Fix empty address for registering service without IP

pkg/provider/consulcatalog/config.go

@@ -163,6 +163,10 @@ func (p *Provider) addServerTCP(ctx context.Context, item itemData, loadBalancer
 		return errors.New("port is missing")
 	}
 
+	if item.Address == "" {
+		return errors.New("address is missing")
+	}
+
 	loadBalancer.Servers[0].Address = net.JoinHostPort(item.Address, port)
 	return nil
 }
@@ -193,6 +197,10 @@ func (p *Provider) addServer(ctx context.Context, item itemData, loadBalancer *d
 		return errors.New("port is missing")
 	}
 
+	if item.Address == "" {
+		return errors.New("address is missing")
+	}
+
 	loadBalancer.Servers[0].URL = fmt.Sprintf("%s://%s", loadBalancer.Servers[0].Scheme, net.JoinHostPort(item.Address, port))
 	loadBalancer.Servers[0].Scheme = ""
 

pkg/provider/consulcatalog/consul_catalog.go

@@ -157,10 +157,15 @@ func (p *Provider) getConsulServicesData(ctx context.Context) ([]itemData, error
 
 		for _, consulService := range consulServices {
 			labels := tagsToNeutralLabels(consulService.ServiceTags, p.Prefix)
+			address := consulService.ServiceAddress
+			if address == "" {
+				address = consulService.Address
+			}
+
 			item := itemData{
 				ID:      consulService.ServiceID,
 				Name:    consulService.ServiceName,
-				Address: consulService.ServiceAddress,
+				Address: address,
 				Port:    strconv.Itoa(consulService.ServicePort),
 				Labels:  labels,
 				Status:  consulService.Checks.AggregatedStatus(),