// Builds a FederatedInformer for the given federation client and factory.
func NewFederatedInformer(
federationClient federation_release_1_4.Interface,
targetInformerFactory TargetInformerFactory,
clusterLifecycle *ClusterLifecycleHandlerFuncs) FederatedInformer {
federatedInformer := &federatedInformerImpl{
targetInformerFactory: targetInformerFactory,
clientFactory: func(cluster *federation_api.Cluster) (kube_release_1_4.Interface, error) {
clusterConfig, err := BuildClusterConfig(cluster)
if err == nil && clusterConfig != nil {
clientset := kube_release_1_4.NewForConfigOrDie(restclient.AddUserAgent(clusterConfig, userAgentName))
return clientset, nil
}
return nil, err
},
targetInformers: make(map[string]informer),
}
getClusterData := func(name string) []interface{} {
data, err := federatedInformer.GetTargetStore().ListFromCluster(name)
if err != nil {
glog.Errorf("Failed to list %s content: %v", name, err)
return make([]interface{}, 0)
}
return data
}
federatedInformer.clusterInformer.store, federatedInformer.clusterInformer.controller = cache.NewInformer(
&cache.ListWatch{
ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
return federationClient.Federation().Clusters().List(options)
},
WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
return federationClient.Federation().Clusters().Watch(options)
},
},
&federation_api.Cluster{},
clusterSyncPeriod,
cache.ResourceEventHandlerFuncs{
DeleteFunc: func(old interface{}) {
oldCluster, ok := old.(*federation_api.Cluster)
if ok {
var data []interface{}
if clusterLifecycle.ClusterUnavailable != nil {
data = getClusterData(oldCluster.Name)
}
federatedInformer.deleteCluster(oldCluster)
if clusterLifecycle.ClusterUnavailable != nil {
clusterLifecycle.ClusterUnavailable(oldCluster, data)
}
}
},
AddFunc: func(cur interface{}) {
curCluster, ok := cur.(*federation_api.Cluster)
if ok && isClusterReady(curCluster) {
federatedInformer.addCluster(curCluster)
if clusterLifecycle.ClusterAvailable != nil {
clusterLifecycle.ClusterAvailable(curCluster)
}
} else {
glog.Errorf("Cluster %v not added. Not of correct type, or cluster not ready.", cur)
}
},
UpdateFunc: func(old, cur interface{}) {
oldCluster, ok := old.(*federation_api.Cluster)
if !ok {
glog.Errorf("Internal error: Cluster %v not updated. Old cluster not of correct type.", old)
return
}
curCluster, ok := cur.(*federation_api.Cluster)
if !ok {
glog.Errorf("Internal error: Cluster %v not updated. New cluster not of correct type.", cur)
return
}
if isClusterReady(oldCluster) != isClusterReady(curCluster) || !reflect.DeepEqual(oldCluster.Spec, curCluster.Spec) || !reflect.DeepEqual(oldCluster.ObjectMeta.Annotations, curCluster.ObjectMeta.Annotations) {
var data []interface{}
if clusterLifecycle.ClusterUnavailable != nil {
data = getClusterData(oldCluster.Name)
}
federatedInformer.deleteCluster(oldCluster)
if clusterLifecycle.ClusterUnavailable != nil {
clusterLifecycle.ClusterUnavailable(oldCluster, data)
}
if isClusterReady(curCluster) {
federatedInformer.addCluster(curCluster)
if clusterLifecycle.ClusterAvailable != nil {
clusterLifecycle.ClusterAvailable(curCluster)
}
}
} else {
glog.V(4).Infof("Cluster %v not updated to %v as ready status and specs are identical", oldCluster, curCluster)
}
},
},
)
return federatedInformer
}
