Setting EnvoyService to NodePort type has a bug when total number of k8s nodes > 16

[ryanhristovski]

Description:
When EnvoyService is set to type NodePort we are seeing the following error:

status.addresses: Too many. Must have at most 16 items

When the service is of type NodePort, the address is set to all of the node addresses, as seen here:

gateway/internal/gatewayapi/status/gateway.go

Line 73 in c752b88

if svc.Spec.Type == corev1.ServiceTypeNodePort {

Repro steps:

1. Have a Kubernetes environment with > 16 nodes
2. Set EnvoyService type to NodePort:

    envoyService:
      type: NodePort

3. Read logs from envoy gateway

Environment:
Gateway version: v1.0.1
Envoy version: v1.29

Logs:

2024-06-24T15:18:20.599Z	ERROR	provider	kubernetes/status_updater.go:115	unable to update status	{"runner": "provider", "name": "gateway", "namespace": "...", "error": "Gateway.gateway.networking.k8s.io "gateway" is invalid: status.addresses: Too many: 67: must have at most 16 items"}

[arkodg]

this is due to the limit set in the CRD
https://github.com/kubernetes-sigs/gateway-api/blob/c1b375bda97d344948a50ebd40814ffcd68b78ac/apis/v1/gateway_types.go#L641

to improve user experience, we should be limiting the value to 16 entries and appending the status message to mention that we did this

[sanposhiho]

/assign