fix schema for kubeproxyconfig/v1alph1

cmd/kubeadm/app/util/config/testdata/conversion/master/internal.yaml

@@ -64,7 +64,7 @@ KubeProxy:
       minSyncPeriod: 0s
       syncPeriod: 30s
     ipvs:
-      ExcludeCIDRs: null
+      excludeCIDRs: null
       minSyncPeriod: 0s
       scheduler: ""
       syncPeriod: 30s

cmd/kubeadm/app/util/config/testdata/conversion/master/v1alpha1.yaml

@@ -53,7 +53,7 @@ kubeProxy:
       minSyncPeriod: 0s
       syncPeriod: 30s
     ipvs:
-      ExcludeCIDRs: null
+      excludeCIDRs: null
       minSyncPeriod: 0s
       scheduler: ""
       syncPeriod: 30s

cmd/kubeadm/app/util/config/testdata/conversion/master/v1alpha1_without_TypeMeta.yaml

@@ -50,7 +50,7 @@ kubeProxy:
       minSyncPeriod: 0s
       syncPeriod: 30s
     ipvs:
-      ExcludeCIDRs: null
+      excludeCIDRs: null
       minSyncPeriod: 0s
       scheduler: ""
       syncPeriod: 30s

cmd/kubeadm/app/util/config/testdata/conversion/master/v1alpha2.yaml

@@ -54,7 +54,7 @@ kubeProxy:
       minSyncPeriod: 0s
       syncPeriod: 30s
     ipvs:
-      ExcludeCIDRs: null
+      excludeCIDRs: null
       minSyncPeriod: 0s
       scheduler: ""
       syncPeriod: 30s

cmd/kubeadm/app/util/config/testdata/defaulting/master/defaulted.yaml

@@ -49,7 +49,7 @@ kubeProxy:
       minSyncPeriod: 0s
       syncPeriod: 30s
     ipvs:
-      ExcludeCIDRs: null
+      excludeCIDRs: null
       minSyncPeriod: 0s
       scheduler: ""
       syncPeriod: 30s

cmd/kubeadm/app/util/config/testdata/v1alpha1_upgrade/after.yaml

@@ -49,7 +49,7 @@ kubeProxy:
       minSyncPeriod: 0s
       syncPeriod: 30s
     ipvs:
-      ExcludeCIDRs: null
+      excludeCIDRs: null
       minSyncPeriod: 0s
       scheduler: ""
       syncPeriod: 30s

pkg/proxy/apis/kubeproxyconfig/v1alpha1/types.go

@@ -65,7 +65,7 @@ type KubeProxyIPVSConfiguration struct {
 	Scheduler string `json:"scheduler"`
 	// excludeCIDRs is a list of CIDR's which the ipvs proxier should not touch
 	// when cleaning up ipvs services.
-	ExcludeCIDRs []string
+	ExcludeCIDRs []string `json:"excludeCIDRs"`
 }
 
 // KubeProxyConntrackConfiguration contains conntrack settings for