@Override
    public void registerRemote(final RemoteInstance remoteInstance) throws ServiceRegisterException {
        try {
            this.port = remoteInstance.getAddress().getPort();
            healthChecker.health();
        } catch (Throwable e) {
            healthChecker.unHealth(e);
            throw new ServiceRegisterException(e.getMessage());
        }
    }
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