// NewIngressController returns a new ingress controller
func NewIngressController(client federation_release_1_4.Interface) *IngressController {
broadcaster := record.NewBroadcaster()
broadcaster.StartRecordingToSink(eventsink.NewFederatedEventSink(client))
recorder := broadcaster.NewRecorder(api.EventSource{Component: "federated-ingress-controller"})
ic := &IngressController{
federatedApiClient: client,
ingressReviewDelay: time.Second * 10,
clusterAvailableDelay: time.Second * 20,
smallDelay: time.Second * 3,
updateTimeout: time.Second * 30,
ingressBackoff: flowcontrol.NewBackOff(5*time.Second, time.Minute),
eventRecorder: recorder,
}
// Build deliverers for triggering reconcilations.
ic.ingressDeliverer = util.NewDelayingDeliverer()
ic.clusterDeliverer = util.NewDelayingDeliverer()
// Start informer in federated API servers on ingresses that should be federated.
ic.ingressInformerStore, ic.ingressInformerController = framework.NewInformer(
&cache.ListWatch{
ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
return client.Extensions().Ingresses(api.NamespaceAll).List(options)
},
WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
return client.Extensions().Ingresses(api.NamespaceAll).Watch(options)
},
},
&extensions_v1beta1.Ingress{},
controller.NoResyncPeriodFunc(),
util.NewTriggerOnAllChanges(
func(obj pkg_runtime.Object) {
ic.deliverIngressObj(obj, 0, false)
},
))
// Federated informer on ingresses in members of federation.
ic.ingressFederatedInformer = util.NewFederatedInformer(
client,
func(cluster *federation_api.Cluster, targetClient kube_release_1_4.Interface) (cache.Store, framework.ControllerInterface) {
return framework.NewInformer(
&cache.ListWatch{
ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
return targetClient.Extensions().Ingresses(api.NamespaceAll).List(options)
},
WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
return targetClient.Extensions().Ingresses(api.NamespaceAll).Watch(options)
},
},
&extensions_v1beta1.Ingress{},
controller.NoResyncPeriodFunc(),
// Trigger reconcilation whenever something in federated cluster is changed. In most cases it
// would be just confirmation that some ingress operation suceeded.
util.NewTriggerOnAllChanges(
func(obj pkg_runtime.Object) {
ic.deliverIngressObj(obj, ic.ingressReviewDelay, false)
},
))
},
&util.ClusterLifecycleHandlerFuncs{
ClusterAvailable: func(cluster *federation_api.Cluster) {
// When new cluster becomes available process all the ingresses again.
ic.clusterDeliverer.DeliverAt(allClustersKey, nil, time.Now().Add(ic.clusterAvailableDelay))
},
},
)
// Federated updater along with Create/Update/Delete operations.
ic.federatedUpdater = util.NewFederatedUpdater(ic.ingressFederatedInformer,
func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
ingress := obj.(*extensions_v1beta1.Ingress)
glog.V(4).Infof("Attempting to create Ingress: %v", ingress)
_, err := client.Extensions().Ingresses(ingress.Namespace).Create(ingress)
return err
},
func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
ingress := obj.(*extensions_v1beta1.Ingress)
glog.V(4).Infof("Attempting to update Ingress: %v", ingress)
_, err := client.Extensions().Ingresses(ingress.Namespace).Update(ingress)
return err
},
func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
ingress := obj.(*extensions_v1beta1.Ingress)
glog.V(4).Infof("Attempting to delete Ingress: %v", ingress)
err := client.Extensions().Ingresses(ingress.Namespace).Delete(ingress.Name, &api.DeleteOptions{})
return err
})
return ic
}
// NewIngressController returns a new ingress controller
func NewIngressController(client federation_release_1_4.Interface) *IngressController {
glog.V(4).Infof("->NewIngressController V(4)")
broadcaster := record.NewBroadcaster()
broadcaster.StartRecordingToSink(eventsink.NewFederatedEventSink(client))
recorder := broadcaster.NewRecorder(api.EventSource{Component: "federated-ingress-controller"})
ic := &IngressController{
federatedApiClient: client,
ingressReviewDelay: time.Second * 10,
configMapReviewDelay: time.Second * 10,
clusterAvailableDelay: time.Second * 20,
smallDelay: time.Second * 3,
updateTimeout: time.Second * 30,
ingressBackoff: flowcontrol.NewBackOff(5*time.Second, time.Minute),
eventRecorder: recorder,
configMapBackoff: flowcontrol.NewBackOff(5*time.Second, time.Minute),
}
// Build deliverers for triggering reconcilations.
ic.ingressDeliverer = util.NewDelayingDeliverer()
ic.clusterDeliverer = util.NewDelayingDeliverer()
ic.configMapDeliverer = util.NewDelayingDeliverer()
// Start informer in federated API servers on ingresses that should be federated.
ic.ingressInformerStore, ic.ingressInformerController = cache.NewInformer(
&cache.ListWatch{
ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
return client.Extensions().Ingresses(api.NamespaceAll).List(options)
},
WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
return client.Extensions().Ingresses(api.NamespaceAll).Watch(options)
},
},
&extensions_v1beta1.Ingress{},
controller.NoResyncPeriodFunc(),
util.NewTriggerOnAllChanges(
func(obj pkg_runtime.Object) {
ic.deliverIngressObj(obj, 0, false)
},
))
// Federated informer on ingresses in members of federation.
