Experimental client for horizontal pod autoscaler.

Implementation of experimental client for horizontal pod autoscaler. Placeholder implementation for controller for horizontal pod autoscaler.

pkg/controller/autoscaler/horizontalpodautoscaler_controller.go

@@ -0,0 +1,58 @@
+/*
+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 autoscalercontroller
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/golang/glog"
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/client/unversioned"
+	"k8s.io/kubernetes/pkg/fields"
+	"k8s.io/kubernetes/pkg/labels"
+	"k8s.io/kubernetes/pkg/util"
+)
+
+type HorizontalPodAutoscalerController struct {
+	kubeClient unversioned.ExperimentalInterface
+}
+
+func New(kubeClient unversioned.ExperimentalInterface) *HorizontalPodAutoscalerController {
+	return &HorizontalPodAutoscalerController{
+		kubeClient: kubeClient,
+	}
+}
+
+func (a *HorizontalPodAutoscalerController) Run(syncPeriod time.Duration) {
+	go util.Forever(func() {
+		if err := a.reconcileAutoscalers(); err != nil {
+			glog.Errorf("Couldn't reconcile horizontal pod autoscalers: %v", err)
+		}
+	}, syncPeriod)
+}
+
+func (a *HorizontalPodAutoscalerController) reconcileAutoscalers() error {
+	ns := api.NamespaceAll
+	list, err := a.kubeClient.HorizontalPodAutoscalers(ns).List(labels.Everything(), fields.Everything())
+	if err != nil {
+		return fmt.Errorf("error listing nodes: %v", err)
+	}
+	// TODO: implement!
+	glog.Info("autoscalers: %v", list)
+	return nil
+}