// 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 *v1.Pod) (controllers []*v1.ReplicationController, err error) {
if len(pod.Labels) == 0 {
err = fmt.Errorf("no controllers found for pod %v because it has no labels", pod.Name)
return
}
key := &v1.ReplicationController{ObjectMeta: v1.ObjectMeta{Namespace: pod.Namespace}}
items, err := s.Indexer.Index(NamespaceIndex, key)
if err != nil {
return
}
for _, m := range items {
rc := m.(*v1.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
}
// GetPodPodDisruptionBudgets returns a list of PodDisruptionBudgets matching a pod. Returns an error only if no matching PodDisruptionBudgets are found.
func (s *StoreToPodDisruptionBudgetLister) GetPodPodDisruptionBudgets(pod *v1.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
}
// GetPodStatefulSets returns a list of StatefulSets managing a pod. Returns an error only if no matching StatefulSets are found.
func (s *StoreToStatefulSetLister) GetPodStatefulSets(pod *v1.Pod) (psList []apps.StatefulSet, err error) {
var selector labels.Selector
var ps apps.StatefulSet
if len(pod.Labels) == 0 {
err = fmt.Errorf("no StatefulSets found for pod %v because it has no labels", pod.Name)
return
}
for _, m := range s.Store.List() {
ps = *m.(*apps.StatefulSet)
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 StatefulSet 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 StatefulSet 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 *v1.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
}
// 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 []batch.Job, err error) {
var selector labels.Selector
var job batch.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.(*batch.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
}
// GetDeploymentsForReplicaSet returns a list of deployments managing a replica set. Returns an error only if no matching deployments are found.
func (s *StoreToDeploymentLister) GetDeploymentsForReplicaSet(rs *extensions.ReplicaSet) (deployments []*extensions.Deployment, err error) {
if len(rs.Labels) == 0 {
err = fmt.Errorf("no deployments found for ReplicaSet %v because it has no labels", rs.Name)
return
}
// TODO: MODIFY THIS METHOD so that it checks for the podTemplateSpecHash label
dList, err := s.Deployments(rs.Namespace).List(labels.Everything())
if err != nil {
return
}
for _, d := range dList {
selector, err := metav1.LabelSelectorAsSelector(d.Spec.Selector)
if err != nil {
return nil, fmt.Errorf("invalid label selector: %v", err)
}
// If a deployment with a nil or empty selector creeps in, it should match nothing, not everything.
if selector.Empty() || !selector.Matches(labels.Set(rs.Labels)) {
continue
}
deployments = append(deployments, d)
}
if len(deployments) == 0 {
err = fmt.Errorf("could not find deployments set for ReplicaSet %s in namespace %s with labels: %v", rs.Name, rs.Namespace, rs.Labels)
}
return
}
// GetPodReplicaSets returns a list of ReplicaSets managing a pod. Returns an error only if no matching ReplicaSets are found.
func (s *StoreToReplicaSetLister) GetPodReplicaSets(pod *v1.Pod) (rss []*extensions.ReplicaSet, err error) {
if len(pod.Labels) == 0 {
err = fmt.Errorf("no ReplicaSets found for pod %v because it has no labels", pod.Name)
return
}
list, err := s.ReplicaSets(pod.Namespace).List(labels.Everything())
if err != nil {
return
}
for _, rs := range list {
if rs.Namespace != pod.Namespace {
continue
}
selector, err := metav1.LabelSelectorAsSelector(rs.Spec.Selector)
if err != nil {
return nil, fmt.Errorf("invalid selector: %v", err)
}
// 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
}
// GetDeploymentsForDeployments returns a list of deployments managing a pod. Returns an error only if no matching deployments are found.
// TODO eliminate shallow copies
func (s *StoreToDeploymentLister) GetDeploymentsForPod(pod *v1.Pod) (deployments []*extensions.Deployment, err error) {
if len(pod.Labels) == 0 {
err = fmt.Errorf("no deployments found for Pod %v because it has no labels", pod.Name)
return
}
if len(pod.Labels[extensions.DefaultDeploymentUniqueLabelKey]) == 0 {
return
}
dList, err := s.Deployments(pod.Namespace).List(labels.Everything())
if err != nil {
return
}
for _, d := range dList {
selector, err := metav1.LabelSelectorAsSelector(d.Spec.Selector)
if err != nil {
return nil, fmt.Errorf("invalid label selector: %v", err)
}
// If a deployment with a nil or empty selector creeps in, it should match nothing, not everything.
