Beispiel #1
0
// GetPodPetSets returns a list of PetSets managing a pod. Returns an error only if no matching PetSets are found.
func (s *StoreToPetSetLister) GetPodPetSets(pod *api.Pod) (psList []apps.PetSet, err error) {
	var selector labels.Selector
	var ps apps.PetSet

	if len(pod.Labels) == 0 {
		err = fmt.Errorf("no PetSets found for pod %v because it has no labels", pod.Name)
		return
	}

	for _, m := range s.Store.List() {
		ps = *m.(*apps.PetSet)
		if ps.Namespace != pod.Namespace {
			continue
		}
		selector, err = unversioned.LabelSelectorAsSelector(ps.Spec.Selector)
		if err != nil {
			err = fmt.Errorf("invalid selector: %v", err)
			return
		}

		// If a PetSet with a nil or empty selector creeps in, it should match nothing, not everything.
		if selector.Empty() || !selector.Matches(labels.Set(pod.Labels)) {
			continue
		}
		psList = append(psList, ps)
	}
	if len(psList) == 0 {
		err = fmt.Errorf("could not find PetSet for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
	}
	return
}
Beispiel #2
0
// GetPodDaemonSets returns a list of daemon sets managing a pod.
// Returns an error if and only if no matching daemon sets are found.
func (s *StoreToDaemonSetLister) GetPodDaemonSets(pod *api.Pod) (daemonSets []extensions.DaemonSet, err error) {
	var selector labels.Selector
	var daemonSet extensions.DaemonSet

	if len(pod.Labels) == 0 {
		err = fmt.Errorf("no daemon sets found for pod %v because it has no labels", pod.Name)
		return
	}

	for _, m := range s.Store.List() {
		daemonSet = *m.(*extensions.DaemonSet)
		if daemonSet.Namespace != pod.Namespace {
			continue
		}
		selector, err = unversioned.LabelSelectorAsSelector(daemonSet.Spec.Selector)
		if err != nil {
			// this should not happen if the DaemonSet passed validation
			return nil, err
		}

		// If a daemonSet with a nil or empty selector creeps in, it should match nothing, not everything.
		if selector.Empty() || !selector.Matches(labels.Set(pod.Labels)) {
			continue
		}
		daemonSets = append(daemonSets, daemonSet)
	}
	if len(daemonSets) == 0 {
		err = fmt.Errorf("could not find daemon set for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
	}
	return
}
Beispiel #3
0
// GetDeploymentsForRC returns a list of deployments managing a replication controller. Returns an error only if no matching deployments are found.
func (s *StoreToDeploymentLister) GetDeploymentsForRC(rc *api.ReplicationController) (deployments []extensions.Deployment, err error) {
	var selector labels.Selector
	var d extensions.Deployment

	if len(rc.Labels) == 0 {
		err = fmt.Errorf("no deployments found for replication controller %v because it has no labels", rc.Name)
		return
	}

	// TODO: MODIFY THIS METHOD so that it checks for the podTemplateSpecHash label
	for _, m := range s.Store.List() {
		d = *m.(*extensions.Deployment)
		if d.Namespace != rc.Namespace {
			continue
		}
		labelSet := labels.Set(d.Spec.Selector)
		selector = labels.Set(d.Spec.Selector).AsSelector()

		// If a deployment with a nil or empty selector creeps in, it should match nothing, not everything.
		if labelSet.AsSelector().Empty() || !selector.Matches(labels.Set(rc.Labels)) {
			continue
		}
		deployments = append(deployments, d)
	}
	if len(deployments) == 0 {
		err = fmt.Errorf("could not find deployments set for replication controller %s in namespace %s with labels: %v", rc.Name, rc.Namespace, rc.Labels)
	}
	return
}
Beispiel #4
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// TODO: Move this back to scheduler as a helper function that takes a Store,
// rather than a method of StoreToServiceLister.
func (s *StoreToServiceLister) GetPodServices(pod *api.Pod) (services []api.Service, err error) {
	var selector labels.Selector
	var service api.Service

