Example #1
0
// AddService adds a new services to store. It validates the name
// uniqueness and the IPVS uniqueness by saving the IPVS key
// in the store, which consists in a combination of address, port
// and protocol.
func (s *FusisStore) AddService(svc *types.Service) error {
	svcKey := s.key("services", svc.GetId(), "config")
	ipvsKey := s.key("ipvs-ids", "services", svc.IpvsId())
	// Validating service
	if err := s.validateService(svc); err != nil {
		return err
	}
	if err := s.validateServiceNameUniqueness(svcKey); err != nil {
		return err
	}
	if err := s.validateServiceIpvsUniqueness(ipvsKey); err != nil {
		return err
	}

	// TODO: Make the persistence of service and ipvs id atomic.
	// Pesisting service
	value, err := json.Marshal(svc)
	if err != nil {
		return errors.Wrapf(err, "error marshaling service: %v", svc)
	}
	err = s.kv.Put(svcKey, value, nil)
	if err != nil {
		return errors.Wrapf(err, "error sending service to store: %v", svc)
	}

	// Persisting IPVS key. So it can be validated.
	err = s.kv.Put(ipvsKey, []byte("true"), nil)
	if err != nil {
		return errors.Wrapf(err, "error sending service ipvs id to store: %v", svc.IpvsId())
	}

	return nil
}
Example #2
0
func (s *FusisStore) DeleteService(svc *types.Service) error {
	// TODO: Make all these actions atomic

	key := s.key("services", svc.GetId())
	err := s.kv.DeleteTree(key)
	if err != nil {
		return errors.Wrapf(err, "error trying to delete service: %v", svc)
	}

	ipvsKey := s.key("ipvs-ids", "services", svc.IpvsId())
	err = s.kv.Delete(ipvsKey)
	if err != nil {
		return errors.Wrapf(err, "error trying to delete service ipvs id: %s", ipvsKey)
	}

	// Deleting dependent destionations
	dsts, err := s.GetDestinations()
	if err != nil {
		return errors.Wrapf(err, "get destinations from deleted service failed: %#v", svc)
	}

	for _, dst := range dsts {
		if dst.ServiceId == svc.GetId() {
			if err := s.DeleteDestination(svc, &dst); err != nil {
				return errors.Wrap(err, "deleting dependent destination failed")
			}
		}
	}

	// Deleting checks
	exists, err := s.kv.Exists(s.key("checks", svc.GetId()))
	if err != nil {
		return errors.Wrapf(err, "verifying health check to service: %s failed", svc.GetId())
	}

	if exists {
		if err := s.DeleteCheck(types.CheckSpec{ServiceID: svc.GetId()}); err != nil {
			return errors.Wrap(err, "deleting dependent check failed")
		}
	}

	return nil
}