// ValidateDaemonSetSpec tests if required fields in the DaemonSetSpec are set.
func ValidateDaemonSetSpec(spec *extensions.DaemonSetSpec) errs.ValidationErrorList {
allErrs := errs.ValidationErrorList{}
selector := labels.Set(spec.Selector).AsSelector()
if selector.Empty() {
allErrs = append(allErrs, errs.NewFieldRequired("selector"))
}
if spec.Template == nil {
allErrs = append(allErrs, errs.NewFieldRequired("template"))
} else {
labels := labels.Set(spec.Template.Labels)
if !selector.Matches(labels) {
allErrs = append(allErrs, errs.NewFieldInvalid("template.metadata.labels", spec.Template.Labels, "selector does not match template"))
}
allErrs = append(allErrs, apivalidation.ValidatePodTemplateSpec(spec.Template).Prefix("template")...)
// Daemons typically run on more than one node, so mark Read-Write persistent disks as invalid.
allErrs = append(allErrs, apivalidation.ValidateReadOnlyPersistentDisks(spec.Template.Spec.Volumes).Prefix("template.spec.volumes")...)
// RestartPolicy has already been first-order validated as per ValidatePodTemplateSpec().
if spec.Template.Spec.RestartPolicy != api.RestartPolicyAlways {
allErrs = append(allErrs, errs.NewFieldValueNotSupported("template.spec.restartPolicy", spec.Template.Spec.RestartPolicy, []string{string(api.RestartPolicyAlways)}))
}
}
return allErrs
}
// 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 daemon set for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
}
return
}
// 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 = 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
}
// 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
}
func MappingTypeForPod(pod *api.Pod) HostPortMappingType {
filter := map[string]string{
PortMappingLabelKey: string(HostPortMappingFixed),
}
selector := labels.Set(filter).AsSelector()
if selector.Matches(labels.Set(pod.Labels)) {
return HostPortMappingFixed
}
return HostPortMappingWildcard
}
// getOverlappingControllers finds rcs that this controller overlaps, as well as rcs overlapping this controller.
func getOverlappingControllers(c client.ReplicationControllerInterface, rc *api.ReplicationController) ([]api.ReplicationController, error) {
rcs, err := c.List(labels.Everything(), fields.Everything())
if err != nil {
return nil, fmt.Errorf("error getting replication controllers: %v", err)
}
var matchingRCs []api.ReplicationController
rcLabels := labels.Set(rc.Spec.Selector)
for _, controller := range rcs.Items {
newRCLabels := labels.Set(controller.Spec.Selector)
if labels.SelectorFromSet(newRCLabels).Matches(rcLabels) || labels.SelectorFromSet(rcLabels).Matches(newRCLabels) {
matchingRCs = append(matchingRCs, controller)
}
}
return matchingRCs, nil
}
func (h *HeapsterMetricsClient) GetResourceConsumptionAndRequest(resourceName api.ResourceName, namespace string, selector map[string]string) (consumption *ResourceConsumption, request *resource.Quantity, timestamp time.Time, err error) {
podList, err := h.client.Pods(namespace).
