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创建和管理实例配置

本页介绍了如何列出、创建、更新、删除和显示 Spanner 实例配置。部分自定义实例配置功能在 Google Cloud 控制台界面。在这些情况下，请使用 Google Cloud CLI (gcloud) 命令。

列出实例配置

您可以列出所有可用的 Spanner 实例配置使用 Google Cloud CLI 和客户端库。如需查找所有 Spanner 实例配置的列表，请参阅单区域和多区域配置。

gcloud

运行 gcloud spanner instance-configs list 命令：

gcloud spanner instance-configs list

C++

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

void ListInstanceConfigs(
    google::cloud::spanner_admin::InstanceAdminClient client,
    std::string const& project_id) {
  int count = 0;
  auto project = google::cloud::Project(project_id);
  for (auto& config : client.ListInstanceConfigs(project.FullName())) {
    if (!config) throw std::move(config).status();
    ++count;
    std::cout << "Instance config [" << count << "]:\n"
              << config->DebugString();
  }
  if (count == 0) {
    std::cout << "No instance configs found in project " << project_id << "\n";
  }
}

C#

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


using Google.Api.Gax.ResourceNames;
using Google.Cloud.Spanner.Admin.Instance.V1;
using System;
using System.Collections.Generic;
using System.Linq;

public class ListInstanceConfigsSample
{
    public IEnumerable<InstanceConfig> ListInstanceConfigs(string projectId)
    {
        var instanceAdminClient = InstanceAdminClient.Create();
        var projectName = ProjectName.FromProject(projectId);
        var instanceConfigs = instanceAdminClient.ListInstanceConfigs(projectName);

        // We print the first 5 elements for demonstration purposes.
        // You can print all configs in the sequence by removing the call to Take(5).
        // The sequence will lazily fetch elements in pages as needed.
        foreach (var instanceConfig in instanceConfigs.Take(5))
        {
            Console.WriteLine($"Available leader options for instance config {instanceConfig.InstanceConfigName.InstanceConfigId}:");
            foreach (var leader in instanceConfig.LeaderOptions)
            {
                Console.WriteLine(leader);
            }

            Console.WriteLine($"Available optional replica for instance config {instanceConfig.InstanceConfigName.InstanceConfigId}:");
            foreach (var optionalReplica in instanceConfig.OptionalReplicas)
            {
                Console.WriteLine($"Replica type - {optionalReplica.Type}, default leader location - {optionalReplica.DefaultLeaderLocation}, location - {optionalReplica.Location}");
            }
        }
        return instanceConfigs;
    }
}

Go

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

import (
	"context"
	"fmt"
	"io"

	instance "cloud.google.com/go/spanner/admin/instance/apiv1"
	"google.golang.org/api/iterator"
	instancepb "google.golang.org/genproto/googleapis/spanner/admin/instance/v1"
)

// istInstanceConfigs gets available leader options for all instances
func listInstanceConfigs(w io.Writer, projectName string) error {
	// projectName = `projects/<project>
	ctx := context.Background()
	instanceAdmin, err := instance.NewInstanceAdminClient(ctx)
	if err != nil {
		return err
	}
	defer instanceAdmin.Close()

	request := &instancepb.ListInstanceConfigsRequest{
		Parent: projectName,
	}
	for {
		iter := instanceAdmin.ListInstanceConfigs(ctx, request)
		for {
			ic, err := iter.Next()
			if err == iterator.Done {
				break
			}
			if err != nil {
				return err
			}
			fmt.Fprintf(w, "Available leader options for instance config %s: %v\n", ic.Name, ic.LeaderOptions)
		}
		pageToken := iter.PageInfo().Token
		if pageToken == "" {
			break
		} else {
			request.PageToken = pageToken
		}
	}

	return nil
}

Java

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


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.InstanceConfig;
import com.google.spanner.admin.instance.v1.ProjectName;

public class ListInstanceConfigsSample {

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

  static void listInstanceConfigs(String projectId) {
    try (Spanner spanner =
        SpannerOptions.newBuilder()
            .setProjectId(projectId)
            .build()
            .getService();
        InstanceAdminClient instanceAdminClient = spanner.createInstanceAdminClient()) {
      final ProjectName projectName = ProjectName.of(projectId);
      for (InstanceConfig instanceConfig :
          instanceAdminClient.listInstanceConfigs(projectName).iterateAll()) {
        System.out.printf(
            "Available leader options for instance config %s: %s%n",
            instanceConfig.getName(),
            instanceConfig.getLeaderOptionsList()
        );
      }
    }
  }
}

Node.js

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

/**
 * TODO(developer): Uncomment the following line before running the sample.
 */
// const projectId = 'my-project-id';

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

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

const instanceAdminClient = spanner.getInstanceAdminClient();

async function listInstanceConfigs() {
  // Lists all available instance configurations in the project.
  // See https://cloud.google.com/spanner/docs/instance-configurations#configuration for a list of all available
  // configurations.
  const [instanceConfigs] = await instanceAdminClient.listInstanceConfigs({
    parent: instanceAdminClient.projectPath(projectId),
  });
  console.log(`Available instance configs for project ${projectId}:`);
  instanceConfigs.forEach(instanceConfig => {
    console.log(
      `Available leader options for instance config ${
        instanceConfig.name
      } ('${instanceConfig.displayName}'): 
         ${instanceConfig.leaderOptions.join()}`
    );
  });
}
listInstanceConfigs();

PHP

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


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

/**
 * Lists the available instance configurations.
 * Example:
 * ```
 * list_instance_configs();
 * ```
 *
 * @param string $projectId The Google Cloud project ID.
 */
function list_instance_configs(string $projectId = null): void
{
    $instanceAdminClient = new InstanceAdminClient();
    $projectName = InstanceAdminClient::projectName($projectId);
    $request = new ListInstanceConfigsRequest();
    $request->setParent($projectName);
    $resp = $instanceAdminClient->listInstanceConfigs($request);
    foreach ($resp as $element) {
        printf(
            'Available leader options for instance config %s: %s' . PHP_EOL,
            $element->getDisplayName(),
            implode(',', iterator_to_array($element->getLeaderOptions()))
        );
    }
}

Python

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

def list_instance_config():
    """Lists the available instance configurations."""
    from google.cloud.spanner_admin_instance_v1.types import \
        spanner_instance_admin

    spanner_client = spanner.Client()

    request = spanner_instance_admin.ListInstanceConfigsRequest(
        parent=spanner_client.project_name
    )
    for config in spanner_client.instance_admin_api.list_instance_configs(
        request=request
    ):
        print(
            "Available leader options for instance config {}: {}".format(
                config.name, config.leader_options
            )
        )

Ruby

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

# project_id  = "Your Google Cloud project 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
configs = instance_admin_client.list_instance_configs parent: project_path

configs.each do |c|
  puts "Available leader options for instance config #{c.name} : #{c.leader_options}"
end

显示实例配置详情

您可以使用 Google Cloud CLI 和客户端库。当您创建新的自定义实例配置，您可以将 optionalReplicas 下列出的任何位置添加为可选副本。如果您没有看到所需的只读副本位置，则可以请求新的可选只读副本区域。

