使用 AWS CDK 创建 AWS DMS 任务

Question

我正在尝试使用 AWS CDK 创建 AWS DMS 任务。但我不知道从哪里开始。我找不到关于如何使用 CDK 创建 DMS 任务的良好文档。我找到了有关这两个主题的文章，但找不到解决此问题的文章 - 讨论如何使用 CDK 创建 DMS 任务。

谁能指出我正确的文章来解释这一点或帮助我做到这一点？

PS - 我已经使用 dms maven 依赖项初始化了项目。我正在使用JAVA。

谢谢

Answer 1

没有 CDK 构造来简化 DMS 的使用。因此，您必须使用CloudFormation 资源：CfnEndpoint、CfnReplicationTask 等。

我提供以下示例来帮助您入门，但请注意，DMS CloudFormation 资源非常具有挑战性。

import * as cdk from '@aws-cdk/core';
import * as dms from '@aws-cdk/aws-dms';

export class DmsStack extends cdk.Stack {
  constructor(scope: cdk.Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    // Create a subnet group that allows DMS to access your data
    const subnet = new dms.CfnReplicationSubnetGroup(this, 'SubnetGroup', {
      replicationSubnetGroupIdentifier: 'cdk-subnetgroup',
      replicationSubnetGroupDescription: 'Subnets that have access to my data source and target.',
      subnetIds: [ 'subnet-123', 'subnet-456' ],
    });

    // Launch an instance in the subnet group
    const instance = new dms.CfnReplicationInstance(this, 'Instance', {
      replicationInstanceIdentifier: 'cdk-instance',

      // Use the appropriate instance class: https://docs.aws.amazon.com/dms/latest/userguide/CHAP_ReplicationInstance.Types.html
      replicationInstanceClass: 'dms.t2.small',

      // Setup networking
      replicationSubnetGroupIdentifier: subnet.replicationSubnetGroupIdentifier,
      vpcSecurityGroupIds: [ 'sg-123' ],
    });

    // Create endpoints for your data, see https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-dms-endpoint.html
    const source = new dms.CfnEndpoint(this, 'Source', {
      endpointIdentifier: 'cdk-source',
      endpointType: 'source',
      engineName: 'mysql',

      serverName: 'source.database.com',
      port: 3306,
      databaseName: 'database',
      username: 'dms-user',
      password: 'password-from-secret',
    });

    const target = new dms.CfnEndpoint(this, 'Target', {
      endpointIdentifier: 'cdk-target',
      endpointType: 'target',
      engineName: 's3',

      s3Settings: {
        bucketName: 'target-bucket'
      },
    });

    // Define the replication task
    const task = new dms.CfnReplicationTask(this, 'Task', {
      replicationInstanceArn: instance.ref,

      migrationType: 'full-load', // https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-dms-replicationtask.html#cfn-dms-replicationtask-migrationtype
      sourceEndpointArn: source.ref,
      targetEndpointArn: target.ref,
      tableMappings: JSON.stringify({
        "rules": [{
          "rule-type": "selection",
          "rule-id": "1",
          "rule-name": "1",
          "object-locator": {
            "schema-name": "%",
            "table-name": "%"
          },
          "rule-action": "include"
        }]
      })
    })
  }
}