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You're referring to the upstream cluster via the StackReference, but then also creating a new cluster with this bit of code:
```
const tvxCluster = new awsx.ecs.Cluster(`${identifier}-clusterb`, {
    cluster: tvxClusterS,
    vpc: tvxVpcIdS
})
```

Thanks for the feedback, but isn't that necessary in order to for `new awsx.ecs.EC2Service` to create a service in that cluster?

Is there another way of consuming the cluster?
I was inspired by this:
<https://www.pulumi.com/docs/guides/crosswalk/aws/ecs/#using-an-existing-ecs-cluster>