func (s *podStorage) merge(source string, change interface{}) (adds, updates, deletes, removes, reconciles *kubetypes.PodUpdate) {
s.podLock.Lock()
defer s.podLock.Unlock()
addPods := []*v1.Pod{}
updatePods := []*v1.Pod{}
deletePods := []*v1.Pod{}
removePods := []*v1.Pod{}
reconcilePods := []*v1.Pod{}
pods := s.pods[source]
if pods == nil {
pods = make(map[string]*v1.Pod)
}
// updatePodFunc is the local function which updates the pod cache *oldPods* with new pods *newPods*.
// After updated, new pod will be stored in the pod cache *pods*.
// Notice that *pods* and *oldPods* could be the same cache.
updatePodsFunc := func(newPods []*v1.Pod, oldPods, pods map[string]*v1.Pod) {
filtered := filterInvalidPods(newPods, source, s.recorder)
for _, ref := range filtered {
name := kubecontainer.GetPodFullName(ref)
// Annotate the pod with the source before any comparison.
if ref.Annotations == nil {
ref.Annotations = make(map[string]string)
}
ref.Annotations[kubetypes.ConfigSourceAnnotationKey] = source
if existing, found := oldPods[name]; found {
pods[name] = existing
needUpdate, needReconcile, needGracefulDelete := checkAndUpdatePod(existing, ref)
if needUpdate {
updatePods = append(updatePods, existing)
} else if needReconcile {
reconcilePods = append(reconcilePods, existing)
} else if needGracefulDelete {
deletePods = append(deletePods, existing)
}
continue
}
recordFirstSeenTime(ref)
pods[name] = ref
addPods = append(addPods, ref)
}
}
update := change.(kubetypes.PodUpdate)
// The InitContainers and InitContainerStatuses fields are lost during
// serialization and deserialization. They are conveyed via Annotations.
// Setting these fields here so that kubelet doesn't have to check for
// annotations.
if source == kubetypes.ApiserverSource {
for _, pod := range update.Pods {
if err := podutil.SetInitContainersAndStatuses(pod); err != nil {
glog.Error(err)
}
}
}
switch update.Op {
case kubetypes.ADD, kubetypes.UPDATE, kubetypes.DELETE:
if update.Op == kubetypes.ADD {
glog.V(4).Infof("Adding new pods from source %s : %v", source, update.Pods)
} else if update.Op == kubetypes.DELETE {
glog.V(4).Infof("Graceful deleting pods from source %s : %v", source, update.Pods)
} else {
glog.V(4).Infof("Updating pods from source %s : %v", source, update.Pods)
}
updatePodsFunc(update.Pods, pods, pods)
case kubetypes.REMOVE:
glog.V(4).Infof("Removing pods from source %s : %v", source, update.Pods)
for _, value := range update.Pods {
name := kubecontainer.GetPodFullName(value)
if existing, found := pods[name]; found {
// this is a delete
delete(pods, name)
removePods = append(removePods, existing)
continue
}
// this is a no-op
}
case kubetypes.SET:
glog.V(4).Infof("Setting pods for source %s", source)
s.markSourceSet(source)
// Clear the old map entries by just creating a new map
oldPods := pods
pods = make(map[string]*v1.Pod)
updatePodsFunc(update.Pods, oldPods, pods)
for name, existing := range oldPods {
if _, found := pods[name]; !found {
// this is a delete
removePods = append(removePods, existing)
}
}
default:
glog.Warningf("Received invalid update type: %v", update)
}
s.pods[source] = pods
adds = &kubetypes.PodUpdate{Op: kubetypes.ADD, Pods: copyPods(addPods), Source: source}
updates = &kubetypes.PodUpdate{Op: kubetypes.UPDATE, Pods: copyPods(updatePods), Source: source}
deletes = &kubetypes.PodUpdate{Op: kubetypes.DELETE, Pods: copyPods(deletePods), Source: source}
removes = &kubetypes.PodUpdate{Op: kubetypes.REMOVE, Pods: copyPods(removePods), Source: source}
reconciles = &kubetypes.PodUpdate{Op: kubetypes.RECONCILE, Pods: copyPods(reconcilePods), Source: source}
return adds, updates, deletes, removes, reconciles
}
},
},
},
}
if err := podutil.SetInitContainersAnnotations(pod); err != nil {
Expect(err).To(BeNil())
}
startedPod := podClient.Create(pod)
w, err := podClient.Watch(v1.SingleObject(startedPod.ObjectMeta))
Expect(err).NotTo(HaveOccurred(), "error watching a pod")
wr := watch.NewRecorder(w)
event, err := watch.Until(framework.PodStartTimeout, wr, conditions.PodCompleted)
Expect(err).To(BeNil())
framework.CheckInvariants(wr.Events(), framework.ContainerInitInvariant)
endPod := event.Object.(*v1.Pod)
if err := podutil.SetInitContainersAndStatuses(endPod); err != nil {
Expect(err).To(BeNil())
}
Expect(endPod.Status.Phase).To(Equal(v1.PodSucceeded))
_, init := v1.GetPodCondition(&endPod.Status, v1.PodInitialized)
Expect(init).NotTo(BeNil())
Expect(init.Status).To(Equal(v1.ConditionTrue))
Expect(len(endPod.Status.InitContainerStatuses)).To(Equal(2))
for _, status := range endPod.Status.InitContainerStatuses {
Expect(status.Ready).To(BeTrue())
Expect(status.State.Terminated).NotTo(BeNil())
Expect(status.State.Terminated.ExitCode).To(BeZero())
}
})