List(labels.SelectorFromSet(labels.Set(selector)), fields.Everything())
if err != nil {
return nil, nil, time.Time{}, fmt.Errorf("failed to get pod list: %v", err)
}
podNames := []string{}
sum := resource.MustParse("0")
missing := false
for _, pod := range podList.Items {
podNames = append(podNames, pod.Name)
for _, container := range pod.Spec.Containers {
containerRequest := container.Resources.Requests[resourceName]
if containerRequest.Amount != nil {
sum.Add(containerRequest)
} else {
missing = true
}
}
}
if missing || sum.Cmp(resource.MustParse("0")) == 0 {
return nil, nil, time.Time{}, fmt.Errorf("some pods do not have request for %s", resourceName)
}
glog.Infof("Sum of %s requested: %v", resourceName, sum)
avg := resource.MustParse(fmt.Sprintf("%dm", sum.MilliValue()/int64(len(podList.Items))))
request = &avg
consumption, timestamp, err = h.getForPods(resourceName, namespace, podNames)
if err != nil {
return nil, nil, time.Time{}, err
}
return consumption, request, timestamp, nil
}
func (t *Tester) testListMatchLabels(obj runtime.Object, assignFn AssignFunc) {
ctx := t.TestContext()
testLabels := map[string]string{"key": "value"}
foo1 := copyOrDie(obj)
t.setObjectMeta(foo1, "foo1")
foo2 := copyOrDie(obj)
foo2Meta := t.getObjectMetaOrFail(foo2)
foo2Meta.Name = "foo2"
foo2Meta.Namespace = api.NamespaceValue(ctx)
foo2Meta.Labels = testLabels
existing := assignFn([]runtime.Object{foo1, foo2})
filtered := []runtime.Object{existing[1]}
selector := labels.SelectorFromSet(labels.Set(testLabels))
listObj, err := t.storage.(rest.Lister).List(ctx, selector, fields.Everything())
if err != nil {
t.Errorf("unexpected error: %v", err)
}
items, err := listToItems(listObj)
if err != nil {
t.Errorf("unexpected error: %v", err)
}
if len(items) != len(filtered) {
t.Errorf("unexpected number of items: %v", len(items))
}
if !api.Semantic.DeepEqual(filtered, items) {
t.Errorf("expected: %#v, got: %#v", filtered, items)
}
}
func verifyExpectedRcsExistAndGetExpectedPods(c *client.Client) ([]string, error) {
expectedPods := []string{}
// Iterate over the labels that identify the replication controllers that we
// want to check. The rcLabels contains the value values for the k8s-app key
// that identify the replication controllers that we want to check. Using a label
// rather than an explicit name is preferred because the names will typically have
// a version suffix e.g. heapster-monitoring-v1 and this will change after a rolling
// update e.g. to heapster-monitoring-v2. By using a label query we can check for the
// situaiton when a heapster-monitoring-v1 and heapster-monitoring-v2 replication controller
// is running (which would be an error except during a rolling update).
for _, rcLabel := range rcLabels {
rcList, err := c.ReplicationControllers(api.NamespaceSystem).List(labels.Set{"k8s-app": rcLabel}.AsSelector())
if err != nil {
return nil, err
}
if len(rcList.Items) != 1 {
return nil, fmt.Errorf("expected to find one replica for RC with label %s but got %d",
rcLabel, len(rcList.Items))
}
for _, rc := range rcList.Items {
podList, err := c.Pods(api.NamespaceSystem).List(labels.Set(rc.Spec.Selector).AsSelector(), fields.Everything())
if err != nil {
return nil, err
}
for _, pod := range podList.Items {
if pod.DeletionTimestamp != nil {
continue
}
expectedPods = append(expectedPods, string(pod.UID))
}
}
}
return expectedPods, nil
}
func checkDaemonPodOnNodes(f *Framework, selector map[string]string, nodeNames []string) func() (bool, error) {
return func() (bool, error) {
podList, err := f.Client.Pods(f.Namespace.Name).List(labels.Set(selector).AsSelector(), fields.Everything())
if err != nil {
return false, nil
}
pods := podList.Items
nodesToPodCount := make(map[string]int)
for _, pod := range pods {
nodesToPodCount[pod.Spec.NodeName] += 1
}
// Ensure that exactly 1 pod is running on all nodes in nodeNames.
for _, nodeName := range nodeNames {
if nodesToPodCount[nodeName] != 1 {
return false, nil
}
}
// Ensure that sizes of the lists are the same. We've verified that every element of nodeNames is in
// nodesToPodCount, so verifying the lengths are equal ensures that there aren't pods running on any
// other nodes.
return len(nodesToPodCount) == len(nodeNames), nil
}
}
func PodMatchesNodeLabels(pod *api.Pod, node *api.Node) bool {
if len(pod.Spec.NodeSelector) == 0 {
return true
}
selector := labels.SelectorFromSet(pod.Spec.NodeSelector)
return selector.Matches(labels.Set(node.Labels))
}
// pollForReadyPods polls oldRc and newRc each interval and returns the old
// and new ready counts for their pods. If a pod is observed as being ready,
// it's considered ready even if it later becomes notReady.
func (r *RollingUpdater) pollForReadyPods(interval, timeout time.Duration, oldRc, newRc *api.ReplicationController) (int, int, error) {
controllers := []*api.ReplicationController{oldRc, newRc}
oldReady := 0
newReady := 0
err := wait.Poll(interval, timeout, func() (done bool, err error) {
anyReady := false
for _, controller := range controllers {
selector := labels.Set(controller.Spec.Selector).AsSelector()
pods, err := r.c.Pods(controller.Namespace).List(selector, fields.Everything())
if err != nil {
return false, err
}
for _, pod := range pods.Items {
if api.IsPodReady(&pod) {
switch controller.Name {
case oldRc.Name:
oldReady++
case newRc.Name:
newReady++
}
anyReady = true
}
}
}
if anyReady {
return true, nil
}
return false, nil
})
return oldReady, newReady, err
}
// 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
}
selector, _ = extensions.PodSelectorAsSelector(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
}
// Returns the old RCs targetted by the given Deployment.
