@Override
    public Set<K8sHost> hosts() {
        return hostStore.hosts();
    }
@Test
    public void testGetAllHosts() {
        assertEquals(ERR_SIZE, 2, target.hosts().size());
        assertTrue(ERR_NOT_FOUND, target.hosts().contains(HOST_2));
        assertTrue(ERR_NOT_FOUND, target.hosts().contains(HOST_3));
    }