云信达ecBackup连接阿里云
通过s3-gateway搭建的s3阿里云，基础访问地址写endpoint addr，Region为空。
阿里公有云，配置如下：
正常日志如下：
11-27 16:07:36 INFO 79a7d1175736 s3-client - s3 client url :http://oss-cn-beijing.aliyuncs.com:80 11-27 16:07:36 INFO 79a7d1175736 s3-client - finding bucket ucc2025, kwargs {'Bucket': 'ucc2025', 'MaxKeys': 1, 'Delimiter': '/'}, by s3 api ver v2 11-27 16:07:36 INFO 79a7d1175736 s3-client - all valid bucket by list_objects for url http://oss-cn-beijing.aliyuncs.com:80 , found bucket ucc2025 11-27 16:07:36 INFO 79a7d1175736 s3-utils - s3 check bucket, find bucket ucc2025 success 11-27 16:07:36 INFO 79a7d1175736 db - refresh lease with ttl: 1800 lease id: 2207142486 11-27 16:07:36 INFO 79a7d1175736 db - put /resource-access-point/system/v1/675ce5854424d8cf520b3daefe55835