Golang common.NewSameNamespaceQuery函数代码示例

// GetPodsEvents gets pods events associated to resource targeted by given resource selector.
func GetPodsEvents(client client.Interface, namespace string, resourceSelector map[string]string) (
	[]api.Event, error) {

	channels := &common.ResourceChannels{
		PodList: common.GetPodListChannelWithOptions(
			client,
			common.NewSameNamespaceQuery(namespace),
			api.ListOptions{
				LabelSelector: labels.SelectorFromSet(resourceSelector),
				FieldSelector: fields.Everything(),
			},
			1),
		EventList: common.GetEventListChannel(client, common.NewSameNamespaceQuery(namespace), 1),
	}

	podList := <-channels.PodList.List
	if err := <-channels.PodList.Error; err != nil {
		return nil, err
	}

	eventList := <-channels.EventList.List
	if err := <-channels.EventList.Error; err != nil {
		return nil, err
	}

	events := filterEventsByPodsUID(eventList.Items, podList.Items)

	return events, nil
}

// GetDeploymentEvents returns model events for a deployment with the given name in the given
// namespace
func GetDeploymentOldReplicaSets(client client.Interface, dsQuery *dataselect.DataSelectQuery,
	namespace string, deploymentName string) (*replicasetlist.ReplicaSetList, error) {

	deployment, err := client.Extensions().Deployments(namespace).Get(deploymentName)
	if err != nil {
		return nil, err
	}

	selector, err := unversioned.LabelSelectorAsSelector(deployment.Spec.Selector)
	if err != nil {
		return nil, err
	}
	options := api.ListOptions{LabelSelector: selector}

	channels := &common.ResourceChannels{
		ReplicaSetList: common.GetReplicaSetListChannelWithOptions(client,
			common.NewSameNamespaceQuery(namespace), options, 1),
		PodList: common.GetPodListChannelWithOptions(client,
			common.NewSameNamespaceQuery(namespace), options, 1),
		EventList: common.GetEventListChannelWithOptions(client,
			common.NewSameNamespaceQuery(namespace), options, 1),
	}

	rawRs := <-channels.ReplicaSetList.List
	if err := <-channels.ReplicaSetList.Error; err != nil {
		return nil, err
	}
	rawPods := <-channels.PodList.List
	if err := <-channels.PodList.Error; err != nil {
		return nil, err
	}
	rawEvents := <-channels.EventList.List
	if err := <-channels.EventList.Error; err != nil {
		return nil, err
	}

	rawRepSets := make([]*extensions.ReplicaSet, 0)
	for i := range rawRs.Items {
		rawRepSets = append(rawRepSets, &rawRs.Items[i])
	}
	oldRs, _, err := deploymentutil.FindOldReplicaSets(deployment, rawRepSets, rawPods)
	if err != nil {
		return nil, err
	}

	oldReplicaSets := make([]extensions.ReplicaSet, len(oldRs))
	for i, replicaSet := range oldRs {
		oldReplicaSets[i] = *replicaSet
	}
	oldReplicaSetList := replicasetlist.CreateReplicaSetList(oldReplicaSets, rawPods.Items, rawEvents.Items,
		dsQuery, nil)
	return oldReplicaSetList, nil
}

// getJobPods returns list of pods targeting deployment.
func GetDeploymentPods(client client.Interface, heapsterClient heapster.HeapsterClient,
	dsQuery *dataselect.DataSelectQuery, namespace string, deploymentName string) (*pod.PodList, error) {

	deployment, err := client.Extensions().Deployments(namespace).Get(deploymentName)
	if err != nil {
		return nil, err
	}

	selector, err := unversioned.LabelSelectorAsSelector(deployment.Spec.Selector)
	if err != nil {
		return nil, err
	}

	options := api.ListOptions{LabelSelector: selector}
	channels := &common.ResourceChannels{
		PodList: common.GetPodListChannelWithOptions(client,
			common.NewSameNamespaceQuery(namespace), options, 1),
	}

	rawPods := <-channels.PodList.List
	if err := <-channels.PodList.Error; err != nil {
		return nil, err
	}

	pods := common.FilterNamespacedPodsBySelector(rawPods.Items, deployment.ObjectMeta.Namespace,
		deployment.Spec.Selector.MatchLabels)

	podList := pod.CreatePodList(pods, []api.Event{}, dsQuery, heapsterClient)
	return &podList, nil
}

