Check for endpoints while detecting Consul service changes

provider/consulcatalog/consul_catalog.go

@@ -38,10 +38,11 @@ type Provider struct {
 
 // Service represent a Consul service.
 type Service struct {
-	Name  string
-	Tags  []string
-	Nodes []string
-	Ports []int
+	Name      string
+	Tags      []string
+	Nodes     []string
+	Addresses []string
+	Ports     []int
 }
 
 type serviceUpdate struct {
@@ -188,6 +189,7 @@ func (p *Provider) watchCatalogServices(stopCh <-chan struct{}, watchCh chan<- m
 
 					nodesID := getServiceIds(nodes)
 					ports := getServicePorts(nodes)
+					addresses := getServiceAddresses(nodes)
 
 					if service, ok := current[key]; ok {
 						service.Tags = value
@@ -195,10 +197,11 @@ func (p *Provider) watchCatalogServices(stopCh <-chan struct{}, watchCh chan<- m
 						service.Ports = ports
 					} else {
 						service := Service{
-							Name:  key,
-							Tags:  value,
-							Nodes: nodesID,
-							Ports: ports,
+							Name:      key,
+							Tags:      value,
+							Nodes:     nodesID,
+							Addresses: addresses,
+							Ports:     ports,
 						}
 						current[key] = service
 					}
@@ -338,6 +341,10 @@ func hasServiceChanged(current map[string]Service, previous map[string]Service)
 			if len(addedTagsKeys) > 0 || len(removedTagsKeys) > 0 {
 				return true
 			}
+			addedAddressesKeys, removedAddressesKeys := getChangedStringKeys(value.Addresses, prevValue.Addresses)
+			if len(addedAddressesKeys) > 0 || len(removedAddressesKeys) > 0 {
+				return true
+			}
 			addedPortsKeys, removedPortsKeys := getChangedIntKeys(value.Ports, prevValue.Ports)
 			if len(addedPortsKeys) > 0 || len(removedPortsKeys) > 0 {
 				return true
@@ -383,6 +390,14 @@ func getServicePorts(services []*api.CatalogService) []int {
 	return servicePorts
 }
 
+func getServiceAddresses(services []*api.CatalogService) []string {
+	var serviceAddresses []string
+	for _, service := range services {
+		serviceAddresses = append(serviceAddresses, service.ServiceAddress)
+	}
+	return serviceAddresses
+}
+
 func (p *Provider) healthyNodes(service string) (catalogUpdate, error) {
 	health := p.client.Health()
 	data, _, err := health.Service(service, "", true, &api.QueryOptions{})

provider/consulcatalog/consul_catalog_test.go

@@ -637,6 +637,24 @@ func TestHasServiceChanged(t *testing.T) {
 			},
 			expected: true,
 		},
+		{
+			desc: "Change detected on addresses",
+			current: map[string]Service{
+				"foo-service": {
+					Name:      "foo",
+					Nodes:     []string{"node1"},
+					Addresses: []string{"127.0.0.1"},
+				},
+			},
+			previous: map[string]Service{
+				"foo-service": {
+					Name:      "foo",
+					Nodes:     []string{"node1"},
+					Addresses: []string{"127.0.0.2"},
+				},
+			},
+			expected: true,
+		},
 		{
 			desc: "No Change detected",
 			current: map[string]Service{