remote_serve.rb

AWS::S3::Base.establish_connection!(
  :access_key_id     => ENV['AMAZON_ACCESS_KEY_ID'],
  :secret_access_key => ENV['AMAZON_SECRET_ACCESS_KEY']
)

def remote_serve(file_content, ext = "html", expires_in = 60 * 60 * 2 * 365)    
  # To generate a unique filename to avoid name colision
  filename = Digest::SHA1.hexdigest(file_content + Time.now.to_s) + "." + ext.to_s
  bucket_name = 'RemoteAccess'
  obj = AWS::S3::S3Object.store(filename, file_content, bucket_name)
  AWS::S3::S3Object.url_for(filename, bucket_name)
end