Support Arc Zonal Shift Attributes

[gallowaystorm]

Describe the feature you are requesting
To be able to enable arc zonal shift from the load balancer controller.

Motivation
This will allow code to control the configuration of arc zonal shift on load balancer to allow for High Availability recovery and testing

Describe the proposed solution you'd like
Fully support enabling it via the load balancer attributes - right now the attribute being set in the ingress object does not work.

Describe alternatives you've considered

Contribution Intention (Optional)

• Yes, I am willing to contribute a PR to implement this feature
• No, I cannot work on a PR at this time

[shraddhabang]

Hi @gallowaystorm , this should already be supported via the load-balancer-attributes annotation. The controller passes all attribute key-value pairs directly to the ELBv2 API without any filtering.

Can you share what configuration did not work for you?

Can you try the following Ingress and let us know if it works for your setup?

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: arc-zonal-shift-test
  namespace: default
  annotations:
    alb.ingress.kubernetes.io/scheme: internet-facing
    alb.ingress.kubernetes.io/target-type: ip
    alb.ingress.kubernetes.io/load-balancer-attributes: zonal_shift.config.enabled=true
spec:
  ingressClassName: alb 
  rules:
    - http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: your-service
                port:
                  number: 80