Service Connect + ECS on EC2

Question

I tried to set up Service Connect on ECS based on EC2 instances.
I created a task definition and service based on that task definition, in service I enabled Service Connect.
Service failed to deploy with such a message:
```
service *serviceName* was unable to place a task because no container instance met all of its requirements. The closest matching container-instance *containerInstanceId* is missing an attribute required by your task. For more information, see the Troubleshooting section of the Amazon ECS Developer Guide.

```
How could I troubleshoot this issue? (Troubleshooting section of the Amazon ECS Developer Guide does not provide useful information)
My container has enough resources and the service started successfully without Service Connect. 
I tried to check requirements using CLI tool but found nothing:
```
% ecs-cli check-attributes --task-def *taskDefName*:*rev* --container-instances *taskInstanceId* --cluster *clusterName*
Container Instance                   Missing Attributes
*clusterName*  None
```
And I am confused about how to understand specific Service Connect requirements, where I can find it in EC2 instance context?

KonH · Accepted Answer

Issue was fixed after updating to latest Amazon ECS-Optilized Amazon Liniux 2 (20230406)

rePost-User-7050038 · Answer

"After a lot of effort, I've finally cracked it! Here's the solution you can watch: AWS ECS Service Connect: Enabling Communication Between ECS Services.

For a deeper dive, here’s the entire series: AWS ECS Comprehensive Series.

And if you like what you see, consider subscribing to my channel: Prograamer YouTube Channel."

For a deeper dive, here’s the entire series: [AWS ECS Comprehensive Series](https://www.youtube.com/watch?v=8nu-FYxOeZk&list=PLL6_1MP5CZ4tnhnkAr85gMwGcxRRsktB4&ab_channel=Prograamer).

And if you like what you see, consider subscribing to my channel: [Prograamer YouTube Channel](https://www.youtube.com/@prograamer?sub_confirmation=1)."

Service Connect + ECS on EC2

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