(eks): Kubernetes 1.20 support

[kirintwn]

Allow user to select Kubernetes version 1.20

https://docs.aws.amazon.com/eks/latest/userguide/kubernetes-versions.html#kubernetes-1.20

Use Case

Proposed Solution

Other

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

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This is a 🚀 Feature Request

[iliapolo]

Hi @kirintwn - thanks for this.

I am unassigning and marking this issue as p2, which means that we are unable to work on this immediately.

We use +1s to help prioritize our work, and are happy to revaluate this issue based on community feedback. You can reach out to the cdk.dev community on Slack to solicit support for reprioritization.

In the meantime, you can specify a custom version string using:

new eks.Cluster(this, 'Cluster', {
  version: eks.KubernetesVersion.of("1.20")
})

[kirintwn]

Hey @iliapolo, I have already submitted a PR 8 days ago, please review, thanks.

[shubham391]

@iliapolo Thank you for providing the workaround.

[github-actions]

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