static ConfigServer[] toConfigServers(String configserversString) {
        return multiValueParameterStream(configserversString)
                .map(CloudConfigInstallVariables::toConfigServer)
                .toArray(ConfigServer[]::new);
    }
@Test
    public void port_can_be_configured() {
        CloudConfigOptions.ConfigServer[] parsed = toConfigServers("myhost:123");
        int port = parsed[0].port.get();
        assertEquals(123, port);
    }