更改主题类型

您可以将导入主题转换为标准主题，也可以相反，将标准主题转换为导入主题。

将导入主题转换为标准主题

如需将导入主题转换为标准主题，请清除提取设置。执行以下步骤：

控制台

  1. 在 Google Cloud 控制台中，前往主题页面。

    打开“主题”。

  2. 点击导入主题。

  3. 在主题详情页面中，点击修改。

  4. 清除启用提取选项。

  5. 点击更新。

gcloud

  1. In the Google Cloud console, activate Cloud Shell.

    Activate Cloud Shell

    At the bottom of the Google Cloud console, a Cloud Shell session starts and displays a command-line prompt. Cloud Shell is a shell environment with the Google Cloud CLI already installed and with values already set for your current project. It can take a few seconds for the session to initialize.

  2. 运行 gcloud pubsub topics update 命令：

    gcloud pubsub topics update TOPIC_ID \
    --clear-ingestion-data-source-settings

    将 TOPIC_ID 替换为主题 ID。

将标准主题转换为导入主题

如需将标准主题转换为导入主题，请先检查您是否满足所有前提条件。

控制台

  1. 在 Google Cloud 控制台中，前往主题页面。

    转到“主题”

  2. 点击要转换为导入主题的主题。

  3. 在主题详情页面中，点击修改。

  4. 选择启用提取选项。

  5. 对于注入来源，请选择 Amazon Kinesis Data Streams。

  6. 输入以下详细信息：

    • Kinesis 数据流 ARN：您计划注入到 Pub/Sub 中的 Kinesis 数据流的 ARN。ARN 格式如下：arn:${Partition}:kinesis:${Region}:${Account}:stream/${StreamName}。

    • Kinesis 使用方 ARN：已注册到 AWS Kinesis Data Stream 的使用方资源的 ARN。ARN 格式如下：arn:${Partition}:kinesis:${Region}:${Account}:${StreamType}/${StreamName}/consumer/${ConsumerName}:${ConsumerCreationTimpstamp}。

    • AWS 角色 ARN：AWS 角色的 ARN。角色的 ARN 格式如下所示：arn:aws:iam:${Account}:role/${RoleName}。

    • 服务帐号：您在在 Google Cloud 中创建服务帐号中创建的服务帐号。

  7. 点击更新。

gcloud

  1. In the Google Cloud console, activate Cloud Shell.

    Activate Cloud Shell

    At the bottom of the Google Cloud console, a Cloud Shell session starts and displays a command-line prompt. Cloud Shell is a shell environment with the Google Cloud CLI already installed and with values already set for your current project. It can take a few seconds for the session to initialize.

  2. 运行 gcloud pubsub topics update 命令，其中包含以下示例中提及的所有标志：

      gcloud pubsub topics update TOPIC_ID 
    
         --kinesis-ingestion-stream-arn KINESIS_STREAM_ARN
    
         --kinesis-ingestion-consumer-arn KINESIS_CONSUMER_ARN
    
         --kinesis-ingestion-role-arn KINESIS_ROLE_ARN
    
         --kinesis-ingestion-service-account PUBSUB_SERVICE_ACCOUNT

    替换以下内容：

    • TOPIC_ID 是主题 ID。此字段无法更新。

    • KINESIS_STREAM_ARN 是您计划注入到 Pub/Sub 的 Kinesis 数据流的 ARN。ARN 格式如下：arn:${Partition}:kinesis:${Region}:${Account}:stream/${StreamName}。

    • KINESIS_CONSUMER_ARN 是注册到 AWS Kinesis Data Streams 的使用方资源的 ARN。ARN 格式如下：arn:${Partition}:kinesis:${Region}:${Account}:${StreamType}/${StreamName}/consumer/${ConsumerName}:${ConsumerCreationTimpstamp}。

    • KINESIS_ROLE_ARN 是 AWS 角色的 ARN。该角色的 ARN 格式如下：arn:aws:iam:${Account}:role/${RoleName}。

    • PUBSUB_SERVICE_ACCOUNT 是您在在 Google Cloud 中创建服务帐号中创建的服务帐号。

Go

试用此示例之前，请按照 Pub/Sub 快速入门：使用客户端库中的 Go 设置说明进行操作。如需了解详情，请参阅 Pub/Sub Go API 参考文档。

要向 Pub/Sub 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。 

import (
	"context"
	"fmt"
	"io"

