title: Kubernetes: Ingress doesn't have IP address
body: <p>I setup a 3 nodes K8S cluster locally with virtualbox. When I try out the ingress, it doesn't setup the IP address:</p>
  
  <pre><code>2017-11-11 17:00:49.015691 I | proto: duplicate proto type registered: 
  google.protobuf.Any
  2017-11-11 17:00:49.016061 I | proto: duplicate proto type registered: google.protobuf.Duration
  2017-11-11 17:00:49.016112 I | proto: duplicate proto type registered: google.protobuf.Timestamp
  NAME            HOSTS                     ADDRESS   PORTS     AGE
  whale-ingress   a.whale.hey,b.whale.hey             80        9m
  </code></pre>
  
  <p>Ingress:</p>
  
  <pre><code>apiVersion: extensions/v1beta1
  kind: Ingress
  metadata:
    name: whale-ingress
  spec:
    rules:
    - host: a.whale.hey
      http:
        paths:
        - path: /
          backend:
            serviceName: whale-svc-a
            servicePort: 80
    - host: b.whale.hey
      http:
        paths:
        - path: /
          backend:
            serviceName: whale-svc-b
            servicePort: 80
  </code></pre>
  
  <p>Did I set something wrong?</p>