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Crear instancia

Crea una instancia.

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Para obtener documentación en la que se incluye esta muestra de código, consulta lo siguiente:

Crea y administra instancias

Muestra de código

C++

Para obtener información sobre cómo instalar y usar la biblioteca cliente de Spanner, consulta Bibliotecas cliente de Spanner.

Para autenticarte en Spanner, configura las credenciales predeterminadas de la aplicación. Si deseas obtener más información, consulta Configura la autenticación para un entorno de desarrollo local.

void CreateInstance(google::cloud::spanner_admin::InstanceAdminClient client,
                    std::string const& project_id,
                    std::string const& instance_id,
                    std::string const& display_name,
                    std::string const& config_id) {
  namespace spanner = ::google::cloud::spanner;
  spanner::Instance in(project_id, instance_id);

  auto project = google::cloud::Project(project_id);
  std::string config_name =
      project.FullName() + "/instanceConfigs/" + config_id;
  auto instance =
      client
          .CreateInstance(spanner::CreateInstanceRequestBuilder(in, config_name)
                              .SetDisplayName(display_name)
                              .SetNodeCount(1)
                              .SetLabels({{"cloud_spanner_samples", "true"}})
                              .Build())
          .get();
  if (!instance) throw std::move(instance).status();
  std::cout << "Created instance [" << in << "]:\n" << instance->DebugString();
}

C#

Para obtener información sobre cómo instalar y usar la biblioteca cliente de Spanner, consulta Bibliotecas cliente de Spanner.


using Google.Api.Gax.ResourceNames;
using Google.Cloud.Spanner.Admin.Instance.V1;
using Google.Cloud.Spanner.Common.V1;
using Google.LongRunning;
using System;

public class CreateInstanceSample
{
    public Instance CreateInstance(string projectId, string instanceId)
    {
        // Create the InstanceAdminClient instance.
        InstanceAdminClient instanceAdminClient = InstanceAdminClient.Create();

        // Initialize request parameters.
        Instance instance = new Instance
        {
            InstanceName = InstanceName.FromProjectInstance(projectId, instanceId),
            ConfigAsInstanceConfigName = InstanceConfigName.FromProjectInstanceConfig(projectId, "regional-us-central1"),
            DisplayName = "This is a display name.",
            NodeCount = 1,
            Labels =
            {
                { "cloud_spanner_samples", "true" },
            }
        };
        ProjectName projectName = ProjectName.FromProject(projectId);

        // Make the CreateInstance request.
        Operation<Instance, CreateInstanceMetadata> response = instanceAdminClient.CreateInstance(projectName, instanceId, instance);

        Console.WriteLine("Waiting for the operation to finish.");

        // Poll until the returned long-running operation is complete.
        Operation<Instance, CreateInstanceMetadata> completedResponse = response.PollUntilCompleted();

        if (completedResponse.IsFaulted)
        {
            Console.WriteLine($"Error while creating instance: {completedResponse.Exception}");
            throw completedResponse.Exception;
        }

        Console.WriteLine($"Instance created successfully.");

        return completedResponse.Result;
    }
}

Go

Para obtener información sobre cómo instalar y usar la biblioteca cliente de Spanner, consulta Bibliotecas cliente de Spanner.

import (
	"context"
	"fmt"
	"io"

	instance "cloud.google.com/go/spanner/admin/instance/apiv1"
	"cloud.google.com/go/spanner/admin/instance/apiv1/instancepb"
)

func createInstance(w io.Writer, projectID, instanceID string) error {
	// projectID := "my-project-id"
	// instanceID := "my-instance"
	ctx := context.Background()
	instanceAdmin, err := instance.NewInstanceAdminClient(ctx)
	if err != nil {
		return err
	}
	defer instanceAdmin.Close()