如需了解详情，请参阅创建自定义实例配置。

gcloud

运行 gcloud spanner instance-configs describe 命令：

gcloud spanner instance-configs describe INSTANCE-CONFIG

请提供以下值：

INSTANCE-CONFIG: 实例配置，用于定义并影响数据的复制方式。例如：eur6 或 us-central1。

如需显示 eur6 基本配置的详细信息，请运行以下命令：

gcloud spanner instance-configs describe eur6

以下是 eur6 基本配置的输出示例：

  configType: GOOGLE_MANAGED
  displayName: Europe (Netherlands, Frankfurt)
  freeInstanceAvailability: UNSUPPORTED
  leaderOptions:
  - europe-west3
  - europe-west4
  name: projects/cloud-spanner-demo/instanceConfigs/eur6
  optionalReplicas:
  - displayName: South Carolina
    labels:
      cloud.googleapis.com/country: US
      cloud.googleapis.com/location: us-east1
      cloud.googleapis.com/region: us-east1
    location: us-east1
    type: READ_ONLY
  - displayName: South Carolina
    labels:
      cloud.googleapis.com/country: US
      cloud.googleapis.com/location: us-east1
      cloud.googleapis.com/region: us-east1
    location: us-east1
    type: READ_ONLY
  replicas:
  - defaultLeaderLocation: true
    location: europe-west4
    type: READ_WRITE
  - location: europe-west4
    type: READ_WRITE
  - location: europe-west3
    type: READ_WRITE
  - location: europe-west3
    type: READ_WRITE
  - location: europe-west6
    type: WITNESS

其他使用说明：

baseConfig（仅适用于自定义配置）指向基本配置实例配置。参阅可用的区域配置和可用的多区域配置基本实例配置列表，可用于创建自定义实例配置。
configType 指示此实例配置是否为基本实例配置或自定义实例配置。
etag（仅适用于自定义配置）是一个采用 base64 编码的字符串配置的表示形式。它用于乐观并发控制。

C++

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

void GetInstanceConfig(google::cloud::spanner_admin::InstanceAdminClient client,
                       std::string const& project_id,
                       std::string const& config_id) {
  auto project = google::cloud::Project(project_id);
  auto config = client.GetInstanceConfig(project.FullName() +
                                         "/instanceConfigs/" + config_id);
  if (!config) throw std::move(config).status();
  std::cout << "The instanceConfig " << config->name()
            << " exists and its metadata is:\n"
            << config->DebugString();
}

C#

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


using Google.Cloud.Spanner.Admin.Instance.V1;
using System;
using System.Threading.Tasks;

public class GetInstanceConfigAsyncSample
{
    public async Task<InstanceConfig> GetInstanceConfigAsync(string projectId, string instanceConfigId)
    {
        var instanceAdminClient = await InstanceAdminClient.CreateAsync();
        var instanceConfigName = InstanceConfigName.FromProjectInstanceConfig(projectId, instanceConfigId);
        var instanceConfig = await instanceAdminClient.GetInstanceConfigAsync(instanceConfigName);

        Console.WriteLine($"Available leader options for instance config {instanceConfigName.InstanceConfigId}:");
        foreach (var leader in instanceConfig.LeaderOptions)
        {
            Console.WriteLine(leader);
        }
        return instanceConfig;
    }
}

Go

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

import (
	"context"
	"fmt"
	"io"

	instance "cloud.google.com/go/spanner/admin/instance/apiv1"
	instancepb "google.golang.org/genproto/googleapis/spanner/admin/instance/v1"
)

// getInstanceConfig gets available leader options
func getInstanceConfig(w io.Writer, instanceConfigName string) error {
	// defaultLeader = `nam3`
	ctx := context.Background()
	instanceAdmin, err := instance.NewInstanceAdminClient(ctx)
	if err != nil {
		return err
	}
	defer instanceAdmin.Close()

	ic, err := instanceAdmin.GetInstanceConfig(ctx, &instancepb.GetInstanceConfigRequest{
		Name: instanceConfigName,
	})

	if err != nil {
		return fmt.Errorf("could not get instance config %s: %w", instanceConfigName, err)
	}

	fmt.Fprintf(w, "Available leader options for instance config %s: %v", instanceConfigName, ic.LeaderOptions)

	return nil
}

Java

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


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.InstanceConfig;
import com.google.spanner.admin.instance.v1.InstanceConfigName;

public class GetInstanceConfigSample {

  static void getInstanceConfig() {
    // TODO(developer): Replace these variables before running the sample.
    final String projectId = "my-project";
    final String instanceConfigId = "nam6";
    getInstanceConfig(projectId, instanceConfigId);
  }

  static void getInstanceConfig(String projectId, String instanceConfigId) {
    try (Spanner spanner =
        SpannerOptions.newBuilder()
            .setProjectId(projectId)
            .build()
            .getService();
        InstanceAdminClient instanceAdminClient = spanner.createInstanceAdminClient()) {
      final InstanceConfigName instanceConfigName = InstanceConfigName.of(projectId,
          instanceConfigId);

      final InstanceConfig instanceConfig =
          instanceAdminClient.getInstanceConfig(instanceConfigName.toString());

      System.out.printf(
          "Available leader options for instance config %s: %s%n",
          instanceConfig.getName(),
          instanceConfig.getLeaderOptionsList()
      );
    }
  }
}

Node.js

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


/**
 * TODO(developer): Uncomment the following line before running the sample.
 */
// const projectId = 'my-project-id';

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

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

const instanceAdminClient = spanner.getInstanceAdminClient();

async function getInstanceConfig() {
  // Get the instance config for the multi-region North America 6 (NAM6).
  // See https://cloud.google.com/spanner/docs/instance-configurations#configuration for a list of all available
  // configurations.
  const [instanceConfig] = await instanceAdminClient.getInstanceConfig({
    name: instanceAdminClient.instanceConfigPath(projectId, 'nam6'),
  });
  console.log(
    `Available leader options for instance config ${instanceConfig.name} ('${
      instanceConfig.displayName
    }'): 
         ${instanceConfig.leaderOptions.join()}`
  );
}
getInstanceConfig();

PHP

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

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

/**
 * Gets the leader options for the instance configuration.
 *
 * @param string $projectId The Google Cloud Project ID.
 * @param string $instanceConfig The name of the instance configuration.
 */
function get_instance_config(string $projectId, string $instanceConfig): void
{
    $instanceAdminClient = new InstanceAdminClient();
    $instanceConfigName = InstanceAdminClient::instanceConfigName($projectId, $instanceConfig);

    $request = (new GetInstanceConfigRequest())
        ->setName($instanceConfigName);
    $configInfo = $instanceAdminClient->getInstanceConfig($request);

    printf('Available leader options for instance config %s: %s' . PHP_EOL,
        $instanceConfig,
        implode(',', array_keys(iterator_to_array($configInfo->getLeaderOptions())))
    );
}

Python

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

def get_instance_config(instance_config):
    """Gets the leader options for the instance configuration."""
    spanner_client = spanner.Client()
    config_name = "{}/instanceConfigs/{}".format(
        spanner_client.project_name, instance_config
    )
    config = spanner_client.instance_admin_api.get_instance_config(name=config_name)
    print(
        "Available leader options for instance config {}: {}".format(
            instance_config, config.leader_options
        )
    )

