use variable for domain admin username

ansible/roles/win_domain_controller/tasks/users.yml

@@ -17,7 +17,7 @@
 
     - name: Create 'Admin' user 
       community.windows.win_domain_user:
-        name: admin
+        name: "{{ domain_admin_username }}"
         password: "{{ domain_admin_password }}"
         state: present
         password_never_expires: yes

ansible/vars/common.yml

@@ -22,3 +22,5 @@ standard_vms:
   - { name: "{{ os_project }}-{{ win_project }}-fs02", security_group: "file_server", meta_name: fs02 }
   - { name: "{{ os_project }}-{{ win_project }}-wsus", security_group: "wsus_server", meta_name: wsus }
   - { name: "{{ os_project }}-{{ win_project }}-choc", security_group: "chocolatey_server", meta_name: choc }
+
+domain_admin_username: space-admin