Predictive Auto Scaling for AWS ECS Services

Motivation

• I currently have a number of services deployed to ECS with EC2 Launch Type, but I can change that if needed.
• I would like to use the EC2 Predictive Scaling feature since traffic is very periodic (peak in day, slack at night).
• ECS Service Auto-Scaling uses Application Auto-Scaling and only supports these policies:
  • Target Tracking Scaling
  • Scheduled Scaling
  • Step Scaling

Questions

• Is it possible to use EC2 Predictive Auto Scaling while still deploying to ECS? If so, what is the simplest approach?
• Is there a reason AWS hasn't included Predictive Auto Scaling in ECS Service Auto-Scaling?

EDIT: As of Nov 2024, AWS finally implemented Predictive Autoscaling for ECS: https://github.com/aws/containers-roadmap/issues/1574#issuecomment-2492978472

There isn't a particular reason why predictive autoscaling is limited to EC2 instances only other than customers' interest/demand. I'd suggest you open an issue on the public roadmap for the AWS containers services so that the team can track the request and get more insides about the use case.