Renamed general and mode constants and implemented a check to verify that constants are just defined ones over the whole repository

roles/sys-bkp-docker-2-loc/tasks/01_core.yml

@@ -12,7 +12,7 @@
 
 - name: "reset (if enabled)"
   include_tasks: 03_reset.yml
-  when: mode_reset | bool
+  when: MODE_RESET | bool
 
 - name: configure sys-bkp-docker-2-loc-everything.infinito.service
   template:

roles/sys-bkp-docker-2-loc/tasks/04_seed-database-to-backup.yml

@@ -11,7 +11,7 @@
       database_host: "{{ database_host | default('undefined') }}"
       database_username: "{{ database_username | default('undefined') }}"
       database_password: "{{ database_password | default('undefined') }}"
-  when: enable_debug | bool
+  when: MODE_DEBUG | bool
 
 - name: "fail if not all required database variables are defined"
   fail: