title: My kubernetes AWS NLB integration is not working
body: <p>I am trying to deploy a service in Kubernetes available through a network load balancer. I am aware this is an alpha feature at the moment, but I am running some tests. I have a deployment definition that is working fine as is. My service definition without the nlb annotation looks something like this and is working fine:</p>
  
  <pre><code>kind: Service
  apiVersion: v1
  metadata:
    name: service1
    annotations:
      service.beta.kubernetes.io/aws-load-balancer-backend-protocol: http
      service.beta.kubernetes.io/aws-load-balancer-internal: 0.0.0.0/0
  spec:
    type: LoadBalancer
    selector:
      app: some-app
    ports:
    - port: 80
      protocol: TCP
  </code></pre>
  
  <p>However, when I switch to NLB, even when the load balancer is created and configured "correctly", the target in the AWS target group always appears unhealthy and I cannot access the service via HTTP. This is the service definition:</p>
  
  <pre><code>kind: Service
  apiVersion: v1
  metadata:
    name: service1
    annotations:
      service.beta.kubernetes.io/aws-load-balancer-backend-protocol: http
      service.beta.kubernetes.io/aws-load-balancer-internal: 0.0.0.0/0
      service.beta.kubernetes.io/aws-load-balancer-type: "nlb"
  spec:
    type: LoadBalancer
    selector:
      app: some-app
    ports:
    - port: 80
      protocol: TCP
    externalTrafficPolicy: Local
  </code></pre>