private List<Pod> selfPod() {
        Pod v1Pod = new Pod();
        v1Pod.setMetadata(new ObjectMeta());
        v1Pod.setStatus(new PodStatus());
        v1Pod.getMetadata().setUid(uid);
        v1Pod.getStatus().setPodIP("127.0.0.1");
        return Collections.singletonList(v1Pod);
    }
Read collector pod info from api-server of kubernetes, then using all containerIp list to construct the list of
{@link RemoteInstance}.
oap-server/server-cluster-plugin/cluster-kubernetes-plugin/src/main/java/org/apache/skywalking/oap/server/cluster/plugin/kubernetes/KubernetesCoordinator.java