Hi all! New to prefect v2 and wrapping my head around the deployment for an ECSTask. Correct me if I’m wrong, but each flow run has to deploy a new task definition to run? How can I have more than one flow run at a time?

If you pre-define your task definition, the flow run can use that instead.

Cool - but it still has to redeploy no?

What do you mean by redeploy?

Thanks for your help btw! hmmm.. From what I can tell, every time I click “Run” on a flow in the UI, my ECS task redeploys in AWS

You’ll need to be more specific than “redeploys” 🙂

Sorry! Let me try and spell out what I’ve done so far: 1. Created a custom

agent

Docker image with my flow code baked in and pushed it to ECR 2. Created an ECS service and task definition in Terraform and deployed it to my AWS instance that has a

container definition

called

prefect

that uses the custom Docker image 3. Created an ECSTask block in the Prefect UI with the

task_definition_arn

specified to my task definition created by terraform (I made sure that the ecs task doesn’t override anything defined)

And when you run the flow an ECS task is created from your task definition to run it, yeah?

it stops the current task

It shouldn’t stop any tasks

hmm so maybe another bug in my code that’s causing an exception