Support for ingress.kubernetes.io/app-root

[martivo]

I would like to create an annotation that returns 302 redirect to specified path when the root path is visited. The application will not work if rewrite is used for the backend. The end user browser needs to be redirected to specified path.

I do not wish to use rewrite to the backend. The annotation "haproxy.org/path-rewrite: / /foo" is not doing what I need.

Desired example yaml:

kind: Ingress
metadata:
  annotations:
   ingress.kubernetes.io/app-root: /foo
  name: example
spec:
  ingressClassName: haproxy
  rules:
  - host: example.com
    http:
      paths:
      - backend:
          service:
            name: example
            port:
              number: 8080
        path: /
        pathType: Prefix

Wen visiting / haproxy should return 302 to /foo. Is there a workaround to achieve this? I know a possible workaround is for the container itself to issue a redirect, but it does not currently and it's not the desired solution.

Other ingress controllers seem to support it: https://haproxy-ingress.github.io/docs/configuration/keys/#app-root https://kubernetes.github.io/ingress-nginx/examples/rewrite/#deployment

The why: https://stackoverflow.com/questions/56349008/when-i-would-use-the-app-root-annotation-in-kubernetes