bug: Ingress Status Load Balancer IPs Not Being Updated

[myoss]

Issue description

Environment

• apisix-ingress-controller version: 1.2.0
• your Kubernetes cluster version: ACK 1.20.4-aliyun.1;
• if you run apisix-ingress-controller in Bare-metal environment, also show your OS version (uname -a): Linux demo 4.19.91-23.al7.x86_64 #1 SMP Tue Mar 23 18:02:34 CST 2021 x86_64 x86_64 x86_64 GNU/Linux

Minimal test code / Steps to reproduce the issue

1. ACK 1.20.4-aliyun.1
2. create Ingress

   
   apiVersion: networking.k8s.io/v1
   kind: Ingress
   metadata:
   name: ingress-demo
   namespace: default
   spec:
   ingressClassName: apisix
   rules:
   - host: demo.example.com
     http:
       paths:
         - backend:
             service:
               name: svc-demo
               port:
                 number: 80
           path: /
           pathType: Prefix

3.

### What's the actual result? (including assertion message & call stack if applicable)
![Snipaste_2021-09-24_18-41-04](https://user-images.githubusercontent.com/6986459/134661969-ec598d35-5359-4126-ad6b-1065212818cd.jpg)

### What's the expected result?
![Snipaste_2021-09-24_18-40-02](https://user-images.githubusercontent.com/6986459/134662520-3089a9c7-0559-4152-b380-a95b7fbd30fe.jpg)

[gxthrj]

I think it should be configured in ACK, Perhaps use SLB with it.

[myoss]

use nginx-ingress is updated, but apisix-ingress not updated.

[tokers]

Thanks for the report, it's an undeveloped feature of ingress, I think we can support it in the next few release cycles.

See:

• https://github.com/projectcontour/contour/blob/main/design/ingress-status-loadbalancer.md
• https://kubernetes.io/docs/reference/kubernetes-api/service-resources/ingress-v1/#IngressStatus

[tokers]

We can make some discussions in the mailing list.

[myoss]

In a planned way?

[tao12345666333]

Thanks! I will reproduce it as soon as possible and try to solve it

[waldemar-kindler]

This issue is a blocker because it breaks the integration with external-dns operator (https://github.com/kubernetes-sigs/external-dns0.

[tao12345666333]

740 has been merged. I will close this one. Feel free to reopen it.

@Bonitas you can try to build apisix-ingress-controller using latest code, or wait for v1.4 release.