public static String getOnlineNodePath(final InstanceType instanceType) {
        return String.join("/", "", ROOT_NODE, COMPUTE_NODE, ONLINE_NODE, instanceType.name().toLowerCase());
    }
@Test
    void assertGetOnlineNodePath() {
        assertThat(ComputeNode.getOnlineNodePath(InstanceType.PROXY), is("/nodes/compute_nodes/online/proxy"));
        assertThat(ComputeNode.getOnlineNodePath(InstanceType.JDBC), is("/nodes/compute_nodes/online/jdbc"));
    }