[Feature] support deploy minio-s3-gateway

[aspirer]

我们需要你帮我们支持部署 minio-s3-gateway，相关文档请参考：

https://github.com/opencurve/curve-meetup-slides/pull/85

如果你有任何问题和疑问，都可以在该 issue 下面告诉我

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[peter5232]

这个issue指的是希望可以通过minio-s3-gateway去兼容多个对象存储系统吗

[aspirer]

这个issue指的是希望可以通过minio-s3-gateway去兼容多个对象存储系统吗

是通过s3-gateway提供s3协议，s3-gateway作为s3协议网关，使用curveadm部署在curve-fuse挂载点上，类似s3-gateway运行在本地文件系统上，这样用户上传下载curve-fuse上的文件就可以通过s3协议完成。完成了从posix到s3协议的转换。

当然这是第一步，第二步是修改minio-s3-gateway，并配合调用curvefs的sdk，不依赖curve-fuse挂载就可以支持s3协议。

[aspirer]

一种可能的实现方案：先用curveadm挂载一个curve-fuse目录，然后再用curveadm的playbook扩展能力，在挂载点上启动一个gateway，应该就可以实现了，这是一个初步方案，如果要考虑高可用，还需要部署两个同样的节点，并配置keepalived、haproxy等高可用组件服务来实现故障后的自动切换。

[e1ijah1]

I am a backend engineer at a tech company, working on machine learning systems. I am interested in C++ systems programming.

I chose this topic because I have a basic understanding of S3 and CurveFS, and I want to learn more about their design and implementation details.