[azurerm_kubernetes_cluster] - Add Option for Node Resource Group Name

[slynickel]

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Description

With the 2019-04-15 release of AKS support for custom resource group names was added.

• New Features
  • Customers may now provide custom Resource Group names.
    • This means that users are no longer locked into the MC_* resource name group. On cluster creation you may pass in a custom RG and AKS will inherit that RG, permissions and attach AKS resources to the customer provided resource group.
    • Currently, you must pass in a new RG (resource group) must be new, and can not be a pre-existing RG. We are working on support for pre-existing RGs.
    • This change requires newly provisioned clusters, existing clusters can not be migrated to support this new capability. Cluster migration across subscriptions and RGs is not currently supported.

This feature request is to have the custom resource group name field added to the terraform provider.

New or Affected Resource(s)

• azurerm_kubernetes_cluster

Potential Terraform Configuration

I'm not completely clear if go-sdk actually offers this support yet but I wanted to get the issue out there to see if other folks also want this. Right now the 2019-04-30 version of the go-sdk has this node resource group property marked as READ-ONLY. I could be reading this wrong though. The CreateOrUpdate part of the client does reference the 2019-02-01 version of the rest API. That version of the rest API has the node resource as a configuration option.

As for syntax to add to azurerm_kubernetes_cluster, since it's a single response item with no dependencies I wouldn't expect this to need it's own block. Maybe that's better form though.

References

• https://github.com/Azure/AKS/blob/2019-04-15/CHANGELOG.md#release-04-15-2019
• https://docs.microsoft.com/en-us/rest/api/aks/managedclusters/createorupdate#managedcluster
• https://docs.microsoft.com/en-us/azure/aks/faq#can-i-provide-my-own-name-for-the-aks-infrastructure-resource-group
• https://github.com/Azure/azure-sdk-for-go/blob/master/services/containerservice/mgmt/2019-04-30/containerservice/models.go#L1731

[ghost]

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