Elastica\Client::getCluster PHP Method

    public function getCluster()
    {
        return new Cluster($this);
    }

 protected function execute(Console\Input\InputInterface $input, Console\Output\OutputInterface $output)
 {
     $table = new Console\Helper\TableHelper();
     $output->writeln('Cluster overview:');
     $output->writeln('');
     $output->writeln('Nodes:');
     $cluster = $this->elastica->getCluster();
     $table->setHeaders(['name', 'documents', 'node', 'ip', 'port', 'hostname', 'version', 'transport address', 'http address']);
     $nodes = $cluster->getNodes();
     foreach ($nodes as $node) {
         $name = $node->getName();
         $ip = $node->getInfo()->getIp();
         $data = $node->getInfo()->getData();
         $port = $node->getInfo()->getPort();
         $stats = $node->getStats()->get();
         //dump($stats->get());exit;
         $table->addRow([$data['name'], $stats['indices']['docs']['count'], $name, $ip, $port, $data['hostname'], $data['version'], $data['transport_address'], $data['http_address']]);
     }
     $table->render($output);
     $table->setRows([]);
     /* INFO */
     $info = $this->elastica->request('', 'GET')->getData();
     $table->setHeaders(['name', 'version', 'status', 'ok']);
     $table->addRow([$info['name'], $info['version']['number'], $info['status'], $info['ok']]);
     $table->render($output);
     $table->setRows([]);
     $output->writeln('');
 }