Seperate 'nis' and 'samba'.

roles/common/tasks/main.yml

@@ -25,16 +25,26 @@
   tags:
     - nis-install
 
-# tags supported inside nis_samba_user.yml:
+# tags supported inside nis_user.yml:
 #
-#    samba-user
 #    nis-user
 #    system-user
-- import_tasks: nis_samba_user.yml
+- import_tasks: nis_user.yml
   when: "groups['nis_server']|string is search(inventory_hostname)"
+  tags:
+    - nis-user
+
+# tags supported inside samba_user.yml:
+#
+#    samba-user
+- import_tasks: samba_user.yml
+  when: "groups['samba_server']|string is search(inventory_hostname)"
   tags:
     - nis-samba-user
 
+# tags supported user-systemfiles.yml:
+
+#    profile
 - import_tasks: user-systemfiles.yml
   when: "groups['nis_server']|string is search(inventory_hostname)"
   tags: