Comment redundant role in bootstrap stage, align IAM.md files, improv…

…e IAM tool (#842)

* comment redundant role

* account for duplicate folder names

* update IAM.md files

fast/stages/00-bootstrap/IAM.md

@@ -6,13 +6,13 @@ Legend: <code>+</code> additive, <code>•</code> conditional.
 
 | members | roles |
 |---|---|
-|<b>GCP organization domain</b><br><small><i>domain</i></small>|[roles/browser](https://cloud.google.com/iam/docs/understanding-roles#browser) <br>[roles/resourcemanager.organizationViewer](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.organizationViewer) |
+|<b>GCP organization domain</b><br><small><i>domain</i></small>|[roles/browser](https://cloud.google.com/iam/docs/understanding-roles#browser) |
 |<b>gcp-billing-admins</b><br><small><i>group</i></small>|[roles/billing.admin](https://cloud.google.com/iam/docs/understanding-roles#billing.admin) <code>+</code><br>[roles/billing.costsManager](https://cloud.google.com/iam/docs/understanding-roles#billing.costsManager) <code>+</code>|
 |<b>gcp-network-admins</b><br><small><i>group</i></small>|[roles/cloudasset.owner](https://cloud.google.com/iam/docs/understanding-roles#cloudasset.owner) <br>[roles/cloudsupport.techSupportEditor](https://cloud.google.com/iam/docs/understanding-roles#cloudsupport.techSupportEditor) <br>[roles/compute.orgFirewallPolicyAdmin](https://cloud.google.com/iam/docs/understanding-roles#compute.orgFirewallPolicyAdmin) <code>+</code><br>[roles/compute.xpnAdmin](https://cloud.google.com/iam/docs/understanding-roles#compute.xpnAdmin) <code>+</code>|
 |<b>gcp-organization-admins</b><br><small><i>group</i></small>|[roles/cloudasset.owner](https://cloud.google.com/iam/docs/understanding-roles#cloudasset.owner) <br>[roles/cloudsupport.admin](https://cloud.google.com/iam/docs/understanding-roles#cloudsupport.admin) <br>[roles/compute.osAdminLogin](https://cloud.google.com/iam/docs/understanding-roles#compute.osAdminLogin) <br>[roles/compute.osLoginExternalUser](https://cloud.google.com/iam/docs/understanding-roles#compute.osLoginExternalUser) <br>[roles/owner](https://cloud.google.com/iam/docs/understanding-roles#owner) <br>[roles/resourcemanager.folderAdmin](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.folderAdmin) <br>[roles/resourcemanager.organizationAdmin](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.organizationAdmin) <br>[roles/resourcemanager.projectCreator](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.projectCreator) <br>[roles/billing.admin](https://cloud.google.com/iam/docs/understanding-roles#billing.admin) <code>+</code><br>[roles/billing.costsManager](https://cloud.google.com/iam/docs/understanding-roles#billing.costsManager) <code>+</code><br>[roles/orgpolicy.policyAdmin](https://cloud.google.com/iam/docs/understanding-roles#orgpolicy.policyAdmin) <code>+</code>|
 |<b>gcp-security-admins</b><br><small><i>group</i></small>|[roles/cloudasset.owner](https://cloud.google.com/iam/docs/understanding-roles#cloudasset.owner) <br>[roles/cloudsupport.techSupportEditor](https://cloud.google.com/iam/docs/understanding-roles#cloudsupport.techSupportEditor) <br>[roles/iam.securityReviewer](https://cloud.google.com/iam/docs/understanding-roles#iam.securityReviewer) <br>[roles/logging.admin](https://cloud.google.com/iam/docs/understanding-roles#logging.admin) <br>[roles/securitycenter.admin](https://cloud.google.com/iam/docs/understanding-roles#securitycenter.admin) <br>[roles/accesscontextmanager.policyAdmin](https://cloud.google.com/iam/docs/understanding-roles#accesscontextmanager.policyAdmin) <code>+</code><br>[roles/iam.organizationRoleAdmin](https://cloud.google.com/iam/docs/understanding-roles#iam.organizationRoleAdmin) <code>+</code><br>[roles/orgpolicy.policyAdmin](https://cloud.google.com/iam/docs/understanding-roles#orgpolicy.policyAdmin) <code>+</code>|
