String getServiceDns() {
        return serviceDns;
    }
@Test
    public void propertyServiceNameIsEmpty() {
        // given
        Map<String, Comparable> properties = createProperties();
        properties.put(SERVICE_NAME.key(), "  ");
        String serviceDns = "service-dns";
        properties.put(SERVICE_DNS.key(), serviceDns);

        //when
        KubernetesConfig config = new KubernetesConfig(properties);

        //then
        assertEquals(serviceDns, config.getServiceDns());

    }