Support for current_kubernetes_version on azurerm_kubernetes_cluster resource

[stevehipwell]

Is there an existing issue for this?

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Description

I'd like to be able to get the current Kubernetes version from an azurerm_kubernetes_cluster resource. This information would be generally useful for reporting purposes and advanced automation use cases.

This change would also allow us to work around a current AKS bug with alias expansion for node pools (which we can't work around with the AKS suggested fix due to how the provider deals with setting the orchestrator version empty). We're currently having to use a shell script to get this value.

This data is already available in the provider and would only need to be exposed on the resource.

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

azurerm_kubernetes_cluster

Potential Terraform Configuration

resource "azurerm_kubernetes_cluster" "default" {
  name               = "test"
  kubernetes_version = "1.27"
}

resource "azurerm_kubernetes_cluster_node_pool" "default" {
  name                  = "test"
  kubernetes_cluster_id = azurerm_kubernetes_cluster.default.id
  orchestrator_version  = azurerm_kubernetes_cluster.default.current_kubernetes_version
}

References

• Support for currentKubernetesVersion in data source azurerm_kubernetes_cluster #22920
• Data Source: azurerm_kubernetes_cluster - add current_kubernetes_version #22986

[pszypowicz]

Hello,

Any updates? This is really missing at the moment in the provider.

[steph409]

Hi,
there is an attribute kubernetes_version instead of current_kubernetes_version on the azurerm_kubernetes_cluster resource. Why are you not using this one instead:

resource "azurerm_kubernetes_cluster" "default" {
  name               = "test"
  kubernetes_version = "1.27"
}

resource "azurerm_kubernetes_cluster_node_pool" "default" {
  name                  = "test"
  kubernetes_cluster_id = azurerm_kubernetes_cluster.default.id
  orchestrator_version  = azurerm_kubernetes_cluster.default.kubernetes_version
}

[stevehipwell]

@steph409 there are two versions associated with an AKS cluster. This is reflected in the data source but not the resource.

[github-actions]

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