// GetEvents gets events associated to resource with given name.
func GetEvents(client client.Interface, namespace, resourceName string) ([]api.Event, error) {

	fieldSelector, err := fields.ParseSelector("involvedObject.name=" + resourceName)

	if err != nil {
		return nil, err
	}

	channels := &common.ResourceChannels{
		EventList: common.GetEventListChannelWithOptions(
			client,
			common.NewSameNamespaceQuery(namespace),
			api.ListOptions{
				LabelSelector: labels.Everything(),
				FieldSelector: fieldSelector,
			},
			1),
	}

	eventList := <-channels.EventList.List
	if err := <-channels.EventList.Error; err != nil {
		return nil, err
	}

	return eventList.Items, nil
}

// GetServicePods gets list of pods targeted by given label selector in given namespace.
func GetServicePods(client k8sClient.Interface, heapsterClient client.HeapsterClient, namespace,
	name string, dsQuery *dataselect.DataSelectQuery) (*pod.PodList, error) {

	service, err := client.Core().Services(namespace).Get(name)
	if err != nil {
		return nil, err
	}

	labelSelector := labels.SelectorFromSet(service.Spec.Selector)
	channels := &common.ResourceChannels{
		PodList: common.GetPodListChannelWithOptions(client,
			common.NewSameNamespaceQuery(namespace),
			api.ListOptions{
				LabelSelector: labelSelector,
				FieldSelector: fields.Everything(),
			},
			1),
	}

	apiPodList := <-channels.PodList.List
	if err := <-channels.PodList.Error; err != nil {
		return nil, err
	}

	podList := pod.CreatePodList(apiPodList.Items, dsQuery, heapsterClient)
	return &podList, nil
}

// GetPodDetail returns the details (PodDetail) of a named Pod from a particular
// namespace.
func GetPodDetail(client k8sClient.Interface, heapsterClient client.HeapsterClient,
	namespace, name string) (*PodDetail, error) {

	log.Printf("Getting details of %s pod in %s namespace", name, namespace)

	channels := &common.ResourceChannels{
		ConfigMapList: common.GetConfigMapListChannel(client, common.NewSameNamespaceQuery(namespace), 1),
		PodMetrics:    common.GetPodMetricsChannel(heapsterClient, name, namespace),
	}

	pod, err := client.Pods(namespace).Get(name)

	if err != nil {
		return nil, err
	}

	// Download metrics
	_, metricPromises := dataselect.GenericDataSelectWithMetrics(toCells([]api.Pod{*pod}),
		dataselect.StdMetricsDataSelect, dataselect.NoResourceCache, &heapsterClient)
	metrics, _ := metricPromises.GetMetrics()

	if err = <-channels.ConfigMapList.Error; err != nil {
		return nil, err
	}
	configMapList := <-channels.ConfigMapList.List

	podDetail := toPodDetail(pod, metrics, configMapList)
	return &podDetail, nil
}

// GetDeploymentEvents returns model events for a deployment with the given name in the given
// namespace
func GetDeploymentEvents(client client.Interface, dsQuery *dataselect.DataSelectQuery, namespace string, deploymentName string) (
	*common.EventList, error) {

	deployment, err := client.Extensions().Deployments(namespace).Get(deploymentName)
	if err != nil {
		return nil, err
	}

	selector, err := unversioned.LabelSelectorAsSelector(deployment.Spec.Selector)
	if err != nil {
		return nil, err
	}

	options := api.ListOptions{LabelSelector: selector}
	channels := &common.ResourceChannels{
		EventList: common.GetEventListChannelWithOptions(client,
			common.NewSameNamespaceQuery(namespace), options, 1),
	}

