mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
synced 2025-11-02 03:08:15 +00:00
cmd/kube-controller-manager
This commit is contained in:
Chao Xu
@@ -23,15 +23,15 @@ import (
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"time"
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"github.com/golang/glog"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/resource"
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"k8s.io/kubernetes/pkg/api/unversioned"
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"k8s.io/kubernetes/pkg/apis/autoscaling"
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"k8s.io/kubernetes/pkg/apis/extensions"
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"k8s.io/kubernetes/pkg/api/v1"
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autoscaling "k8s.io/kubernetes/pkg/apis/autoscaling/v1"
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extensions "k8s.io/kubernetes/pkg/apis/extensions/v1beta1"
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"k8s.io/kubernetes/pkg/client/cache"
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unversionedautoscaling "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/autoscaling/internalversion"
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unversionedcore "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/internalversion"
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unversionedextensions "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/extensions/internalversion"
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unversionedautoscaling "k8s.io/kubernetes/pkg/client/clientset_generated/release_1_5/typed/autoscaling/v1"
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v1core "k8s.io/kubernetes/pkg/client/clientset_generated/release_1_5/typed/core/v1"
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unversionedextensions "k8s.io/kubernetes/pkg/client/clientset_generated/release_1_5/typed/extensions/v1beta1"
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"k8s.io/kubernetes/pkg/client/record"
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"k8s.io/kubernetes/pkg/runtime"
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utilruntime "k8s.io/kubernetes/pkg/util/runtime"
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@@ -75,11 +75,11 @@ var upscaleForbiddenWindow = 3 * time.Minute
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func newInformer(controller *HorizontalController, resyncPeriod time.Duration) (cache.Store, *cache.Controller) {
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return cache.NewInformer(
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&cache.ListWatch{
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ListFunc: func(options api.ListOptions) (runtime.Object, error) {
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return controller.hpaNamespacer.HorizontalPodAutoscalers(api.NamespaceAll).List(options)
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ListFunc: func(options v1.ListOptions) (runtime.Object, error) {
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return controller.hpaNamespacer.HorizontalPodAutoscalers(v1.NamespaceAll).List(options)
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},
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WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
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return controller.hpaNamespacer.HorizontalPodAutoscalers(api.NamespaceAll).Watch(options)
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WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
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return controller.hpaNamespacer.HorizontalPodAutoscalers(v1.NamespaceAll).Watch(options)
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},
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},
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&autoscaling.HorizontalPodAutoscaler{},
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@@ -90,7 +90,7 @@ func newInformer(controller *HorizontalController, resyncPeriod time.Duration) (
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hasCPUPolicy := hpa.Spec.TargetCPUUtilizationPercentage != nil
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_, hasCustomMetricsPolicy := hpa.Annotations[HpaCustomMetricsTargetAnnotationName]
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if !hasCPUPolicy && !hasCustomMetricsPolicy {
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controller.eventRecorder.Event(hpa, api.EventTypeNormal, "DefaultPolicy", "No scaling policy specified - will use default one. See documentation for details")
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controller.eventRecorder.Event(hpa, v1.EventTypeNormal, "DefaultPolicy", "No scaling policy specified - will use default one. See documentation for details")
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}
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err := controller.reconcileAutoscaler(hpa)
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if err != nil {
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@@ -109,10 +109,10 @@ func newInformer(controller *HorizontalController, resyncPeriod time.Duration) (
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)
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}
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func NewHorizontalController(evtNamespacer unversionedcore.EventsGetter, scaleNamespacer unversionedextensions.ScalesGetter, hpaNamespacer unversionedautoscaling.HorizontalPodAutoscalersGetter, replicaCalc *ReplicaCalculator, resyncPeriod time.Duration) *HorizontalController {
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func NewHorizontalController(evtNamespacer v1core.EventsGetter, scaleNamespacer unversionedextensions.ScalesGetter, hpaNamespacer unversionedautoscaling.HorizontalPodAutoscalersGetter, replicaCalc *ReplicaCalculator, resyncPeriod time.Duration) *HorizontalController {
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broadcaster := record.NewBroadcaster()
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broadcaster.StartRecordingToSink(&unversionedcore.EventSinkImpl{Interface: evtNamespacer.Events("")})
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recorder := broadcaster.NewRecorder(api.EventSource{Component: "horizontal-pod-autoscaler"})
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broadcaster.StartRecordingToSink(&v1core.EventSinkImpl{Interface: evtNamespacer.Events("")})
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recorder := broadcaster.NewRecorder(v1.EventSource{Component: "horizontal-pod-autoscaler"})
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controller := &HorizontalController{
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replicaCalc: replicaCalc,
