Add -host flag to expose command

command/connect/expose/expose.go

@@ -30,6 +30,7 @@ type cmd struct {
 	service        string
 	port           int
 	protocol       string
+	hosts          flags.AppendSliceValue
 }
 
 func (c *cmd) init() {
@@ -48,6 +49,9 @@ func (c *cmd) init() {
 	c.flags.StringVar(&c.protocol, "protocol", "tcp",
 		"The protocol for the service. Defaults to 'tcp'.")
 
+	c.flags.Var(&c.hosts, "host", "Additional DNS hostname to use for routing to this service."+
+		"Can be specified multiple times.")
+
 	c.http = &flags.HTTPFlags{}
 	flags.Merge(c.flags, c.http.ClientFlags())
 	flags.Merge(c.flags, c.http.ServerFlags())
@@ -144,6 +148,7 @@ func (c *cmd) Run(args []string) int {
 		ingressConf.Listeners[listenerIdx].Services = append(ingressConf.Listeners[listenerIdx].Services, api.IngressService{
 			Name:      svc,
 			Namespace: svcNamespace,
+			Hosts:     c.hosts,
 		})
 	} else {
 		ingressConf.Listeners = append(ingressConf.Listeners, api.IngressListener{
@@ -153,6 +158,7 @@ func (c *cmd) Run(args []string) int {
 				{
 					Name:      svc,
 					Namespace: svcNamespace,
+					Hosts:     c.hosts,
 				},
 			},
 		})

command/connect/expose/expose_test.go

@@ -279,6 +279,8 @@ func TestConnectExpose_existingConfig(t *testing.T) {
 			"-ingress-gateway=ingress",
 			"-port=9999",
 			"-protocol=http",
+			"-host=foo.com",
+			"-host=foo.net",
 		}
 
 		code := c.Run(args)
@@ -291,7 +293,8 @@ func TestConnectExpose_existingConfig(t *testing.T) {
 		require.NoError(err)
 
 		ingressConf.Listeners[1].Services = append(ingressConf.Listeners[1].Services, api.IngressService{
-			Name: "zoo",
+			Name:  "zoo",
+			Hosts: []string{"foo.com", "foo.net"},
 		})
 		ingressConf.CreateIndex = entry.GetCreateIndex()
 		ingressConf.ModifyIndex = entry.GetModifyIndex()

website/pages/docs/commands/connect/expose.mdx

@@ -40,12 +40,15 @@ Usage: consul connect expose [options]
 - `-port` - (Required) The listener port to use for the service on the Ingress
   gateway.
 
-- `-protocol` - The protocol for the service. Defaults to 'tcp'.
-
 - `-service` - (Required) The name of destination service to expose. A namespace
   can optionally be specified as a prefix via the 'namespace/service'
   format.
 
+- `-protocol` - The protocol for the service. Defaults to 'tcp'.
+
+- `-host` - Additional DNS hostname to use for routing to this service. Can be 
+  specified multiple times.
+
 ## Examples
 
 The example below shows using the `expose` command to make the `foo` service available