme: "http",
Host: net.JoinHostPort("127.0.0.1", strconv.FormatUint(uint64(s.KubeletConfig.ReadOnlyPort), 10)),
Path: "healthz",
}
nodeTunneler = tunneler.New(s.SSHUser, s.SSHKeyfile, healthCheckPath, installSSHKey)
// Use the nodeTunneler's dialer to connect to the kubelet
s.KubeletConfig.Dial = nodeTunneler.Dial
// Use the nodeTunneler's dialer when proxying to pods, services, and nodes
proxyDialerFn = nodeTunneler.Dial
}
// Proxying to pods and services is IP-based... don't expect to be able to verify the hostname
proxyTLSClientConfig := &tls.Config{InsecureSkipVerify: true}
if s.Etcd.StorageConfig.DeserializationCacheSize == 0 {
// When size of cache is not explicitly set, estimate its size based on
// target memory usage.
glog.V(2).Infof("Initializing deserialization cache size based on %dMB limit", s.GenericServerRunOptions.TargetRAMMB)
// This is the heuristics that from memory capacity is trying to infer
// the maximum number of nodes in the cluster and set cache sizes based
// on that value.
// From our documentation, we officially recomment 120GB machines for
// 2000 nodes, and we scale from that point. Thus we assume ~60MB of
// capacity per node.
// TODO: We may consider deciding that some percentage of memory will
// be used for the deserialization cache and divide it by the max object
// size to compute its size. We may even go further and measure
// collective sizes of the objects in the cache.
clusterSize := s.GenericServerRunOptions.TargetRAMMB / 60
s.Etcd.StorageConfig.DeserializationCacheSize = 25 * clusterSize
if s.Etcd.StorageConfig.DeserializationCacheSize < 1000 {
s.Etcd.StorageConfig.DeserializationCacheSize = 1000
}
}
storageGroupsToEncodingVersion, err := s.GenericServerRunOptions.StorageGroupsToEncodingVersion()
if err != nil {
return fmt.Errorf("error generating storage version map: %s", err)
}
storageFactory, err := kubeapiserver.BuildDefaultStorageFactory(
s.Etcd.StorageConfig, s.GenericServerRunOptions.DefaultStorageMediaType, api.Codecs,
genericapiserver.NewDefaultResourceEncodingConfig(), storageGroupsToEncodingVersion,
// FIXME: this GroupVersionResource override should be configurable
[]schema.GroupVersionResource{batch.Resource("cronjobs").WithVersion("v2alpha1")},
master.DefaultAPIResourceConfigSource(), s.GenericServerRunOptions.RuntimeConfig)
if err != nil {
return fmt.Errorf("error in initializing storage factory: %s", err)
}
storageFactory.AddCohabitatingResources(autoscaling.Resource("horizontalpodautoscalers"), extensions.Resource("horizontalpodautoscalers"))
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)
}
// Default to the private server key for service account token signing
if len(s.Authentication.ServiceAccounts.KeyFiles) == 0 && s.SecureServing.ServerCert.CertKey.KeyFile != "" {
if kubeauthenticator.IsValidServiceAccountKeyFile(s.SecureServing.ServerCert.CertKey.KeyFile) {
s.Authentication.ServiceAccounts.KeyFiles = []string{s.SecureServing.ServerCert.CertKey.KeyFile}
} else {
glog.Warning("No TLS key provided, service account token authentication disabled")
}
}
authenticatorConfig := s.Authentication.ToAuthenticationConfig()
if s.Authentication.ServiceAccounts.Lookup {
// If we need to look up service accounts and tokens,
// go directly to etcd to avoid recursive auth insanity
storageConfig, err := storageFactory.NewConfig(api.Resource("serviceaccounts"))
if err != nil {
return fmt.Errorf("unable to get serviceaccounts storage: %v", err)
}
authenticatorConfig.ServiceAccountTokenGetter = serviceaccountcontroller.NewGetterFromStorageInterface(storageConfig, storageFactory.ResourcePrefix(api.Resource("serviceaccounts")), storageFactory.ResourcePrefix(api.Resource("secrets")))
}
apiAuthenticator, securityDefinitions, err := authenticatorConfig.New()
if err != nil {
return fmt.Errorf("invalid Authentication Config: %v", err)
}
privilegedLoopbackToken := uuid.NewRandom().String()
selfClientConfig, err := genericapiserver.NewSelfClientConfig(genericConfig.SecureServingInfo, genericConfig.InsecureServingInfo, privilegedLoopbackToken)
if err != nil {
return fmt.Errorf("failed to create clientset: %v", err)
}
client, err := internalclientset.NewForConfig(selfClientConfig)
if err != nil {
kubeAPIVersions := os.Getenv("KUBE_API_VERSIONS")
if len(kubeAPIVersions) == 0 {
return fmt.Errorf("failed to create clientset: %v", err)
}
// KUBE_API_VERSIONS is used in test-update-storage-objects.sh, disabling a number of API
// groups. This leads to a nil client above and undefined behaviour further down.
