s3-lambda-cdk-sample.ts

s3-lambda-cdk-sample.ts

import * as lambda from '@aws-cdk/aws-lambda';
import * as s3 from '@aws-cdk/aws-s3';
import { App, Construct, Stack, StackProps, CfnOutput, RemovalPolicy } from '@aws-cdk/core';
// get date function.
function getdate() {
  var date = new Date();
  var mm = date.getMonth() + 1; // getMonth() is zero-based
  var dd = date.getDate();
  return [date.getFullYear(),
    (mm>9 ? '' : '0') + mm,
    (dd>9 ? '' : '0') + dd].join('');
};


export class MyStack extends Stack {
  constructor(scope: Construct, id: string, props: StackProps = {}) {
    super(scope, id, props);

    const mybucket = new s3.Bucket(this, 'mybucket', {
      bucketName: `mybucket-create-by-aws-cdk-${getdate()}`,
      removalPolicy: RemovalPolicy.DESTROY,
    });
    const lambda_s3 = new lambda.Function(this, 'initFun', {
      code: lambda.InlineCode.fromInline(`
import os
bucket = os.getenv('S3_BUCKET')
def handler(event, context):
    return f'Hello initline Python Lambda, bucket name is {bucket}'`),
      runtime: lambda.Runtime.PYTHON_3_8,
      handler: 'index.handler',
      environment: { S3_BUCKET: mybucket.bucketName },
    });
    new CfnOutput(this, 'mybucket_output', {
      value: mybucket.bucketName,
    });

    new CfnOutput(this, 'lambda_s3_output', {
      value: lambda_s3.functionName,
    });
  }
}

const devEnv = {
  account: process.env.CDK_DEFAULT_ACCOUNT,
  region: process.env.CDK_DEFAULT_REGION,
};

const app = new App();

new MyStack(app, 'sys-ops-demo', { env: devEnv });

app.synth();