List Supported K8s Versions

[shivasuri]

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Why do you want this feature?
A clear and concise description of why you want this feature. Include use-cases and any specific constraints you may have.

Dynamically creating clusters for daily builds across several k8s versions.

What feature/behavior/change do you want?
A clear and concise description of the change you would like to see in eksctl.

Do not hesitate, when appropriate, to share the exact commands or API you would like, and/or to share a diagram (e.g.: asciiflow.com): "a picture is worth a thousand words".

Just something as simple as eksctl list-k8s-versions

[shivasuri]

here is a hacky way to get the list for anyone who wants it:
echo $(eksctl create cluster --version invalid 2>&1) | rev | sed 's/ //g' | cut -d ":" -f-1 | rev

[smrutiranjantripathy]

I'm doing research on this issue. Would like to submit a PR.
I'm thinking of creating a new command under eksctl get as
eksctl get supportedk8sversions and maintaining the supported versions in a file in the repository. Please suggest your opinion on this approach.

[sayboras]

eksctl get supportedk8sversions and maintaining the supported versions in a file in the repository. Please suggest your opinion on this approach.

For your list of supported version, you can refer to https://github.com/weaveworks/eksctl/blob/master/pkg/apis/eksctl.io/v1alpha5/types.go#L297.

For the command, in my opinion existing eksctl version can be used to show supported kube versions (e.g. breaking down by eksctl client version and EKS server supported version)

[smrutiranjantripathy]

I have raised a PR. Kindly take a look and provide feedback.