Files here were populated with content as described by Automate Unity Catalog setup using Terraform.
Update the resourceId for your Databricks service in auth.auto.tfvars.
The tutorial instructions say to specify your workspace id in metastore.auto.tfvars. This link will tell you how to learn your workspaceId. Note: specifying a non-default workspaceId (i.e., not "0") resulted in this error for me:
Error: Attribute must be a whole number, got 2.xxxxxxxxxxxxxxxe+15
│
│ with databricks_metastore_assignment.default_metastore,
│ on metastore.tf line 26, in resource "databricks_metastore_assignment" "default_metastore":
│ 26: workspace_id = var.default_metastore_workspace_id