AWS CodeDeploy for ECS Fargate Blue/Green

Question

I am following the note:

https://aws.amazon.com/blogs/devops/use-aws-codedeploy-to-implement-blue-green-deployments-for-aws-fargate-and-amazon-ecs/

I can see new Blue/Green Deployment in ESC-Fargate Service when updating TaskDefinition and Service.

In CodeDeploy, I can see application AppECS-webapi-docker-cluster-webapi-docker-service2 and deployment ground DgpECS-webapi-docker-cluster-webapi-docker-service2

From Deployment Group, I create a Deployemnt:

What I should add in appspec?

Answer 1

"The AppSpec file for an Amazon ECS deployment specifies your task definition, container name, and container port."

Please refer to this article for more information - https://docs.aws.amazon.com/codedeploy/latest/userguide/tutorial-ecs-create-appspec-file.html