ECS Service ARN format broken?

[afisher-stelligent]

Hi! I've got two separate CDK applications... one for my pipeline, the other for the application infrastructure being deployed. The application uses an ECS EC2 Cluster and service. The application infrastructure deploys correctly, and one of the outputs is the ECS service's ARN.

When the pipeline gets to it's deploy stage, it fails saying The Amazon ECS service 'CdkInfraStack-EcsCluster97242B84-t05dapt0OceE' does not exist. That is an accurate statement, as that's the cluster. When I look at the inputs for the deploy action in the console, it lists the cluster and services as the same value.

Here's my deploy action (really simple):

deploy_action = codepipeline_actions.EcsDeployAction(
            action_name="DeployAction",
            service=service,
            input=build_output
        )

The service is higher up in code, and looks like this:

service=ecs.Ec2Service.from_ec2_service_attributes(
            self,"ec2serviceSS",
            cluster=ecs.Cluster.from_cluster_arn(
                self, 'cluster',
                Fn.import_value('ecs-cluster')
            ),
            service_arn=Fn.import_value('ecs-service')
        )

The problem seems to be that the service definition is expecting the old format for a service ARN:
arn:aws:ecs:region:account:service/servicename when in reality what is getting returned from the infrastructure stack is arn:aws:ecs:region:account:service/clustername/servicename

Is this a bug in the CDK or is there something I'm missing somewhere? Right now the only fix is to go into the console and fix the inputs. I'd rather not have to do that, obviously as it creates drift.

[jumic]

In PR request #18140 a new feature flag was added to support the new ECS ARN format. It is available since CDK v2.35.0.

The new feature flag @aws-cdk/aws-ecs:arnFormatIncludesClusterName is mentioned in the CDK ECS documentation.

Could you please upgrade your CDK version to v2.35.0 or higher (if not already done) and enable the feature flag?

[afisher-stelligent]

This worked. Thanks for the pointer. Missed that nugget in the docs.

[github-actions[bot]]

Hello! Reopening this discussion to make it searchable.