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@@ -153,31 +153,31 @@ func (a *HorizontalController) computeReplicasForCPUUtilization(hpa *autoscaling
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if scale.Status.Selector == nil {
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errMsg := "selector is required"
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "SelectorRequired", errMsg)
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "SelectorRequired", errMsg)
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return 0, nil, time.Time{}, fmt.Errorf(errMsg)
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}
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selector, err := unversioned.LabelSelectorAsSelector(scale.Status.Selector)
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selector, err := unversioned.LabelSelectorAsSelector(&unversioned.LabelSelector{MatchLabels: scale.Status.Selector})
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if err != nil {
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errMsg := fmt.Sprintf("couldn't convert selector string to a corresponding selector object: %v", err)
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "InvalidSelector", errMsg)
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "InvalidSelector", errMsg)
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return 0, nil, time.Time{}, fmt.Errorf(errMsg)
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}
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desiredReplicas, utilization, timestamp, err := a.replicaCalc.GetResourceReplicas(currentReplicas, targetUtilization, api.ResourceCPU, hpa.Namespace, selector)
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desiredReplicas, utilization, timestamp, err := a.replicaCalc.GetResourceReplicas(currentReplicas, targetUtilization, v1.ResourceCPU, hpa.Namespace, selector)
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if err != nil {
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lastScaleTime := getLastScaleTime(hpa)
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if time.Now().After(lastScaleTime.Add(upscaleForbiddenWindow)) {
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "FailedGetMetrics", err.Error())
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "FailedGetMetrics", err.Error())
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} else {
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a.eventRecorder.Event(hpa, api.EventTypeNormal, "MetricsNotAvailableYet", err.Error())
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a.eventRecorder.Event(hpa, v1.EventTypeNormal, "MetricsNotAvailableYet", err.Error())
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}
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return 0, nil, time.Time{}, fmt.Errorf("failed to get CPU utilization: %v", err)
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}
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if desiredReplicas != currentReplicas {
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a.eventRecorder.Eventf(hpa, api.EventTypeNormal, "DesiredReplicasComputed",
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a.eventRecorder.Eventf(hpa, v1.EventTypeNormal, "DesiredReplicasComputed",
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"Computed the desired num of replicas: %d (avgCPUutil: %d, current replicas: %d)",
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desiredReplicas, utilization, scale.Status.Replicas)
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}
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@@ -201,11 +201,11 @@ func (a *HorizontalController) computeReplicasForCustomMetrics(hpa *autoscaling.
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var targetList extensions.CustomMetricTargetList
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if err := json.Unmarshal([]byte(cmAnnotation), &targetList); err != nil {
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "FailedParseCustomMetricsAnnotation", err.Error())
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "FailedParseCustomMetricsAnnotation", err.Error())
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return 0, "", "", time.Time{}, fmt.Errorf("failed to parse custom metrics annotation: %v", err)
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}
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if len(targetList.Items) == 0 {
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "NoCustomMetricsInAnnotation", err.Error())
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "NoCustomMetricsInAnnotation", err.Error())
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return 0, "", "", time.Time{}, fmt.Errorf("no custom metrics in annotation")
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}
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@@ -216,14 +216,14 @@ func (a *HorizontalController) computeReplicasForCustomMetrics(hpa *autoscaling.
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for _, customMetricTarget := range targetList.Items {
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if scale.Status.Selector == nil {
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errMsg := "selector is required"
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "SelectorRequired", errMsg)
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "SelectorRequired", errMsg)
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return 0, "", "", time.Time{}, fmt.Errorf("selector is required")
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}
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selector, err := unversioned.LabelSelectorAsSelector(scale.Status.Selector)
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selector, err := unversioned.LabelSelectorAsSelector(&unversioned.LabelSelector{MatchLabels: scale.Status.Selector})
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if err != nil {
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errMsg := fmt.Sprintf("couldn't convert selector string to a corresponding selector object: %v", err)
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "InvalidSelector", errMsg)
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "InvalidSelector", errMsg)
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return 0, "", "", time.Time{}, fmt.Errorf("couldn't convert selector string to a corresponding selector object: %v", err)
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}
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floatTarget := float64(customMetricTarget.TargetValue.MilliValue()) / 1000.0
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@@ -231,9 +231,9 @@ func (a *HorizontalController) computeReplicasForCustomMetrics(hpa *autoscaling.
