Compute Evolution

EC2（仮想マシン）からServerless（Lambda）へ。管理コストを極限まで下げる。

Serverless
サーバー管理不要。コードを実行した分だけ課金される（Lambdaなど）。

Lambda Function

index.mjs
// AWS Lambda (Node.js 20.x)
export const handler = async (event) => {
  console.log("Event:", event);


  return {
    statusCode: 200,
    body: JSON.stringify({
      message: "Hello from Serverless!",
      input: event,
    }),
  };
};

Infrastructure as Code (CDK)

stack.ts
// AWS CDK v2 (Infrastructure as Code)
import * as cdk from 'aws-cdk-lib';
import * as s3 from 'aws-cdk-lib/aws-s3';


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


    // Create an S3 Bucket (Encrypted & Private by default)
    new s3.Bucket(this, 'MySecureBucket', {
      encryption: s3.BucketEncryption.S3_MANAGED,
      blockPublicAccess: s3.BlockPublicAccess.BLOCK_ALL,
      versioning: true,
    });
  }
}