CIDR validation too strict for azurerm_cosmosdb_account.ip_range_filter

[AndreiBarbuOz]

Is there an existing issue for this?

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Terraform Version

1.9.5

AzureRM Provider Version

4.0.1

Affected Resource(s)/Data Source(s)

azurerm_cosmosdb_account

Terraform Configuration Files

resource "azurerm_cosmosdb_account" "hello_world" {
  name                = var.cosmosdb_account_name
  location            = var.location
  resource_group_name = var.resource_group_name
  offer_type          = "Standard"
  kind                = "GlobalDocumentDB"
  capabilities {
    name = "EnableServerless"
  }

  consistency_policy {
    consistency_level = "Session"
  }

  geo_location {
    location          = var.location
    failover_priority = 0
  }

  public_network_access_enabled = true
  ip_range_filter               = ["0.0.0.0"]
}

### Debug Output/Panic Output

```shell
N/A

Expected Behaviour

According to the Azure documentation, adding 0.0.0.0 to the filter should enable incoming connections from Azure datacenters

See docs: https://learn.microsoft.com/en-us/azure/cosmos-db/how-to-configure-firewall#allow-requests-from-global-azure-datacenters-or-other-sources-within-azure

Actual Behaviour

│ Error: expected "ip_range_filter.0" to be a valid CIDR Value, got 0.0.0.0: invalid CIDR address: 0.0.0.0
│
│   with azurerm_cosmosdb_account.hello_world,
│   on main.tf line 338, in resource "azurerm_cosmosdb_account" "hello_world":
│  338:   ip_range_filter               = ["0.0.0.0"]
│

Steps to Reproduce

No response

Important Factoids

No response

References

No response

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