I am working on a complicated structure on AWS, which includes an API gateway for users connecting the website located inside a VPC. In this VPC, I have planned to use ALB to load balancing the traffic from outside to different ECS Fargate tasks.
For own purpose, I have planned to use Blue/Green Deployment in CodeDeploy session for deploying the services located in ECS fargate. From the documentations of AWS, I understand the listener port of production and test environment can be set up at load balancer.
I would like to know whether the listener port can be set up at API gateway. As I hope to use CloudFormation for this approach, it would be better related to it. Thanks!