Ruby

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

# project_id  = "Your Google Cloud project ID"
# instance_config_id = "Spanner instance config ID"

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

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

instance_config_path = instance_admin_client.instance_config_path \
  project: project_id, instance_config: instance_config_id
config = instance_admin_client.get_instance_config name: instance_config_path

puts "Available leader options for instance config #{config.name} : #{config.leader_options}"

创建自定义实例配置

您可以创建自定义单区域或多区域实例配置，可扩缩的可选只读副本并支持低延迟过时读取。请参阅可用的区域配置和可用的多区域配置获取可用于创建自定义实例配置。您无法创建自定义双区域实例配置。详细了解 Spanner 请参阅复制。

要创建自定义实例配置，您必须拥有 spanner.instanceConfigs.create 权限。默认情况下，拥有 spanner.instances.create 权限还将具有 spanner.instanceConfigs.create 权限。

控制台

您无法使用 Google Cloud 控制台。如需创建具有只读副本的实例，请参阅说明使用自定义实例配置创建实例。

您可以使用 Google Cloud CLI 和客户端库来创建独立的自定义实例配置。

gcloud

使用 gcloud spanner instance-configs create 命令：

gcloud spanner instance-configs create CUSTOM-INSTANCE-CONFIG-ID  \
 --display-name=DISPLAY-NAME \
 --base-config=BASE-CONFIG \
 --labels=KEY=VALUE,[...] \
 --replicas=location=LOCATION, type=TYPE[:...]

您可以使用 --clone-config 标志来方便地克隆另一个同时还声明了位置和特定自定义副本的类型

  gcloud spanner instance-configs create CUSTOM-INSTANCE-CONFIG-ID  \
  --display-name=DISPLAY-NAME \
  --clone-config=INSTANCE-CONFIG \
  --labels=KEY=VALUE,[...] \
  --add-replicas=location=LOCATION, type=TYPE[:...] \
  --skip-replicas=location=LOCATION, type=TYPE[:...]

请提供以下值：

CUSTOM-INSTANCE-CONFIG-ID

安置永久标识符，该标识符在您的 Google Cloud 项目中具有唯一性。您无法更改实例配置 ID。custom- 必须提供前缀，以避免与基本实例发生名称冲突配置。

DISPLAY-NAME

为自定义实例配置显示的名称 Google Cloud 控制台。

BASE-CONFIG

您的实例所在的基础实例配置所在的区域名称自定义实例配置的基础。例如 eur6 或 regional-us-central1。

LOCATION

服务资源（副本）的区域名称，例如， us-east1.如需了解系统接受哪些地理位置名称，请运行以下命令： gcloud spanner instance-configs describe INSTANCE-CONFIG 并参阅 replicas和 optionalReplicas 列表。

TYPE

副本的类型。要找出相应营业地点副本类型被接受，请运行

gcloud spanner instance-configs
  describe INSTANCE-CONFIG

并引用 replicas 和 optionalReplicas 列表。类型可以是以下其中一项： <ph type="x-smartling-placeholder">

READ_ONLY
READ_WRITE
证券

列表中的项以“:”分隔。

除非使用 --[clone-config] 标志，否则所有副本 LOCATION 和 TYPE 必须在创建自定义实例配置时指定包括基本配置中预定义的查询有关请参阅 gcloud instance-configs describe help-text。

如果您选择使用 --clone-config 和 --add-replicas 标志（仅如果您希望跳过某些副本，请使用 --skip-replicas 克隆），请提供以下值：

--clone-config=INSTANCE-CONFIG

使用此标志可以方便地克隆另一个基础或自定义同时声明实例的位置和类型，特定自定义副本然后使用 --add-replicas=location=LOCATION,type=TYPE 指定要添加可选副本的位置。

例如，要创建一个包含两个部分的自定义实例配置 us-east1 中的只读副本，同时复制所有其他副本 eur6 基本实例配置中配置的位置，请运行以下命令：
```
gcloud spanner instance-configs create custom-eur6 --clone-config=eur6 \
--add-replicas=location=us-east1,type=READ_ONLY:location=us-east1,type=READ_ONLY
```
--skip-replicas=location=LOCATION,type=TYPE

使用此标志可以跳过克隆任何副本。

例如，创建一个自定义实例配置 us-east4 中的只读副本，同时复制所有其他副本 nam3 基本实例配置中除 us-central1 中的只读副本，请运行以下命令：
```
gcloud spanner instance-configs create custom-nam3 --clone-config=nam3 \
  --add-replicas=location=us-east4,type=READ_ONLY \
  --skip-replicas=location=us-central1,type=READ_ONLY
```

以下标志和值是可选的：

--labels=KEY=VALUE,[...]

KEY 和 VALUE：键值对添加到您的自定义实例配置中。

键必须以小写字符开头，并且只能包含连字符 (-)，下划线 (_)、小写字符和数字。值必须包含只能使用连字符 (-)、下划线 (_)、小写字符和数字。
--validate-only

在执行之前，使用此标记验证请求是否成功。

例如，使用 eur6 基准创建自定义实例配置配置，并在 us-east1 中额外添加一个只读副本，请运行以下命令：

gcloud spanner instance-configs create custom-eur6 \
  --display-name="Custom eur6" --clone-config=eur6 \
  --add-replicas=location=us-east1,type=READ_ONLY \

您也可以在不使用 --clone-config 标志：

gcloud spanner instance-configs create custom-eur6 \
  --display-name="Custom eur6" --base-config=eur6 \
  --replicas=location=europe-west4,type=READ_WRITE:location=europe-west3,type=READ_WRITE:location=europe-west4,type=READ_WRITE:location=europe-west3,type=READ_WRITE:location=europe-west6,type=WITNESS:location=us-east1,type=READ_ONLY

您应该会看到以下输出内容：

Creating instance-config...done.

C++

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

void CreateInstanceConfig(
    google::cloud::spanner_admin::InstanceAdminClient client,
    std::string const& project_id, std::string const& user_config_id,
    std::string const& base_config_id) {
  auto project = google::cloud::Project(project_id);
  auto base_config = client.GetInstanceConfig(
      project.FullName() + "/instanceConfigs/" + base_config_id);
  if (!base_config) throw std::move(base_config).status();
  if (base_config->optional_replicas().empty()) {
    throw std::runtime_error("No optional replicas in base config");
  }
  google::spanner::admin::instance::v1::CreateInstanceConfigRequest request;
  request.set_parent(project.FullName());
  request.set_instance_config_id(user_config_id);
  auto* request_config = request.mutable_instance_config();
  request_config->set_name(project.FullName() + "/instanceConfigs/" +
                           user_config_id);
  request_config->set_display_name("My instance config");
  // The user-managed instance config must contain all the replicas
  // of the base config plus at least one of the optional replicas.
  *request_config->mutable_replicas() = base_config->replicas();
  for (auto const& replica : base_config->optional_replicas()) {
    *request_config->add_replicas() = replica;
  }
  request_config->set_base_config(base_config->name());
  *request_config->mutable_leader_options() = base_config->leader_options();
  request.set_validate_only(false);
  auto user_config = client.CreateInstanceConfig(request).get();
  if (!user_config) throw std::move(user_config).status();
  std::cout << "Created instance config [" << user_config_id << "]:\n"
            << user_config->DebugString();
}

