gist.js

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

    const vpc = new ec2.VpcNetwork(this, 'MyVpc', {
      maxAZs: 3 // Default is all AZs in region
    });

    const cluster = new ecs.Cluster(this, 'MyCluster', {
      vpc: vpc
    });

    // Create a load-balanced Fargate service and make it public
    new ecs.LoadBalancedFargateService(this, 'MyFargateService', {
      cluster: cluster,  // Required
      cpu: '512', // Default is 256
      desiredCount: 6,  // Default is 1
      image: ecs.ContainerImage.fromAsset(this, 'MyImage', { directory: './my-app-dir' }),
      memoryMiB: '2048',  // Default is 512
      publicLoadBalancer: true  // Default is false
    });
  }
}