[strivingtobe]

> At the time we did not auto-scale any of our containerized services and were spending a lot of unnecessary money to keep services provisioned such that they could always handle peak load, even on nights and weekends when our traffic is much lower.

Huh? You've been running on AWS for how long and haven't been using auto scaling AT ALL? How was this not priority number one for the company to fix? You're just intentionally burning money at that point!

> While there is some support for auto-scaling on ECS, the Kubernetes ecosystem has robust open source offerings such as Keda for auto-scaling. In addition to simple triggers like CPU utilization, Keda supports scaling on the length of an AWS Simple Queue Service (SQS) queue as well as any custom metrics from Datadog.

ECS autoscaling is easy, and supports these things. Fair play if you just really wanted to use CNCF projects, but this just seems like you didn't really utilize your previous infrastructure very well.