// TODO: get rid of KUBE_API_VERSIONS or define sane behaviour if set
glog.Errorf("Failed to create clientset with KUBE_API_VERSIONS=%q. KUBE_API_VERSIONS is only for testing. Things will break.", kubeAPIVersions)
}
sharedInformers := informers.NewSharedInformerFactory(nil, client, 10*time.Minute)
authorizationConfig := s.Authorization.ToAuthorizationConfig(sharedInformers)
apiAuthorizer, err := authorizationConfig.New()
if err != nil {
return fmt.Errorf("invalid Authorization Config: %v", err)
}
admissionControlPluginNames := strings.Split(s.GenericServerRunOptions.AdmissionControl, ",")
pluginInitializer := kubeadmission.NewPluginInitializer(client, sharedInformers, apiAuthorizer)
admissionConfigProvider, err := kubeadmission.ReadAdmissionConfiguration(admissionControlPluginNames, s.GenericServerRunOptions.AdmissionControlConfigFile)
if err != nil {
return fmt.Errorf("failed to read plugin config: %v", err)
}
admissionController, err := admission.NewFromPlugins(admissionControlPluginNames, admissionConfigProvider, pluginInitializer)
if err != nil {
return fmt.Errorf("failed to initialize plugins: %v", err)
}
proxyTransport := utilnet.SetTransportDefaults(&http.Transport{
Dial: proxyDialerFn,
TLSClientConfig: proxyTLSClientConfig,
})
kubeVersion := version.Get()
genericConfig.Version = &kubeVersion
genericConfig.LoopbackClientConfig = selfClientConfig
genericConfig.Authenticator = apiAuthenticator
genericConfig.Authorizer = apiAuthorizer
genericConfig.AdmissionControl = admissionController
genericConfig.OpenAPIConfig = genericapiserver.DefaultOpenAPIConfig(generatedopenapi.OpenAPIDefinitions)
genericConfig.OpenAPIConfig.SecurityDefinitions = securityDefinitions
genericConfig.OpenAPIConfig.Info.Title = "Kubernetes"
genericConfig.SwaggerConfig = genericapiserver.DefaultSwaggerConfig()
genericConfig.EnableMetrics = true
genericConfig.LongRunningFunc = filters.BasicLongRunningRequestCheck(
sets.NewString("watch", "proxy"),
sets.NewString("attach", "exec", "proxy", "log", "portforward"),
)
config := &master.Config{
GenericConfig: genericConfig,
APIResourceConfigSource: storageFactory.APIResourceConfigSource,
StorageFactory: storageFactory,
EnableWatchCache: s.GenericServerRunOptions.EnableWatchCache,
EnableCoreControllers: true,
DeleteCollectionWorkers: s.GenericServerRunOptions.DeleteCollectionWorkers,
EventTTL: s.EventTTL,
KubeletClientConfig: s.KubeletConfig,
EnableUISupport: true,
EnableLogsSupport: true,
ProxyTransport: proxyTransport,
Tunneler: nodeTunneler,
ServiceIPRange: serviceIPRange,
APIServerServiceIP: apiServerServiceIP,
APIServerServicePort: 443,
ServiceNodePortRange: s.ServiceNodePortRange,
KubernetesServiceNodePort: s.KubernetesServiceNodePort,
MasterCount: s.MasterCount,
}
if s.GenericServerRunOptions.EnableWatchCache {
glog.V(2).Infof("Initializing cache sizes based on %dMB limit", s.GenericServerRunOptions.TargetRAMMB)
cachesize.InitializeWatchCacheSizes(s.GenericServerRunOptions.TargetRAMMB)
cachesize.SetWatchCacheSizes(s.GenericServerRunOptions.WatchCacheSizes)
}
m, err := config.Complete().New()
if err != nil {
return err
}
sharedInformers.Start(wait.NeverStop)
m.GenericAPIServer.PrepareRun().Run(wait.NeverStop)
return nil
}
// Run runs the specified APIServer. This should never exit.
func Run(s *options.ServerRunOptions) error {
genericvalidation.VerifyEtcdServersList(s.GenericServerRunOptions)
genericapiserver.DefaultAndValidateRunOptions(s.GenericServerRunOptions)
genericConfig := genericapiserver.NewConfig(). // create the new config
ApplyOptions(s.GenericServerRunOptions). // apply the options selected
Complete() // set default values based on the known values
serviceIPRange, apiServerServiceIP, err := genericapiserver.DefaultServiceIPRange(s.GenericServerRunOptions.ServiceClusterIPRange)
if err != nil {
glog.Fatalf("Error determining service IP ranges: %v", err)
}
if err := genericConfig.MaybeGenerateServingCerts(apiServerServiceIP); err != nil {
glog.Fatalf("Failed to generate service certificate: %v", err)
}
capabilities.Initialize(capabilities.Capabilities{
AllowPrivileged: s.AllowPrivileged,
// TODO(vmarmol): Implement support for HostNetworkSources.
PrivilegedSources: capabilities.PrivilegedSources{
HostNetworkSources: []string{},
HostPIDSources: []string{},
HostIPCSources: []string{},
},
PerConnectionBandwidthLimitBytesPerSec: s.MaxConnectionBytesPerSec,
})
// Setup tunneler if needed
var tunneler genericapiserver.Tunneler
var proxyDialerFn apiserver.ProxyDialerFunc
if len(s.SSHUser) > 0 {
// Get ssh key distribution func, if supported
var installSSH genericapiserver.InstallSSHKey
cloud, err := cloudprovider.InitCloudProvider(s.GenericServerRunOptions.CloudProvider, s.GenericServerRunOptions.CloudConfigFile)
if err != nil {
glog.Fatalf("Cloud provider could not be initialized: %v", err)
}
if cloud != nil {
if instances, supported := cloud.Instances(); supported {
installSSH = instances.AddSSHKeyToAllInstances
}
}
if s.KubeletConfig.Port == 0 {
glog.Fatalf("Must enable kubelet port if proxy ssh-tunneling is specified.")
