fix: tests in ipv6 cluster

Author: wweiwei-li

pkg/ingress/model_build_frontend_nlb.go

@@ -5,9 +5,10 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"fmt"
-	"sigs.k8s.io/aws-load-balancer-controller/pkg/shared_constants"
 	"strconv"
 
+	"sigs.k8s.io/aws-load-balancer-controller/pkg/shared_constants"
+
 	awssdk "github.com/aws/aws-sdk-go-v2/aws"
 	ec2types "github.com/aws/aws-sdk-go-v2/service/ec2/types"
 	"github.com/google/go-cmp/cmp"
@@ -690,7 +691,7 @@ func (t *defaultModelBuildTask) buildFrontendNlbTargetGroupSpec(ctx context.Cont
 		TargetType:        elbv2model.TargetTypeALB,
 		Port:              awssdk.Int32(port),
 		Protocol:          tgProtocol,
-		IPAddressType:     elbv2model.TargetGroupIPAddressType(t.loadBalancer.Spec.IPAddressType),
+		IPAddressType:     elbv2model.TargetGroupIPAddressTypeIPv4,
 		HealthCheckConfig: healthCheckConfig,
 	}, nil
 }

test/e2e/ingress/vanilla_ingress_test.go

@@ -851,6 +851,11 @@ var _ = Describe("vanilla ingress tests", func() {
 				"alb.ingress.kubernetes.io/frontend-nlb-scheme":           "internet-facing",
 			}
 
+			if tf.Options.IPFamily == "IPv6" {
+				annotation["alb.ingress.kubernetes.io/ip-address-type"] = "dualstack"
+				annotation["alb.ingress.kubernetes.io/target-type"] = "ip"
+			}
+
 			ing := ingBuilder.
 				AddHTTPRoute("", networking.HTTPIngressPath{Path: "/path", PathType: &exact, Backend: ingBackend}).
 				WithAnnotations(annotation).Build(sandboxNS.Name, "ing")