C#

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


using System;
using System.Threading.Tasks;
using Google.Api.Gax.ResourceNames;
using Google.Cloud.Spanner.Admin.Instance.V1;

public class CreateInstanceConfigAsyncSample
{
    public async Task<InstanceConfig> CreateInstanceConfigAsync(string projectId, string baseInstanceConfigId, string customInstanceConfigId)
    {
        InstanceAdminClient instanceAdminClient = await InstanceAdminClient.CreateAsync();
        var instanceConfigName = new InstanceConfigName(projectId, baseInstanceConfigId);
        var instanceConfig = await instanceAdminClient.GetInstanceConfigAsync(instanceConfigName);

        var customInstanceConfigName = new InstanceConfigName(projectId, customInstanceConfigId);

        //Create a custom config.
        InstanceConfig userInstanceConfig = new InstanceConfig
        {
            DisplayName = "C# test custom instance config",
            ConfigType = InstanceConfig.Types.Type.UserManaged,
            BaseConfigAsInstanceConfigName = instanceConfigName,
            InstanceConfigName = customInstanceConfigName,
            //The replicas for the custom instance configuration must include all the replicas of the base
            //configuration, in addition to at least one from the list of optional replicas of the base
            //configuration.
            Replicas = { instanceConfig.Replicas },
            OptionalReplicas =
            {
                new ReplicaInfo
                {
                    Type = ReplicaInfo.Types.ReplicaType.ReadOnly,
                    Location = "us-east1",
                    DefaultLeaderLocation = false
                },
                //The replicas for the custom instance configuration must include all the replicas of the base
                //configuration, in addition to at least one from the list of optional replicas of the base
                //configuration.
                instanceConfig.OptionalReplicas
            }
        };

        var operationResult = await instanceAdminClient.CreateInstanceConfigAsync(new CreateInstanceConfigRequest
        {
            ParentAsProjectName = ProjectName.FromProject(projectId),
            InstanceConfig = userInstanceConfig,
            InstanceConfigId = customInstanceConfigId
        });

        var pollResult = await operationResult.PollUntilCompletedAsync();

        if (pollResult.IsFaulted)
        {
            throw pollResult.Exception;
        }

        Console.WriteLine($"Instance config created successfully");
        Console.WriteLine($"Available custom replication options for instance config {pollResult.Result.Name}\r\n{pollResult.Result.OptionalReplicas}");

        return pollResult.Result;
    }
}

Go

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


import (
	"context"
	"fmt"
	"io"
	"time"

	instance "cloud.google.com/go/spanner/admin/instance/apiv1"
	instancepb "google.golang.org/genproto/googleapis/spanner/admin/instance/v1"
)

// createInstanceConfig creates a custom spanner instance config
func createInstanceConfig(w io.Writer, projectID, userConfigID, baseConfigID string) error {
	// projectID := "my-project-id"
	// userConfigID := "custom-config", custom config names must start with the prefix “custom-”.
	// baseConfigID := "my-base-config"

	// Add timeout to context.
	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Minute)
	defer cancel()

	adminClient, err := instance.NewInstanceAdminClient(ctx)
	if err != nil {
		return err
	}
	defer adminClient.Close()
	baseConfig, err := adminClient.GetInstanceConfig(ctx, &instancepb.GetInstanceConfigRequest{
		Name: fmt.Sprintf("projects/%s/instanceConfigs/%s", projectID, baseConfigID),
	})
	if err != nil {
		return fmt.Errorf("createInstanceConfig.GetInstanceConfig: %w", err)
	}
	if baseConfig.OptionalReplicas == nil || len(baseConfig.OptionalReplicas) == 0 {
		return fmt.Errorf("CreateInstanceConfig expects base config with at least from the list of optional replicas")
	}
	op, err := adminClient.CreateInstanceConfig(ctx, &instancepb.CreateInstanceConfigRequest{
		Parent: fmt.Sprintf("projects/%s", projectID),
		// Custom config names must start with the prefix “custom-”.
		InstanceConfigId: userConfigID,
		InstanceConfig: &instancepb.InstanceConfig{
			Name:        fmt.Sprintf("projects/%s/instanceConfigs/%s", projectID, userConfigID),
			DisplayName: "custom-golang-samples",
			ConfigType:  instancepb.InstanceConfig_USER_MANAGED,
			// The replicas for the custom instance configuration must include all the replicas of the base
			// configuration, in addition to at least one from the list of optional replicas of the base
			// configuration.
			Replicas:   append(baseConfig.Replicas, baseConfig.OptionalReplicas...),
			BaseConfig: baseConfig.Name,
			Labels:     map[string]string{"go_cloud_spanner_samples": "true"},
		},
	})
	if err != nil {
		return err
	}
	fmt.Fprintf(w, "Waiting for create operation on projects/%s/instanceConfigs/%s to complete...\n", projectID, userConfigID)
	// Wait for the instance configuration creation to finish.
	i, err := op.Wait(ctx)
	if err != nil {
		return fmt.Errorf("Waiting for instance config creation to finish failed: %w", err)
	}
	// The instance configuration may not be ready to serve yet.
	if i.State != instancepb.InstanceConfig_READY {
		fmt.Fprintf(w, "InstanceConfig state is not READY yet. Got state %v\n", i.State)
	}
	fmt.Fprintf(w, "Created instance configuration [%s]\n", userConfigID)
	return nil
}

Java

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


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.CreateInstanceConfigRequest;
import com.google.spanner.admin.instance.v1.InstanceConfig;
import com.google.spanner.admin.instance.v1.InstanceConfigName;
import com.google.spanner.admin.instance.v1.ProjectName;
import com.google.spanner.admin.instance.v1.ReplicaInfo;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.stream.Collectors;
import java.util.stream.Stream;

class CreateInstanceConfigSample {

  static void createInstanceConfig() {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "my-project";
    String baseInstanceConfigId = "nam11";
    String instanceConfigId = "custom-instance-config4";