func GetOldRCs(deployment extensions.Deployment, c client.Interface) ([]*api.ReplicationController, error) {
namespace := deployment.ObjectMeta.Namespace
// 1. Find all pods whose labels match deployment.Spec.Selector
podList, err := c.Pods(namespace).List(labels.SelectorFromSet(deployment.Spec.Selector), fields.Everything())
if err != nil {
return nil, fmt.Errorf("error listing pods: %v", err)
}
// 2. Find the corresponding RCs for pods in podList.
// TODO: Right now we list all RCs and then filter. We should add an API for this.
oldRCs := map[string]api.ReplicationController{}
rcList, err := c.ReplicationControllers(namespace).List(labels.Everything())
if err != nil {
return nil, fmt.Errorf("error listing replication controllers: %v", err)
}
for _, pod := range podList.Items {
podLabelsSelector := labels.Set(pod.ObjectMeta.Labels)
for _, rc := range rcList.Items {
rcLabelsSelector := labels.SelectorFromSet(rc.Spec.Selector)
if rcLabelsSelector.Matches(podLabelsSelector) {
// Filter out RC that has the same pod template spec as the deployment - that is the new RC.
if api.Semantic.DeepEqual(rc.Spec.Template, GetNewRCTemplate(deployment)) {
continue
}
oldRCs[rc.ObjectMeta.Name] = rc
}
}
}
requiredRCs := []*api.ReplicationController{}
for _, value := range oldRCs {
requiredRCs = append(requiredRCs, &value)
}
return requiredRCs, nil
}
func ValidateJobSpec(spec *extensions.JobSpec) errs.ValidationErrorList {
allErrs := errs.ValidationErrorList{}
if spec.Parallelism != nil {
allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(*spec.Parallelism), "parallelism")...)
}
if spec.Completions != nil {
allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(*spec.Completions), "completions")...)
}
if spec.Selector == nil {
allErrs = append(allErrs, errs.NewFieldRequired("selector"))
} else {
allErrs = append(allErrs, ValidatePodSelector(spec.Selector).Prefix("selector")...)
}
if selector, err := extensions.PodSelectorAsSelector(spec.Selector); err == nil {
labels := labels.Set(spec.Template.Labels)
if !selector.Matches(labels) {
allErrs = append(allErrs, errs.NewFieldInvalid("template.metadata.labels", spec.Template.Labels, "selector does not match template"))
}
}
allErrs = append(allErrs, apivalidation.ValidatePodTemplateSpec(&spec.Template).Prefix("template")...)
if spec.Template.Spec.RestartPolicy != api.RestartPolicyOnFailure &&
spec.Template.Spec.RestartPolicy != api.RestartPolicyNever {
allErrs = append(allErrs, errs.NewFieldValueNotSupported("template.spec.restartPolicy",
spec.Template.Spec.RestartPolicy, []string{string(api.RestartPolicyOnFailure), string(api.RestartPolicyNever)}))
}
return allErrs
}
func podsCreated(c *client.Client, ns, name string, replicas int) (*api.PodList, error) {
timeout := 2 * time.Minute
// List the pods, making sure we observe all the replicas.
label := labels.SelectorFromSet(labels.Set(map[string]string{"name": name}))
for start := time.Now(); time.Since(start) < timeout; time.Sleep(5 * time.Second) {
pods, err := c.Pods(ns).List(label, fields.Everything())
if err != nil {
return nil, err
}
created := []api.Pod{}
for _, pod := range pods.Items {
if pod.DeletionTimestamp != nil {
continue
}
created = append(created, pod)
}
Logf("Pod name %s: Found %d pods out of %d", name, len(created), replicas)
if len(created) == replicas {
pods.Items = created
return pods, nil
}
}
return nil, fmt.Errorf("Pod name %s: Gave up waiting %v for %d pods to come up", name, timeout, replicas)
}
// CalculateNodeLabelPriority checks whether a particular label exists on a node or not, regardless of its value.