	for _, m := range s.Store.List() {
		service = *m.(*api.Service)
		// consider only services that are in the same namespace as the pod
		if service.Namespace != pod.Namespace {
			continue
		}
		if service.Spec.Selector == nil {
			// services with nil selectors match nothing, not everything.
			continue
		}
		selector = labels.Set(service.Spec.Selector).AsSelector()
		if selector.Matches(labels.Set(pod.Labels)) {
			services = append(services, service)
		}
	}
	if len(services) == 0 {
		err = fmt.Errorf("could not find service for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
	}

	return
}
Beispiel #5
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// GetPodReplicaSets returns a list of ReplicaSets managing a pod. Returns an error only if no matching ReplicaSets are found.
func (s *StoreToReplicaSetLister) GetPodReplicaSets(pod *api.Pod) (rss []extensions.ReplicaSet, err error) {
	var selector labels.Selector
	var rs extensions.ReplicaSet

	if len(pod.Labels) == 0 {
		err = fmt.Errorf("no ReplicaSets found for pod %v because it has no labels", pod.Name)
		return
	}

	for _, m := range s.Store.List() {
		rs = *m.(*extensions.ReplicaSet)
		if rs.Namespace != pod.Namespace {
			continue
		}
		selector, err = unversioned.LabelSelectorAsSelector(rs.Spec.Selector)
		if err != nil {
			err = fmt.Errorf("failed to convert pod selector to selector: %v", err)
			return
		}

		// If a ReplicaSet with a nil or empty selector creeps in, it should match nothing, not everything.
		if selector.Empty() || !selector.Matches(labels.Set(pod.Labels)) {
			continue
		}
		rss = append(rss, rs)
	}
	if len(rss) == 0 {
		err = fmt.Errorf("could not find ReplicaSet for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
	}
	return
}
Beispiel #6
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// GetPodJobs returns a list of jobs managing a pod. Returns an error only if no matching jobs are found.
func (s *StoreToJobLister) GetPodJobs(pod *api.Pod) (jobs []extensions.Job, err error) {
	var selector labels.Selector
	var job extensions.Job

	if len(pod.Labels) == 0 {
		err = fmt.Errorf("no jobs found for pod %v because it has no labels", pod.Name)
		return
	}

	for _, m := range s.Store.List() {
		job = *m.(*extensions.Job)
		if job.Namespace != pod.Namespace {
			continue
		}

		selector, _ = unversioned.LabelSelectorAsSelector(job.Spec.Selector)
		if !selector.Matches(labels.Set(pod.Labels)) {
			continue
		}
		jobs = append(jobs, job)
	}
	if len(jobs) == 0 {
		err = fmt.Errorf("could not find jobs for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
	}
	return
}
Beispiel #7
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// GetPodDaemonSets returns a list of daemon sets managing a pod. Returns an error iff no matching daemon sets are found.
func (s *StoreToDaemonSetLister) GetPodDaemonSets(pod *api.Pod) (daemonSets []experimental.DaemonSet, err error) {
	var selector labels.Selector
	var daemonSet experimental.DaemonSet

	if len(pod.Labels) == 0 {
		err = fmt.Errorf("No daemon sets found for pod %v because it has no labels", pod.Name)
		return
	}

	for _, m := range s.Store.List() {
		daemonSet = *m.(*experimental.DaemonSet)
		if daemonSet.Namespace != pod.Namespace {
			continue
		}
		selector = labels.Set(daemonSet.Spec.Selector).AsSelector()

