Use target port for virtual routers

AppMesh does not support port mappings

pkg/router/appmesh_v1beta2.go

@@ -269,7 +269,7 @@ func (ar *AppMeshv1beta2Router) reconcileVirtualRouter(canary *flaggerv1.Canary,
 		Listeners: []appmeshv1.VirtualRouterListener{
 			{
 				PortMapping: appmeshv1.PortMapping{
-					Port:     appmeshv1.PortNumber(canary.Spec.Service.Port),
+					Port:     ar.getContainerPort(canary),
 					Protocol: protocol,
 				},
 			},

pkg/router/appmesh_v1beta2_test.go

@@ -52,7 +52,7 @@ func TestAppmeshv1beta2Router_Reconcile(t *testing.T) {
 	vnPrimary, err := router.appmeshClient.AppmeshV1beta2().VirtualNodes("default").Get(context.TODO(), primaryName, metav1.GetOptions{})
 	require.NoError(t, err)
 
-	primaryDNS := fmt.Sprintf("%s.%s.svc.cluster.local", primaryName, mocks.appmeshCanary.Namespace)
+	primaryDNS := fmt.Sprintf("%s.%s.svc.cluster.local.", primaryName, mocks.appmeshCanary.Namespace)
 	assert.Equal(t, primaryDNS, vnPrimary.Spec.ServiceDiscovery.DNS.Hostname)
 
 	// test backends update