We went with Fargate because it keeps things lean — no servers to manage, no patching, no scaling headaches. It’s perfect for our bursty workloads, since we only pay when containers actually run . Plus autoscaling just works .
In the github you can find comments to easily switch to EC2 if your workload needs it
Just as an aside for the fargate convo... we switched from fargate to EC2 auto scaling group so we could run a custom AMI that has our container images (which are larger than I like) pre-baked and we went from a ~3 minute startup in fargate to ~30 seconds with the ASG when it's not triggering a scaling action.
We're using prefect not Temporal and each prefect flow launches in a discrete ECS task so the waiting added up.