Update kubernetes/client-go to v7.0.0 (#1808)

This fix updates k8s' client-go to v7.0.0, which matches k8s 1.10.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

vendor/k8s.io/api/certificates/OWNERS

@@ -6,7 +6,6 @@ reviewers:
 - caesarxuchao
 - liggitt
 - sttts
-- timothysc
 - dims
 - errordeveloper
 - mbohlool

vendor/k8s.io/api/certificates/v1beta1/generated.pb.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2017 The Kubernetes Authors.
+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.

vendor/k8s.io/api/certificates/v1beta1/generated.proto

@@ -1,5 +1,5 @@
 /*
-Copyright 2017 The Kubernetes Authors.
+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.

vendor/k8s.io/api/certificates/v1beta1/types.go

@@ -131,7 +131,7 @@ type KeyUsage string
 const (
 	UsageSigning            KeyUsage = "signing"
 	UsageDigitalSignature   KeyUsage = "digital signature"
-	UsageContentCommittment KeyUsage = "content committment"
+	UsageContentCommittment KeyUsage = "content commitment"
 	UsageKeyEncipherment    KeyUsage = "key encipherment"
 	UsageKeyAgreement       KeyUsage = "key agreement"
 	UsageDataEncipherment   KeyUsage = "data encipherment"

vendor/k8s.io/api/certificates/v1beta1/zz_generated.deepcopy.go

@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2017 The Kubernetes Authors.
+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.
@@ -16,7 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// This file was autogenerated by deepcopy-gen. Do not edit it manually!
+// Code generated by deepcopy-gen. DO NOT EDIT.
 
 package v1beta1
 
@@ -48,9 +48,8 @@ func (in *CertificateSigningRequest) DeepCopy() *CertificateSigningRequest {
 func (in *CertificateSigningRequest) DeepCopyObject() runtime.Object {
 	if c := in.DeepCopy(); c != nil {
 		return c
-	} else {
-		return nil
 	}
+	return nil
 }
 
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
@@ -99,9 +98,8 @@ func (in *CertificateSigningRequestList) DeepCopy() *CertificateSigningRequestLi
 func (in *CertificateSigningRequestList) DeepCopyObject() runtime.Object {
 	if c := in.DeepCopy(); c != nil {
 		return c
-	} else {
-		return nil
 	}
+	return nil
 }
 
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
@@ -126,8 +124,12 @@ func (in *CertificateSigningRequestSpec) DeepCopyInto(out *CertificateSigningReq
 		in, out := &in.Extra, &out.Extra
 		*out = make(map[string]ExtraValue, len(*in))
 		for key, val := range *in {
-			(*out)[key] = make(ExtraValue, len(val))
-			copy((*out)[key], val)
+			if val == nil {
+				(*out)[key] = nil
+			} else {
+				(*out)[key] = make([]string, len(val))
+				copy((*out)[key], val)
+			}
 		}
 	}
 	return
@@ -170,3 +172,23 @@ func (in *CertificateSigningRequestStatus) DeepCopy() *CertificateSigningRequest
 	in.DeepCopyInto(out)
 	return out
 }
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in ExtraValue) DeepCopyInto(out *ExtraValue) {
+	{
+		in := &in
+		*out = make(ExtraValue, len(*in))
+		copy(*out, *in)
+		return
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ExtraValue.
+func (in ExtraValue) DeepCopy() ExtraValue {
+	if in == nil {
+		return nil
+	}
+	out := new(ExtraValue)
+	in.DeepCopyInto(out)
+	return *out
+}