// 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 = metav1.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
}
// 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 = metav1.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
}
// 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 = metav1.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
}
// 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
}
func Convert_extensions_ScaleStatus_To_v1beta1_ScaleStatus(in *extensions.ScaleStatus, out *ScaleStatus, s conversion.Scope) error {
out.Replicas = int32(in.Replicas)
out.Selector = nil
out.TargetSelector = ""
if in.Selector != nil {
if in.Selector.MatchExpressions == nil || len(in.Selector.MatchExpressions) == 0 {
out.Selector = in.Selector.MatchLabels
}
selector, err := metav1.LabelSelectorAsSelector(in.Selector)
if err != nil {
return fmt.Errorf("invalid label selector: %v", err)
}
out.TargetSelector = selector.String()
}
return nil
}