Support for multiple rules in UDPIngress

[rainest]

The v1alpha1 UDPIngress supports a single rule only, represented by the entire spec:

spec:
  host: "9.9.9.9"
  targetPort: 53
  listenPort: 9999

Other Ingress-likes (e.g. below our TCPIngress type) support multiple rules, which can target different Services:

spec:
  rules:
  - host: <SNI, optional>
    port: <port on which to expose this service, required>
    backend:
      serviceName: <name of the kubernetes service, required>
      servicePort: <port number to forward on the service, required>

The same is true for the Gateway TCPRoute spec. UDPRoute would presumably be similar.

 func fromUDPIngressV1Alpha1(log logrus.FieldLogger, ingressList []*v1alpha1.UDPIngress) ingressRules {
		result.ServiceNameToServices[ingress.Namespace+"."+ingress.Name] = kongstate.Service{
			Service: kong.Service{
				Name:     kong.String(ingress.Namespace + "." + ingress.Name),

See also: #1080

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.