if clientConf.URL != nil {
			result, err := lintWebhookURL(*clientConf.URL)
			if err != nil {
				c.Report(gvk.ValidatingWebhookConfiguration, msg.NewInvalidExternalControlPlaneConfig(r, *clientConf.URL, hName, err.Error()))
				return
			}
			if result.isIP() {
				c.Report(gvk.ValidatingWebhookConfiguration, msg.NewExternalControlPlaneAddressIsNotAHostname(r, *clientConf.URL, hName))
			}

	return diag.NewMessage(
		GatewayPortNotDefinedOnService,
		r,
		port,
		selector,
	)
}

// NewInvalidExternalControlPlaneConfig returns a new diag.Message based on InvalidExternalControlPlaneConfig.
func NewInvalidExternalControlPlaneConfig(r *resource.Instance, hostname string, webhook string, msg string) diag.Message {
	return diag.NewMessage(
		InvalidExternalControlPlaneConfig,
		r,