[AWS CDK] Step Functions の EcsRunTask でタスクサイズをオーバーライド可能になりました

import * as ecs from 'aws-cdk-lib/aws-ecs';
import * as ec2 from 'aws-cdk-lib/aws-ec2';
import * as sfn from 'aws-cdk-lib/aws-stepfunctions';
import * as tasks from 'aws-cdk-lib/aws-stepfunctions-tasks';
import { Stack, StackProps } from 'aws-cdk-lib';
import { Construct } from 'constructs';

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

    // VPCの作成
    const vpc = new ec2.Vpc(this, 'MyVpc');

    // ECSクラスターの作成
    const cluster = new ecs.Cluster(this, 'MyCluster', {
      vpc,
    });

    // タスク定義の作成
    const taskDefinition = new ecs.FargateTaskDefinition(
      this,
      'TaskDefinition',
      {
        cpu: 256,
        memoryLimitMiB: 512,
        runtimePlatform: {
          cpuArchitecture: ecs.CpuArchitecture.ARM64,
        },
      }
    );

    // コンテナの追加
    taskDefinition.addContainer('Container', {
      image: ecs.ContainerImage.fromAsset('./nodejs-app'),
      portMappings: [{ containerPort: 3000 }],
    });

    // ECSタスクの実行
    const runTask = new tasks.EcsRunTask(this, 'RunTask', {
      integrationPattern: sfn.IntegrationPattern.REQUEST_RESPONSE,
      cluster,
      taskDefinition,
      launchTarget: new tasks.EcsFargateLaunchTarget()
    });

    // ステートマシンの作成
    new sfn.StateMachine(this, 'StateMachine', {
      definitionBody: sfn.DefinitionBody.fromChainable(runTask),
    });
  }
}

npm i aws-cdk-lib@latest aws-cdk@latest

import * as ecs from 'aws-cdk-lib/aws-ecs';
import * as ec2 from 'aws-cdk-lib/aws-ec2';
import * as sfn from 'aws-cdk-lib/aws-stepfunctions';
import * as tasks from 'aws-cdk-lib/aws-stepfunctions-tasks';
import { Stack, StackProps } from 'aws-cdk-lib';
import { Construct } from 'constructs';

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

    // VPCの作成
    const vpc = new ec2.Vpc(this, 'MyVpc');

    // ECSクラスターの作成
    const cluster = new ecs.Cluster(this, 'MyCluster', {
      vpc,
    });

    // タスク定義の作成
    const taskDefinition = new ecs.FargateTaskDefinition(
      this,
      'TaskDefinition',
      {
        cpu: 256,
        memoryLimitMiB: 512,
        runtimePlatform: {
          cpuArchitecture: ecs.CpuArchitecture.ARM64,
        },
      }
    );

    // コンテナの追加
    taskDefinition.addContainer('Container', {
      image: ecs.ContainerImage.fromAsset('./nodejs-app'),
      portMappings: [{ containerPort: 3000 }],
    });

    // ECSタスクの実行
    const runTask = new tasks.EcsRunTask(this, 'RunTask', {
      integrationPattern: sfn.IntegrationPattern.REQUEST_RESPONSE,
      cluster,
      taskDefinition,
      launchTarget: new tasks.EcsFargateLaunchTarget(),
      cpu: '512', // 最大 CPU サイズを上書き
      memoryMiB: '1024', // 最大メモリサイズを上書き
    });

    // ステートマシンの作成
    new sfn.StateMachine(this, 'StateMachine', {
      definitionBody: sfn.DefinitionBody.fromChainable(runTask),
    });
  }
}

$ npx cdk diff
Stack CdkSampleStack
Hold on while we create a read-only change set to get a diff with accurate replacement information (use --no-change-set to use a less accurate but faster template-only diff)
Resources
[~] AWS::StepFunctions::StateMachine StateMachine StateMachine2E01A3A5
 └─ [~] DefinitionString
     └─ [~] .Fn::Join:
         └─ @@ -27,6 +27,6 @@
            [ ]         "GroupId"
            [ ]       ]
            [ ]     },
            [-]     "\"]}},\"LaunchType\":\"FARGATE\"}}}}"
            [+]     "\"]}},\"Overrides\":{\"Cpu\":\"512\",\"Memory\":\"1024\"},\"LaunchType\":\"FARGATE\"}}}}"
            [ ]   ]
            [ ] ]

✨  Number of stacks with differences: 1

    // ECSタスクの実行
    const runTask = new tasks.EcsRunTask(this, 'RunTask', {
      integrationPattern: sfn.IntegrationPattern.REQUEST_RESPONSE,
      cluster,
      taskDefinition,
      launchTarget: new tasks.EcsFargateLaunchTarget(),
      // 不正な CPU および メモリーの組み合わせを指定
      cpu: '128', // 最大 CPU サイズを上書き
      memoryMiB: '1024', // 最大メモリサイズを上書き
    });