Add tag ad-auth to that role

ad-auth/tasks/main.yml

 ---
 # file: roles/ad-auth/tasks/main.yml
 
-- include: ldap.yml
+- import_tasks: ldap.yml
+  tags: ad-auth
 - meta: flush_handlers
-- include: kerberos.yml
+- import_tasks: kerberos.yml
+  tags: ad-auth
 - meta: flush_handlers
-- include: sssd.yml
+- import_tasks: sssd.yml
+  tags: ad-auth
 - meta: flush_handlers
-- include: pam.yml
+- import_tasks: pam.yml
+  tags: ad-auth
 - meta: flush_handlers
-- include: sudo.yml
+- import_tasks: sudo.yml
+  tags: ad-auth
 - meta: flush_handlers
 
 - name: ensure there is no local users group
@@ -17,3 +22,4 @@
   tags:
     - groups
     - config
+    - ad-auth