public static String getInstanceWorkerIdNodePath(final String instanceId) {
        return String.join("/", "", ROOT_NODE, COMPUTE_NODE, WORKER_ID, instanceId);
    }
@Test
    void assertGetInstanceWorkerIdNodePath() {
        assertThat(ComputeNode.getInstanceWorkerIdNodePath("foo_instance"), is("/nodes/compute_nodes/worker_id/foo_instance"));
    }