add datasource for aws eks describe-addon-versions

[awoimbee]

Relates to: https://github.com/terraform-aws-modules/terraform-aws-eks/issues/1385#issuecomment-990100231

Is your request related to a problem? Please describe.

I manage kubernetes clusters, some deployments like kube-proxy are (strangely) not managed by EKS by default. Like, come on ! I got informed of the issue by AlertManager !

Turns out Terraform has aws_eks_addon, but I need to give this resource addon_version, which I don't want to do, I just want the addon version to match the kubernetes version.

Describe the solution you'd like.

A datasource called something like aws_describe_addon_versions so I don't have to call the aws cli (aws eks describe-addon-versions --addon-name kube-proxy --query 'addons[*].addonVersions[0].addonVersion'). And / or I would like the ability to set addon_version = "latest" in aws_eks_addon.

Describe alternatives you've considered.

Call the aws cli (aws eks describe-addon-versions --addon-name kube-proxy --query 'addons[*].addonVersions[0].addonVersion')

EDIT: I'm so sorry, I didn't see I was on terraform-aws-modules/terraform-aws-eks and not hashicorp/terraform-provider-aws, I guess this issue is still relevant to this project, but feel free to close.

[bryantbiggs]

Requires upstream provider support https://github.com/hashicorp/terraform-provider-aws/issues/20725

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This issue has been automatically marked as stale because it has been open 30 days with no activity. Remove stale label or comment or this issue will be closed in 10 days

[bryantbiggs]

This is a breaking change due to requiring the v4.x of the AWS provider and is scheduled for the v19.x release https://github.com/terraform-aws-modules/terraform-aws-eks/compare/master...bryantbiggs:refactor/incorporate-autoscaling-module?expand=1

[antonbabenko]

This issue has been resolved in version 19.0.0 :tada:

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