		// If a daemonSet with a nil or empty selector creeps in, it should match nothing, not everything.
		if selector.Empty() || !selector.Matches(labels.Set(pod.Labels)) {
			continue
		}
		daemonSets = append(daemonSets, daemonSet)
	}
	if len(daemonSets) == 0 {
		err = fmt.Errorf("Could not find daemon set for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
	}
	return
}
Beispiel #8
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// Match parses the selectors and adds the target as a parent if the selector matches.
func match(selector labels.Selector, topology, id string) func(labelledChild) {
	return func(c labelledChild) {
		if selector.Matches(labels.Set(c.Labels())) {
			c.AddParent(topology, id)
		}
	}
}
Beispiel #9
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// List all the deploymentconfigs that match the provided selector using a namespace index.
// If the indexed list fails then we will fallback to listing from all namespaces and filter
// by the namespace we want.
func (s storeDeploymentConfigsNamespacer) List(selector labels.Selector) ([]*deployapi.DeploymentConfig, error) {
	configs := []*deployapi.DeploymentConfig{}

	if s.namespace == kapi.NamespaceAll {
		for _, obj := range s.indexer.List() {
			dc := obj.(*deployapi.DeploymentConfig)
			if selector.Matches(labels.Set(dc.Labels)) {
				configs = append(configs, dc)
			}
		}
		return configs, nil
	}

	items, err := s.indexer.ByIndex(cache.NamespaceIndex, s.namespace)
	if err != nil {
		return nil, err
	}
	for _, obj := range items {
		dc := obj.(*deployapi.DeploymentConfig)
		if selector.Matches(labels.Set(dc.Labels)) {
			configs = append(configs, dc)
		}
	}
	return configs, nil
}
Beispiel #10
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// Add a new selector to the aggregator. New values on the output channel may not appear
// right away.
func (c *consulAggregator) Watch(selector labels.Selector, quitCh <-chan struct{}) chan []Labeled {
	resCh := make(chan []Labeled, 1) // this buffer is useful in sendMatches(), below
	select {
	case <-c.aggregatorQuit:
		c.logger.WithField("selector", selector.String()).Warnln("New selector added after aggregator was closed")
		close(resCh)
		return resCh
	default:
	}
	c.watcherLock.Lock()
	defer c.watcherLock.Unlock()
	watch := &selectorWatch{
		selector: selector,
		resultCh: resCh,
	}
	if c.watchers == nil {
		c.watchers = watch
	} else {
		c.watchers.append(watch)
	}
	if c.labeledCache != nil {
		c.sendMatches(watch)
	}
	go func() {
		select {
		case <-quitCh:
		case <-c.aggregatorQuit:
		}
		c.removeWatch(watch)
	}()
	c.metWatchCount.Update(int64(c.watchers.len()))
	return watch.resultCh
}
Beispiel #11
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// List all the image streams that match the provided selector using a namespace index.
// If the indexed list fails then we will fallback to listing from all namespaces and filter
// by the namespace we want.
func (s storeImageStreamsNamespacer) List(selector labels.Selector) ([]*imageapi.ImageStream, error) {
	streams := []*imageapi.ImageStream{}

	if s.namespace == kapi.NamespaceAll {
		for _, obj := range s.indexer.List() {
			stream := obj.(*imageapi.ImageStream)
			if selector.Matches(labels.Set(stream.Labels)) {
				streams = append(streams, stream)
			}
		}
		return streams, nil
	}

	items, err := s.indexer.ByIndex(cache.NamespaceIndex, s.namespace)
	if err != nil {
		return nil, err
	}
	for _, obj := range items {
		stream := obj.(*imageapi.ImageStream)
		if selector.Matches(labels.Set(stream.Labels)) {
			streams = append(streams, stream)
		}
	}
	return streams, nil
}
Beispiel #12
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// GetPodControllers returns a list of jobs managing a pod. Returns an error only if no matching jobs are found.
func (s *StoreToJobLister) GetPodJobs(pod *api.Pod) (jobs []extensions.Job, err error) {
	var selector labels.Selector
	var job extensions.Job

	if len(pod.Labels) == 0 {
		err = fmt.Errorf("No jobs found for pod %v because it has no labels", pod.Name)
		return
	}

	for _, m := range s.Store.List() {
		job = *m.(*extensions.Job)
		if job.Namespace != pod.Namespace {
			continue
		}
		labelSet := labels.Set(job.Spec.Selector)
		selector = labels.Set(job.Spec.Selector).AsSelector()

