// replacePods replaces content of the store with the given pods.
func replacePods(pods []*api.Pod, store cache.Store) {
found := make([]interface{}, 0, len(pods))
for i := range pods {
found = append(found, pods[i])
}
expectNoError(store.Replace(found, "0"))
}
// SyncAllPodsWithStore lists all pods and inserts them into the given store.
// Though this function is written in a generic manner, it is only used by the
// controllers for a specific purpose, to synchronously populate the store
// with the first batch of pods that would otherwise be sent by the Informer.
// Doing this avoids more complicated forms of synchronization with the
// Informer, though it also means that the controller calling this function
// will receive "OnUpdate" events for all the pods in the store, instead of
// "OnAdd". This should be ok, since most controllers are level triggered
// and make decisions based on the contents of the store.
//
// TODO: Extend this logic to load arbitrary local state for the controllers
// instead of just pods.
func SyncAllPodsWithStore(kubeClient clientset.Interface, store cache.Store) {
var allPods *api.PodList
var err error
listOptions := api.ListOptions{LabelSelector: labels.Everything(), FieldSelector: fields.Everything()}
for {
if allPods, err = kubeClient.Legacy().Pods(api.NamespaceAll).List(listOptions); err != nil {
glog.Warningf("Retrying pod list: %v", err)
continue
}
break
}
pods := []interface{}{}
for i := range allPods.Items {
p := allPods.Items[i]
glog.V(4).Infof("Initializing store with pod %v/%v", p.Namespace, p.Name)
pods = append(pods, &p)
}
store.Replace(pods, allPods.ResourceVersion)
return
}