    createInstanceConfig(projectId, baseInstanceConfigId, instanceConfigId);
  }

  static void createInstanceConfig(
      String projectId, String baseInstanceConfigId, String instanceConfigId) {
    try (Spanner spanner =
        SpannerOptions.newBuilder()
            .setProjectId(projectId)
            .build()
            .getService();
        InstanceAdminClient instanceAdminClient = spanner.createInstanceAdminClient()) {
      final InstanceConfigName baseInstanceConfigName = InstanceConfigName.of(projectId,
          baseInstanceConfigId);
      final InstanceConfig baseConfig =
          instanceAdminClient.getInstanceConfig(baseInstanceConfigName.toString());
      final InstanceConfigName instanceConfigName = InstanceConfigName.of(projectId,
          instanceConfigId);
      /**
       * The replicas for the custom instance configuration must include all the replicas of the
       * base configuration, in addition to at least one from the list of optional replicas of the
       * base configuration.
       */
      final List<ReplicaInfo> replicas =
          Stream.concat(baseConfig.getReplicasList().stream(),
              baseConfig.getOptionalReplicasList().stream().limit(1)).collect(Collectors.toList());
      final InstanceConfig instanceConfig =
          InstanceConfig.newBuilder().setName(instanceConfigName.toString())
              .setBaseConfig(baseInstanceConfigName.toString())
              .setDisplayName("Instance Configuration").addAllReplicas(replicas).build();
      final CreateInstanceConfigRequest createInstanceConfigRequest =
          CreateInstanceConfigRequest.newBuilder().setParent(ProjectName.of(projectId).toString())
              .setInstanceConfigId(instanceConfigId).setInstanceConfig(instanceConfig).build();
      try {
        System.out.printf("Waiting for create operation for %s to complete...\n",
            instanceConfigName);
        InstanceConfig instanceConfigResult =
            instanceAdminClient.createInstanceConfigAsync(
                createInstanceConfigRequest).get(5, TimeUnit.MINUTES);
        System.out.printf("Created instance configuration %s\n", instanceConfigResult.getName());
      } catch (ExecutionException | TimeoutException e) {
        System.out.printf(
            "Error: Creating instance configuration %s failed with error message %s\n",
            instanceConfig.getName(), e.getMessage());
      } catch (InterruptedException e) {
        System.out.println(
            "Error: Waiting for createInstanceConfig operation to finish was interrupted");
      }
    }
  }
}

Node.js

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// const instanceConfigId = 'custom-my-instance-config-id'
// const baseInstanceConfigId = 'my-base-instance-config-id';
// const projectId = 'my-project-id';

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

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

const instanceAdminClient = spanner.getInstanceAdminClient();

// Creates a new instance config
async function createInstanceConfig() {
  const [baseInstanceConfig] = await instanceAdminClient.getInstanceConfig({
    name: instanceAdminClient.instanceConfigPath(
      projectId,
      baseInstanceConfigId
    ),
  });
  try {
    console.log(
      `Creating instance config ${instanceAdminClient.instanceConfigPath(
        projectId,
        instanceConfigId
      )}.`
    );
    const [operation] = await instanceAdminClient.createInstanceConfig({
      instanceConfigId: instanceConfigId,
      parent: instanceAdminClient.projectPath(projectId),
      instanceConfig: {
        name: instanceAdminClient.instanceConfigPath(
          projectId,
          instanceConfigId
        ),
        baseConfig: instanceAdminClient.instanceConfigPath(
          projectId,
          baseInstanceConfigId
        ),
        displayName: instanceConfigId,
        replicas: baseInstanceConfig.replicas.concat(
          baseInstanceConfig.optionalReplicas[0]
        ),
      },
    });
    console.log(
      `Waiting for create operation for ${instanceConfigId} to complete...`
    );
    await operation.promise();
    console.log(`Created instance config ${instanceConfigId}.`);
  } catch (err) {
    console.error(
      'ERROR: Creating instance config ',
      instanceConfigId,
      ' failed with error message ',
      err
    );
  }
}
createInstanceConfig();

PHP

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

use Google\Cloud\Spanner\Admin\Instance\V1\CreateInstanceConfigRequest;
use Google\Cloud\Spanner\Admin\Instance\V1\GetInstanceConfigRequest;
use Google\Cloud\Spanner\Admin\Instance\V1\InstanceConfig;
use Google\Cloud\Spanner\Admin\Instance\V1\Client\InstanceAdminClient;
use Google\Cloud\Spanner\Admin\Instance\V1\ReplicaInfo;

/**
 * Creates a customer managed instance configuration.
 * Example:
 * ```
 * create_instance_config($instanceConfigId);
 * ```
 *
 * @param string $projectId The Google Cloud Project ID.
 * @param string $instanceConfigId The customer managed instance configuration id. The id must start with 'custom-'.
 * @param string $baseConfigId Base configuration ID to be used for creation, e.g. nam11.
 */
function create_instance_config(string $projectId, string $instanceConfigId, string $baseConfigId): void
{
    $instanceAdminClient = new InstanceAdminClient();
    $projectName = InstanceAdminClient::projectName($projectId);
    $instanceConfigName = $instanceAdminClient->instanceConfigName(
        $projectId,
        $instanceConfigId
    );

    // Get a Google Managed instance configuration to use as the base for our custom instance configuration.
    $baseInstanceConfig = $instanceAdminClient->instanceConfigName(
        $projectId,
        $baseConfigId
    );

    $request = new GetInstanceConfigRequest(['name' => $baseInstanceConfig]);
    $baseInstanceConfigInfo = $instanceAdminClient->getInstanceConfig($request);

    $instanceConfig = (new InstanceConfig())
        ->setBaseConfig($baseInstanceConfig)
        ->setName($instanceConfigName)
        ->setDisplayName('My custom instance configuration')
        ->setLabels(['php-cloud-spanner-samples' => true])
        ->setReplicas(array_merge(
            iterator_to_array($baseInstanceConfigInfo->getReplicas()),
            [new ReplicaInfo([
            'location' => 'us-east1',
            'type' => ReplicaInfo\ReplicaType::READ_ONLY,
            'default_leader_location' => false
            ])]
        ));

    $request = new CreateInstanceConfigRequest([
        'parent' => $projectName,
        'instance_config' => $instanceConfig,
        'instance_config_id' => $instanceConfigId
    ]);
    $operation = $instanceAdminClient->createInstanceConfig($request);

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

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

Python

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

def create_instance_config(user_config_name, base_config_id):
    """Creates the new user-managed instance configuration using base instance config."""

    # user_config_name = `custom-nam11`
    # base_config_id = `projects/<project>/instanceConfigs/nam11`
    spanner_client = spanner.Client()
    base_config = spanner_client.instance_admin_api.get_instance_config(
        name=base_config_id
    )

    # The replicas for the custom instance configuration must include all the replicas of the base
    # configuration, in addition to at least one from the list of optional replicas of the base
    # configuration.
    replicas = []
    for replica in base_config.replicas:
        replicas.append(replica)
    replicas.append(base_config.optional_replicas[0])
    operation = spanner_client.instance_admin_api.create_instance_config(
        parent=spanner_client.project_name,
        instance_config_id=user_config_name,
        instance_config=spanner_instance_admin.InstanceConfig(
            name="{}/instanceConfigs/{}".format(
                spanner_client.project_name, user_config_name
            ),
            display_name="custom-python-samples",
            config_type=spanner_instance_admin.InstanceConfig.Type.USER_MANAGED,
            replicas=replicas,
            base_config=base_config.name,
            labels={"python_cloud_spanner_samples": "true"},
        ),
    )
    print("Waiting for operation to complete...")
    operation.result(OPERATION_TIMEOUT_SECONDS)

    print("Created instance configuration {}".format(user_config_name))

