start sharing the pod cache and list/watch

pkg/controller/framework/informers/factory.go

@@ -0,0 +1,44 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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 informers
+
+import (
+	"time"
+
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/client/cache"
+	clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
+	"k8s.io/kubernetes/pkg/controller/framework"
+	"k8s.io/kubernetes/pkg/runtime"
+	"k8s.io/kubernetes/pkg/watch"
+)
+
+// CreateSharedPodInformer returns a SharedInformer that lists and watches all pods
+func CreateSharedPodInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedInformer {
+	sharedInformer := framework.NewSharedInformer(
+		&cache.ListWatch{
+			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
+				return client.Core().Pods(api.NamespaceAll).List(options)
+			},
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
+				return client.Core().Pods(api.NamespaceAll).Watch(options)
+			},
+		},
+		&api.Pod{}, resyncPeriod)
+
+	return sharedInformer
+}