azurerm_kubernetes_service_versions data source add default stable version support

[ianarsenault]

Is there an existing issue for this?

• [X] I have searched the existing issues

Description

The azurerm_kubernetes_service_versions data source should have support for selecting stable version, not just latest version as these are different between terraform and the console

Right now if you want to use the data source the latest_version == 1.29.4 at time of creating this issue but the default version is 1.28.9. There's no way to easily select default without knowing what the prefix should be every time you deploy a AKS cluster

data "azurerm_kubernetes_service_versions" "current" {
  location = var.location
  include_preview = false
}

output "azure_aks_versions" {
  value = data.azurerm_kubernetes_service_versions.current
}

  + aks_versions = {
      + id              = "/subscriptions/<SUBSCRIPTION>/providers/Microsoft.ContainerService/locations/<REGION>"
      + include_preview = false
      + latest_version  = "1.29.4"
      + location        = "<region>"
      + timeouts        = null
      + version_prefix  = null
      + versions        = [
          + "1.29.4",
          + "1.29.2",
          + "1.28.9",
          + "1.28.5",
          + "1.27.9",
          + "1.27.7",
        ]
    }

In the console 1.28.9 is the default and this should be an option within terraform instead of needing to pass in prefix which requires knowing Azures current stable/default. In GCP/GKE they have a similar option data.google_container_engine_versions.gke_versions.release_channel_default_version["STABLE"] which would be great to have in AKS as we always want to deploy stable/default that's available in console in terraform deployments.

New or Affected Resource(s)/Data Source(s)

azurerm_kubernetes_service_versions

Potential Terraform Configuration

No response

References

https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/data-sources/kubernetes_service_versions

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[aristosvo]

Hi @ianarsenault!

I filed a PR for it, will keep you updated.

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