Updates for better usability

roles/rear_backup/tasks/archive_backup_log.yml

@@ -8,7 +8,13 @@
   when:
     - rear_backup_log_stat['stat']['exists']
   block:
-    - name: Copy ReaR log file to backup location
+    - name: Validate ReaR backup completion
+      ansible.builtin.command:
+        cmd: "grep 'Finished running mkbackup workflow' /var/log/rear/rear-{{ ansible_hostname }}.log"
+      register: rear_backup_validate
+      failed_when: rear_backup_validate['rc'] not in [0]
+
+    - name: Backup ReaR log file
       ansible.builtin.copy:
         src: "/var/log/rear/rear-{{ ansible_hostname }}.log"
         dest: "/var/log/rear-{{ ansible_hostname }}-{{ '%Y-%m-%d' | strftime(rear_backup_log_stat['stat']['mtime']) }}.log"