Example #1
0
func (factory *RouterControllerFactory) Create(plugin router.Plugin) *controller.RouterController {
	routeEventQueue := oscache.NewEventQueue(cache.MetaNamespaceKeyFunc)
	cache.NewReflector(&routeLW{factory.OSClient}, &routeapi.Route{}, routeEventQueue, 2*time.Minute).Run()

	endpointsEventQueue := oscache.NewEventQueue(cache.MetaNamespaceKeyFunc)
	cache.NewReflector(&endpointsLW{factory.KClient}, &kapi.Endpoints{}, endpointsEventQueue, 2*time.Minute).Run()

	return &controller.RouterController{
		Plugin: plugin,
		NextEndpoints: func() (watch.EventType, *kapi.Endpoints, error) {
			eventType, obj, err := endpointsEventQueue.Pop()
			if err != nil {
				return watch.Error, nil, err
			}
			return eventType, obj.(*kapi.Endpoints), nil
		},
		NextRoute: func() (watch.EventType, *routeapi.Route, error) {
			eventType, obj, err := routeEventQueue.Pop()
			if err != nil {
				return watch.Error, nil, err
			}
			return eventType, obj.(*routeapi.Route), nil
		},
	}
}
Example #2
0
func (oi *OsdnRegistryInterface) WatchMinions(receiver chan *osdnapi.MinionEvent, stop chan bool) error {
	minionEventQueue := oscache.NewEventQueue(cache.MetaNamespaceKeyFunc)
	listWatch := &cache.ListWatch{
		ListFunc: func() (runtime.Object, error) {
			return oi.kClient.Nodes().List(labels.Everything(), fields.Everything())
		},
		WatchFunc: func(resourceVersion string) (watch.Interface, error) {
			return oi.kClient.Nodes().Watch(labels.Everything(), fields.Everything(), resourceVersion)
		},
	}
	cache.NewReflector(listWatch, &kapi.Node{}, minionEventQueue, 4*time.Minute).Run()

	for {
		eventType, obj, err := minionEventQueue.Pop()
		if err != nil {
			return err
		}
		switch eventType {
		case watch.Added:
			// we should ignore the modified event because status updates cause unnecessary noise
			// the only time we would care about modified would be if the minion changes its IP address
			// and hence all nodes need to update their vtep entries for the respective subnet
			// create minionEvent
			node := obj.(*kapi.Node)
			receiver <- &osdnapi.MinionEvent{Type: osdnapi.Added, Minion: node.ObjectMeta.Name}
		case watch.Deleted:
			// TODO: There is a chance that a Delete event will not get triggered.
			// Need to use a periodic sync loop that lists and compares.
			node := obj.(*kapi.Node)
			receiver <- &osdnapi.MinionEvent{Type: osdnapi.Deleted, Minion: node.ObjectMeta.Name}
		}
	}
	return nil
}
Example #3
0
func (oi *OsdnRegistryInterface) WatchSubnets(receiver chan *osdnapi.SubnetEvent, stop chan bool) error {
	subnetEventQueue := oscache.NewEventQueue(cache.MetaNamespaceKeyFunc)
	listWatch := &cache.ListWatch{
		ListFunc: func() (runtime.Object, error) {
			return oi.oClient.HostSubnets().List()
		},
		WatchFunc: func(resourceVersion string) (watch.Interface, error) {
			return oi.oClient.HostSubnets().Watch(resourceVersion)
		},
	}
	cache.NewReflector(listWatch, &api.HostSubnet{}, subnetEventQueue, 4*time.Minute).Run()

	for {
		eventType, obj, err := subnetEventQueue.Pop()
		if err != nil {
			return err
		}
		switch eventType {
		case watch.Added, watch.Modified:
			// create SubnetEvent
			hs := obj.(*api.HostSubnet)
			receiver <- &osdnapi.SubnetEvent{Type: osdnapi.Added, Minion: hs.Host, Sub: osdnapi.Subnet{Minion: hs.HostIP, Sub: hs.Subnet}}
		case watch.Deleted:
			// TODO: There is a chance that a Delete event will not get triggered.
			// Need to use a periodic sync loop that lists and compares.
			hs := obj.(*api.HostSubnet)
			receiver <- &osdnapi.SubnetEvent{Type: osdnapi.Deleted, Minion: hs.Host, Sub: osdnapi.Subnet{Minion: hs.HostIP, Sub: hs.Subnet}}
		}
	}
	return nil
}