Enable terraform plan access via dynamic Terraform roles (cloudposse/terraform-aws-components#715)

Author: Nuru

src/README.md

@@ -106,8 +106,6 @@ components:
 | <a name="input_enabled"></a> [enabled](#input\_enabled) | Set to false to prevent the module from creating any resources | `bool` | `null` | no |
 | <a name="input_environment"></a> [environment](#input\_environment) | ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT' | `string` | `null` | no |
 | <a name="input_id_length_limit"></a> [id\_length\_limit](#input\_id\_length\_limit) | Limit `id` to this many characters (minimum 6).<br>Set to `0` for unlimited length.<br>Set to `null` for keep the existing setting, which defaults to `0`.<br>Does not affect `id_full`. | `number` | `null` | no |
-| <a name="input_import_profile_name"></a> [import\_profile\_name](#input\_import\_profile\_name) | AWS Profile name to use when importing a resource | `string` | `null` | no |
-| <a name="input_import_role_arn"></a> [import\_role\_arn](#input\_import\_role\_arn) | IAM Role ARN to use when importing a resource | `string` | `null` | no |
 | <a name="input_label_key_case"></a> [label\_key\_case](#input\_label\_key\_case) | Controls the letter case of the `tags` keys (label names) for tags generated by this module.<br>Does not affect keys of tags passed in via the `tags` input.<br>Possible values: `lower`, `title`, `upper`.<br>Default value: `title`. | `string` | `null` | no |
 | <a name="input_label_order"></a> [label\_order](#input\_label\_order) | The order in which the labels (ID elements) appear in the `id`.<br>Defaults to ["namespace", "environment", "stage", "name", "attributes"].<br>You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present. | `list(string)` | `null` | no |
 | <a name="input_label_value_case"></a> [label\_value\_case](#input\_label\_value\_case) | Controls the letter case of ID elements (labels) as included in `id`,<br>set as tag values, and output by this module individually.<br>Does not affect values of tags passed in via the `tags` input.<br>Possible values: `lower`, `title`, `upper` and `none` (no transformation).<br>Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs.<br>Default value: `lower`. | `string` | `null` | no |

src/providers.tf

@@ -1,12 +1,14 @@
 provider "aws" {
   region = var.region
 
-  profile = module.iam_roles.profiles_enabled ? coalesce(var.import_profile_name, module.iam_roles.terraform_profile_name) : null
+  # Profile is deprecated in favor of terraform_role_arn. When profiles are not in use, terraform_profile_name is null.
+  profile = module.iam_roles.terraform_profile_name
 
   dynamic "assume_role" {
-    for_each = module.iam_roles.profiles_enabled ? [] : ["role"]
+    # module.iam_roles.terraform_role_arn may be null, in which case do not assume a role.
+    for_each = compact([module.iam_roles.terraform_role_arn])
     content {
-      role_arn = coalesce(var.import_role_arn, module.iam_roles.terraform_role_arn)
+      role_arn = module.iam_roles.terraform_role_arn
     }
   }
 }
@@ -15,15 +17,3 @@ module "iam_roles" {
   source  = "../account-map/modules/iam-roles"
   context = module.this.context
 }
-
-variable "import_profile_name" {
-  type        = string
-  default     = null
-  description = "AWS Profile name to use when importing a resource"
-}
-
-variable "import_role_arn" {
-  type        = string
-  default     = null
-  description = "IAM Role ARN to use when importing a resource"
-}