	"cloud.google.com/go/pubsub"
)

func updateTopicType(w io.Writer, projectID, topicID string) error {
	// projectID := "my-project-id"
	// topicID := "my-topic"
	streamARN := "stream-arn"
	consumerARN := "consumer-arn"
	awsRoleARN := "aws-role-arn"
	gcpServiceAccount := "gcp-service-account"

	ctx := context.Background()
	client, err := pubsub.NewClient(ctx, projectID)
	if err != nil {
		return fmt.Errorf("pubsub.NewClient: %w", err)
	}
	defer client.Close()

	updateCfg := pubsub.TopicConfigToUpdate{
		// If wanting to clear ingestion settings, set this to zero value: &pubsub.IngestionDataSourceSettings{}
		IngestionDataSourceSettings: &pubsub.IngestionDataSourceSettings{
			Source: &pubsub.IngestionDataSourceAWSKinesis{
				StreamARN:         streamARN,
				ConsumerARN:       consumerARN,
				AWSRoleARN:        awsRoleARN,
				GCPServiceAccount: gcpServiceAccount,
			},
		},
	}
	topicCfg, err := client.Topic(topicID).Update(ctx, updateCfg)
	if err != nil {
		return fmt.Errorf("topic.Update: %w", err)
	}
	fmt.Fprintf(w, "Topic updated with kinesis source: %v\n", topicCfg)
	return nil
}

Java

试用此示例之前，请按照 Pub/Sub 快速入门：使用客户端库中的 Java 设置说明进行操作。如需了解详情，请参阅 Pub/Sub Java API 参考文档。

要向 Pub/Sub 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。 


import com.google.cloud.pubsub.v1.TopicAdminClient;
import com.google.protobuf.FieldMask;
import com.google.pubsub.v1.IngestionDataSourceSettings;
import com.google.pubsub.v1.Topic;
import com.google.pubsub.v1.TopicName;
import com.google.pubsub.v1.UpdateTopicRequest;
import java.io.IOException;

public class UpdateTopicTypeExample {
  public static void main(String... args) throws Exception {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String topicId = "your-topic-id";
    // Kinesis ingestion settings.
    String streamArn = "stream-arn";
    String consumerArn = "consumer-arn";
    String awsRoleArn = "aws-role-arn";
    String gcpServiceAccount = "gcp-service-account";

    UpdateTopicTypeExample.updateTopicTypeExample(
        projectId, topicId, streamArn, consumerArn, awsRoleArn, gcpServiceAccount);
  }

  public static void updateTopicTypeExample(
      String projectId,
      String topicId,
      String streamArn,
      String consumerArn,
      String awsRoleArn,
      String gcpServiceAccount)
      throws IOException {
    try (TopicAdminClient topicAdminClient = TopicAdminClient.create()) {
      TopicName topicName = TopicName.of(projectId, topicId);

      IngestionDataSourceSettings.AwsKinesis awsKinesis =
          IngestionDataSourceSettings.AwsKinesis.newBuilder()
              .setStreamArn(streamArn)
              .setConsumerArn(consumerArn)
              .setAwsRoleArn(awsRoleArn)
              .setGcpServiceAccount(gcpServiceAccount)
              .build();
      IngestionDataSourceSettings ingestionDataSourceSettings =
          IngestionDataSourceSettings.newBuilder().setAwsKinesis(awsKinesis).build();

      // Construct the topic with Kinesis ingestion settings.
      Topic topic =
          Topic.newBuilder()
              .setName(topicName.toString())
              .setIngestionDataSourceSettings(ingestionDataSourceSettings)
              .build();

      // Construct a field mask to indicate which field to update in the topic.
      FieldMask updateMask =
          FieldMask.newBuilder().addPaths("ingestion_data_source_settings").build();

      UpdateTopicRequest request =
          UpdateTopicRequest.newBuilder().setTopic(topic).setUpdateMask(updateMask).build();

      Topic response = topicAdminClient.updateTopic(request);

      System.out.println(
          "Updated topic with Kinesis ingestion settings: "   response.getAllFields());
    }
  }
}

Node.js

试用此示例之前，请按照 Pub/Sub 快速入门：使用客户端库中的 Node.js 设置说明进行操作。如需了解详情，请参阅 Pub/Sub Node.js API 参考文档。

要向 Pub/Sub 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。 

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const topicNameOrId = 'YOUR_TOPIC_NAME_OR_ID';
// const awsRoleArn = 'arn:aws:iam:...';
// const gcpServiceAccount = 'ingestion-account@...';
// const streamArn = 'arn:aws:kinesis:...';
// const consumerArn = 'arn:aws:kinesis:...';