// If presence is true, prioritizes nodes that have the specified label, regardless of value.
// If presence is false, prioritizes nodes that do not have the specified label.
func (n *NodeLabelPrioritizer) CalculateNodeLabelPriority(pod *api.Pod, podLister algorithm.PodLister, nodeLister algorithm.NodeLister) (algorithm.HostPriorityList, error) {
var score int
nodes, err := nodeLister.List()
if err != nil {
return nil, err
}
labeledNodes := map[string]bool{}
for _, node := range nodes.Items {
exists := labels.Set(node.Labels).Has(n.label)
labeledNodes[node.Name] = (exists && n.presence) || (!exists && !n.presence)
}
result := []algorithm.HostPriority{}
//score int - scale of 0-10
// 0 being the lowest priority and 10 being the highest
for nodeName, success := range labeledNodes {
if success {
score = 10
} else {
score = 0
}
result = append(result, algorithm.HostPriority{Host: nodeName, Score: score})
}
return result, nil
}
// 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
}
// GetPodControllers gets the ReplicationControllers that have the selector that match the labels on the given pod
func (f FakeControllerLister) GetPodControllers(pod *api.Pod) (controllers []api.ReplicationController, err error) {
var selector labels.Selector
for _, controller := range f {
if controller.Namespace != pod.Namespace {
continue
}
selector = labels.Set(controller.Spec.Selector).AsSelector()
if selector.Matches(labels.Set(pod.Labels)) {
controllers = append(controllers, controller)
}
}
if len(controllers) == 0 {
err = fmt.Errorf("Could not find Replication Controller for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
}
return
}
// syncReplicationController will sync the rc with the given key if it has had its expectations fulfilled, meaning
// it did not expect to see any more of its pods created or deleted. This function is not meant to be invoked
// concurrently with the same key.
func (rm *ReplicationManager) syncReplicationController(key string) error {
startTime := time.Now()
defer func() {
glog.V(4).Infof("Finished syncing controller %q (%v)", key, time.Now().Sub(startTime))
}()
obj, exists, err := rm.rcStore.Store.GetByKey(key)
if !exists {
glog.Infof("Replication Controller has been deleted %v", key)
rm.expectations.DeleteExpectations(key)
return nil
}
if err != nil {
glog.Infof("Unable to retrieve rc %v from store: %v", key, err)
rm.queue.Add(key)
return err
}
rc := *obj.(*api.ReplicationController)
if !rm.podStoreSynced() {
// Sleep so we give the pod reflector goroutine a chance to run.
time.Sleep(PodStoreSyncedPollPeriod)
glog.Infof("Waiting for pods controller to sync, requeuing rc %v", rc.Name)
rm.enqueueController(&rc)
return nil
}
// Check the expectations of the rc before counting active pods, otherwise a new pod can sneak in
// and update the expectations after we've retrieved active pods from the store. If a new pod enters
// the store after we've checked the expectation, the rc sync is just deferred till the next relist.
rcKey, err := controller.KeyFunc(&rc)
if err != nil {
glog.Errorf("Couldn't get key for replication controller %#v: %v", rc, err)
return err
}
rcNeedsSync := rm.expectations.SatisfiedExpectations(rcKey)
podList, err := rm.podStore.Pods(rc.Namespace).List(labels.Set(rc.Spec.Selector).AsSelector())
if err != nil {
glog.Errorf("Error getting pods for rc %q: %v", key, err)
rm.queue.Add(key)
return err
}
// TODO: Do this in a single pass, or use an index.
filteredPods := controller.FilterActivePods(podList.Items)
if rcNeedsSync {
rm.manageReplicas(filteredPods, &rc)
}
// Always updates status as pods come up or die.
if err := updateReplicaCount(rm.kubeClient.ReplicationControllers(rc.Namespace), rc, len(filteredPods)); err != nil {
// Multiple things could lead to this update failing. Requeuing the controller ensures
// we retry with some fairness.
glog.V(2).Infof("Failed to update replica count for controller %v, requeuing", rc.Name)
rm.enqueueController(&rc)
}
return nil
}
// MatchPersistentVolumeClaim returns a generic matcher for a given label and field selector.
