I am attempting to get a Rails 4 application running with RAILS_ENV=production.
My objective is to precompile assets and use a CDN to serve them quickly.
What I have done so far
production.rb
config.serve_static_assets = false
config.action_controller.asset_host = "http://mycdn.cloudfront.net"
config.assets.js_compressor = :uglifier
config.assets.compile = false
Precompile step that runs correctly during opsworks deploy
"/usr/local/bin/bundle exec rake assets:precompile"
Output From Precompile
/srv/www/myapp/current/public/assets/$ ls
application-<digest>.css
application-<digest>.js
... other images, etc...
Using rails helper tags for .js and .css in /application.html.slim
= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true
= javascript_include_tag 'application', 'data-turbolinks-track' => true
= favicon_link_tag 'favicon.png'
What did I expect
On page load I would see things like (expected digest in url):
<link data-turbolinks-track="true" href="http://mycdn.cloudfront.net/stylesheets/application-<digest>.css" media="all" rel="stylesheet" />
What actually happens
On page load I see things like (NO DIGEST in url!):
The bad news is they are missing, since application.css doesnt exist anywhere in my app, the CDN cant cache it, naturally.
<link data-turbolinks-track="true" href="http://mycdn.cloudfront.net/stylesheets/application.css" media="all" rel="stylesheet" />
Any help would be much appreciated.
Random stats:
- Rails 4.1.5
- Unicorn 4.8.1
- Opswork stack as my deploy target
- Cloudfront as my CDN
You need to add this to your production.rb file ( and any other environnent that you want to have digests in )
config.assets.digest = true