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Terraform Version

1.7.5

AzureRM Provider Version

3.109.0

Affected Resource(s)/Data Source(s)

azurerm_network_service_tags

Terraform Configuration Files

data "azurerm_network_service_tags" "az_fd_frontend" {
  service  = "AzureFrontDoor.Frontend"
  location = "northeurope"
}

Debug Output/Panic Output

Condensed log showing the full response from the Azure service tag API (including the service tag `AzureFrontDoor.Frontend`):
https://gist.github.com/hilariocoelho/145c7e4c03839066248d50fad3d8372d

Expected Behaviour

The data source should've returned the list of address prefixes that are listed under the service tag AzureFrontDoor.Frontend.

Actual Behaviour

│ Error: specified service tag `AzureFrontDoor.Frontend` not found globally
│ 
│   with data.azurerm_network_service_tags.az_fd_frontend,
│   on main.tf line 16, in data "azurerm_network_service_tags" "az_fd_frontend":
│   16: data "azurerm_network_service_tags" "az_fd_frontend" {

Steps to Reproduce

1. Create a file with the above data source in (exactly as it is there)
2. terraform apply

Important Factoids

I can't specify wich Tag to use Backend vs Frontend vs FirstParty and by default the provider uses AzureFrontDoor.Backend tag.

References

This issue is very similar to #9156 but in this case I would like to data source Frontend tag

I believe this is due to how the function isServiceTagOf works. It is only validating the first element after the strings.Split(stName, ".").

I returned service tags are alphabetically sorted so the first match should be AzureFrontDoor.Backend and the list of CIDR Ranges will be returned here. This is why by default the returned IPs are from Backend service tag