Create network LoadBalancer service, but always get Connection time out when accessing the LB

4.12.0-0.nightly-2022-10-27-135134

100%

1. create custom ingresscontroller that using Network LB service

$ Domain="nlb.$(oc get dns.config cluster -o=jsonpath='{.spec.baseDomain}')"
$ oc create -f - << EOF
kind: IngressController
apiVersion: operator.openshift.io/v1
metadata:
  name: nlb
  namespace: openshift-ingress-operator
spec:
  domain: ${Domain}
  replicas: 3
  endpointPublishingStrategy:
    loadBalancer:
      providerParameters:
        aws:
          type: NLB
        type: AWS
      scope: External
    type: LoadBalancerService
EOF


2. wait for the ingress NLB service is ready.

$ oc -n openshift-ingress get svc/router-nlb
NAME         TYPE           CLUSTER-IP      EXTERNAL-IP                                                                     PORT(S)                      AGE
router-nlb   LoadBalancer   172.30.75.134   a765a5eb408aa4a68988e35b72672379-78a76c339ded64fa.elb.us-east-2.amazonaws.com   80:31833/TCP,443:32499/TCP   117s


3. curl the network LB

$ curl a765a5eb408aa4a68988e35b72672379-78a76c339ded64fa.elb.us-east-2.amazonaws.com -I
<hang>

Connection time out

curl should return 503

the NLB service has the annotation:
  service.beta.kubernetes.io/aws-load-balancer-type: nlb