feat: empty file check to slapd backup

roles/backup-vm/templates/slapd_backup.sh

@@ -9,6 +9,14 @@ rsync -r --remove-source-files sheppy@192.168.122.112:$DIR /home/sheppy
 
 rsync --delete --rsh="/usr/bin/sshpass -p HISTORY_PURGED_SECRET ssh -p23" -r slapd_backup/* u244665-sub2@u244665.your-storagebox.de:./slapd_backup/
 
+for file in "$DIR"/*; do
+  # Check if the file is empty
+  if [ ! -s "$file" ]; then
+    echo "Empty file found: $file"
+    exit 1
+  fi
+done
+
 curl -H "Content-Type: application/json" \
      -X POST https://async-icinga.atlantishq.de/report \
      -d '{ "service" : "slapd_backup", "token" : "HISTORY_PURGED_SECRET", "status" : "OK", "info" : "" }'