func newHorizontalPodAutoscalerInformer(client internalclientset.Interface, resyncPeriod time.Duration) cache.SharedIndexInformer {
sharedIndexInformer := cache.NewSharedIndexInformer(
&cache.ListWatch{
ListFunc: func(options v1.ListOptions) (runtime.Object, error) {
var internalOptions api.ListOptions
if err := api.Scheme.Convert(&options, &internalOptions, nil); err != nil {
return nil, err
}
return client.Autoscaling().HorizontalPodAutoscalers(api.NamespaceAll).List(internalOptions)
},
WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
var internalOptions api.ListOptions
if err := api.Scheme.Convert(&options, &internalOptions, nil); err != nil {
return nil, err
}
return client.Autoscaling().HorizontalPodAutoscalers(api.NamespaceAll).Watch(internalOptions)
},
},
&autoscaling.HorizontalPodAutoscaler{},
resyncPeriod,
cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc},
)
return sharedIndexInformer
}
// GetHorizontalPodAutoscalerDetail returns detailed information about a horizontal pod autoscaler
func GetHorizontalPodAutoscalerDetail(client client.Interface, namespace string, name string) (*HorizontalPodAutoscalerDetail, error) {
log.Printf("Getting details of %s horizontal pod autoscaler", name)
rawHorizontalPodAutoscaler, err := client.Autoscaling().HorizontalPodAutoscalers(namespace).Get(name)
if err != nil {
return nil, err
}
return getHorizontalPodAutoscalerDetail(rawHorizontalPodAutoscaler), nil
}
// TODO: Move this upstream
func printAutoscalingInfo(res unversioned.GroupResource, namespace, name string, kclient kclientset.Interface, w *tabwriter.Writer) {
hpaList, err := kclient.Autoscaling().HorizontalPodAutoscalers(namespace).List(kapi.ListOptions{LabelSelector: labels.Everything()})
if err != nil {
return
}
scaledBy := []autoscaling.HorizontalPodAutoscaler{}
for _, hpa := range hpaList.Items {
if hpa.Spec.ScaleTargetRef.Name == name && hpa.Spec.ScaleTargetRef.Kind == res.String() {
scaledBy = append(scaledBy, hpa)
}
}
for _, hpa := range scaledBy {
cpuUtil := ""
if hpa.Spec.TargetCPUUtilizationPercentage != nil {
cpuUtil = fmt.Sprintf(", triggered at %d%% CPU usage", *hpa.Spec.TargetCPUUtilizationPercentage)
}
fmt.Fprintf(w, "Autoscaling:\tbetween %d and %d replicas%s\n", *hpa.Spec.MinReplicas, hpa.Spec.MaxReplicas, cpuUtil)
// TODO: Print a warning in case of multiple hpas.
// Related oc status PR: https://github.com/openshift/origin/pull/7799
break
}
}
// GetPodListMetricsChannel returns a pair of channels to MetricsByPod and errors that
// both must be read numReads times.
func GetHorizontalPodAutoscalerListChannel(client client.Interface, nsQuery *NamespaceQuery, numReads int) HorizontalPodAutoscalerListChannel {
channel := HorizontalPodAutoscalerListChannel{
List: make(chan *autoscaling.HorizontalPodAutoscalerList, numReads),
Error: make(chan error, numReads),
}
go func() {
list, err := client.Autoscaling().HorizontalPodAutoscalers(nsQuery.ToRequestParam()).List(listEverything)
for i := 0; i < numReads; i++ {
channel.List <- list
channel.Error <- err
}
}()
return channel
}