if selector.Empty() || !selector.Matches(labels.Set(pod.Labels)) {
continue
}
deployments = append(deployments, d)
}
if len(deployments) == 0 {
err = fmt.Errorf("could not find deployments set for Pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
}
return
}
// List returns a list of namespaces
func (i *IndexerToNamespaceLister) List(selector labels.Selector) (namespaces []*api.Namespace, err error) {
for _, m := range i.Indexer.List() {
namespace := m.(*api.Namespace)
if selector.Matches(labels.Set(namespace.Labels)) {
namespaces = append(namespaces, namespace)
}
}
return namespaces, nil
}
func ListAllByNamespace(indexer Indexer, namespace string, selector labels.Selector, appendFn AppendFunc) error {
if namespace == v1.NamespaceAll {
for _, m := range indexer.List() {
metadata, err := meta.Accessor(m)
if err != nil {
return err
}
if selector.Matches(labels.Set(metadata.GetLabels())) {
appendFn(m)
}
}
return nil
}
items, err := indexer.Index(NamespaceIndex, &v1.ObjectMeta{Namespace: namespace})
if err != nil {
// Ignore error; do slow search without index.
glog.Warningf("can not retrieve list of objects using index : %v", err)
for _, m := range indexer.List() {
metadata, err := meta.Accessor(m)
if err != nil {
return err
}
if metadata.GetNamespace() == namespace && selector.Matches(labels.Set(metadata.GetLabels())) {
appendFn(m)
}
}
return nil
}
for _, m := range items {
metadata, err := meta.Accessor(m)
if err != nil {
return err
}
if selector.Matches(labels.Set(metadata.GetLabels())) {
appendFn(m)
}
}
return nil
}
// 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 *v1.Pod) (services []*v1.Service, err error) {
allServices, err := s.Services(pod.Namespace).List(labels.Everything())
if err != nil {
return nil, err
}
for i := range allServices {
service := allServices[i]
if service.Spec.Selector == nil {
// services with nil selectors match nothing, not everything.
continue
}
selector := labels.Set(service.Spec.Selector).AsSelectorPreValidated()
if selector.Matches(labels.Set(pod.Labels)) {
services = append(services, service)
}
}
return services, nil
}
func ListAll(store Store, selector labels.Selector, appendFn AppendFunc) error {
for _, m := range store.List() {
metadata, err := meta.Accessor(m)
if err != nil {
return err
}
if selector.Matches(labels.Set(metadata.GetLabels())) {
appendFn(m)
}
}
return nil
}
func (c *FakeCertificateSigningRequests) List(opts v1.ListOptions) (result *v1alpha1.CertificateSigningRequestList, err error) {
obj, err := c.Fake.
Invokes(testing.NewRootListAction(certificatesigningrequestsResource, opts), &v1alpha1.CertificateSigningRequestList{})
if obj == nil {
return nil, err
}
label, _, _ := testing.ExtractFromListOptions(opts)
if label == nil {
label = labels.Everything()
}
list := &v1alpha1.CertificateSigningRequestList{}
for _, item := range obj.(*v1alpha1.CertificateSigningRequestList).Items {
if label.Matches(labels.Set(item.Labels)) {
list.Items = append(list.Items, item)
}
}
return list, err
}
func (c *FakePodSecurityPolicies) List(opts v1.ListOptions) (result *v1beta1.PodSecurityPolicyList, err error) {
obj, err := c.Fake.
Invokes(testing.NewRootListAction(podsecuritypoliciesResource, opts), &v1beta1.PodSecurityPolicyList{})
if obj == nil {
return nil, err
}
label, _, _ := testing.ExtractFromListOptions(opts)
if label == nil {
label = labels.Everything()
}
list := &v1beta1.PodSecurityPolicyList{}
for _, item := range obj.(*v1beta1.PodSecurityPolicyList).Items {
if label.Matches(labels.Set(item.Labels)) {
list.Items = append(list.Items, item)
}
}
return list, err
}
func (c *FakeServices) List(opts v1.ListOptions) (result *v1.ServiceList, err error) {
obj, err := c.Fake.
Invokes(testing.NewListAction(servicesResource, c.ns, opts), &v1.ServiceList{})
if obj == nil {
return nil, err
}
label, _, _ := testing.ExtractFromListOptions(opts)
if label == nil {
label = labels.Everything()
}
list := &v1.ServiceList{}
for _, item := range obj.(*v1.ServiceList).Items {
if label.Matches(labels.Set(item.Labels)) {
list.Items = append(list.Items, item)
}
}
return list, err
}