ECS cluster scale in / out tasks based on CPU/memory

Question

I have a problem statement. Can anyone answer it for me.

You have a Microservice running in your ECS cluster.
How would you manage below tasks. (Use terraform)
   a. You want to scale in/out the tasks based on CPU/Memory utilisation
   b. You want to scale in/out the tasks based on the requests made to the service

Answer 1

Scaling of ECS services on Fargate is explained in:

• How can I configure Amazon ECS Service Auto Scaling on Fargate?

a.You want to scale in/out the tasks based on CPU/Memory utilisation

You use ECSServiceAverageCPUUtilization or ECSServiceAverageMemoryUtilization.

b.You want to scale in/out the tasks based on the requests made to the service

You use ALBRequestCountPerTarget.