added opensourcepos and changed cron bkp time

roles/borgbackup/tasks/main.yml

@@ -52,7 +52,7 @@
     user: "{{ system_user_name }}"
     name: "borgbackup the docker dir to nfs share"
     minute: "30"
-    hour: "4"
+    hour: "2"
     job: "sudo /usr/local/bin/backup_to_nfs.sh > /dev/null 2>&1"
   notify: Restart cron
   when: backup_via_nfs == true