Ruby

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

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

def spanner_create_instance_config project_id:, user_config_name:, base_config_id:
  # project_id  = "Your Google Cloud project ID"
  # user_config_name = "Your custom instance configuration name, The name must start with 'custom-'"
  # base_config_id = "Base configuration ID to be used for creation, e.g projects/<project>/instanceConfigs/nam11"

  instance_admin_client = Google::Cloud::Spanner::Admin::Instance.instance_admin
  project_path = instance_admin_client.project_path project: project_id
  base_instance_config = instance_admin_client.get_instance_config name: base_config_id
  # The replicas for the custom instance configuration must include all the replicas of the base
  # configuration, in addition to at least one from the list of optional replicas of the base
  # configuration.
  custom_replicas = []
  base_instance_config.replicas.each do |replica|
    custom_replicas << replica
  end
  custom_replicas << base_instance_config.optional_replicas[0]
  custom_instance_config_id = instance_admin_client.instance_config_path \
    project: project_id, instance_config: user_config_name
  custom_instance_config = {
    name: custom_instance_config_id,
    display_name: "custom-ruby-samples",
    config_type: :USER_MANAGED,
    replicas: custom_replicas,
    base_config: base_config_id,
    labels: { ruby_cloud_spanner_samples: "true" }
  }
  request = {
    parent: project_path,
    # Custom config names must start with the prefix “custom-”.
    instance_config_id: user_config_name,
    instance_config: custom_instance_config
  }
  job = instance_admin_client.create_instance_config request

  puts "Waiting for create instance config operation to complete"

  job.wait_until_done!

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

在自定义实例配置中创建实例

您可以在自定义实例配置中创建实例。

控制台

要在自定义实例配置中创建实例，请按照创建实例中提供的说明。

请注意，您无需创建独立的自定义实例 Google Cloud 控制台中的配置。实例配置系统会在您创建实例时自动创建此实例。

更新自定义实例配置

您可以更改自定义实例配置的显示名称和标签。

您无法更改或更新自定义实例配置的副本。不过，您可以创建新的自定义实例配置然后将实例迁移到新的自定义实例配置。例如：如果您的实例位于 us-central1 中，并且您希望添加只读副本 us-west1，则需要使用 us-central1 作为基本配置，并添加 us-west1 作为只读配置副本。然后将您的实例迁移到此新的自定义实例配置。

gcloud

使用 gcloud spanner instance-configs update 命令：

gcloud spanner instance-configs update CUSTOM-INSTANCE-CONFIG-ID \
  --display-name=NEW-DISPLAY-NAME \
  --update-labels=KEY=VALUE,[...], \
  --etag=ETAG

请提供以下值：

CUSTOM-INSTANCE-CONFIG-ID: 自定义实例配置的永久标识符。它将以 custom- 开头。
NEW-DISPLAY-NAME: 要在 Google Cloud 控制台。
KEY 和 VALUE: 要更新的键值对列表。; 键必须以小写字符开头，并且只能包含连字符 (-)、下划线 (_)、小写字符和数字。值必须只能包含连字符 (-)、下划线 (_)、小写字符和数字。

以下标志和值是可选的：

--etag=ETAG：ETAG 参数可用于选择和跳过读取-修改-写入场景
--validate-only：使用此标记验证请求是否成功然后再执行代码

例如：

gcloud spanner instance-configs update custom-eur6 \
  --display-name="Customer managed europe replicas"

C++

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

void UpdateInstanceConfig(
    google::cloud::spanner_admin::InstanceAdminClient client,
    std::string const& project_id, std::string const& config_id) {
  auto project = google::cloud::Project(project_id);
  auto config = client.GetInstanceConfig(project.FullName() +
                                         "/instanceConfigs/" + config_id);
  if (!config) throw std::move(config).status();
  google::spanner::admin::instance::v1::UpdateInstanceConfigRequest request;
  auto* request_config = request.mutable_instance_config();
  request_config->set_name(config->name());
  request_config->mutable_labels()->insert({"key", "value"});
  request.mutable_update_mask()->add_paths("labels");
  request_config->set_etag(config->etag());
  request.set_validate_only(false);
  auto updated_config = client.UpdateInstanceConfig(request).get();
  if (!updated_config) throw std::move(updated_config).status();
  std::cout << "Updated instance config [" << config_id << "]:\n"
            << updated_config->DebugString();
}

C#

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Google.Cloud.Spanner.Admin.Instance.V1;
using Google.LongRunning;
using Google.Protobuf.WellKnownTypes;

public class UpdateInstanceConfigAsyncSample
{
    public async Task<Operation<InstanceConfig, UpdateInstanceConfigMetadata>> UpdateInstanceConfigAsync(string projectId, string instanceConfigId)
    {
        InstanceAdminClient instanceAdminClient = await InstanceAdminClient.CreateAsync();
        var instanceConfigName = new InstanceConfigName(projectId, instanceConfigId);

        var instanceConfig = new InstanceConfig();
        instanceConfig.InstanceConfigName  = instanceConfigName;

        instanceConfig.DisplayName = "New display name";
        instanceConfig.Labels.Add(new Dictionary<string, string>
        {
            {"cloud_spanner_samples","true"},
            {"updated","true"},
        });

        var updateInstanceConfigOperation = await instanceAdminClient.UpdateInstanceConfigAsync(new UpdateInstanceConfigRequest
        {
            InstanceConfig = instanceConfig,
            UpdateMask = new FieldMask
            {
                Paths = { "display_name", "labels" }
            }
        });

        updateInstanceConfigOperation = await updateInstanceConfigOperation.PollUntilCompletedAsync(); 

        if (updateInstanceConfigOperation.IsFaulted)
        {
            throw updateInstanceConfigOperation.Exception;
        }

        Console.WriteLine("Update Instance Config operation completed successfully.");
        return updateInstanceConfigOperation;
    }
}

Go

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


import (
	"context"
	"fmt"
	"io"
	"time"

	instance "cloud.google.com/go/spanner/admin/instance/apiv1"
	instancepb "google.golang.org/genproto/googleapis/spanner/admin/instance/v1"
	"google.golang.org/genproto/protobuf/field_mask"
)

// updateInstanceConfig updates the custom spanner instance config
func updateInstanceConfig(w io.Writer, projectID, userConfigID string) error {
	// projectID := "my-project-id"
	// userConfigID := "custom-config", custom config names must start with the prefix “custom-”.

	// Add timeout to context.
	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Minute)
	defer cancel()

	adminClient, err := instance.NewInstanceAdminClient(ctx)
	if err != nil {
		return err
	}
	defer adminClient.Close()
	config, err := adminClient.GetInstanceConfig(ctx, &instancepb.GetInstanceConfigRequest{
		Name: fmt.Sprintf("projects/%s/instanceConfigs/%s", projectID, userConfigID),
	})
	if err != nil {
		return fmt.Errorf("updateInstanceConfig.GetInstanceConfig: %w", err)
	}
	config.DisplayName = "updated custom instance config"
	config.Labels["updated"] = "true"
	op, err := adminClient.UpdateInstanceConfig(ctx, &instancepb.UpdateInstanceConfigRequest{
		InstanceConfig: config,
		UpdateMask: &field_mask.FieldMask{
			Paths: []string{"display_name", "labels"},
		},
		ValidateOnly: false,
	})
	if err != nil {
		return err
	}
	fmt.Fprintf(w, "Waiting for update operation on %s to complete...\n", userConfigID)
	// Wait for the instance configuration creation to finish.
	i, err := op.Wait(ctx)
	if err != nil {
		return fmt.Errorf("Waiting for instance config creation to finish failed: %w", err)
	}
	// The instance configuration may not be ready to serve yet.
	if i.State != instancepb.InstanceConfig_READY {
		fmt.Fprintf(w, "InstanceConfig state is not READY yet. Got state %v\n", i.State)
	}
	fmt.Fprintf(w, "Updated instance configuration [%s]\n", config.Name)
	return nil
}