ic.ingressFederatedInformer = util.NewFederatedInformer(
client,
func(cluster *federation_api.Cluster, targetClient kube_release_1_4.Interface) (cache.Store, cache.ControllerInterface) {
return cache.NewInformer(
&cache.ListWatch{
ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
return targetClient.Extensions().Ingresses(api.NamespaceAll).List(options)
},
WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
return targetClient.Extensions().Ingresses(api.NamespaceAll).Watch(options)
},
},
&extensions_v1beta1.Ingress{},
controller.NoResyncPeriodFunc(),
// Trigger reconcilation whenever something in federated cluster is changed. In most cases it
// would be just confirmation that some ingress operation suceeded.
util.NewTriggerOnAllChanges(
func(obj pkg_runtime.Object) {
ic.deliverIngressObj(obj, ic.ingressReviewDelay, false)
},
))
},
&util.ClusterLifecycleHandlerFuncs{
ClusterAvailable: func(cluster *federation_api.Cluster) {
// When new cluster becomes available process all the ingresses again, and configure it's ingress controller's configmap with the correct UID
ic.clusterDeliverer.DeliverAfter(cluster.Name, cluster, ic.clusterAvailableDelay)
},
},
)
// Federated informer on configmaps for ingress controllers in members of the federation.
ic.configMapFederatedInformer = util.NewFederatedInformer(
client,
func(cluster *federation_api.Cluster, targetClient kube_release_1_4.Interface) (cache.Store, cache.ControllerInterface) {
glog.V(4).Infof("Returning new informer for cluster %q", cluster.Name)
return cache.NewInformer(
&cache.ListWatch{
ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
if targetClient == nil {
glog.Errorf("Internal error: targetClient is nil")
}
return targetClient.Core().ConfigMaps(uidConfigMapNamespace).List(options) // we only want to list one by name - unfortunately Kubernetes don't have a selector for that.
},
WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
if targetClient == nil {
glog.Errorf("Internal error: targetClient is nil")
}
return targetClient.Core().ConfigMaps(uidConfigMapNamespace).Watch(options) // as above
},
},
&v1.ConfigMap{},
controller.NoResyncPeriodFunc(),
// Trigger reconcilation whenever the ingress controller's configmap in a federated cluster is changed. In most cases it
// would be just confirmation that the configmap for the ingress controller is correct.
util.NewTriggerOnAllChanges(
func(obj pkg_runtime.Object) {
ic.deliverConfigMapObj(cluster.Name, obj, ic.configMapReviewDelay, false)
},
))
},
&util.ClusterLifecycleHandlerFuncs{
ClusterAvailable: func(cluster *federation_api.Cluster) {
ic.clusterDeliverer.DeliverAfter(cluster.Name, cluster, ic.clusterAvailableDelay)
},
},
)
// Federated ingress updater along with Create/Update/Delete operations.
ic.federatedIngressUpdater = util.NewFederatedUpdater(ic.ingressFederatedInformer,
func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
ingress := obj.(*extensions_v1beta1.Ingress)
glog.V(4).Infof("Attempting to create Ingress: %v", ingress)
_, err := client.Extensions().Ingresses(ingress.Namespace).Create(ingress)
if err != nil {
glog.Errorf("Error creating ingress %q: %v", types.NamespacedName{Name: ingress.Name, Namespace: ingress.Namespace}, err)
} else {
glog.V(4).Infof("Successfully created ingress %q", types.NamespacedName{Name: ingress.Name, Namespace: ingress.Namespace})
}
return err
},
func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
ingress := obj.(*extensions_v1beta1.Ingress)
glog.V(4).Infof("Attempting to update Ingress: %v", ingress)
_, err := client.Extensions().Ingresses(ingress.Namespace).Update(ingress)
if err != nil {
glog.V(4).Infof("Failed to update Ingress: %v", err)
} else {
glog.V(4).Infof("Successfully updated Ingress: %q", types.NamespacedName{Name: ingress.Name, Namespace: ingress.Namespace})
}
return err
},
func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
ingress := obj.(*extensions_v1beta1.Ingress)
glog.V(4).Infof("Attempting to delete Ingress: %v", ingress)
err := client.Extensions().Ingresses(ingress.Namespace).Delete(ingress.Name, &api.DeleteOptions{})
return err
})
// Federated configmap updater along with Create/Update/Delete operations. Only Update should ever be called.
ic.federatedConfigMapUpdater = util.NewFederatedUpdater(ic.configMapFederatedInformer,
func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
configMap := obj.(*v1.ConfigMap)
configMapName := types.NamespacedName{Name: configMap.Name, Namespace: configMap.Namespace}
glog.Errorf("Internal error: Incorrectly attempting to create ConfigMap: %q", configMapName)
_, err := client.Core().ConfigMaps(configMap.Namespace).Create(configMap)
return err
},
func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
configMap := obj.(*v1.ConfigMap)
configMapName := types.NamespacedName{Name: configMap.Name, Namespace: configMap.Namespace}
glog.V(4).Infof("Attempting to update ConfigMap: %v", configMap)
_, err := client.Core().ConfigMaps(configMap.Namespace).Update(configMap)
if err == nil {
glog.V(4).Infof("Successfully updated ConfigMap %q", configMapName)
} else {
glog.V(4).Infof("Failed to update ConfigMap %q: %v", configMapName, err)
}
return err
},
func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
configMap := obj.(*v1.ConfigMap)
configMapName := types.NamespacedName{Name: configMap.Name, Namespace: configMap.Namespace}
glog.Errorf("Internal error: Incorrectly attempting to delete ConfigMap: %q", configMapName)
err := client.Core().ConfigMaps(configMap.Namespace).Delete(configMap.Name, &api.DeleteOptions{})
return err
})
return ic
}