		// Job with a nil or empty selector match nothing
		if labelSet.AsSelector().Empty() || !selector.Matches(labels.Set(pod.Labels)) {
			continue
		}
		jobs = append(jobs, job)
	}
	if len(jobs) == 0 {
		err = fmt.Errorf("Could not find jobs for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
	}
	return
}
// List all the ServiceAccounts that match the provided selector using a namespace index.
// If the indexed list fails then we will fallback to listing from all namespaces and filter
// by the namespace we want.
func (s storeServiceAccountsNamespacer) List(selector labels.Selector) ([]*kapi.ServiceAccount, error) {
	serviceAccounts := []*kapi.ServiceAccount{}

	if s.namespace == kapi.NamespaceAll {
		for _, obj := range s.indexer.List() {
			bc := obj.(*kapi.ServiceAccount)
			if selector.Matches(labels.Set(bc.Labels)) {
				serviceAccounts = append(serviceAccounts, bc)
			}
		}
		return serviceAccounts, nil
	}

	items, err := s.indexer.ByIndex(cache.NamespaceIndex, s.namespace)
	if err != nil {
		return nil, err
	}
	for _, obj := range items {
		bc := obj.(*kapi.ServiceAccount)
		if selector.Matches(labels.Set(bc.Labels)) {
			serviceAccounts = append(serviceAccounts, bc)
		}
	}
	return serviceAccounts, nil
}
Beispiel #14
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func (c *consulApplicator) GetMatches(selector labels.Selector, labelType Type, cachedMatch bool) ([]Labeled, error) {

	var allLabeled []Labeled

	if cachedMatch {
		aggregator := c.initAggregator(labelType)
		cache, err := aggregator.getCache()
		if err == nil {
			allLabeled = cache
		} else {
			c.logger.Warnln("Cache was empty on query, falling back to direct Consul query")
		}
	}
	var err error
	if len(allLabeled) == 0 {
		allLabeled, err = c.ListLabels(labelType)
		if err != nil {
			return nil, err
		}
	}

	res := []Labeled{}
	for _, l := range allLabeled {
		if selector.Matches(l.Labels) {
			res = append(res, l)
		}
	}
	return res, nil
}
Beispiel #15
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func (cli *HeapsterMetricsClient) GetPodMetrics(namespace string, podName string, allNamespaces bool, selector labels.Selector) ([]metrics_api.PodMetrics, error) {
	if allNamespaces {
		namespace = api.NamespaceAll
	}
	path, err := podMetricsUrl(namespace, podName)
	if err != nil {
		return []metrics_api.PodMetrics{}, err
	}

	params := map[string]string{"labelSelector": selector.String()}
	allMetrics := make([]metrics_api.PodMetrics, 0)

	resultRaw, err := GetHeapsterMetrics(cli, path, params)
	if err != nil {
		return []metrics_api.PodMetrics{}, err
	}
	if len(podName) == 0 {
		metrics := metrics_api.PodMetricsList{}
		err = json.Unmarshal(resultRaw, &metrics)
		if err != nil {
			return []metrics_api.PodMetrics{}, fmt.Errorf("failed to unmarshall heapster response: %v", err)
		}
		allMetrics = append(allMetrics, metrics.Items...)
	} else {
		var singleMetric metrics_api.PodMetrics
		err = json.Unmarshal(resultRaw, &singleMetric)
		if err != nil {
			return []metrics_api.PodMetrics{}, fmt.Errorf("failed to unmarshall heapster response: %v", err)
		}
		allMetrics = append(allMetrics, singleMetric)
	}
	return allMetrics, nil
}
Beispiel #16
0
Datei: main.go Projekt: rudle/p2
func parseNodeSelectorWithPrompt(
	oldSelector klabels.Selector,
	newSelectorString string,
	applicator labels.Applicator,
) (klabels.Selector, error) {
	newSelector, err := parseNodeSelector(newSelectorString)
	if err != nil {
		return newSelector, err
	}
	if oldSelector.String() == newSelector.String() {
		return newSelector, nil
	}

