I've got an

ECSAgent

running (in ECS, using the base prefect image with

prefect agent ecs start

), but the tasks it spins up are in the wrong subnet so I want to customise the task definition. It looks like I can pass in a task definition path but that's a bit troublesome because now I need to store file somewhere accessible to the agent. Is there a way to pass a task definition ARN instead? It looks like I can pass that to

ECSRun

but the subnet ID is generated by Terraform so I can't figure out how to get it into the Python...

Have you seen this ? You can pass it to the agent. Or am I missing something?

I think that's the Arn for the task role, not the task definition? Or there's the --task-definition Param but that takes a path and I was trying to avoid uploading a file separately

Ah my bad. You are right. Let me think about this

it's not totally dynamic, but we have multiple environments with different subnets, so I can't just bake it into the ECSRun

Oh yeah that is true. You need subnet to go in

run_task_kwargs

or on the agent

run_task_kwargs

I've got it to work by putting the run_task_kwargs in S3 and reading it from there. I'm happy to share my solution in case it helps future readers - is there a good place for me to do that?

Yes! Slack is too temporary so I’d appreciate a post with your setup here so that I can link it to future people