	op, err := instanceAdmin.CreateInstance(ctx, &instancepb.CreateInstanceRequest{
		Parent:     fmt.Sprintf("projects/%s", projectID),
		InstanceId: instanceID,
		Instance: &instancepb.Instance{
			Config:      fmt.Sprintf("projects/%s/instanceConfigs/%s", projectID, "regional-us-central1"),
			DisplayName: instanceID,
			NodeCount:   1,
			Labels:      map[string]string{"cloud_spanner_samples": "true"},
		},
	})
	if err != nil {
		return fmt.Errorf("could not create instance %s: %w", fmt.Sprintf("projects/%s/instances/%s", projectID, instanceID), err)
	}
	// Wait for the instance creation to finish.
	i, err := op.Wait(ctx)
	if err != nil {
		return fmt.Errorf("waiting for instance creation to finish failed: %w", err)
	}
	// The instance may not be ready to serve yet.
	if i.State != instancepb.Instance_READY {
		fmt.Fprintf(w, "instance state is not READY yet. Got state %v\n", i.State)
	}
	fmt.Fprintf(w, "Created instance [%s]\n", instanceID)
	return nil
}

Java

Para obtener información sobre cómo instalar y usar la biblioteca cliente de Spanner, consulta Bibliotecas cliente de Spanner.


import com.google.cloud.spanner.Spanner;
import com.google.cloud.spanner.SpannerOptions;
import com.google.cloud.spanner.admin.instance.v1.InstanceAdminClient;
import com.google.spanner.admin.instance.v1.CreateInstanceRequest;
import com.google.spanner.admin.instance.v1.Instance;
import com.google.spanner.admin.instance.v1.InstanceConfigName;
import com.google.spanner.admin.instance.v1.ProjectName;
import java.util.concurrent.ExecutionException;

class CreateInstanceExample {

  static void createInstance() {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "my-project";
    String instanceId = "my-instance";
    createInstance(projectId, instanceId);
  }

  static void createInstance(String projectId, String instanceId) {
    // Set Instance configuration.
    int nodeCount = 2;
    String displayName = "Descriptive name";

    // Create an Instance object that will be used to create the instance.
    Instance instance =
        Instance.newBuilder()
            .setDisplayName(displayName)
            .setNodeCount(nodeCount)
            .setConfig(
                InstanceConfigName.of(projectId, "regional-us-east4").toString())
            .build();

    try (Spanner spanner =
        SpannerOptions.newBuilder()
            .setProjectId(projectId)
            .build()
            .getService();
        InstanceAdminClient instanceAdminClient = spanner.createInstanceAdminClient()) {

      // Wait for the createInstance operation to finish.
      Instance createdInstance = instanceAdminClient.createInstanceAsync(
          CreateInstanceRequest.newBuilder()
              .setParent(ProjectName.of(projectId).toString())
              .setInstanceId(instanceId)
              .setInstance(instance)
              .build()).get();
      System.out.printf("Instance %s was successfully created%n", createdInstance.getName());
    } catch (ExecutionException e) {
      System.out.printf(
          "Error: Creating instance %s failed with error message %s%n",
          instance.getName(), e.getMessage());
    } catch (InterruptedException e) {
      System.out.println("Error: Waiting for createInstance operation to finish was interrupted");
    }
  }
}

Node.js

Para obtener información sobre cómo instalar y usar la biblioteca cliente de Spanner, consulta Bibliotecas cliente de Spanner.


// Imports the Google Cloud client library
const {Spanner} = require('@google-cloud/spanner');

// Creates a client
const spanner = new Spanner({
  projectId: projectId,
});

const instanceAdminClient = await spanner.getInstanceAdminClient();
/**
 * TODO(developer): Uncomment the following lines before running the sample.
 **/
// const projectId = 'my-project-id';
// const instanceId = 'my-instance';

// Creates a new instance
try {
  console.log(
    `Creating instance ${instanceAdminClient.instancePath(
      projectId,
      instanceId
    )}.`
  );
  const [operation] = await instanceAdminClient.createInstance({
    instanceId: instanceId,
    parent: instanceAdminClient.projectPath(projectId),
    instance: {
      config: instanceAdminClient.instanceConfigPath(
        projectId,
        'regional-us-central1'
      ),
      nodeCount: 1,
      displayName: 'Display name for the instance.',
      labels: {
        cloud_spanner_samples: 'true',
        created: Math.round(Date.now() / 1000).toString(), // current time
      },
    },
  });

  console.log(`Waiting for operation on ${instanceId} to complete...`);
  await operation.promise();

  console.log(`Created instance ${instanceId}.`);
} catch (err) {
  console.error('ERROR:', err);
}

