List clusters

namespace cbt = ::google::cloud::bigtable;
namespace cbta = ::google::cloud::bigtable_admin;
using ::google::cloud::StatusOr;
[](cbta::BigtableInstanceAdminClient instance_admin,
   std::string const& project_id, std::string const& instance_id) {
  std::string instance_name = cbt::InstanceName(project_id, instance_id);
  StatusOr<google::bigtable::admin::v2::ListClustersResponse> clusters =
      instance_admin.ListClusters(instance_name);
  if (!clusters) throw std::move(clusters).status();
  std::cout << "Cluster Name List\n";
  for (auto const& cluster : clusters->clusters()) {
    std::cout << "Cluster Name:" << cluster.name() << "\n";
  }
  if (!clusters->failed_locations().empty()) {
    std::cout << "The Cloud Bigtable service reports that the following "
                 "locations are temporarily unavailable and no information "
                 "about clusters in these locations can be obtained:\n";
    for (auto const& failed_location : clusters->failed_locations()) {
      std::cout << failed_location << "\n";
    }
  }
}
namespace cbt = ::google::cloud::bigtable;
namespace cbta = ::google::cloud::bigtable_admin;
using ::google::cloud::StatusOr;
[](cbta::BigtableInstanceAdminClient instance_admin,
   std::string const& project_id) {
  std::string instance_name = cbt::InstanceName(project_id, "-");
  StatusOr<google::bigtable::admin::v2::ListClustersResponse> clusters =
      instance_admin.ListClusters(instance_name);
  if (!clusters) throw std::move(clusters).status();
  std::cout << "Cluster Name List\n";
  for (auto const& cluster : clusters->clusters()) {
    std::cout << "Cluster Name:" << cluster.name() << "\n";
  }
  if (!clusters->failed_locations().empty()) {
    std::cout << "The Cloud Bigtable service reports that the following "
                 "locations are temporarily unavailable and no information "
                 "about clusters in these locations can be obtained:\n";
    for (auto const& failed_location : clusters->failed_locations()) {
      std::cout << failed_location << "\n";
    }
  }
}

try {
  List<Cluster> clusters = adminClient.listClusters(instanceId);
  for (Cluster cluster : clusters) {
    System.out.println(cluster.getId());
  }
} catch (NotFoundException e) {
  System.err.println("Failed to list clusters from a non-existent instance: " + e.getMessage());
}

const instance3 = bigtable.instance(instanceID);
const [clusters] = await instance3.getClusters();
clusters.forEach(cluster => {
  console.log(cluster.id);
});

use Google\Cloud\Bigtable\Admin\V2\Client\BigtableInstanceAdminClient;
use Google\Cloud\Bigtable\Admin\V2\ListClustersRequest;

/**
 * List clusters of an instance
 *
 * @param string $projectId The Google Cloud project ID
 * @param string $instanceId The ID of the Bigtable instance
 */
function list_instance_clusters(
    string $projectId,
    string $instanceId
): void {
    $instanceAdminClient = new BigtableInstanceAdminClient();

    $projectName = $instanceAdminClient->projectName($projectId);
    $instanceName = $instanceAdminClient->instanceName($projectId, $instanceId);

    printf('Listing Clusters:' . PHP_EOL);
    $listClustersRequest = (new ListClustersRequest())
        ->setParent($instanceName);
    $getClusters = $instanceAdminClient->listClusters($listClustersRequest)->getClusters();
    $clusters = $getClusters->getIterator();

    foreach ($clusters as $cluster) {
        print($cluster->getName() . PHP_EOL);
    }
}

print("\nListing clusters...")
for cluster in instance.list_clusters()[0]:
    print(cluster.cluster_id)

# instance_id = "my-instance"
bigtable.instance(instance_id).clusters.all do |cluster|
  puts "Cluster: #{cluster.cluster_id}"
end