Subnets with multiple addressPrefixes cannot be used as a source or created

[smarterclayton]

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Terraform (and AzureRM Provider) Version

7427e8c

Affected Resource(s)

• azurerm_subnet

Terraform Configuration Files

data "azurerm_subnet" "preexisting_worker_subnet" {
  count = var.preexisting_network ? 1 : 0

  resource_group_name  = var.network_resource_group_name
  virtual_network_name = var.virtual_network_name
  name                 = var.worker_subnet
}

locals {
  # empty when subnet has multiple addressPrefixes (2+)
  address_prefix data.azurerm_subnet.preexisting_worker_subnet[0].address_prefix
}

Expected Behavior

• Retrieve address_prefixes when multiple are set on the subnet
• Allow creation of subnets with 2+ address_prefixes (ipv4 and ipv6, for example)

Actual Behavior

Nil data on retrieval, unable to create with existing API

[sigv]

For completeness sake in this ticket: The response to /subscriptions/guid/resourceGroups/name/providers/Microsoft.Network/virtualNetworks/vnet/subnets/subnet has a properties.subnets array where each object has properties.addressPrefix string, which gets replaced by a properties.addressPrefixes array of strings. This seems to be already getting worked on in #5139 though.

[ghost]

This has been released in version 2.8.0 of the provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading. As an example:

provider "azurerm" {
    version = "~> 2.8.0"
}
# ... other configuration ...

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. If you feel I made an error 🤖 🙉 , please reach out to my human friends 👉 [email protected]. Thanks!