}
// Set up the tunneler
// TODO(cjcullen): If we want this to handle per-kubelet ports or other
// kubelet listen-addresses, we need to plumb through options.
healthCheckPath := &url.URL{
Scheme: "https",
Host: net.JoinHostPort("127.0.0.1", strconv.FormatUint(uint64(s.KubeletConfig.Port), 10)),
Path: "healthz",
}
tunneler = genericapiserver.NewSSHTunneler(s.SSHUser, s.SSHKeyfile, healthCheckPath, installSSH)
// Use the tunneler's dialer to connect to the kubelet
s.KubeletConfig.Dial = tunneler.Dial
// Use the tunneler's dialer when proxying to pods, services, and nodes
proxyDialerFn = tunneler.Dial
}
// Proxying to pods and services is IP-based... don't expect to be able to verify the hostname
proxyTLSClientConfig := &tls.Config{InsecureSkipVerify: true}
if s.GenericServerRunOptions.StorageConfig.DeserializationCacheSize == 0 {
// When size of cache is not explicitly set, estimate its size based on
// target memory usage.
glog.V(2).Infof("Initalizing deserialization cache size based on %dMB limit", s.GenericServerRunOptions.TargetRAMMB)
// This is the heuristics that from memory capacity is trying to infer
// the maximum number of nodes in the cluster and set cache sizes based
// on that value.
// From our documentation, we officially recomment 120GB machines for
// 2000 nodes, and we scale from that point. Thus we assume ~60MB of
// capacity per node.
// TODO: We may consider deciding that some percentage of memory will
// be used for the deserialization cache and divide it by the max object
// size to compute its size. We may even go further and measure
// collective sizes of the objects in the cache.
clusterSize := s.GenericServerRunOptions.TargetRAMMB / 60
s.GenericServerRunOptions.StorageConfig.DeserializationCacheSize = 25 * clusterSize
if s.GenericServerRunOptions.StorageConfig.DeserializationCacheSize < 1000 {
s.GenericServerRunOptions.StorageConfig.DeserializationCacheSize = 1000
}
}
storageGroupsToEncodingVersion, err := s.GenericServerRunOptions.StorageGroupsToEncodingVersion()
if err != nil {
glog.Fatalf("error generating storage version map: %s", err)
}
storageFactory, err := genericapiserver.BuildDefaultStorageFactory(
s.GenericServerRunOptions.StorageConfig, s.GenericServerRunOptions.DefaultStorageMediaType, api.Codecs,
genericapiserver.NewDefaultResourceEncodingConfig(), storageGroupsToEncodingVersion,
// FIXME: this GroupVersionResource override should be configurable
[]schema.GroupVersionResource{batch.Resource("cronjobs").WithVersion("v2alpha1")},
master.DefaultAPIResourceConfigSource(), s.GenericServerRunOptions.RuntimeConfig)
if err != nil {
glog.Fatalf("error in initializing storage factory: %s", err)
}
storageFactory.AddCohabitatingResources(batch.Resource("jobs"), extensions.Resource("jobs"))
storageFactory.AddCohabitatingResources(autoscaling.Resource("horizontalpodautoscalers"), extensions.Resource("horizontalpodautoscalers"))
for _, override := range s.GenericServerRunOptions.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)
}
// Default to the private server key for service account token signing
if len(s.ServiceAccountKeyFiles) == 0 && s.GenericServerRunOptions.TLSPrivateKeyFile != "" {
if authenticator.IsValidServiceAccountKeyFile(s.GenericServerRunOptions.TLSPrivateKeyFile) {
s.ServiceAccountKeyFiles = []string{s.GenericServerRunOptions.TLSPrivateKeyFile}
} else {
glog.Warning("No TLS key provided, service account token authentication disabled")
}
}
var serviceAccountGetter serviceaccount.ServiceAccountTokenGetter
if s.ServiceAccountLookup {
// If we need to look up service accounts and tokens,
// go directly to etcd to avoid recursive auth insanity
storageConfig, err := storageFactory.NewConfig(api.Resource("serviceaccounts"))
if err != nil {
glog.Fatalf("Unable to get serviceaccounts storage: %v", err)
}
serviceAccountGetter = serviceaccountcontroller.NewGetterFromStorageInterface(storageConfig, storageFactory.ResourcePrefix(api.Resource("serviceaccounts")), storageFactory.ResourcePrefix(api.Resource("secrets")))
}
apiAuthenticator, securityDefinitions, err := authenticator.New(authenticator.AuthenticatorConfig{
Anonymous: s.GenericServerRunOptions.AnonymousAuth,
AnyToken: s.GenericServerRunOptions.EnableAnyToken,
BasicAuthFile: s.GenericServerRunOptions.BasicAuthFile,
ClientCAFile: s.GenericServerRunOptions.ClientCAFile,
TokenAuthFile: s.GenericServerRunOptions.TokenAuthFile,
OIDCIssuerURL: s.GenericServerRunOptions.OIDCIssuerURL,
OIDCClientID: s.GenericServerRunOptions.OIDCClientID,
OIDCCAFile: s.GenericServerRunOptions.OIDCCAFile,
OIDCUsernameClaim: s.GenericServerRunOptions.OIDCUsernameClaim,
OIDCGroupsClaim: s.GenericServerRunOptions.OIDCGroupsClaim,
ServiceAccountKeyFiles: s.ServiceAccountKeyFiles,