func MatchPersistentVolumeClaim(label labels.Selector, field fields.Selector) generic.Matcher {
return generic.MatcherFunc(func(obj runtime.Object) (bool, error) {
persistentvolumeclaimObj, ok := obj.(*api.PersistentVolumeClaim)
if !ok {
return false, fmt.Errorf("not a persistentvolumeclaim")
}
fields := PersistentVolumeClaimToSelectableFields(persistentvolumeclaimObj)
return label.Matches(labels.Set(persistentvolumeclaimObj.Labels)) && field.Matches(fields), nil
})
}
// GetPodServices gets the services that have the selector that match the labels on the given pod
func (f FakeServiceLister) GetPodServices(pod *api.Pod) (services []api.Service, err error) {
var selector labels.Selector
for _, service := range f {
// consider only services that are in the same namespace as the pod
if service.Namespace != pod.Namespace {
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
}
// 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.(*api.ServiceAccount)
if !ok {
return false, fmt.Errorf("not a serviceaccount")
}
fields := SelectableFields(sa)
return label.Matches(labels.Set(sa.Labels)) && field.Matches(fields), nil
})
}
// MatchNamespace returns a generic matcher for a given label and field selector.
func MatchNamespace(label labels.Selector, field fields.Selector) generic.Matcher {
return generic.MatcherFunc(func(obj runtime.Object) (bool, error) {
namespaceObj, ok := obj.(*api.Namespace)
if !ok {
return false, fmt.Errorf("not a namespace")
}
fields := NamespaceToSelectableFields(namespaceObj)
return label.Matches(labels.Set(namespaceObj.Labels)) && field.Matches(fields), nil
})
}
// 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.(*extensions.ThirdPartyResource)
if !ok {
return false, fmt.Errorf("not a ThirdPartyResource")
}
fields := SelectableFields(sa)
return label.Matches(labels.Set(sa.Labels)) && field.Matches(fields), nil
})
}
// MatchResourceQuota returns a generic matcher for a given label and field selector.
func MatchResourceQuota(label labels.Selector, field fields.Selector) generic.Matcher {
return generic.MatcherFunc(func(obj runtime.Object) (bool, error) {
resourcequotaObj, ok := obj.(*api.ResourceQuota)
if !ok {
return false, fmt.Errorf("not a resourcequota")
}
fields := ResourceQuotaToSelectableFields(resourcequotaObj)
return label.Matches(labels.Set(resourcequotaObj.Labels)) && field.Matches(fields), nil
})
}
// 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.
func (s storePodsNamespacer) List(selector labels.Selector) (pods api.PodList, err error) {
list := api.PodList{}
for _, m := range s.store.List() {
pod := m.(*api.Pod)
if s.namespace == api.NamespaceAll || s.namespace == pod.Namespace {
if selector.Matches(labels.Set(pod.Labels)) {
list.Items = append(list.Items, *pod)
}
}
}
return list, nil
}
// getNodesToDaemonSetPods returns a map from nodes to daemon pods (corresponding to ds) running on the nodes.
func (dsc *DaemonSetsController) getNodesToDaemonPods(ds *extensions.DaemonSet) (map[string][]*api.Pod, error) {
nodeToDaemonPods := make(map[string][]*api.Pod)
daemonPods, err := dsc.podStore.Pods(ds.Namespace).List(labels.Set(ds.Spec.Selector).AsSelector())
if err != nil {
return nodeToDaemonPods, err
}
for i := range daemonPods.Items {
nodeName := daemonPods.Items[i].Spec.NodeName
nodeToDaemonPods[nodeName] = append(nodeToDaemonPods[nodeName], &daemonPods.Items[i])
}
return nodeToDaemonPods, nil
}
// MatchJob is the filter used by the generic etcd backend to route
// watch events from etcd to clients of the apiserver only interested in specific
// labels/fields.
func MatchJob(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) {
job, ok := obj.(*extensions.Job)
if !ok {
return nil, nil, fmt.Errorf("Given object is not a job.")
}
return labels.Set(job.ObjectMeta.Labels), JobToSelectableFields(job), nil
},
}
}
// MatchIngress is the filter used by the generic etcd backend to ingress
// watch events from etcd to clients of the apiserver only interested in specific
// labels/fields.
func MatchIngress(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) {
ingress, ok := obj.(*extensions.Ingress)
if !ok {
return nil, nil, fmt.Errorf("Given object is not an Ingress.")
}
return labels.Set(ingress.ObjectMeta.Labels), IngressToSelectableFields(ingress), nil
},
}
}