TalosOSv1.5.5: AWS CCM can't find the instance via the API so it can't configure the nodes in peer region

[Rammurthy5]

I have a TalosOS v1.5.5 with kubespan enabled and CCM installed cluster.

What happened: CCM should configure all the worker nodes in the cluster but it is not if kubespan enabled and peer regional nodes are present.

What you expected to happen: CCM should configure all the worker nodes if they are part of single cluster, and reachable.

How to reproduce it (as minimally and precisely as possible): Launch talosOS cluster following official documentation, and add options to enable externalLoadBalancer.

Anything else we need to know?:

E``` 0122 13:23:49.763321 1 node_controller.go:236] error syncing 'ip-xxxx.region.compute.internal': failed to get provider ID for node ip-xxxx.region.compute.internal at cloudprovider: failed to get instance ID from cloud provider: instance not found, requeuing I0122 13:23:49.780400 1 node_controller.go:427] Initializing node ip-xxxx.eu-west-1.compute.internal with cloud provider

**Environment**:
- Kubernetes version (use `kubectl version`): 1.29
- Cloud provider or hardware configuration: aws
- OS (e.g. from /etc/os-release): talos 1.5.5
- Kernel (e.g. `uname -a`):
- Install tools:
- Others:

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/kind bug

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[cartermckinnon]

peer regional nodes are present.

Do you mean the nodes and CCM are in different regions?

[Rammurthy5]

Control plane and worker nodes on two different regions which are Vpc peered and kubespanned.

[cartermckinnon]

So, this particular failure is caused by CCM trying to call ec2:DescribeImages in the region it's running, for an instance in another region. I'd expect you to see more papercuts with this setup, because CCM assumes in many places that the AWS resources are in a single region. I don't think removing that assumption would be simple.

You could potentially run an instance of CCM in each region as a workaround.

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