cloud_front

https://github.com/nbibler/cloud_front

This library sets up your application to use the Amazon CloudFront CDN by modifying your Rails 3 asset_host to the host you specify. It also allows you to use your Rails 3 application directly as the origin server for CloudFront alleviating the need to upload your resources to Amazon S3. The included middleware manages recognizing and re-routing CloudFront-based requests to local assets.