 |<b>gcp-support</b><br><small><i>group</i></small>|[roles/cloudsupport.techSupportEditor](https://cloud.google.com/iam/docs/understanding-roles#cloudsupport.techSupportEditor) <br>[roles/logging.viewer](https://cloud.google.com/iam/docs/understanding-roles#logging.viewer) <br>[roles/monitoring.viewer](https://cloud.google.com/iam/docs/understanding-roles#monitoring.viewer) |
-|<b>prod-bootstrap-0</b><br><small><i>serviceAccount</i></small>|[roles/logging.admin](https://cloud.google.com/iam/docs/understanding-roles#logging.admin) <br>[roles/resourcemanager.organizationAdmin](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.organizationAdmin) <br>[roles/resourcemanager.projectCreator](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.projectCreator) <br>[roles/billing.admin](https://cloud.google.com/iam/docs/understanding-roles#billing.admin) <code>+</code><br>[roles/billing.costsManager](https://cloud.google.com/iam/docs/understanding-roles#billing.costsManager) <code>+</code><br>[roles/iam.organizationRoleAdmin](https://cloud.google.com/iam/docs/understanding-roles#iam.organizationRoleAdmin) <code>+</code>|
+|<b>prod-bootstrap-0</b><br><small><i>serviceAccount</i></small>|[roles/logging.admin](https://cloud.google.com/iam/docs/understanding-roles#logging.admin) <br>[roles/resourcemanager.organizationAdmin](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.organizationAdmin) <br>[roles/resourcemanager.projectCreator](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.projectCreator) <br>[roles/resourcemanager.projectMover](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.projectMover) <br>[roles/billing.admin](https://cloud.google.com/iam/docs/understanding-roles#billing.admin) <code>+</code><br>[roles/billing.costsManager](https://cloud.google.com/iam/docs/understanding-roles#billing.costsManager) <code>+</code><br>[roles/iam.organizationRoleAdmin](https://cloud.google.com/iam/docs/understanding-roles#iam.organizationRoleAdmin) <code>+</code>|
 |<b>prod-resman-0</b><br><small><i>serviceAccount</i></small>|organizations/[org_id #0]/roles/organizationIamAdmin <code>•</code><br>[roles/resourcemanager.folderAdmin](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.folderAdmin) <br>[roles/resourcemanager.tagAdmin](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.tagAdmin) <br>[roles/resourcemanager.tagUser](https://cloud.google.com/iam/docs/understanding-roles#resourcemanager.tagUser) <br>[roles/billing.admin](https://cloud.google.com/iam/docs/understanding-roles#billing.admin) <code>+</code><br>[roles/billing.costsManager](https://cloud.google.com/iam/docs/understanding-roles#billing.costsManager) <code>+</code><br>[roles/orgpolicy.policyAdmin](https://cloud.google.com/iam/docs/understanding-roles#orgpolicy.policyAdmin) <code>+</code>|
 
 ## Project <i>prod-audit-logs-0</i>

fast/stages/00-bootstrap/organization.tf

@@ -34,9 +34,10 @@ locals {
       [module.automation-tf-bootstrap-sa.iam_email],
       local._iam_bootstrap_user
     )
-    "roles/resourcemanager.organizationViewer" = [
-      "domain:${var.organization.domain}"
-    ]
+    # the following is useful if roles/browser is not desirable
+    # "roles/resourcemanager.organizationViewer" = [
+    #   "domain:${var.organization.domain}"
+    # ]
     "roles/resourcemanager.projectCreator" = concat(
       [module.automation-tf-bootstrap-sa.iam_email],
       local._iam_bootstrap_user