[aws-databricks-unity-catalog] `databricks_default_namespace_setting` is a workspace-level resource but module requires account-level (MWS) provider only

[gham-khaled]

Module

modules/aws-databricks-unity-catalog Link

Summary

The aws-databricks-unity-catalog module contains a databricks_default_namespace_setting resource in main.tf:

  resource "databricks_default_namespace_setting" "this" {
    namespace {
      value = "main"
    }
  }

databricks_default_namespace_setting is a workspace-level resource — it must be applied via a provider pointed at a specific workspace host. However, the module is designed to be called with the account-level MWS provider pointed at https://accounts.cloud.databricks.com

  module "databricks_metastore" {
    source = "../../modules/aws-databricks-unity-catalog"

    providers = {
      databricks = databricks.mws  
    }
    ...
  }

When Terraform attempts to create databricks_default_namespace_setting using the MWS provider, it targets accounts.cloud.databricks.com instead of a workspace host, resulting in an API error at apply time.

Suggested Fix

1. databricks_default_namespace_setting is removed from this module entirely
2. A boolean variable (e.g. manage_default_namespace_setting = false) is added to allow callers to opt out, or
3. The module accepts an optional workspace-level provider alias and conditionally creates the resource only when it is supplied

Environment

• Terraform: >= 1.10.0
• Databricks provider: ~> 1.0
• AWS provider: ~> 5.0