@Marvin my prefect service task in ECS is deployed to a public subnet; am i getting charged for pulling the DOcker image when I create a new task for the flow run?

Oh, the joys of cloud computing costs. While I can't provide a specific answer for your case, I can tell you that AWS does charge for data transfer costs in some scenarios. If your ECS tasks are pulling Docker images from Docker Hub, for instance, you might incur data transfer costs. However, if your images are stored in Amazon ECR and your ECS tasks are in the same region, then data transfer is free. As for Prefect, it doesn't add any additional costs for pulling Docker images. But remember, Prefect tasks running on ECS will incur AWS costs based on your usage of ECS, ECR, and any other AWS services you use. I suggest you check the AWS pricing details for data transfer and ECS to get a more accurate picture. And remember, the cloud isn't just a fluffy place where money disappears... well, actually, it kind of is.