ingress-nginx: GCE health check does not pick up changes to pod readinessProbe

Importing this issue from https://github.com/kubernetes/kubernetes/issues/43773 as requested.

Kubernetes version (use kubectl version): 1.4.9

Environment:

• Cloud provider or hardware configuration: GKE
• OS (e.g. from /etc/os-release):
• Kernel (e.g. uname -a):
• Install tools:
• Others:

What happened:

I created an ingress with type GCE

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: admin-proxy
  labels:
    name: admin-proxy
  annotations:
    kubernetes.io/ingress.allow-http: "false"
spec:
  tls:
    - secretName: ingress-admin-proxy
  backend:
    serviceName: admin-proxy
    servicePort: 80

This set up the health-check on the google cloud backend endpoint to call “/” as documented.

Unfortunately my service doesn’t return 200 on "/" and so I added a readinessCheck to the pod as suggested by the documentation.

What you expected to happen:

I expected the health check to be automatically updated.

Instead I had to delete the ingress and re-create it in order for the health-check to update.

How to reproduce it (as minimally and precisely as possible):

1. Create a deployment with no readiness probe.
2. Create an ingress pointing to the pods created by that deployment.
3. Add a readiness probe to the deployment.

Anything else we need to know: