Revert "Revert kubelet to default to ttl cache secret/configmap behavior"

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

@@ -101,7 +101,7 @@ cgroupsPerQOS: true
 clusterDNS:
 - 10.192.0.10
 clusterDomain: cluster.global
-configMapAndSecretChangeDetectionStrategy: Cache
+configMapAndSecretChangeDetectionStrategy: Watch
 containerLogMaxFiles: 5
 containerLogMaxSize: 10Mi
 contentType: application/vnd.kubernetes.protobuf

cmd/kubeadm/app/util/config/testdata/defaulting/controlplane/defaulted_non_linux.yaml

@@ -101,7 +101,7 @@ cgroupsPerQOS: true
 clusterDNS:
 - 10.192.0.10
 clusterDomain: cluster.global
-configMapAndSecretChangeDetectionStrategy: Cache
+configMapAndSecretChangeDetectionStrategy: Watch
 containerLogMaxFiles: 5
 containerLogMaxSize: 10Mi
 contentType: application/vnd.kubernetes.protobuf

pkg/kubelet/apis/config/v1beta1/defaults.go

@@ -215,7 +215,7 @@ func SetDefaults_KubeletConfiguration(obj *kubeletconfigv1beta1.KubeletConfigura
 		obj.ContainerLogMaxFiles = utilpointer.Int32Ptr(5)
 	}
 	if obj.ConfigMapAndSecretChangeDetectionStrategy == "" {
-		obj.ConfigMapAndSecretChangeDetectionStrategy = kubeletconfigv1beta1.TTLCacheChangeDetectionStrategy
+		obj.ConfigMapAndSecretChangeDetectionStrategy = kubeletconfigv1beta1.WatchChangeDetectionStrategy
 	}
 	if obj.EnforceNodeAllocatable == nil {
 		obj.EnforceNodeAllocatable = DefaultNodeAllocatableEnforcement

test/integration/kubelet/main_test.go

 /*
-Copyright 2017 The Kubernetes Authors.
+Copyright 2019 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.

test/integration/kubelet/watch_manager_test.go

+/*
+Copyright 2019 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 kubelet
 
 import (