diff --git a/vendor/k8s.io/client-go/pkg/apis/clientauthentication/v1alpha1/types.go b/vendor/k8s.io/client-go/pkg/apis/clientauthentication/v1alpha1/types.go
new file mode 100644
index 0000000..c714e24
--- /dev/null
+++ b/vendor/k8s.io/client-go/pkg/apis/clientauthentication/v1alpha1/types.go
@@ -0,0 +1,78 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1alpha1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// ExecCredential is used by exec-based plugins to communicate credentials to
+// HTTP transports.
+type ExecCredential struct {
+	metav1.TypeMeta `json:",inline"`
+
+	// Spec holds information passed to the plugin by the transport. This contains
+	// request and runtime specific information, such as if the session is interactive.
+	Spec ExecCredentialSpec `json:"spec,omitempty"`
+
+	// Status is filled in by the plugin and holds the credentials that the transport
+	// should use to contact the API.
+	// +optional
+	Status *ExecCredentialStatus `json:"status,omitempty"`
+}
+
+// ExecCredenitalSpec holds request and runtime specific information provided by
+// the transport.
+type ExecCredentialSpec struct {
+	// Response is populated when the transport encounters HTTP status codes, such as 401,
+	// suggesting previous credentials were invalid.
+	// +optional
+	Response *Response `json:"response,omitempty"`
+
+	// Interactive is true when the transport detects the command is being called from an
+	// interactive prompt.
+	// +optional
+	Interactive bool `json:"interactive,omitempty"`
+}
+
+// ExecCredentialStatus holds credentials for the transport to use.
+//
+// Token and ClientKeyData are sensitive fields. This data should only be
+// transmitted in-memory between client and exec plugin process. Exec plugin
+// itself should at least be protected via file permissions.
+type ExecCredentialStatus struct {
+	// ExpirationTimestamp indicates a time when the provided credentials expire.
+	// +optional
+	ExpirationTimestamp *metav1.Time `json:"expirationTimestamp,omitempty"`
+	// Token is a bearer token used by the client for request authentication.
+	Token string `json:"token,omitempty"`
+	// PEM-encoded client TLS certificates (including intermediates, if any).
+	ClientCertificateData string `json:"clientCertificateData,omitempty"`
+	// PEM-encoded private key for the above certificate.
+	ClientKeyData string `json:"clientKeyData,omitempty"`
+}
+
+// Response defines metadata about a failed request, including HTTP status code and
+// response headers.
+type Response struct {
+	// Header holds HTTP headers returned by the server.
+	Header map[string][]string `json:"header,omitempty"`
+	// Code is the HTTP status code returned by the server.
+	Code int32 `json:"code,omitempty"`
+}