// 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
}
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
}