This is a short example on how to create a transparent authentication proxy to a private s3 bucket.

The main feature used is the set-misc-module's set_hmac_sha1 and set_encode_base64 directives. Take a look at the example config file template in nginx/nginx.conf.in.

nginx module to proxy to authenticated AWS services

Ceph is an open source distributed file system capable of managing many petabytes of storage with ease.

delete-s3-bucket.pl

Walrus is a storage service included with Eucalyptus that is interface compatible with Amazon's S3. Walrus allows users to store persistent data, organized as buckets and objects (see Amazon's S3 Getting Started Guide for more information). Walrus system options can be modified via the administrator web interface.

A multithreaded Ruby script to quickly delete a very large Amazon S3 bucket

A script to query the Amazon Web Services (S3/EC2/etc) usage reports programmatically

The module queries MogileFS tracker specified by mogilefs_tracker directive and uses first path returned by tracker to fetch requested file.

Generating a signature using client-side JavaScript?

Sounds nice. "one API call gets you going. You store the data you want to distribute in an Amazon S3 bucket and you use this API call to register this bucket with the content distribution service. The registration will provide you with a new domain name that you can use in url's to access the data through this service with HTTP. When your customer accesses your content through your new url the data it refers to will be delivered through a network of edge servers."

REST Authentication Example 3: Query String Authentication Example