isolated port for GetAPIServerEndpoint
isolated port for GetAPIServerEndpoint

Restrict Kubernetes GetAPIServerEndpoint result to return the zeroth port associated with the connections. This could occur under certain HAProxy configurations
kubernetes-sigs/sig-windows-tools,kubernetes-sigs/sig-windows-tools,kubernetes-sigs/sig-windows-tools,kubernetes-sigs/sig-windows-tools,kubernetes-sigs/sig-windows-tools