How do I run an agent on ECS I ve tried the docs on

Question

How do I run an agent on ECS I ve tried the docs on <https docs prefect io orchestration agents ecs html agent configuration> but it doesn t work I always get an error The error stack is on the thread

Levi Leal · Answer

``` 2021 01 28 15 15 55 597 ERROR agent | Failed to infer default networkConfiguration please explicitly configure using ` run task kwargs` Traceback most recent call last File home levi leal ve prefect io VQPvrm3t bin prefect line 8 in lt module gt sys exit cli File home levi leal ve prefect io VQPvrm3t lib python3 8 site packages click core py line 829 in call return self main args kwargs File home levi leal ve prefect io VQPvrm3t lib python3 8 site packages click core py line 782 in main rv = self invoke ctx File home levi leal ve prefect io VQPvrm3t lib python3 8 site packages click core py line 1259 in invoke return process result sub ctx command invoke sub ctx File home levi leal ve prefect io VQPvrm3t lib python3 8 site packages click core py line 1259 in invoke return process result sub ctx command invoke sub ctx File home levi leal ve prefect io VQPvrm3t lib python3 8 site packages click core py line 1259 in invoke return process result sub ctx command invoke sub ctx File home levi leal ve prefect io VQPvrm3t lib python3 8 site packages click core py line 1066 in invoke return ctx invoke self callback ctx params File home levi leal ve prefect io VQPvrm3t lib python3 8 site packages click core py line 610 in invoke return callback args kwargs File home levi leal ve prefect io VQPvrm3t lib python3 8 site packages prefect cli agent py line 374 in start start agent ECSAgent kwargs File home levi leal ve prefect io VQPvrm3t lib python3 8 site packages prefect cli agent py line 108 in start agent agent = agent cls labels=labels env vars=env vars kwargs File home levi leal ve prefect io VQPvrm3t lib python3 8 site packages prefect agent ecs agent py line 240 in init = self infer network configuration File home levi leal ve prefect io VQPvrm3t lib python3 8 site packages prefect agent ecs agent py line 280 in infer network configuration raise ValueError msg ValueError Failed to infer default networkConfiguration please explicitly configure using ` run task kwargs````

Levi Leal · Answer

I ve also created a task definition using the image prefecthq prefect all extras but the task never runs It always stop after a minute or two I m trying to use Fargate

Mariia Kerimova · Answer

Hello Levi Looks like the error is related to Network Configurations Do you provide any awsvpcConfigurations in ECSRun

Levi Leal · Answer

I m not trying to deploy any flow yet I m just trying to add an agent to my server I m running `prefect agent ecs start`

Mariia Kerimova · Answer

Gotcha Could you show a redacted flow you are trying to run and also can you check if there is a default VPC in your default AWS region

Mariia Kerimova · Answer

If you don t provide any network configuration and you don t have default vpc you might see this error

Levi Leal · Answer

I m not trying to run any flow yet I m just trying to get to see my agent on prefect s dashboard I ve just checked and I don t have a default VPC on my region

Mariia Kerimova · Answer

it s necessary to provide information about the network configuration to ECS agent So just for testing purposes you can switch to the region with default vpc set AWS DEFAULT REGION to that region and start the agent

Levi Leal · Answer

Worked with a default VPC

Levi Leal · Answer

Now my problem is how to configure it to work on the other region And how to set a task on ECS to run the agent

Levi Leal · Answer

Thanks for the help I ll try to find something on their docs If you have anything that might help me with this I d appreciate it a lot slightly smiling face

Mariia Kerimova · Answer

I m glad it worked So you will have to create a VPC in that region and provide it in ECSRun config I was running my agent on EC2 instance I didn t document my steps but I m going to terraform the provisioning of VPC and EC2 soon and I ll post it here

Levi Leal · Answer

Thanks a mil

Levi Leal · Answer

I managed to get a Local agent running on ECS I ll have to ask IT to set the VPC for me later One question I have now is how to use ECS health check

Levi Leal · Answer

Usually I use a `wget` or `curl` but prefect s image doesn t have any of those Do you know how I can do this health check