restrict dual-stack-without-ipv4 e2e test to pdx only (#3700)

Author: oliviassss

test/e2e/ingress/vanilla_ingress_test.go

@@ -745,7 +745,12 @@ var _ = Describe("vanilla ingress tests", func() {
 			}
 
 			if tf.Options.IPFamily == "IPv6" {
-				annotation["alb.ingress.kubernetes.io/ip-address-type"] = "dualstack-without-public-ipv4"
+				// TODO: annotate to "dualstack-without-public-ipv4" for all regions once it's GA
+				if tf.Options.AWSRegion == "us-west-2" {
+					annotation["alb.ingress.kubernetes.io/ip-address-type"] = "dualstack-without-public-ipv4"
+				} else {
+					annotation["alb.ingress.kubernetes.io/ip-address-type"] = "dualstack"
+				}
 			}
 
 			ing := ingBuilder.

test/framework/utils/poll.go

@@ -13,5 +13,5 @@ const (
 	// IngressReconcileTimeout is the timeout we expected the controller finishes reconcile for Ingresses.
 	IngressReconcileTimeout = 1 * time.Minute
 	// IngressDNSAvailableWaitTimeout is the timeout we expect the DNS records of ALB to be propagated.
-	IngressDNSAvailableWaitTimeout = 5 * time.Minute
+	IngressDNSAvailableWaitTimeout = 10 * time.Minute
 )