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if err != nil {
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lastScaleTime := getLastScaleTime(hpa)
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if time.Now().After(lastScaleTime.Add(upscaleForbiddenWindow)) {
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "FailedGetCustomMetrics", err.Error())
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "FailedGetCustomMetrics", err.Error())
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} else {
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a.eventRecorder.Event(hpa, api.EventTypeNormal, "CustomMetricsNotAvailableYet", err.Error())
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a.eventRecorder.Event(hpa, v1.EventTypeNormal, "CustomMetricsNotAvailableYet", err.Error())
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}
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return 0, "", "", time.Time{}, fmt.Errorf("failed to get custom metric value: %v", err)
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@@ -246,7 +246,7 @@ func (a *HorizontalController) computeReplicasForCustomMetrics(hpa *autoscaling.
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}
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quantity, err := resource.ParseQuantity(fmt.Sprintf("%.3f", utilizationProposal))
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if err != nil {
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "FailedSetCustomMetrics", err.Error())
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "FailedSetCustomMetrics", err.Error())
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return 0, "", "", time.Time{}, fmt.Errorf("failed to set custom metric value: %v", err)
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}
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statusList.Items = append(statusList.Items, extensions.CustomMetricCurrentStatus{
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@@ -256,14 +256,14 @@ func (a *HorizontalController) computeReplicasForCustomMetrics(hpa *autoscaling.
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}
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byteStatusList, err := json.Marshal(statusList)
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if err != nil {
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "FailedSerializeCustomMetrics", err.Error())
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "FailedSerializeCustomMetrics", err.Error())
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return 0, "", "", time.Time{}, fmt.Errorf("failed to serialize custom metric status: %v", err)
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}
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if replicas != currentReplicas {
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a.eventRecorder.Eventf(hpa, api.EventTypeNormal, "DesiredReplicasComputedCustomMetric",
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a.eventRecorder.Eventf(hpa, v1.EventTypeNormal, "DesiredReplicasComputedCustomMetric",
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"Computed the desired num of replicas: %d, metric: %s, current replicas: %d",
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int32(replicas), metric, scale.Status.Replicas)
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func() *int32 { i := int32(replicas); return &i }(), metric, scale.Status.Replicas)
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}
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return replicas, metric, string(byteStatusList), timestamp, nil
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@@ -274,7 +274,7 @@ func (a *HorizontalController) reconcileAutoscaler(hpa *autoscaling.HorizontalPo
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scale, err := a.scaleNamespacer.Scales(hpa.Namespace).Get(hpa.Spec.ScaleTargetRef.Kind, hpa.Spec.ScaleTargetRef.Name)
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if err != nil {
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "FailedGetScale", err.Error())
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "FailedGetScale", err.Error())
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return fmt.Errorf("failed to query scale subresource for %s: %v", reference, err)
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}
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currentReplicas := scale.Status.Replicas
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@@ -367,10 +367,10 @@ func (a *HorizontalController) reconcileAutoscaler(hpa *autoscaling.HorizontalPo
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scale.Spec.Replicas = desiredReplicas
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_, err = a.scaleNamespacer.Scales(hpa.Namespace).Update(hpa.Spec.ScaleTargetRef.Kind, scale)
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if err != nil {
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a.eventRecorder.Eventf(hpa, api.EventTypeWarning, "FailedRescale", "New size: %d; reason: %s; error: %v", desiredReplicas, rescaleReason, err.Error())
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a.eventRecorder.Eventf(hpa, v1.EventTypeWarning, "FailedRescale", "New size: %d; reason: %s; error: %v", desiredReplicas, rescaleReason, err.Error())
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return fmt.Errorf("failed to rescale %s: %v", reference, err)
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}
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a.eventRecorder.Eventf(hpa, api.EventTypeNormal, "SuccessfulRescale", "New size: %d; reason: %s", desiredReplicas, rescaleReason)
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a.eventRecorder.Eventf(hpa, v1.EventTypeNormal, "SuccessfulRescale", "New size: %d; reason: %s", desiredReplicas, rescaleReason)
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glog.Infof("Successfull rescale of %s, old size: %d, new size: %d, reason: %s",
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hpa.Name, currentReplicas, desiredReplicas, rescaleReason)
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} else {
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@@ -428,7 +428,7 @@ func (a *HorizontalController) updateStatus(hpa *autoscaling.HorizontalPodAutosc
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_, err := a.hpaNamespacer.HorizontalPodAutoscalers(hpa.Namespace).UpdateStatus(hpa)
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if err != nil {
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a.eventRecorder.Event(hpa, api.EventTypeWarning, "FailedUpdateStatus", err.Error())
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a.eventRecorder.Event(hpa, v1.EventTypeWarning, "FailedUpdateStatus", err.Error())
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return fmt.Errorf("failed to update status for %s: %v", hpa.Name, err)
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}
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glog.V(2).Infof("Successfully updated status for %s", hpa.Name)
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