IP address for Ingress with Traefik

[echarles]

The ingress created by traefik do not show IP address, this can be tricky if an External DNS system is used to automatically create the DNS entry.

NAMESPACE            NAME                                         CLASS               HOSTS               ADDRESS   PORTS     AGE
datalayer-api        iam-ingress                                  datalayer-traefik   oss.datalayer.run             80, 443   32h
datalayer-api        jupyter-ingress                              datalayer-traefik   oss.datalayer.run             80, 443   32h
datalayer-api        jupyter-server-ingress                       datalayer-traefik   oss.datalayer.run             80, 443   53d
datalayer-api        library-ingress                              datalayer-traefik   oss.datalayer.run             80, 443   32h
datalayer-api        spacer-ingress                               datalayer-traefik   oss.datalayer.run             80, 443   32h

@tyu0912 has come with a fix for that. We should enroll that fix.

kubernetesIngress:
  ingressClass: "datalayer-traefik"
  ingressEndpoint:
    publishedService: "datalayer-traefik/datalayer-traefik"

[tyu0912]

Here is some documentation for the configuration: https://doc.traefik.io/traefik/providers/kubernetes-ingress/#publishedservice + setting in the latest chart: https://github.com/traefik/traefik-helm-chart/blob/master/traefik/values.yaml#L285