Case sensitive bug with "azurerm_firewall" firewall_policy_id

[joakimlemb]

Is there an existing issue for this?

• I have searched the existing issues

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Terraform Version

v1.4.2

AzureRM Provider Version

3.81.0

Affected Resource(s)/Data Source(s)

azurerm_firewall

Terraform Configuration Files

resource "azurerm_firewall" "firewall" {
  name                = "${local.prefix-hub}-afw"
  location            = local.location
  resource_group_name = local.rgname
  sku_name            = "AZFW_VNet"
  sku_tier            = "Standard"
  threat_intel_mode   = "Alert"

  firewall_policy_id = azurerm_firewall_policy.policy1.id

  ...

}

Debug Output/Panic Output

# azurerm_firewall.firewall will be updated in-place
  ~ resource "azurerm_firewall" "firewall" {
      ~ firewall_policy_id  = "/subscriptions/REDACTED/resourcegroups/REDACTED/providers/Microsoft.Network/firewallPolicies/policy1" -> "/subscriptions/REDACTED/resourceGroups/REDACTED/providers/Microsoft.Network/firewallPolicies/policy1"
        id                  = "/subscriptions/REDACTED/resourceGroups/REDACTED/providers/Microsoft.Network/azureFirewalls/REDACTED"
		....
    }

Plan: 0 to add, 1 to change, 0 to destroy.

Expected Behaviour

Nothing, it should match existing infrastructure if it followed Microsofts documentation regarding Azure resource id's: https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/resource-name-rules
"Always perform a case-insensitive comparison of names."

Actual Behaviour

Case mismatch with "resourcegroups" vs "resourceGroups" for firewall_policy_id.

Steps to Reproduce

No response

Important Factoids

No response

References

From Microsoft documentation:
Resource and resource group names are case-insensitive unless specifically noted in the valid characters column.

When using various APIs to retrieve the name for a resource or resource group, the returned value may have different casing than what you originally specified for the name. The returned value may even display different case values than what is listed in the valid characters table.

Always perform a case-insensitive comparison of names.
ref: https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/resource-name-rules

Similar issue:
#17090

[github-actions]

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