ServiceAccountLookup: s.ServiceAccountLookup,
ServiceAccountTokenGetter: serviceAccountGetter,
KeystoneURL: s.GenericServerRunOptions.KeystoneURL,
KeystoneCAFile: s.GenericServerRunOptions.KeystoneCAFile,
WebhookTokenAuthnConfigFile: s.WebhookTokenAuthnConfigFile,
WebhookTokenAuthnCacheTTL: s.WebhookTokenAuthnCacheTTL,
RequestHeaderConfig: s.GenericServerRunOptions.AuthenticationRequestHeaderConfig(),
})
if err != nil {
glog.Fatalf("Invalid Authentication Config: %v", err)
}
privilegedLoopbackToken := uuid.NewRandom().String()
selfClientConfig, err := s.GenericServerRunOptions.NewSelfClientConfig(privilegedLoopbackToken)
if err != nil {
glog.Fatalf("Failed to create clientset: %v", err)
}
client, err := s.GenericServerRunOptions.NewSelfClient(privilegedLoopbackToken)
if err != nil {
glog.Errorf("Failed to create clientset: %v", err)
}
sharedInformers := informers.NewSharedInformerFactory(nil, client, 10*time.Minute)
authorizationConfig := authorizer.AuthorizationConfig{
PolicyFile: s.GenericServerRunOptions.AuthorizationPolicyFile,
WebhookConfigFile: s.GenericServerRunOptions.AuthorizationWebhookConfigFile,
WebhookCacheAuthorizedTTL: s.GenericServerRunOptions.AuthorizationWebhookCacheAuthorizedTTL,
WebhookCacheUnauthorizedTTL: s.GenericServerRunOptions.AuthorizationWebhookCacheUnauthorizedTTL,
RBACSuperUser: s.GenericServerRunOptions.AuthorizationRBACSuperUser,
InformerFactory: sharedInformers,
}
authorizationModeNames := strings.Split(s.GenericServerRunOptions.AuthorizationMode, ",")
apiAuthorizer, err := authorizer.NewAuthorizerFromAuthorizationConfig(authorizationModeNames, authorizationConfig)
if err != nil {
glog.Fatalf("Invalid Authorization Config: %v", err)
}
admissionControlPluginNames := strings.Split(s.GenericServerRunOptions.AdmissionControl, ",")
// TODO(dims): We probably need to add an option "EnableLoopbackToken"
if apiAuthenticator != nil {
var uid = uuid.NewRandom().String()
tokens := make(map[string]*user.DefaultInfo)
tokens[privilegedLoopbackToken] = &user.DefaultInfo{
Name: user.APIServerUser,
UID: uid,
Groups: []string{user.SystemPrivilegedGroup},
}
tokenAuthenticator := authenticator.NewAuthenticatorFromTokens(tokens)
apiAuthenticator = authenticatorunion.New(tokenAuthenticator, apiAuthenticator)
tokenAuthorizer := authorizer.NewPrivilegedGroups(user.SystemPrivilegedGroup)
apiAuthorizer = authorizerunion.New(tokenAuthorizer, apiAuthorizer)
}
pluginInitializer := admission.NewPluginInitializer(sharedInformers, apiAuthorizer)
admissionController, err := admission.NewFromPlugins(client, admissionControlPluginNames, s.GenericServerRunOptions.AdmissionControlConfigFile, pluginInitializer)
if err != nil {
glog.Fatalf("Failed to initialize plugins: %v", err)
}
proxyTransport := utilnet.SetTransportDefaults(&http.Transport{
Dial: proxyDialerFn,
TLSClientConfig: proxyTLSClientConfig,
})
kubeVersion := version.Get()
genericConfig.Version = &kubeVersion
genericConfig.LoopbackClientConfig = selfClientConfig
genericConfig.Authenticator = apiAuthenticator
genericConfig.Authorizer = apiAuthorizer
genericConfig.AdmissionControl = admissionController
genericConfig.APIResourceConfigSource = storageFactory.APIResourceConfigSource
genericConfig.OpenAPIConfig.Info.Title = "Kubernetes"
genericConfig.OpenAPIConfig.Definitions = generatedopenapi.OpenAPIDefinitions
genericConfig.EnableOpenAPISupport = true
genericConfig.EnableMetrics = true
genericConfig.OpenAPIConfig.SecurityDefinitions = securityDefinitions
config := &master.Config{
GenericConfig: genericConfig.Config,
StorageFactory: storageFactory,
EnableWatchCache: s.GenericServerRunOptions.EnableWatchCache,
EnableCoreControllers: true,
DeleteCollectionWorkers: s.GenericServerRunOptions.DeleteCollectionWorkers,
EventTTL: s.EventTTL,
KubeletClientConfig: s.KubeletConfig,
EnableUISupport: true,
EnableLogsSupport: true,
ProxyTransport: proxyTransport,
Tunneler: tunneler,
ServiceIPRange: serviceIPRange,
APIServerServiceIP: apiServerServiceIP,
APIServerServicePort: 443,
ServiceNodePortRange: s.GenericServerRunOptions.ServiceNodePortRange,
KubernetesServiceNodePort: s.GenericServerRunOptions.KubernetesServiceNodePort,
MasterCount: s.GenericServerRunOptions.MasterCount,
}
if s.GenericServerRunOptions.EnableWatchCache {
glog.V(2).Infof("Initalizing cache sizes based on %dMB limit", s.GenericServerRunOptions.TargetRAMMB)
cachesize.InitializeWatchCacheSizes(s.GenericServerRunOptions.TargetRAMMB)
cachesize.SetWatchCacheSizes(s.GenericServerRunOptions.WatchCacheSizes)
}
m, err := config.Complete().New()
if err != nil {
return err
}
sharedInformers.Start(wait.NeverStop)
m.GenericAPIServer.PrepareRun().Run(wait.NeverStop)
return nil
}
// Run runs the specified APIServer. This should never exit.
