Question

A retail company runs three microservices (product catalog, shopping cart, and user profile) as separate Amazon ECS services behind a single public entry point. The team wants customers to reach each microservice through the same domain name, with requests routed to the correct service based on the URL path (for example, /catalog, /cart, and /profile). The solution must scale automatically and require minimal operational overhead. Which approach BEST meets these requirements?

Accepted Answer

Deploy a single Application Load Balancer with path-based routing rules that forward each URL path pattern to a different target group, one per ECS service.

Answer

Deploy three separate Network Load Balancers, one for each ECS service, and use Amazon Route 53 weighted routing to distribute traffic among them.

Answer

Deploy a single Network Load Balancer and configure listener rules to inspect the HTTP path and forward to different target groups.

Answer

Deploy one Application Load Balancer per microservice and place Amazon CloudFront in front to route requests by path to the correct load balancer.