Standalone Fargate task definition

fargate-standalone-stack.ts

import * as cdk from 'aws-cdk-lib';
import { Construct } from 'constructs';
import * as ec2 from 'aws-cdk-lib/aws-ec2';
import * as ecs from 'aws-cdk-lib/aws-ecs';
import * as iam from 'aws-cdk-lib/aws-iam';
import * as logs from 'aws-cdk-lib/aws-logs';

/**
 * You can run this task definition via CLI, SDK, lambda
 * CLI: aws ecs run-task --cluster <your-cluster-name> --task-definition <task-definition-arn> --launch-type FARGATE --network-configuration "awsvpcConfiguration={subnets=[<subnet-id>],securityGroups=[<security-group-id>],assignPublicIp=ENABLED}"
 */
export class FargateStandaloneStack extends cdk.Stack {
  constructor(scope: Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    // Create a VPC (Virtual Private Cloud)
    const vpc = new ec2.Vpc(this, 'FargateVpc', {
      maxAzs: 2, // max availability zones
      natGateways: 1, // create NAT gateway for internet access
    });

    // Create an ECS cluster
    const cluster = new ecs.Cluster(this, 'FargateCluster', {
      vpc,
    });

    // Define a task definition for Fargate
    const taskDefinition = new ecs.FargateTaskDefinition(this, 'FargateTaskDef', {
      memoryLimitMiB: 1024,
      cpu: 512,
    });

    // Add a container to the task definition
    taskDefinition.addContainer('FargateBatchContainer', {
      image: ecs.ContainerImage.fromRegistry('amazon/amazon-ecs-sample'), // Use a sample image from Amazon ECR
      logging: ecs.LogDrivers.awsLogs({
        streamPrefix: 'FargateBatch',
        logGroup: new logs.LogGroup(this, 'FargateBatchLogGroup', {
          removalPolicy: cdk.RemovalPolicy.DESTROY,
        }),
      }),
    });

    // You can trigger the task manually from other AWS services
    // For example, by creating a Lambda function or manually from AWS Console
    new cdk.CfnOutput(this, 'TaskDefinitionArn', {
      value: taskDefinition.taskDefinitionArn,
      description: 'The ARN of the task definition',
    });
  }
}