Hi, I want to set up a Prefect agent in AWS ECS. I've set my AWS cred in

~/.aws/config

and did

prefect auth login

using my API Token. Then I'm running the

prefect agent ecs start

command, expecting an Agent to be created in Fargate and linked to my Cloud, but I'm getting the following error:

ERROR - agent | Failed to infer default networkConfiguration, please explicitly configure using `--run-task-kwargs`
Traceback (most recent call last):
...
ValueError: Failed to infer default networkConfiguration, please explicitly configure using `--run-task-kwargs`

What am I doing wrong?

Hi @Sumant Agnihotri, the agent needs to be connected to the cluster to submit work to. If you have just the default VPC, the agent will be able to infer it. If not, it won’t know which one to connect to. So you need to specify using the

run-task-kwargs

Thanks. Can you please share what the

options.yaml

file will look like.

I took a look and could not find anything. The closest example I have is the task definition which looks like this , but those are different configs. You want one for

run-task-kwargs

which is a different set of inputs (there is a link to the AWS docs from the Agent docs for that)

@Kevin Kho I tried with

cluster

, it didn't work. As a workaround, I created a Docker that just installs and runs Prefect

local agent

, then I'm running the docker image on Fargate.

Ah that will work, though of course less ideal. Today is a holiday but ping me tomorrow and I can try to test a working YAML

Hey @Kevin Kho. I'm having this same issue. I tried with

cluster

as well and I'm getting the same error. I can't find a full example YAML file either. Were you able to create a working one?

Hey Blake, I was OOO, will look into this tomorrow. Ping me if I don’t get back to you

Hi folks. I’m having the same error. Any further thoughts on this?