PHP

Para obtener información sobre cómo instalar y usar la biblioteca cliente de Spanner, consulta Bibliotecas cliente de Spanner.

use Google\Cloud\Spanner\Admin\Instance\V1\Client\InstanceAdminClient;
use Google\Cloud\Spanner\Admin\Instance\V1\CreateInstanceRequest;
use Google\Cloud\Spanner\Admin\Instance\V1\Instance;

/**
 * Creates an instance.
 * Example:
 * ```
 * create_instance($projectId, $instanceId);
 * ```
 *
 * @param string $projectId  The Spanner project ID.
 * @param string $instanceId The Spanner instance ID.
 */
function create_instance(string $projectId, string $instanceId): void
{
    $instanceAdminClient = new InstanceAdminClient();
    $parent = InstanceAdminClient::projectName($projectId);
    $instanceName = InstanceAdminClient::instanceName($projectId, $instanceId);
    $configName = $instanceAdminClient->instanceConfigName($projectId, 'regional-us-central1');
    $instance = (new Instance())
        ->setName($instanceName)
        ->setConfig($configName)
        ->setDisplayName('dispName')
        ->setNodeCount(1);

    $operation = $instanceAdminClient->createInstance(
        (new CreateInstanceRequest())
        ->setParent($parent)
        ->setInstanceId($instanceId)
        ->setInstance($instance)
    );

    print('Waiting for operation to complete...' . PHP_EOL);
    $operation->pollUntilComplete();

    printf('Created instance %s' . PHP_EOL, $instanceId);
}

Python

Para obtener información sobre cómo instalar y usar la biblioteca cliente de Spanner, consulta Bibliotecas cliente de Spanner.

def create_instance(instance_id):
    """Creates an instance."""
    from google.cloud.spanner_admin_instance_v1.types import \
        spanner_instance_admin

    spanner_client = spanner.Client()

    config_name = "{}/instanceConfigs/regional-us-central1".format(
        spanner_client.project_name
    )

    operation = spanner_client.instance_admin_api.create_instance(
        parent=spanner_client.project_name,
        instance_id=instance_id,
        instance=spanner_instance_admin.Instance(
            config=config_name,
            display_name="This is a display name.",
            node_count=1,
            labels={
                "cloud_spanner_samples": "true",
                "sample_name": "snippets-create_instance-explicit",
                "created": str(int(time.time())),
            },
        ),
    )

    print("Waiting for operation to complete...")
    operation.result(OPERATION_TIMEOUT_SECONDS)

    print("Created instance {}".format(instance_id))

Ruby

Para obtener información sobre cómo instalar y usar la biblioteca cliente de Spanner, consulta Bibliotecas cliente de Spanner.

# project_id  = "Your Google Cloud project ID"
# instance_id = "Your Spanner instance ID"

require "google/cloud/spanner"
require "google/cloud/spanner/admin/instance"

instance_admin_client = Google::Cloud::Spanner::Admin::Instance.instance_admin

project_path = instance_admin_client.project_path project: project_id
instance_path = instance_admin_client.instance_path project: project_id, instance: instance_id
instance_config_path = instance_admin_client.instance_config_path project: project_id, instance_config: "regional-us-central1"

job = instance_admin_client.create_instance parent: project_path,
                                            instance_id: instance_id,
                                            instance: { name: instance_path,
                                                        config: instance_config_path,
                                                        display_name: instance_id,
                                                        node_count: 2,
                                                        labels: { cloud_spanner_samples: "true" } }

puts "Waiting for create instance operation to complete"

job.wait_until_done!

if job.error?
  puts job.error
else
  puts "Created instance #{instance_id}"
end

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