	eventRaw := <-channels.EventList.List
	if err := <-channels.EventList.Error; err != nil {
		return nil, err
	}
	dpEvents := eventRaw.Items
	if !event.IsTypeFilled(dpEvents) {
		dpEvents = event.FillEventsType(dpEvents)
	}

	eventList := event.CreateEventList(dpEvents, dsQuery)

	return &eventList, nil
}

// GetPodDetail returns the details (PodDetail) of a named Pod from a particular
// namespace.
func GetPodDetail(client k8sClient.Interface, heapsterClient client.HeapsterClient,
	namespace, name string) (*PodDetail, error) {

	log.Printf("Getting details of %s pod in %s namespace", name, namespace)

	channels := &common.ResourceChannels{
		ConfigMapList: common.GetConfigMapListChannel(client, common.NewSameNamespaceQuery(namespace), 1),
		PodMetrics:    common.GetPodMetricsChannel(heapsterClient, name, namespace),
	}

	pod, err := client.Core().Pods(namespace).Get(name)

	if err != nil {
		return nil, err
	}

	controller := Controller{
		Kind: "unknown",
	}
	creatorAnnotation, found := pod.ObjectMeta.Annotations[api.CreatedByAnnotation]
	if found {
		creatorRef, err := getPodCreator(client, creatorAnnotation, common.NewSameNamespaceQuery(namespace), heapsterClient)
		if err != nil {
			return nil, err
		}
		controller = *creatorRef
	}

	// Download metrics
	_, metricPromises := dataselect.GenericDataSelectWithMetrics(toCells([]api.Pod{*pod}),
		dataselect.StdMetricsDataSelect, dataselect.NoResourceCache, &heapsterClient)
	metrics, _ := metricPromises.GetMetrics()

	if err = <-channels.ConfigMapList.Error; err != nil {
		return nil, err
	}
	configMapList := <-channels.ConfigMapList.List

	podDetail := toPodDetail(pod, metrics, configMapList, controller)
	return &podDetail, nil
}

// Returns simple info about pods(running, desired, failing, etc.) related to given job.
func getJobPodInfo(client k8sClient.Interface, job *batch.Job) (*common.PodInfo, error) {
	labelSelector := labels.SelectorFromSet(job.Spec.Selector.MatchLabels)
	channels := &common.ResourceChannels{
		PodList: common.GetPodListChannelWithOptions(client, common.NewSameNamespaceQuery(
			job.Namespace),
			api.ListOptions{
				LabelSelector: labelSelector,
				FieldSelector: fields.Everything(),
			}, 1),
	}

	pods := <-channels.PodList.List
	if err := <-channels.PodList.Error; err != nil {
		return nil, err
	}

	podInfo := common.GetPodInfo(job.Status.Active, *job.Spec.Completions, pods.Items)
	return &podInfo, nil
}

func GetHorizontalPodAutoscalerListForResource(client k8sClient.Interface, namespace, kind, name string) (*HorizontalPodAutoscalerList, error) {

	nsQuery := common.NewSameNamespaceQuery(namespace)

	channel := common.GetHorizontalPodAutoscalerListChannel(client, nsQuery, 1)
	hpaList := <-channel.List
	if err := <-channel.Error; err != nil {
		return nil, err
	}

	filteredHpaList := make([]autoscaling.HorizontalPodAutoscaler, 0)
	for _, hpa := range hpaList.Items {
		if hpa.Spec.ScaleTargetRef.Kind == kind && hpa.Spec.ScaleTargetRef.Name == name {
			filteredHpaList = append(filteredHpaList, hpa)
		}
	}

	return createHorizontalPodAutoscalerList(filteredHpaList), nil
}

// Returns simple info about pods(running, desired, failing, etc.) related to given replication
// controller.
func getReplicationControllerPodInfo(client k8sClient.Interface, rc *api.ReplicationController,
	namespace string) (*common.PodInfo, error) {

