update db-backup.sh

script/docker/db-backup.sh

@@ -12,7 +12,7 @@ find $data_dir -mtime +14 -name 'bak_*.sql' -exec rm -rf {} \;
 docker exec -i mongodb mongodump -u${name} -p${name}1415926 -d ${name} --authenticationDatabase admin --archive=/data/backup/`date +%Y-%m-%d_%H:%M:%S`.bak
 
 # 删除14天以前的备份
-find ${pwd}/mongodb/backup/ -mtime +14 -name 'bak_*.sql' -exec rm -rf {} \;
+find ${pwd}/mongodb/backup/ -mtime +14 -name '*.bak' -exec rm -rf {} \;
 
 # 创建定时任务
 # crontab -e