func Run(s *options.APIServer) error {
genericapiserver.DefaultAndValidateRunOptions(s.ServerRunOptions)
capabilities.Initialize(capabilities.Capabilities{
AllowPrivileged: s.AllowPrivileged,
// TODO(vmarmol): Implement support for HostNetworkSources.
PrivilegedSources: capabilities.PrivilegedSources{
HostNetworkSources: []string{},
HostPIDSources: []string{},
HostIPCSources: []string{},
},
PerConnectionBandwidthLimitBytesPerSec: s.MaxConnectionBytesPerSec,
})
// Setup tunneler if needed
var tunneler genericapiserver.Tunneler
var proxyDialerFn apiserver.ProxyDialerFunc
if len(s.SSHUser) > 0 {
// Get ssh key distribution func, if supported
var installSSH genericapiserver.InstallSSHKey
cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)
if err != nil {
glog.Fatalf("Cloud provider could not be initialized: %v", err)
}
if cloud != nil {
if instances, supported := cloud.Instances(); supported {
installSSH = instances.AddSSHKeyToAllInstances
}
}
if s.KubeletConfig.Port == 0 {
glog.Fatalf("Must enable kubelet port if proxy ssh-tunneling is specified.")
}
// Set up the tunneler
// TODO(cjcullen): If we want this to handle per-kubelet ports or other
// kubelet listen-addresses, we need to plumb through options.
healthCheckPath := &url.URL{
Scheme: "https",
Host: net.JoinHostPort("127.0.0.1", strconv.FormatUint(uint64(s.KubeletConfig.Port), 10)),
Path: "healthz",
}
tunneler = genericapiserver.NewSSHTunneler(s.SSHUser, s.SSHKeyfile, healthCheckPath, installSSH)
// Use the tunneler's dialer to connect to the kubelet
s.KubeletConfig.Dial = tunneler.Dial
// Use the tunneler's dialer when proxying to pods, services, and nodes
proxyDialerFn = tunneler.Dial
}
// Proxying to pods and services is IP-based... don't expect to be able to verify the hostname
proxyTLSClientConfig := &tls.Config{InsecureSkipVerify: true}
kubeletClient, err := kubeletclient.NewStaticKubeletClient(&s.KubeletConfig)
if err != nil {
glog.Fatalf("Failure to start kubelet client: %v", err)
}
storageGroupsToEncodingVersion, err := s.StorageGroupsToEncodingVersion()
if err != nil {
glog.Fatalf("error generating storage version map: %s", err)
}
storageFactory, err := genericapiserver.BuildDefaultStorageFactory(
s.StorageConfig, s.DefaultStorageMediaType, api.Codecs,
genericapiserver.NewDefaultResourceEncodingConfig(), storageGroupsToEncodingVersion,
master.DefaultAPIResourceConfigSource(), s.RuntimeConfig)
if err != nil {
glog.Fatalf("error in initializing storage factory: %s", err)
}
storageFactory.AddCohabitatingResources(batch.Resource("jobs"), extensions.Resource("jobs"))
storageFactory.AddCohabitatingResources(autoscaling.Resource("horizontalpodautoscalers"), extensions.Resource("horizontalpodautoscalers"))
for _, override := range s.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 := unversioned.GroupResource{Group: group, Resource: resource}
servers := strings.Split(tokens[1], ";")
storageFactory.SetEtcdLocation(groupResource, servers)
}
// Default to the private server key for service account token signing
if s.ServiceAccountKeyFile == "" && s.TLSPrivateKeyFile != "" {
if authenticator.IsValidServiceAccountKeyFile(s.TLSPrivateKeyFile) {
s.ServiceAccountKeyFile = s.TLSPrivateKeyFile
} else {
glog.Warning("No RSA key provided, service account token authentication disabled")
}
}
var serviceAccountGetter serviceaccount.ServiceAccountTokenGetter
if s.ServiceAccountLookup {
// If we need to look up service accounts and tokens,
// go directly to etcd to avoid recursive auth insanity
storage, err := storageFactory.New(api.Resource("serviceaccounts"))
if err != nil {
glog.Fatalf("Unable to get serviceaccounts storage: %v", err)
}
serviceAccountGetter = serviceaccountcontroller.NewGetterFromStorageInterface(storage)
}
authenticator, err := authenticator.New(authenticator.AuthenticatorConfig{
BasicAuthFile: s.BasicAuthFile,
ClientCAFile: s.ClientCAFile,
TokenAuthFile: s.TokenAuthFile,
OIDCIssuerURL: s.OIDCIssuerURL,
OIDCClientID: s.OIDCClientID,
OIDCCAFile: s.OIDCCAFile,
OIDCUsernameClaim: s.OIDCUsernameClaim,
OIDCGroupsClaim: s.OIDCGroupsClaim,
ServiceAccountKeyFile: s.ServiceAccountKeyFile,
ServiceAccountLookup: s.ServiceAccountLookup,
ServiceAccountTokenGetter: serviceAccountGetter,
KeystoneURL: s.KeystoneURL,
WebhookTokenAuthnConfigFile: s.WebhookTokenAuthnConfigFile,
WebhookTokenAuthnCacheTTL: s.WebhookTokenAuthnCacheTTL,
})
if err != nil {
glog.Fatalf("Invalid Authentication Config: %v", err)
}
authorizationModeNames := strings.Split(s.AuthorizationMode, ",")
authorizer, err := apiserver.NewAuthorizerFromAuthorizationConfig(authorizationModeNames, s.AuthorizationConfig)
if err != nil {
glog.Fatalf("Invalid Authorization Config: %v", err)
}
admissionControlPluginNames := strings.Split(s.AdmissionControl, ",")
client, err := s.NewSelfClient()
if err != nil {
glog.Errorf("Failed to create clientset: %v", err)
}
admissionController := admission.NewFromPlugins(client, admissionControlPluginNames, s.AdmissionControlConfigFile)
genericConfig := genericapiserver.NewConfig(s.ServerRunOptions)
// TODO: Move the following to generic api server as well.
