Node port allocation [1] cannot be disabled in LoadBalancer type services. CCM will prevent LB creation because the `ProtocolPort` parameter is missing:
"Missing input for argument [ProtocolPort]"

4.12.0-0.nightly-2022-08-30-054458

Always

1. Create the svc with allocateLoadBalancerNodePorts: false

$ oc create -f no-nodeport-manifests.yaml
project.project.openshift.io/lb-no-nodeport-ns created
deployment.apps/lb-no-nodeport-dep created                              
service/lb-no-nodeport-svc created

2. Check svc and LB creation

$ oc -n lb-no-nodeport-ns describe svc lb-no-nodeport-svc
[...]
Events:
  Type     Reason                  Age                    From                Message
  ----     ------                  ----                   ----                -------
  Warning  SyncLoadBalancerFailed  3m17s (x4 over 3m53s)  service-controller  Error syncing load balancer: failed to ensure load balancer: error creating loadbalancer kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc: error creating loadbalancer {"name":"kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc","description":"Kubernetes external service lb-no-nodeport-ns/lb-no-nodeport-svc from cluster kubernetes","vip_subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027","provider":"amphora","listeners":[{"protocol":"TCP","protocol_port":80,"name":"listener_0_kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc","default_pool":{"lb_algorithm":"ROUND_ROBIN","protocol":"TCP","name":"pool_0_kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc","members":[{"address":"10.196.1.207","protocol_port":0,"name":"ostest-55d8f-master-2","subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027"},{"address":"10.196.0.131","protocol_port":0,"name":"ostest-55d8f-master-1","subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027"},{"address":"10.196.1.42","protocol_port":0,"name":"ostest-55d8f-master-0","subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027"},{"address":"10.196.0.103","protocol_port":0,"name":"ostest-55d8f-worker-0-6rw6v","subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027"},{"address":"10.196.0.222","protocol_port":0,"name":"ostest-55d8f-worker-0-q42h6","subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027"}]},"connection_limit":-1,"timeout_client_data":50000,"timeout_member_data":50000,"timeout_member_connect":5000,"timeout_tcp_inspect":0,"allowed_cidrs":["0.0.0.0/0"],"tags":["kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc"]}],"tags":["kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc"]}: Missing input for argument [ProtocolPort]
  Warning  SyncLoadBalancerFailed  2m36s                  service-controller  Error syncing load balancer: failed to ensure load balancer: error creating loadbalancer kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc: error creating loadbalancer {"name":"kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc","description":"Kubernetes external service lb-no-nodeport-ns/lb-no-nodeport-svc from cluster kubernetes","vip_subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027","provider":"amphora","listeners":[{"protocol":"TCP","protocol_port":80,"name":"listener_0_kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc","default_pool":{"lb_algorithm":"ROUND_ROBIN","protocol":"TCP","name":"pool_0_kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc","members":[{"address":"10.196.0.222","protocol_port":0,"name":"ostest-55d8f-worker-0-q42h6","subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027"},{"address":"10.196.1.207","protocol_port":0,"name":"ostest-55d8f-master-2","subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027"},{"address":"10.196.0.131","protocol_port":0,"name":"ostest-55d8f-master-1","subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027"},{"address":"10.196.1.42","protocol_port":0,"name":"ostest-55d8f-master-0","subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027"},{"address":"10.196.0.103","protocol_port":0,"name":"ostest-55d8f-worker-0-6rw6v","subnet_id":"cda25f0b-5dcf-49be-801e-ce5a74aee027"}]},"connection_limit":-1,"timeout_client_data":50000,"timeout_member_data":50000,"timeout_member_connect":5000,"timeout_tcp_inspect":0,"allowed_cidrs":["0.0.0.0/0"],"tags":["kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc"]}],"tags":["kube_service_kubernetes_lb-no-nodeport-ns_lb-no-nodeport-svc"]}: Missing input for argument [ProtocolPort] 

$ oc -n lb-no-nodeport-ns get svc
NAME                 TYPE           CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE
lb-no-nodeport-svc   LoadBalancer   172.30.153.11   <pending>     80/TCP    5m58s

$ oc -n lb-no-nodeport-ns get svc lb-no-nodeport-svc -o yaml
apiVersion: v1
kind: Service
metadata:
  creationTimestamp: "2022-09-06T08:08:06Z"
  finalizers:
  - service.kubernetes.io/load-balancer-cleanup
  labels:
    app: lb-no-nodeport-dep
  name: lb-no-nodeport-svc
  namespace: lb-no-nodeport-ns
  resourceVersion: "3621284"
  uid: f7574fd8-c6f8-4950-b7ad-00e5136ba291
spec:
  allocateLoadBalancerNodePorts: false
  clusterIP: 172.30.153.11
  clusterIPs:
  - 172.30.153.11
  externalTrafficPolicy: Cluster
  internalTrafficPolicy: Cluster
  ipFamilies:
  - IPv4
  ipFamilyPolicy: SingleStack
  ports:
  - port: 80
    protocol: TCP
    targetPort: 8080
  selector:
    app: lb-no-nodeport-dep
  sessionAffinity: None
  type: LoadBalancer
status:
  loadBalancer: {}

$ openstack loadbalancer list
(empty)

LB should be created and a FIP assigned to the svc although the connectivity from the LB to the endpoint pods (without NodePort) is not expected to work.

This issue has been discovered when running a k8s conformance test [2], after enabling it for openstack platform (but it's not expected to pass).