What is an Application Load Balancer? – Elastic Load Balancing

Amazon CloudWatch — Enables you to monitor your load balancer and take action as needed. For more information, see CloudWatch metrics for your Application Load Balancer. Amazon ECS — Enables you to run, stop, and manage Docker containers on a cluster of EC2 instances. You can configure your load balancer to route traffic to your containers. …

https://docs.aws.amazon.com/elasticloadbalancing/latest/application/introduction.html