genericConfig.StorageFactory = storageFactory
genericConfig.Authenticator = authenticator
genericConfig.SupportsBasicAuth = len(s.BasicAuthFile) > 0
genericConfig.Authorizer = authorizer
genericConfig.AdmissionControl = admissionController
genericConfig.APIResourceConfigSource = storageFactory.APIResourceConfigSource
genericConfig.MasterServiceNamespace = s.MasterServiceNamespace
genericConfig.ProxyDialer = proxyDialerFn
genericConfig.ProxyTLSClientConfig = proxyTLSClientConfig
genericConfig.Serializer = api.Codecs
config := &master.Config{
Config: genericConfig,
EnableCoreControllers: true,
DeleteCollectionWorkers: s.DeleteCollectionWorkers,
EventTTL: s.EventTTL,
KubeletClient: kubeletClient,
Tunneler: tunneler,
}
if s.EnableWatchCache {
cachesize.SetWatchCacheSizes(s.WatchCacheSizes)
}
m, err := master.New(config)
if err != nil {
return err
}
m.Run(s.ServerRunOptions)
return nil
}
// BuildDefaultAPIServer constructs the appropriate APIServer and StorageFactory for the kubernetes server.
// It returns an error if no KubernetesMasterConfig was defined.
func BuildDefaultAPIServer(options configapi.MasterConfig) (*apiserveroptions.APIServer, genericapiserver.StorageFactory, error) {
if options.KubernetesMasterConfig == nil {
return nil, nil, fmt.Errorf("no kubernetesMasterConfig defined, unable to load settings")
}
_, portString, err := net.SplitHostPort(options.ServingInfo.BindAddress)
if err != nil {
return nil, nil, err
}
port, err := strconv.Atoi(portString)
if err != nil {
return nil, nil, err
}
portRange, err := knet.ParsePortRange(options.KubernetesMasterConfig.ServicesNodePortRange)
if err != nil {
return nil, nil, err
}
// Defaults are tested in TestAPIServerDefaults
server := apiserveroptions.NewAPIServer()
// Adjust defaults
server.EventTTL = 2 * time.Hour
server.ServiceClusterIPRange = net.IPNet(flagtypes.DefaultIPNet(options.KubernetesMasterConfig.ServicesSubnet))
server.ServiceNodePortRange = *portRange
server.EnableLogsSupport = false // don't expose server logs
server.EnableProfiling = false
server.APIPrefix = KubeAPIPrefix
server.APIGroupPrefix = KubeAPIGroupPrefix
server.SecurePort = port
server.MasterCount = options.KubernetesMasterConfig.MasterCount
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubernetesMasterConfig.APIServerArguments, server.AddFlags); len(err) > 0 {
return nil, nil, kerrors.NewAggregate(err)
}
resourceEncodingConfig := genericapiserver.NewDefaultResourceEncodingConfig()
resourceEncodingConfig.SetVersionEncoding(
kapi.GroupName,
unversioned.GroupVersion{Group: kapi.GroupName, Version: options.EtcdStorageConfig.KubernetesStorageVersion},
kapi.SchemeGroupVersion,
)
resourceEncodingConfig.SetVersionEncoding(
extensions.GroupName,
unversioned.GroupVersion{Group: extensions.GroupName, Version: "v1beta1"},
extensions.SchemeGroupVersion,
)
resourceEncodingConfig.SetVersionEncoding(
batch.GroupName,
unversioned.GroupVersion{Group: batch.GroupName, Version: "v1"},
batch.SchemeGroupVersion,
)
resourceEncodingConfig.SetVersionEncoding(
autoscaling.GroupName,
unversioned.GroupVersion{Group: autoscaling.GroupName, Version: "v1"},
autoscaling.SchemeGroupVersion,
)
storageGroupsToEncodingVersion, err := server.StorageGroupsToEncodingVersion()
if err != nil {
return nil, nil, err
}
// use the stock storage config based on args, but override bits from our config where appropriate
etcdConfig := server.StorageConfig
etcdConfig.Prefix = options.EtcdStorageConfig.KubernetesStoragePrefix
etcdConfig.ServerList = options.EtcdClientInfo.URLs
etcdConfig.KeyFile = options.EtcdClientInfo.ClientCert.KeyFile
etcdConfig.CertFile = options.EtcdClientInfo.ClientCert.CertFile
etcdConfig.CAFile = options.EtcdClientInfo.CA
storageFactory, err := genericapiserver.BuildDefaultStorageFactory(
etcdConfig,
server.DefaultStorageMediaType,
kapi.Codecs,
genericapiserver.NewDefaultResourceEncodingConfig(),
storageGroupsToEncodingVersion,
// FIXME: this GroupVersionResource override should be configurable
[]unversioned.GroupVersionResource{batch.Resource("scheduledjobs").WithVersion("v2alpha1")},
master.DefaultAPIResourceConfigSource(), server.RuntimeConfig,
)
if err != nil {
return nil, nil, err
}
/*storageFactory := genericapiserver.NewDefaultStorageFactory(
