When configuring a custom DNS name for the Kube API Server using spec.kubeAPIServerDNSName, it generates a custom-admin-kubeconfig.

Even when the HostedCluster is explicitly configured to use a NodePort publishing strategy (where the port is defined in status.controlPlaneEndpoint.port), the generated custom kubeconfig ignores this value and defaults the server URL to port 6443.

    HCP 4.20.6

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1. Create a HostedCluster with APIServer service strategy set to NodePort.
2. Define spec.kubeAPIServerDNSName with a custom FQDN (e.g., api-custom.example.com).
3. Provide the necessary servingCerts configuration.
4. Extract the generated secret <cluster-name>-custom-admin-kubeconfig.
5. Check the server: entry in the kubeconfig.     

The kubeconfig server URL defaults to 6443:
https://api-custom.example.com:6443    

The kubeconfig server URL should respect the NodePort assigned to the APIServer service:
https://api-custom.example.com:<nodeport_value>