	newNodeLabels, err := applicator.GetMatches(newSelector, labels.NODE, false)
	if err != nil {
		return newSelector, util.Errorf("Error getting matching labels: %v", err)
	}

	oldNodeLabels, err := applicator.GetMatches(oldSelector, labels.NODE, false)
	if err != nil {
		return newSelector, util.Errorf("Error getting matching labels: %v", err)
	}

	toRemove, toAdd := makeNodeChanges(oldNodeLabels, newNodeLabels)

	fmt.Printf("Changing deployment from '%v' to '%v':\n", oldSelector.String(), newSelectorString)
	fmt.Printf("Removing:%9s hosts %s\n", fmt.Sprintf("-%v", len(toRemove)), toRemove)
	fmt.Printf("Adding:  %9s hosts %s\n", fmt.Sprintf("+%v", len(toAdd)), toAdd)
	fmt.Println("Continue?")
	if !confirm() {
		return newSelector, util.Errorf("User cancelled")
	}

	return newSelector, nil
}
Beispiel #17
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func (cli *HeapsterMetricsClient) GetNodeMetrics(nodeName string, selector labels.Selector) ([]metrics_api.NodeMetrics, error) {
	params := map[string]string{"labelSelector": selector.String()}
	path, err := nodeMetricsUrl(nodeName)
	if err != nil {
		return []metrics_api.NodeMetrics{}, err
	}
	resultRaw, err := GetHeapsterMetrics(cli, path, params)
	if err != nil {
		return []metrics_api.NodeMetrics{}, err
	}
	metrics := make([]metrics_api.NodeMetrics, 0)
	if len(nodeName) == 0 {
		metricsList := metrics_api.NodeMetricsList{}
		err = json.Unmarshal(resultRaw, &metricsList)
		if err != nil {
			return []metrics_api.NodeMetrics{}, fmt.Errorf("failed to unmarshall heapster response: %v", err)
		}
		metrics = append(metrics, metricsList.Items...)
	} else {
		var singleMetric metrics_api.NodeMetrics
		err = json.Unmarshal(resultRaw, &singleMetric)
		if err != nil {
			return []metrics_api.NodeMetrics{}, fmt.Errorf("failed to unmarshall heapster response: %v", err)
		}
		metrics = append(metrics, singleMetric)
	}
	return metrics, nil
}
Beispiel #18
0
// MatchPod returns a generic matcher for a given label and field selector.
func MatchPod(label labels.Selector, field fields.Selector) generic.Matcher {
	return &generic.SelectionPredicate{
		Label: label,
		Field: field,
		GetAttrs: func(obj runtime.Object) (labels.Set, fields.Set, error) {
			pod, ok := obj.(*api.Pod)
			if !ok {
				return nil, nil, fmt.Errorf("not a pod")
			}

			// podLabels is already sitting there ready to be used.
			// podFields is not available directly and requires allocation of a map.
			// Only bother if the fields might be useful to determining the match.
			// One common case is for a replication controller to set up a watch
			// based on labels alone; in that case we can avoid allocating the field map.
			// This is especially important in the apiserver.
			podLabels := labels.Set(pod.ObjectMeta.Labels)
			var podFields fields.Set
			if !field.Empty() && label.Matches(podLabels) {
				podFields = PodToSelectableFields(pod)
			}
			return podLabels, podFields, nil
		},
		IndexFields: []string{"spec.nodeName"},
	}
}
Beispiel #19
0
// GetPodControllers returns a list of replication controllers managing a pod. Returns an error only if no matching controllers are found.
func (s *StoreToReplicationControllerLister) GetPodControllers(pod *api.Pod) (controllers []api.ReplicationController, err error) {
	var selector labels.Selector
	var rc api.ReplicationController

