azurerm_function_app_function does not allow underscore in name but Azure does

[niven01]

Is there an existing issue for this?

• I have searched the existing issues

Community Note

• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request
• Please do not leave "+1" or "me too" comments, they generate extra noise for issue followers and do not help prioritize the request
• If you are interested in working on this issue or have submitted a pull request, please leave a comment

Terraform Version

1.5.0

AzureRM Provider Version

3.62.1

Affected Resource(s)/Data Source(s)

azurerm_function_app_function

Terraform Configuration Files

resource "azurerm_function_app_function" "my_function" {
  name            = "Funtion_name"
  config_json     = "{\"bindings\":[{\"authLevel\":\"function\",\"methods\":[\"get\"],\"name\":\"req\",\"type\":\"httpTrigger\"}],\"configurationSource\":\"attributes\",\"disabled\":false,\"entryPoint\":\"my.entrypoit.Function_name\",\"generatedBy\":\"Microsoft.NET.Sdk.Functions.Generator-4.1.1\",\"scriptFile\":\"../bin/ABC.APIs.PMIS.EMPX.dll\"}"
  function_app_id = "/subscriptions/xxxxxxx-xxxxxxx-xxxxxxxxx-xxxxxx/resourceGroups/my-resource-group/providers/Microsoft.Web/sites/myfunctionapp"

}

Debug Output/Panic Output

Error: "name" must start with a letter, may only contain alphanumeric characters and dashes and up to 128 characters in length

Expected Behaviour

I am importing an existing resource into Terraform. The name has been set in the portal with an underscore.

When running a Terraform Validate I'm expecting my code to pass with

Success! The configuration is valid.

Actual Behaviour

Error: "name" must start with a letter, may only contain alphanumeric characters and dashes and up to 128 characters in length
│
│ with azurerm_function_app_function.my_function,
│ on RG_abp-ais-pmis-empx-uks-rg01.tf line 73, in resource "azurerm_function_app_function" "my_function":
│ 73: name = "Function_name"

Steps to Reproduce

• Create code in Terraform for the existing resource
• run: terraform validate

Important Factoids

No response

References

No response

[xiaxyi]

Thanks @niven01 for raising this issue, the fix is included in the mentioned pr and you can track it for a progress.

[github-actions]

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 have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.