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

// Creates a client; cache this for further use
const pubSubClient = new PubSub();

async function updateTopicIngestionType(
  topicNameOrId,
  awsRoleArn,
  gcpServiceAccount,
  streamArn,
  consumerArn
) {
  const metadata = {
    ingestionDataSourceSettings: {
      awsKinesis: {
        awsRoleArn,
        gcpServiceAccount,
        streamArn,
        consumerArn,
      },
    },
  };

  await pubSubClient.topic(topicNameOrId).setMetadata(metadata);

  console.log('Topic updated with Kinesis source successfully.');
}

Python

试用此示例之前，请按照 Pub/Sub 快速入门：使用客户端库中的 Python 设置说明进行操作。如需了解详情，请参阅 Pub/Sub Python API 参考文档。

要向 Pub/Sub 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。 

from google.cloud import pubsub_v1
from google.pubsub_v1.types import Topic
from google.pubsub_v1.types import IngestionDataSourceSettings
from google.pubsub_v1.types import UpdateTopicRequest
from google.protobuf import field_mask_pb2

# TODO(developer)
# project_id = "your-project-id"
# topic_id = "your-topic-id"
# stream_arn = "your-stream-arn"
# consumer_arn = "your-consumer-arn"
# aws_role_arn = "your-aws-role-arn"
# gcp_service_account = "your-gcp-service-account"

publisher = pubsub_v1.PublisherClient()
topic_path = publisher.topic_path(project_id, topic_id)

update_request = UpdateTopicRequest(
    topic=Topic(
        name=topic_path,
        ingestion_data_source_settings=IngestionDataSourceSettings(
            aws_kinesis=IngestionDataSourceSettings.AwsKinesis(
                stream_arn=stream_arn,
                consumer_arn=consumer_arn,
                aws_role_arn=aws_role_arn,
                gcp_service_account=gcp_service_account,
            )
        ),
    ),
    update_mask=field_mask_pb2.FieldMask(paths=["ingestion_data_source_settings"]),
)

topic = publisher.update_topic(request=update_request)
print(f"Updated topic: {topic.name} with AWS Kinesis Ingestion Settings")

C

试用此示例之前，请按照 Pub/Sub 快速入门：使用客户端库中的 C 设置说明进行操作。如需了解详情，请参阅 Pub/Sub C API 参考文档。

要向 Pub/Sub 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。 

namespace pubsub = ::google::cloud::pubsub;
namespace pubsub_admin = ::google::cloud::pubsub_admin;
[](pubsub_admin::TopicAdminClient client, std::string project_id,
   std::string topic_id, std::string stream_arn, std::string consumer_arn,
   std::string aws_role_arn, std::string gcp_service_account) {
  google::pubsub::v1::UpdateTopicRequest request;

  request.mutable_topic()->set_name(
      pubsub::Topic(std::move(project_id), std::move(topic_id)).FullName());
  auto* aws_kinesis = request.mutable_topic()
                          ->mutable_ingestion_data_source_settings()
                          ->mutable_aws_kinesis();
  aws_kinesis->set_stream_arn(stream_arn);
  aws_kinesis->set_consumer_arn(consumer_arn);
  aws_kinesis->set_aws_role_arn(aws_role_arn);
  aws_kinesis->set_gcp_service_account(gcp_service_account);
  *request.mutable_update_mask()->add_paths() =
      "ingestion_data_source_settings";

  auto topic = client.UpdateTopic(request);
  if (!topic) throw std::move(topic).status();

  std::cout << "The topic was successfully updated: " << topic->DebugString()
            << "\n";
}

Node.js (TypeScript)

在尝试此示例之前，请按照“Pub/Sub 快速入门：使用客户端库”中的 Node.js 设置说明进行操作。如需了解详情，请参阅 Pub/Sub Node.js API 参考文档。

要向 Pub/Sub 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。 

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const topicNameOrId = 'YOUR_TOPIC_NAME_OR_ID';
// const awsRoleArn = 'arn:aws:iam:...';
// const gcpServiceAccount = 'ingestion-account@...';
// const streamArn = 'arn:aws:kinesis:...';
// const consumerArn = 'arn:aws:kinesis:...';

// Imports the Google Cloud client library
import {PubSub, TopicMetadata} from '@google-cloud/pubsub';

// Creates a client; cache this for further use
const pubSubClient = new PubSub();

async function updateTopicIngestionType(
  topicNameOrId: string,
  awsRoleArn: string,
  gcpServiceAccount: string,
  streamArn: string,
  consumerArn: string
) {
  const metadata: TopicMetadata = {
    ingestionDataSourceSettings: {
      awsKinesis: {
        awsRoleArn,
        gcpServiceAccount,
        streamArn,
        consumerArn,
      },
    },
  };

  await pubSubClient.topic(topicNameOrId).setMetadata(metadata);

  console.log('Topic updated with Kinesis source successfully.');
}

如需详细了解 ARN，请参阅 Amazon 资源名称 (ARN) 和 IAM 标识符。