Java

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


import com.google.cloud.spanner.Spanner;
import com.google.cloud.spanner.SpannerOptions;
import com.google.cloud.spanner.admin.instance.v1.InstanceAdminClient;
import com.google.common.collect.ImmutableList;
import com.google.protobuf.FieldMask;
import com.google.spanner.admin.instance.v1.InstanceConfig;
import com.google.spanner.admin.instance.v1.InstanceConfigName;
import com.google.spanner.admin.instance.v1.UpdateInstanceConfigRequest;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

class UpdateInstanceConfigSample {

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

  static void updateInstanceConfig(String projectId, String instanceConfigId) {
    try (Spanner spanner =
        SpannerOptions.newBuilder()
            .setProjectId(projectId)
            .build()
            .getService();
        InstanceAdminClient instanceAdminClient = spanner.createInstanceAdminClient()) {
      final InstanceConfigName instanceConfigName =
          InstanceConfigName.of(projectId, instanceConfigId);
      final InstanceConfig instanceConfig =
          InstanceConfig.newBuilder()
              .setName(instanceConfigName.toString())
              .setDisplayName("updated custom instance config")
              .putLabels("updated", "true").build();
      /**
       * The field mask must always be specified; this prevents any future
       * fields in [InstanceConfig][google.spanner.admin.instance.v1.InstanceConfig]
       * from being erased accidentally by clients that do not know about them.
       */
      final UpdateInstanceConfigRequest updateInstanceConfigRequest =
          UpdateInstanceConfigRequest.newBuilder()
              .setInstanceConfig(instanceConfig)
              .setUpdateMask(
                  FieldMask.newBuilder().addAllPaths(ImmutableList.of("display_name", "labels"))
                      .build()).build();
      try {
        System.out.printf("Waiting for update operation on %s to complete...\n",
            instanceConfigName);
        InstanceConfig instanceConfigResult =
            instanceAdminClient.updateInstanceConfigAsync(
                updateInstanceConfigRequest).get(5, TimeUnit.MINUTES);
        System.out.printf(
            "Updated instance configuration %s with new display name %s\n",
            instanceConfigResult.getName(), instanceConfig.getDisplayName());
      } catch (ExecutionException | TimeoutException e) {
        System.out.printf(
            "Error: Updating instance config %s failed with error message %s\n",
            instanceConfig.getName(), e.getMessage());
        e.printStackTrace();
      } catch (InterruptedException e) {
        System.out.println(
            "Error: Waiting for updateInstanceConfig operation to finish was interrupted");
      }
    }
  }
}

Node.js

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// const instanceConfigId = 'custom-my-instance-config-id';
// const projectId = 'my-project-id';

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

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

const instanceAdminClient = spanner.getInstanceAdminClient();

async function updateInstanceConfig() {
  // Updates an instance config
  try {
    console.log(
      `Updating instance config ${instanceAdminClient.instanceConfigPath(
        projectId,
        instanceConfigId
      )}.`
    );
    const [operation] = await instanceAdminClient.updateInstanceConfig({
      instanceConfig: {
        name: instanceAdminClient.instanceConfigPath(
          projectId,
          instanceConfigId
        ),
        displayName: 'updated custom instance config',
        labels: {
          updated: 'true',
          created: Math.round(Date.now() / 1000).toString(), // current time
        },
      },
      // Field mask specifying fields that should get updated in InstanceConfig
      // Only display_name and labels can be updated
      updateMask: (protos.google.protobuf.FieldMask = {
        paths: ['display_name', 'labels'],
      }),
    });
    console.log(
      `Waiting for update operation for ${instanceConfigId} to complete...`
    );
    await operation.promise();
    console.log(`Updated instance config ${instanceConfigId}.`);
  } catch (err) {
    console.error(
      'ERROR: Updating instance config ',
      instanceConfigId,
      ' failed with error message ',
      err
    );
  }
}
updateInstanceConfig();

PHP

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

use Google\Cloud\Spanner\Admin\Instance\V1\Client\InstanceAdminClient;
use Google\Cloud\Spanner\Admin\Instance\V1\InstanceConfig;
use Google\Cloud\Spanner\Admin\Instance\V1\UpdateInstanceConfigRequest;
use Google\Protobuf\FieldMask;

/**
 * Updates a customer managed instance configuration.
 * Example:
 * ```
 * update_instance_config($instanceConfigId);
 * ```
 *
 * @param string $projectId The Google Cloud project ID.
 * @param string $instanceConfigId The customer managed instance configuration id. The id must start with 'custom-'.
 */
function update_instance_config(string $projectId, string $instanceConfigId): void
{
    $instanceAdminClient = new InstanceAdminClient();

    $instanceConfigPath = $instanceAdminClient->instanceConfigName($projectId, $instanceConfigId);
    $displayName = 'New display name';

    $instanceConfig = new InstanceConfig();
    $instanceConfig->setName($instanceConfigPath);
    $instanceConfig->setDisplayName($displayName);
    $instanceConfig->setLabels(['cloud_spanner_samples' => true, 'updated' => true]);

    $fieldMask = new FieldMask();
    $fieldMask->setPaths(['display_name', 'labels']);

    $updateInstanceConfigRequest = (new UpdateInstanceConfigRequest())
        ->setInstanceConfig($instanceConfig)
        ->setUpdateMask($fieldMask);

    $operation = $instanceAdminClient->updateInstanceConfig($updateInstanceConfigRequest);

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

    printf('Updated instance configuration %s' . PHP_EOL, $instanceConfigId);
}

Python

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

def update_instance_config(user_config_name):
    """Updates the user-managed instance configuration."""

    # user_config_name = `custom-nam11`
    spanner_client = spanner.Client()
    config = spanner_client.instance_admin_api.get_instance_config(
        name="{}/instanceConfigs/{}".format(
            spanner_client.project_name, user_config_name
        )
    )
    config.display_name = "updated custom instance config"
    config.labels["updated"] = "true"
    operation = spanner_client.instance_admin_api.update_instance_config(
        instance_config=config,
        update_mask=field_mask_pb2.FieldMask(paths=["display_name", "labels"]),
    )
    print("Waiting for operation to complete...")
    operation.result(OPERATION_TIMEOUT_SECONDS)
    print("Updated instance configuration {}".format(user_config_name))

Ruby

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

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

def spanner_update_instance_config user_config_id:
  # user_config_id = "The customer managed instance configuration ID, e.g projects/<project>/instanceConfigs/custom-nam11"

  instance_admin_client = Google::Cloud::Spanner::Admin::Instance.instance_admin
  config = instance_admin_client.get_instance_config name: user_config_id
  config.display_name = "updated custom instance config"
  config.labels["updated"] = "true"
  request = {
    instance_config: config,
    update_mask: { paths: ["display_name", "labels"] },
    validate_only: false
  }
  job = instance_admin_client.update_instance_config request

  puts "Waiting for update instance config operation to complete"

  job.wait_until_done!

