Use service alias and configure container's --net-alias

Signed-off-by: Madhu Venugopal <madhu@docker.com>

container/container.go

@@ -823,7 +823,7 @@ func (container *Container) BuildCreateEndpointOptions(n libnetwork.Network, epC
 			})
 		}
 
-		createOptions = append(createOptions, libnetwork.CreateOptionService(svcCfg.Name, svcCfg.ID, net.ParseIP(vip), portConfigs))
+		createOptions = append(createOptions, libnetwork.CreateOptionService(svcCfg.Name, svcCfg.ID, net.ParseIP(vip), portConfigs, svcCfg.Aliases[n.ID()]))
 	}
 
 	if !containertypes.NetworkMode(n.Name()).IsUserDefined() {

daemon/cluster/cluster.go

@@ -918,7 +918,7 @@ func populateNetworkID(ctx context.Context, c swarmapi.ControlClient, s *types.S
 		if err != nil {
 			return err
 		}
-		s.Networks[i] = types.NetworkAttachmentConfig{Target: apiNetwork.ID}
+		s.Networks[i].Target = apiNetwork.ID
 	}
 	return nil
 }

daemon/cluster/executor/container/adapter.go

@@ -126,7 +126,6 @@ func (c *containerAdapter) create(ctx context.Context, backend executorpkg.Backe
 
 	if nc != nil {
 		for n, ep := range nc.EndpointsConfig {
-			logrus.Errorf("CONNECT %s : %v", n, ep.IPAMConfig.IPv4Address)
 			if err := backend.ConnectContainerToNetwork(cr.ID, n, ep); err != nil {
 				return err
 			}

daemon/cluster/executor/container/container.go

@@ -348,6 +348,7 @@ func (c *containerConfig) serviceConfig() *clustertypes.ServiceConfig {
 	log.Printf("Creating service config in agent for t = %+v", c.task)
 	svcCfg := &clustertypes.ServiceConfig{
 		Name:             c.task.ServiceAnnotations.Name,
+		Aliases:          make(map[string][]string),
 		ID:               c.task.ServiceID,
 		VirtualAddresses: make(map[string]*clustertypes.VirtualAddress),
 	}
@@ -357,6 +358,9 @@ func (c *containerConfig) serviceConfig() *clustertypes.ServiceConfig {
 			// We support only IPv4 virtual IP for now.
 			IPv4: c.virtualIP(na.Network.ID),
 		}
+		if len(na.Aliases) > 0 {
+			svcCfg.Aliases[na.Network.ID] = na.Aliases
+		}
 	}
 
 	if c.task.Endpoint != nil {

daemon/cluster/provider/network.go

@@ -31,6 +31,7 @@ type PortConfig struct {
 type ServiceConfig struct {
 	ID               string
 	Name             string
+	Aliases          map[string][]string
 	VirtualAddresses map[string]*VirtualAddress
 	ExposedPorts     []*PortConfig
 }