I've created a test k8s cluster using kubespray (3 nodes, virtualbox centos vm based) and have been trying to follow the guide for setting up nginx ingress, but i never seem to get an external address assigned to my service:

I can see that the ingress controller is apparently installed:

[root@k8s-01 ~]# kubectl get pods --all-namespaces -l app=ingress-nginx
NAMESPACE       NAME                                        READY     STATUS    RESTARTS   AGE
ingress-nginx   nginx-ingress-controller-58c9df5856-v6hml   1/1       Running   0          28m

And following the prerequisites docs, i have set up the http-svc sample service:

[root@k8s-01 ~]# kubectl get po
NAME                       READY     STATUS    RESTARTS   AGE
http-svc-794dc89f5-f2vlx   1/1       Running   0          27m

[root@k8s-01 ~]# kubectl get svc http-svc
NAME         TYPE           CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE
http-svc     LoadBalancer   10.233.25.131   <pending>     80:30055/TCP   27m

[root@k8s-01 ~]# kubectl describe svc http-svc
Name:                     http-svc
Namespace:                default
Labels:                   app=http-svc
Annotations:              <none>
Selector:                 app=http-svc
Type:                     LoadBalancer
IP:                       10.233.25.131
Port:                     http  80/TCP
TargetPort:               8080/TCP
NodePort:                 http  30055/TCP
Endpoints:                10.233.65.5:8080
Session Affinity:         None
External Traffic Policy:  Cluster
Events:
  Type    Reason  Age   From                Message
  ----    ------  ----  ----                -------
  Normal  Type    27m   service-controller  ClusterIP -> LoadBalancer

As far as i know, i should see a LoadBalancer Ingress entry, but the External IP for the service still appears to be pending, so something isn't working, but i'm at a loss where to diagnose what has gone wrong