etcdConfig,
server.DefaultStorageMediaType,
kapi.Codecs,
resourceEncodingConfig,
master.DefaultAPIResourceConfigSource(),
)*/
// the order here is important, it defines which version will be used for storage
storageFactory.AddCohabitatingResources(extensions.Resource("jobs"), batch.Resource("jobs"))
storageFactory.AddCohabitatingResources(extensions.Resource("horizontalpodautoscalers"), autoscaling.Resource("horizontalpodautoscalers"))
return server, storageFactory, nil
}
func BuildKubernetesMasterConfig(options configapi.MasterConfig, requestContextMapper kapi.RequestContextMapper, kubeClient *kclient.Client, informers shared.InformerFactory, admissionControl admission.Interface, originAuthenticator authenticator.Request) (*MasterConfig, error) {
if options.KubernetesMasterConfig == nil {
return nil, errors.New("insufficient information to build KubernetesMasterConfig")
}
kubeletClientConfig := configapi.GetKubeletClientConfig(options)
kubeletClient, err := kubeletclient.NewStaticKubeletClient(kubeletClientConfig)
if err != nil {
return nil, fmt.Errorf("unable to configure Kubelet client: %v", err)
}
// in-order list of plug-ins that should intercept admission decisions
// TODO: Push node environment support to upstream in future
_, portString, err := net.SplitHostPort(options.ServingInfo.BindAddress)
if err != nil {
return nil, err
}
port, err := strconv.Atoi(portString)
if err != nil {
return nil, err
}
portRange, err := knet.ParsePortRange(options.KubernetesMasterConfig.ServicesNodePortRange)
if err != nil {
return nil, err
}
podEvictionTimeout, err := time.ParseDuration(options.KubernetesMasterConfig.PodEvictionTimeout)
if err != nil {
return nil, fmt.Errorf("unable to parse PodEvictionTimeout: %v", err)
}
// Defaults are tested in TestAPIServerDefaults
server := apiserveroptions.NewAPIServer()
// Adjust defaults
server.EventTTL = 2 * time.Hour
server.ServiceClusterIPRange = net.IPNet(flagtypes.DefaultIPNet(options.KubernetesMasterConfig.ServicesSubnet))
server.ServiceNodePortRange = *portRange
server.EnableLogsSupport = false // don't expose server logs
server.EnableProfiling = false
server.APIPrefix = KubeAPIPrefix
server.APIGroupPrefix = KubeAPIGroupPrefix
server.SecurePort = port
server.MasterCount = options.KubernetesMasterConfig.MasterCount
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubernetesMasterConfig.APIServerArguments, server.AddFlags); len(err) > 0 {
return nil, kerrors.NewAggregate(err)
}
// Defaults are tested in TestCMServerDefaults
cmserver := cmapp.NewCMServer()
// Adjust defaults
cmserver.Address = "" // no healthz endpoint
cmserver.Port = 0 // no healthz endpoint
cmserver.PodEvictionTimeout = unversioned.Duration{Duration: podEvictionTimeout}
cmserver.VolumeConfiguration.EnableDynamicProvisioning = options.VolumeConfig.DynamicProvisioningEnabled
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubernetesMasterConfig.ControllerArguments, cmserver.AddFlags); len(err) > 0 {
return nil, kerrors.NewAggregate(err)
}
cloud, err := cloudprovider.InitCloudProvider(cmserver.CloudProvider, cmserver.CloudConfigFile)
if err != nil {
return nil, err
}
if cloud != nil {
glog.V(2).Infof("Successfully initialized cloud provider: %q from the config file: %q\n", server.CloudProvider, server.CloudConfigFile)
}
var proxyClientCerts []tls.Certificate
if len(options.KubernetesMasterConfig.ProxyClientInfo.CertFile) > 0 {
clientCert, err := tls.LoadX509KeyPair(
options.KubernetesMasterConfig.ProxyClientInfo.CertFile,
options.KubernetesMasterConfig.ProxyClientInfo.KeyFile,
)
if err != nil {
return nil, err
}
proxyClientCerts = append(proxyClientCerts, clientCert)
}
resourceEncodingConfig := genericapiserver.NewDefaultResourceEncodingConfig()
resourceEncodingConfig.SetVersionEncoding(
kapi.GroupName,
unversioned.GroupVersion{Group: kapi.GroupName, Version: options.EtcdStorageConfig.KubernetesStorageVersion},
kapi.SchemeGroupVersion,
)
resourceEncodingConfig.SetVersionEncoding(
extensions.GroupName,
unversioned.GroupVersion{Group: extensions.GroupName, Version: "v1beta1"},
extensions.SchemeGroupVersion,
)
resourceEncodingConfig.SetVersionEncoding(
batch.GroupName,
unversioned.GroupVersion{Group: batch.GroupName, Version: "v1"},
batch.SchemeGroupVersion,
