Beispiel #1
0
// registeredVMCallback will process registeredVMEvent
func registeredVMCallback(sess *session.Session, ie events.Event) {
	// check container registered event if this container is not found in container cache
	// grab the container from the cache
	container := Containers.Container(ie.Reference())
	if container != nil {
		// if container exists, ingore it
		return
	}
	switch ie.String() {
	case events.ContainerRegistered:
		moref := new(types.ManagedObjectReference)
		if ok := moref.FromString(ie.Reference()); !ok {
			log.Errorf("Failed to get event VM mobref: %s", ie.Reference())
			return
		}
		if !isManagedbyVCH(sess, *moref) {
			return
		}
		log.Debugf("Register container VM %s", moref)
		ctx := context.Background()
		vms, err := populateVMAttributes(ctx, sess, []types.ManagedObjectReference{*moref})
		if err != nil {
			log.Error(err)
			return
		}
		registeredContainers := convertInfraContainers(ctx, sess, vms)
		for i := range registeredContainers {
			Containers.put(registeredContainers[i])
			log.Debugf("Registered container %q", registeredContainers[i].Config.Name)
		}
	}
	return
}
Beispiel #2
0
// handleEvent processes events
func handleEvent(netctx *Context, ie events.Event) {
	switch ie.String() {
	case events.ContainerPoweredOff:
		handle := exec.GetContainer(context.Background(), uid.Parse(ie.Reference()))
		if handle == nil {
			log.Errorf("Container %s not found - unable to UnbindContainer", ie.Reference())
			return
		}
		defer handle.Close()
		if _, err := netctx.UnbindContainer(handle); err != nil {
			log.Warnf("Failed to unbind container %s: %s", ie.Reference(), err)
			return
		}

		if err := handle.Commit(context.Background(), nil, nil); err != nil {
			log.Warnf("Failed to commit handle after network unbind for container %s: %s", ie.Reference(), err)
		}

	}
	return
}
Beispiel #3
0
// Publish events to subscribers
func (mgr *Manager) Publish(e events.Event) {
	// TODO: this will not block, but might still want to consider
	// a timeout for the callback
	go func() {
		// subscribers for this event
		mgr.subs.mu.RLock()
		subs := mgr.subs.subscribers[e.Topic()]
		mgr.subs.mu.RUnlock()

		log.Debugf("Found %d subscribers to %s: %s", len(subs), e.Topic(), e.Message())

		for sub, f := range subs {
			log.Debugf("Event manager calling back to %s", sub)
			f(e)
		}
	}()
}
Beispiel #4
0
// eventCallback will process events
func eventCallback(ie events.Event) {
	// grab the container from the cache
	container := Containers.Container(ie.Reference())
	if container != nil {

		newState := eventedState(ie.String(), container.CurrentState())
		// do we have a state change
		if newState != container.CurrentState() {
			switch newState {
			case StateStopping,
				StateRunning,
				StateStopped,
				StateSuspended:

				log.Debugf("Container(%s) state set to %s via event activity",
					container.ExecConfig.ID, newState.String())

				container.SetState(newState)
				if newState == StateStopped {
					container.onStop()
				}

				// container state has changed so we need to update the container attributes
				// we'll do this in a go routine to avoid blocking
				go func() {
					ctx, cancel := context.WithTimeout(context.Background(), propertyCollectorTimeout)
					defer cancel()

					err := container.Refresh(ctx)
					if err != nil {
						log.Errorf("Event driven container update failed: %s", err.Error())
					}
					// regardless of update success failure publish the container event
					publishContainerEvent(container.ExecConfig.ID, ie.Created(), ie.String())
				}()
			case StateRemoved:
				log.Debugf("Container(%s) %s via event activity", container.ExecConfig.ID, newState.String())
				Containers.Remove(container.ExecConfig.ID)
				publishContainerEvent(container.ExecConfig.ID, ie.Created(), ie.String())

			}
		}
	}
	return
}