	if len(pod.Labels) == 0 {
		err = fmt.Errorf("no controllers found for pod %v because it has no labels", pod.Name)
		return
	}

	key := &api.ReplicationController{ObjectMeta: api.ObjectMeta{Namespace: pod.Namespace}}
	items, err := s.Indexer.Index(NamespaceIndex, key)
	if err != nil {
		return
	}

	for _, m := range items {
		rc = *m.(*api.ReplicationController)
		selector = labels.Set(rc.Spec.Selector).AsSelectorPreValidated()

		// If an rc with a nil or empty selector creeps in, it should match nothing, not everything.
		if selector.Empty() || !selector.Matches(labels.Set(pod.Labels)) {
			continue
		}
		controllers = append(controllers, rc)
	}
	if len(controllers) == 0 {
		err = fmt.Errorf("could not find controller for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
	}
	return
}
Beispiel #20
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// GetPodControllers returns a list of replication controllers managing a pod. Returns an error only if no matching controllers are found.
func (s *StoreToReplicationControllerLister) GetPodControllers(pod *api.Pod) (controllers []api.ReplicationController, err error) {
	var selector labels.Selector
	var rc api.ReplicationController

	if len(pod.Labels) == 0 {
		err = fmt.Errorf("no controllers found for pod %v because it has no labels", pod.Name)
		return
	}

	for _, m := range s.Store.List() {
		rc = *m.(*api.ReplicationController)
		if rc.Namespace != pod.Namespace {
			continue
		}
		labelSet := labels.Set(rc.Spec.Selector)
		selector = labels.Set(rc.Spec.Selector).AsSelector()

		// If an rc with a nil or empty selector creeps in, it should match nothing, not everything.
		if labelSet.AsSelector().Empty() || !selector.Matches(labels.Set(pod.Labels)) {
			continue
		}
		controllers = append(controllers, rc)
	}
	if len(controllers) == 0 {
		err = fmt.Errorf("could not find controller for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
	}
	return
}
Beispiel #21
0
// GetPodPodDisruptionBudgets returns a list of PodDisruptionBudgets matching a pod.  Returns an error only if no matching PodDisruptionBudgets are found.
func (s *StoreToPodDisruptionBudgetLister) GetPodPodDisruptionBudgets(pod *api.Pod) (pdbList []policy.PodDisruptionBudget, err error) {
	var selector labels.Selector

	if len(pod.Labels) == 0 {
		err = fmt.Errorf("no PodDisruptionBudgets found for pod %v because it has no labels", pod.Name)
		return
	}

	for _, m := range s.Store.List() {
		pdb, ok := m.(*policy.PodDisruptionBudget)
		if !ok {
			glog.Errorf("Unexpected: %v is not a PodDisruptionBudget", m)
			continue
		}
		if pdb.Namespace != pod.Namespace {
			continue
		}
		selector, err = unversioned.LabelSelectorAsSelector(pdb.Spec.Selector)
		if err != nil {
			glog.Warningf("invalid selector: %v", err)
			// TODO(mml): add an event to the PDB
			continue
		}