)
resourceEncodingConfig.SetVersionEncoding(
autoscaling.GroupName,
unversioned.GroupVersion{Group: autoscaling.GroupName, Version: "v1"},
autoscaling.SchemeGroupVersion,
)
etcdConfig := storagebackend.Config{
Prefix: options.EtcdStorageConfig.KubernetesStoragePrefix,
ServerList: options.EtcdClientInfo.URLs,
KeyFile: options.EtcdClientInfo.ClientCert.KeyFile,
CertFile: options.EtcdClientInfo.ClientCert.CertFile,
CAFile: options.EtcdClientInfo.CA,
DeserializationCacheSize: genericapiserveroptions.DefaultDeserializationCacheSize,
}
storageFactory := genericapiserver.NewDefaultStorageFactory(etcdConfig, "", kapi.Codecs, resourceEncodingConfig, master.DefaultAPIResourceConfigSource())
// the order here is important, it defines which version will be used for storage
storageFactory.AddCohabitatingResources(extensions.Resource("jobs"), batch.Resource("jobs"))
storageFactory.AddCohabitatingResources(extensions.Resource("horizontalpodautoscalers"), autoscaling.Resource("horizontalpodautoscalers"))
// Preserve previous behavior of using the first non-loopback address
// TODO: Deprecate this behavior and just require a valid value to be passed in
publicAddress := net.ParseIP(options.KubernetesMasterConfig.MasterIP)
if publicAddress == nil || publicAddress.IsUnspecified() || publicAddress.IsLoopback() {
hostIP, err := knet.ChooseHostInterface()
if err != nil {
glog.Fatalf("Unable to find suitable network address.error='%v'. Set the masterIP directly to avoid this error.", err)
}
publicAddress = hostIP
glog.Infof("Will report %v as public IP address.", publicAddress)
}
m := &master.Config{
Config: &genericapiserver.Config{
PublicAddress: publicAddress,
ReadWritePort: port,
Authenticator: originAuthenticator, // this is used to fulfill the tokenreviews endpoint which is used by node authentication
Authorizer: apiserver.NewAlwaysAllowAuthorizer(),
AdmissionControl: admissionControl,
StorageFactory: storageFactory,
ServiceClusterIPRange: (*net.IPNet)(&server.ServiceClusterIPRange),
ServiceNodePortRange: server.ServiceNodePortRange,
RequestContextMapper: requestContextMapper,
APIResourceConfigSource: getAPIResourceConfig(options),
APIPrefix: server.APIPrefix,
APIGroupPrefix: server.APIGroupPrefix,
MasterCount: server.MasterCount,
// Set the TLS options for proxying to pods and services
// Proxying to nodes uses the kubeletClient TLS config (so can provide a different cert, and verify the node hostname)
ProxyTLSClientConfig: &tls.Config{
// Proxying to pods and services cannot verify hostnames, since they are contacted on randomly allocated IPs
InsecureSkipVerify: true,
Certificates: proxyClientCerts,
},
Serializer: kapi.Codecs,
EnableLogsSupport: server.EnableLogsSupport,
EnableProfiling: server.EnableProfiling,
EnableWatchCache: server.EnableWatchCache,
MasterServiceNamespace: server.MasterServiceNamespace,
ExternalHost: server.ExternalHost,
MinRequestTimeout: server.MinRequestTimeout,
KubernetesServiceNodePort: server.KubernetesServiceNodePort,
},
EventTTL: server.EventTTL,
KubeletClient: kubeletClient,
EnableCoreControllers: true,
DeleteCollectionWorkers: server.DeleteCollectionWorkers,
}
if server.EnableWatchCache {
cachesize.SetWatchCacheSizes(server.WatchCacheSizes)
}
if options.DNSConfig != nil {
_, dnsPortStr, err := net.SplitHostPort(options.DNSConfig.BindAddress)
if err != nil {
return nil, fmt.Errorf("unable to parse DNS bind address %s: %v", options.DNSConfig.BindAddress, err)
}
dnsPort, err := strconv.Atoi(dnsPortStr)
if err != nil {
return nil, fmt.Errorf("invalid DNS port: %v", err)
}
m.ExtraServicePorts = append(m.ExtraServicePorts,
kapi.ServicePort{Name: "dns", Port: 53, Protocol: kapi.ProtocolUDP, TargetPort: intstr.FromInt(dnsPort)},
kapi.ServicePort{Name: "dns-tcp", Port: 53, Protocol: kapi.ProtocolTCP, TargetPort: intstr.FromInt(dnsPort)},
)
m.ExtraEndpointPorts = append(m.ExtraEndpointPorts,
kapi.EndpointPort{Name: "dns", Port: int32(dnsPort), Protocol: kapi.ProtocolUDP},
kapi.EndpointPort{Name: "dns-tcp", Port: int32(dnsPort), Protocol: kapi.ProtocolTCP},
)
}
kmaster := &MasterConfig{
Options: *options.KubernetesMasterConfig,
KubeClient: kubeClient,
Master: m,
ControllerManager: cmserver,
CloudProvider: cloud,
Informers: informers,
}
return kmaster, nil
}