Tweak backup to exempt nobackup, and added user/group cherry

roles/shell/tasks/users/cherry.yml

@@ -0,0 +1,16 @@
+---
+- name: add group cherry 
+  group:
+    name: cherry
+    system: yes
+    state: present
+
+- name: Add the user cherry
+  user:
+    name: cherry
+    system: yes
+    shell: /bin/false
+    groups: cherry
+    create_home: yes
+    home: /home/cherry
+    state: present