Frontdoor persistent diff

[VenelinMartinov]

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Terraform Version

1.8.2

AzureRM Provider Version

3.102.0

Affected Resource(s)/Data Source(s)

azurerm_frontdoor

Terraform Configuration Files

terraform {
  required_providers {
    azurerm = {
      source  = "hashicorp/azurerm"
      version = "3.102.0"
    }
  }
}

# Configure the Microsoft Azure Provider
provider "azurerm" {
  features {}
}

resource "azurerm_resource_group" "example" {
  name     = "resourceGroup"
  location = "West Europe"
}

resource "azurerm_frontdoor" "example" {
  name                = "example476"
  resource_group_name = azurerm_resource_group.example.name

  routing_rule {
    name               = "rule1"
    accepted_protocols = ["Http", "Https"]
    patterns_to_match  = ["/*"]
    frontend_endpoints = ["frontEndEndpoint1"]

    forwarding_configuration {
      forwarding_protocol = "MatchRequest"
      backend_pool_name   = "exampleBackendBing"
    }
  }

  backend_pool_load_balancing {
    name = "exampleLoadBalancingSettings1"
  }

  backend_pool_health_probe {
    name         = "exampleHealthProbeSetting1"
    protocol     = "Https"
    probe_method = "HEAD"
  }

  backend_pool {
    name = "exampleBackendBing"
    backend {
      host_header = "www.bing.com"
      address     = "www.bing.com"
      http_port   = 80
      https_port  = 443
    }

    load_balancing_name = "exampleLoadBalancingSettings1"
    health_probe_name   = "exampleHealthProbeSetting1"
  }

  frontend_endpoint {
    name      = "frontEndEndpoint1"
    host_name = "example476.azurefd.net"
  }
}

Debug Output/Panic Output

https://gist.github.com/VenelinMartinov/e93307a9682d266b5a5e5e6c6f630355

Expected Behaviour

Upon running plan after apply, I expect there to be no diff in the resource.

Actual Behaviour

A diff is produced on backend_pool_settings and cache_query_parameters every time.

Should the property be Computed given that the provider is setting it?

terraform-provider-azurerm/internal/services/frontdoor/frontdoor_resource.go

Line 2072 in 0e9b08f

"backend_pool_settings": {

Steps to Reproduce

1. terraform apply
2. terraform plan

Important Factoids

No response

References

No response