		// If a PDB with a nil or empty selector creeps in, it should match nothing, not everything.
		if selector.Empty() || !selector.Matches(labels.Set(pod.Labels)) {
			continue
		}
		pdbList = append(pdbList, *pdb)
	}
	if len(pdbList) == 0 {
		err = fmt.Errorf("could not find PodDisruptionBudget for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
	}
	return
}
Beispiel #22
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// List returns []*api.Pod matching a query.
func (f FakePodLister) List(s labels.Selector) (selected []*api.Pod, err error) {
	for _, pod := range f {
		if s.Matches(labels.Set(pod.Labels)) {
			selected = append(selected, pod)
		}
	}
	return selected, nil
}
Beispiel #23
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func (p PodsToCache) List(s labels.Selector) (selected []*api.Pod, err error) {
	for _, pod := range p {
		if s.Matches(labels.Set(pod.Labels)) {
			selected = append(selected, pod)
		}
	}
	return selected, nil
}
Beispiel #24
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// MatchAutoscaler returns a generic matcher for a given label and field selector.
func MatchAutoscaler(label labels.Selector, field fields.Selector) generic.Matcher {
	return generic.MatcherFunc(func(obj runtime.Object) (bool, error) {
		autoscaler, ok := obj.(*expapi.HorizontalPodAutoscaler)
		if !ok {
			return false, fmt.Errorf("not a horizontal pod autoscaler")
		}
		return label.Matches(labels.Set(autoscaler.Labels)), nil
	})
}
Beispiel #25
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// Matcher returns a generic matcher for a given label and field selector.
func Matcher(label labels.Selector, field fields.Selector) generic.Matcher {
	return generic.MatcherFunc(func(obj runtime.Object) (bool, error) {
		subnet, ok := obj.(*api.HostSubnet)
		if !ok {
			return false, fmt.Errorf("not a HostSubnet")
		}
		return label.Matches(labels.Set(subnet.Labels)) && field.Matches(api.HostSubnetToSelectableFields(subnet)), nil
	})
}
Beispiel #26
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// Matcher returns a generic matcher for a given label and field selector.
func Matcher(label labels.Selector, field fields.Selector) generic.Matcher {
	return generic.MatcherFunc(func(obj runtime.Object) (bool, error) {
		ns, ok := obj.(*api.NetNamespace)
		if !ok {
			return false, fmt.Errorf("not a NetNamespace")
		}
		return label.Matches(labels.Set(ns.Labels)) && field.Matches(api.NetNamespaceToSelectableFields(ns)), nil
	})
}
Beispiel #27
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// Please note that selector is filtering among the pods that have gotten into
// the store; there may have been some filtering that already happened before
// that.
// We explicitly don't return api.PodList, to avoid expensive allocations, which
// in most cases are unnecessary.
func (s *StoreToPodLister) List(selector labels.Selector) (pods []*api.Pod, err error) {
	for _, m := range s.Indexer.List() {
		pod := m.(*api.Pod)
		if selector.Matches(labels.Set(pod.Labels)) {
			pods = append(pods, pod)
		}
	}
	return pods, nil
}
Beispiel #28
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// Matcher returns a generic matcher for a given label and field selector.
func Matcher(label labels.Selector, field fields.Selector) generic.Matcher {
	return generic.MatcherFunc(func(obj runtime.Object) (bool, error) {
		o, ok := obj.(*api.Template)
		if !ok {
			return false, fmt.Errorf("not a pod")
		}
		return label.Matches(labels.Set(o.Labels)) && field.Matches(api.TemplateToSelectableFields(o)), nil
	})
}
Beispiel #29
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// MatchPodTemplate returns a generic matcher for a given label and field selector.
func MatchPodTemplate(label labels.Selector, field fields.Selector) generic.Matcher {
	return generic.MatcherFunc(func(obj runtime.Object) (bool, error) {
		podObj, ok := obj.(*api.PodTemplate)
		if !ok {
			return false, fmt.Errorf("not a pod template")
		}
		return label.Matches(labels.Set(podObj.Labels)), nil
	})
}
Beispiel #30
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// Matcher returns a generic matcher for a given label and field selector.
func Matcher(label labels.Selector, field fields.Selector) generic.Matcher {
	return generic.MatcherFunc(func(obj runtime.Object) (bool, error) {
		sa, ok := obj.(*certificates.CertificateSigningRequest)
		if !ok {
			return false, fmt.Errorf("not a CertificateSigningRequest")
		}
		fields := SelectableFields(sa)
		return label.Matches(labels.Set(sa.Labels)) && field.Matches(fields), nil
	})
}