(eks): Reusable Kubectl Provider for imported clusters

[SomeoneWeird]

It would be great if we could define reusable a Kubectl Provider for imported clusters with eks.Cluster.fromClusterAttributes.

Use Case

Currently when a cluster is referred to for the first time in a stack it deploys a new NestedStack that contains a single lambda. For accounts with a large number of stacks this can be a problem when getting close to the service limit of 200 stacks per account.

Proposed Solution

Being able to deploy a single provider for a cluster manually, and then do something like

eks.Cluster.fromClusterAttributes({
   ...
   provider: eks.Provider.fromExisting({ ... })
})

Another potentially solution is to change the KubectlProvider from being a NestedStack to being a Construct.

Other

There is already a getOrCreate function that calls _attachKubectlResourceScope, but this would only work for an existing eks.Cluster instance, not one being created using fromClusterAttributes

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change

---

This is a 🚀 Feature Request

[iliapolo]

Related to #12107 #14689

[github-actions]

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[SomeoneWeird]

This is still relevant.