	labelSelector := labels.SelectorFromSet(rc.Spec.Selector)
	channels := &common.ResourceChannels{
		PodList: common.GetPodListChannelWithOptions(client, common.NewSameNamespaceQuery(namespace),
			api.ListOptions{
				LabelSelector: labelSelector,
				FieldSelector: fields.Everything(),
			}, 1),
	}

	pods := <-channels.PodList.List
	if err := <-channels.PodList.Error; err != nil {
		return nil, err
	}

	podInfo := common.GetPodInfo(rc.Status.Replicas, rc.Spec.Replicas, pods.Items)
	return &podInfo, nil
}

// Returns array of api pods targeting pet set with given name.
func getRawStatefulSetPods(client *k8sClient.Clientset, statefulSetName, namespace string) (
	[]api.Pod, error) {

	statefulSet, err := client.Apps().StatefulSets(namespace).Get(statefulSetName)
	if err != nil {
		return nil, err
	}

	channels := &common.ResourceChannels{
		PodList: common.GetPodListChannel(client, common.NewSameNamespaceQuery(namespace), 1),
	}

	podList := <-channels.PodList.List
	if err := <-channels.PodList.Error; err != nil {
		return nil, err
	}

	matchingPods := common.FilterNamespacedPodsByLabelSelector(podList.Items,
		statefulSet.ObjectMeta.Namespace, statefulSet.Spec.Selector)
	return matchingPods, nil
}

// Returns array of api pods targeting daemon set with given name.
func getRawDaemonSetPods(client k8sClient.Interface, daemonSetName, namespace string) (
	[]api.Pod, error) {

	daemonSet, err := client.Extensions().DaemonSets(namespace).Get(daemonSetName)
	if err != nil {
		return nil, err
	}

	channels := &common.ResourceChannels{
		PodList: common.GetPodListChannel(client, common.NewSameNamespaceQuery(namespace), 1),
	}

	podList := <-channels.PodList.List
	if err := <-channels.PodList.Error; err != nil {
		return nil, err
	}

	matchingPods := common.FilterNamespacedPodsByLabelSelector(podList.Items,
		daemonSet.ObjectMeta.Namespace, daemonSet.Spec.Selector)
	return matchingPods, nil
}

// GetDaemonSetServices returns list of services that are related to daemon set targeted by given
// name.
func GetDaemonSetServices(client client.Interface, dsQuery *dataselect.DataSelectQuery,
	namespace, name string) (*service.ServiceList, error) {

	daemonSet, err := client.Extensions().DaemonSets(namespace).Get(name)
	if err != nil {
		return nil, err
	}

	channels := &common.ResourceChannels{
		ServiceList: common.GetServiceListChannel(client, common.NewSameNamespaceQuery(namespace),
			1),
	}

	services := <-channels.ServiceList.List
	if err := <-channels.ServiceList.Error; err != nil {
		return nil, err
	}

	matchingServices := common.FilterNamespacedServicesBySelector(services.Items, namespace,
		daemonSet.Spec.Selector.MatchLabels)
	return service.CreateServiceList(matchingServices, dsQuery), nil
}

// GetReplicationControllerServices returns list of services that are related to replication
// controller targeted by given name.
func GetReplicationControllerServices(client client.Interface, dsQuery *dataselect.DataSelectQuery,
	namespace, rcName string) (*service.ServiceList, error) {

	replicationController, err := client.ReplicationControllers(namespace).Get(rcName)
	if err != nil {
		return nil, err
	}

	channels := &common.ResourceChannels{
		ServiceList: common.GetServiceListChannel(client, common.NewSameNamespaceQuery(namespace),
			1),
	}

	services := <-channels.ServiceList.List
	if err := <-channels.ServiceList.Error; err != nil {
		return nil, err
	}

	matchingServices := common.FilterNamespacedServicesBySelector(services.Items, namespace,
		replicationController.Spec.Selector)
	return service.CreateServiceList(matchingServices, dsQuery), nil
}