@Override
    protected void doCloseAsync(CompletableFuture<?> future) {
        closed = true;
        closeResources();
        if (autoClose) {
            client.close();
        }
        super.doCloseAsync(future);
    }
Fetches the internal IPs of the node.
kubernetes/src/main/java/com/linecorp/armeria/client/kubernetes/endpoints/KubernetesEndpointGroup.java