I currently have a production web site which hosts a large volume 50GB+ of images on s3. For my staging environment at first I was cloning the production bucket into a staging bucket but this has become too large to maintain.
The changes that occur on staging must continue to be isolated to the staging environment and not touch production.
What are the best options for redirecting missing staging assets to production? I have seen this article which is an example: http://containerdiv.wordpress.com/2009/05/01/safely-using-production-assets-in-staging/
This is rails + unicorn + nginx + S3.