Example #1
0
// restoreContainers loads all running containers and inserts
// them into skydns when skydock starts
func restoreContainers() error {
	containers, err := dockerClient.FetchAllContainers()
	if err != nil {
		return err
	}

	var container *docker.Container
	for _, cnt := range containers {
		uuid := utils.Truncate(cnt.Id)
		if container, err = dockerClient.FetchContainer(uuid, cnt.Image); err != nil {
			if err != docker.ErrImageNotTagged {
				log.Logf(log.ERROR, "failed to fetch %s on restore: %s", cnt.Id, err)
			}
			continue
		}

		service, err := plugins.createService(container)
		if err != nil {
			// doing a fatal here because we cannot do much if the plugins
			// return an invalid service or error
			fatal(err)
		}
		if err := sendService(uuid, service); err != nil {
			log.Logf(log.ERROR, "failed to send %s to skydns on restore: %s", uuid, err)
		}
	}
	return nil
}
Example #2
0
func eventHandler(c chan *docker.Event, group *sync.WaitGroup) {
	defer group.Done()

	for event := range c {
		log.Logf(log.DEBUG, "received event (%s) %s %s", event.Status, event.ContainerId, event.Image)
		uuid := utils.Truncate(event.ContainerId)

		switch event.Status {
		case "die", "stop", "kill":
			if err := removeService(uuid); err != nil {
				log.Logf(log.ERROR, "error removing %s from skydns: %s", uuid, err)
			}
		case "start", "restart":
			if err := addService(uuid, event.Image); err != nil {
				log.Logf(log.ERROR, "error adding %s to skydns: %s", uuid, err)
			}
		}
	}
}