  if job.error?
    puts job.error
  else
    puts "Updated instance configuration #{config.name}"
  end
end

删除自定义实例配置

要删除自定义实例配置，请先删除实例配置。

gcloud

使用 gcloud spanner instance-configs delete 命令，将将 CUSTOM-INSTANCE-CONFIG-ID 替换为自定义实例配置 ID：

gcloud spanner instance-configs delete CUSTOM-INSTANCE-CONFIG-ID

C++

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

void DeleteInstanceConfig(
    google::cloud::spanner_admin::InstanceAdminClient client,
    std::string const& project_id, std::string const& config_id) {
  auto project = google::cloud::Project(project_id);
  auto config_name = project.FullName() + "/instanceConfigs/" + config_id;
  auto status = client.DeleteInstanceConfig(config_name);
  if (!status.ok()) throw std::move(status);
  std::cout << "Instance config " << config_name << " successfully deleted\n";
}

C#

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


using System;
using System.Threading.Tasks;
using Google.Cloud.Spanner.Admin.Instance.V1;
using Grpc.Core;

public class DeleteInstanceConfigAsyncSample
{

    public async Task DeleteInstanceConfigAsync(string projectId, string instanceConfigId)
    {
        InstanceAdminClient instanceAdminClient = await InstanceAdminClient.CreateAsync();
        var instanceConfigName = new InstanceConfigName(projectId, instanceConfigId);

        try
        {
            await instanceAdminClient.DeleteInstanceConfigAsync(new DeleteInstanceConfigRequest
            {
                InstanceConfigName = instanceConfigName
            });
        }
        catch (RpcException ex) when (ex.Status.StatusCode == StatusCode.NotFound)
        {
            Console.WriteLine("The specified instance config does not exist. It cannot be deleted.");
            return;
        }

        Console.WriteLine("Delete Instance Config operation is completed");
    }
}

Go

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


import (
	"context"
	"fmt"
	"io"

	instance "cloud.google.com/go/spanner/admin/instance/apiv1"
	instancepb "google.golang.org/genproto/googleapis/spanner/admin/instance/v1"
)

// deleteInstanceConfig deletes the custom spanner instance config
func deleteInstanceConfig(w io.Writer, projectID, userConfigID string) error {
	// projectID := "my-project-id"
	// userConfigID := "custom-config", custom config names must start with the prefix “custom-”.

	ctx := context.Background()
	adminClient, err := instance.NewInstanceAdminClient(ctx)
	if err != nil {
		return err
	}
	defer adminClient.Close()
	err = adminClient.DeleteInstanceConfig(ctx, &instancepb.DeleteInstanceConfigRequest{
		Name: fmt.Sprintf("projects/%s/instanceConfigs/%s", projectID, userConfigID),
	})
	if err != nil {
		return err
	}
	fmt.Fprintf(w, "Deleted instance configuration [%s]\n", userConfigID)
	return nil
}

Java

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。


import com.google.cloud.spanner.Spanner;
import com.google.cloud.spanner.SpannerException;
import com.google.cloud.spanner.SpannerOptions;
import com.google.cloud.spanner.admin.instance.v1.InstanceAdminClient;
import com.google.spanner.admin.instance.v1.DeleteInstanceConfigRequest;
import com.google.spanner.admin.instance.v1.InstanceConfigName;

class DeleteInstanceConfigSample {

  static void deleteInstanceConfig() {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "my-project";
    String instanceConfigId = "custom-user-config";
    deleteInstanceConfig(projectId, instanceConfigId);
  }

  static void deleteInstanceConfig(String projectId, String instanceConfigId) {
    try (Spanner spanner =
        SpannerOptions.newBuilder()
            .setProjectId(projectId)
            .build()
            .getService();
        InstanceAdminClient instanceAdminClient = spanner.createInstanceAdminClient()) {
      final InstanceConfigName instanceConfigName = InstanceConfigName.of(projectId,
          instanceConfigId);
      final DeleteInstanceConfigRequest request =
          DeleteInstanceConfigRequest.newBuilder().setName(instanceConfigName.toString()).build();

      try {
        System.out.printf("Deleting %s...\n", instanceConfigName);
        instanceAdminClient.deleteInstanceConfig(request);
        System.out.printf("Deleted instance configuration %s\n", instanceConfigName);
      } catch (SpannerException e) {
        System.out.printf(
            "Error: Deleting instance configuration %s failed with error message: %s\n",
            instanceConfigName, e.getMessage());
      }
    }
  }
}

Node.js

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// const instanceConfigId = 'custom-my-instance-config-id';
// const projectId = 'my-project-id';

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

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

const instanceAdminClient = spanner.getInstanceAdminClient();

async function deleteInstanceConfig() {
  // Deletes an instance config.

  try {
    // Delete the instance config.
    console.log(`Deleting ${instanceConfigId}...\n`);
    await instanceAdminClient.deleteInstanceConfig({
      name: instanceAdminClient.instanceConfigPath(
        projectId,
        instanceConfigId
      ),
    });
    console.log(`Deleted instance config ${instanceConfigId}.\n`);
  } catch (err) {
    console.error(
      'ERROR: Deleting instance config ',
      instanceConfigId,
      ' failed with error message ',
      err
    );
  }
}
deleteInstanceConfig();

PHP

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

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

/**
 * Deletes a customer managed instance configuration.
 * Example:
 * ```
 * delete_instance_config($instanceConfigId);
 * ```
 *
 * @param string $projectId The Google Cloud Project ID.
 * @param string $instanceConfigId The customer managed instance configuration id. The id must start with 'custom-'.
 */
function delete_instance_config(string $projectId, string $instanceConfigId)
{
    $instanceAdminClient = new InstanceAdminClient();
    $instanceConfigName = $instanceAdminClient->instanceConfigName(
        $projectId,
        $instanceConfigId
    );

    $request = new DeleteInstanceConfigRequest();
    $request->setName($instanceConfigName);

    $instanceAdminClient->deleteInstanceConfig($request);
    printf('Deleted instance configuration %s' . PHP_EOL, $instanceConfigId);
}

Python

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

def delete_instance_config(user_config_id):
    """Deleted the user-managed instance configuration."""
    spanner_client = spanner.Client()
    spanner_client.instance_admin_api.delete_instance_config(name=user_config_id)
    print("Instance config {} successfully deleted".format(user_config_id))

Ruby

如需了解如何安装和使用 Spanner 客户端库，请参阅 Spanner 客户端库。

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

def spanner_delete_instance_config user_config_id:
  # user_config_id = "The customer managed instance configuration ID, e.g projects/<project>/instanceConfigs/custom-nam11"

  instance_admin_client = Google::Cloud::Spanner::Admin::Instance.instance_admin
  instance_admin_client.delete_instance_config name: user_config_id
  puts "Deleted instance configuration #{user_config_id}"
end

后续步骤

了解如何插入、更新和删除数据数据操纵语言 (DML) 或 gcloud CLI。
为实例及其实例授予 IAM 角色数据库。
了解如何设计 Spanner 架构。
Spanner 配额和限制。