Cloudfront + Carrierwave

Question

So this seems like it should be quite easy... everyone is saying just to use config.asset_host. When I set that though, all the links inside my app still point to S3.

CarrierWave.configure do |config|

  config.storage = :fog

  config.fog_credentials = {
    :provider              => 'AWS',
    :aws_access_key_id     => AWS_ACCESS_KEY_ID,
    :aws_secret_access_key => AWS_SECRET_ACCESS_KEY,
    :region                => 'us-east-1'
  }

  config.fog_authenticated_url_expiration = 3.hours

  config.asset_host     = "http://xyz123.cloudfront.net"
  config.fog_directory  = S3_BUCKET_NAME
  config.fog_public     = false
  config.fog_attributes = {
    'Cache-Control' => "max-age=#{1.year.to_i}"
  }
end

here is how I call my files...

image_tag book.attachments.first.filename.file.authenticated_url(:thumb175)

It looks to me like public_url prepends the proper host, but it takes 0 arguments... so how am I supposed to pass the proper response-content-disposition and response-content-type and the link expire time?

Answer 1

I think you found this for yourself, but public urls will not expire. If you want that you'll need to use authenticated urls. For public urls I think you can simply get the url and append whatever query params you would like, at least for now. If that works well for you, we can certainly see about patching things to do the right thing.