Rails 3.2 Asset Pipeline with Thin and Apache, not finding assets

Question

My question is similar to this one Rails 3.2 Asset Pipeline with Passenger Endless Errors except that when I try to actually go to

<link href="/assets/application-eed7996ee9017637f923133371ab3e92.css" media="all" rel="stylesheet" type="text/css" />

I get a 404. Here's the thing I don't understand. It is looking in /assets/, but when I look at the code that was deployed, the assets are only in /public/assets, which is actually a symlink to /var/www/myapp/shared/assets. So what in the world is responsible for telling the app that looking in /assets will produce correct results??

I am using Rails 3.2.0, ruby-1.9.3-p125, deploying to Ubuntu, Apache, and Thin.

I should clarify: My assets are indeed deployed to the server. Everything works perfectly fine until they need to be served, in which case production.log tells me it's looking for them in /assets/application-eed7996ee9017637f923133371ab3e92.css, which 404's.

For every request my thin.log says

cache: [GET /] miss

and production.log says

ActionController::RoutingError (No route matches [GET] "/assets/application-abecf2e096af9ee80697fd49e79a55e7.js"):

UPDATE @Brandan thanks for the help. My assets are indeed in RAILS_ROOT/public/assets. I put this in my Apache vhost file:

DocumentRoot /var/rails/myappname/current/public

RewriteEngine On
XSendFile On
XSendFilePath /var/rails/myappname #not even sure if this line is needed

<LocationMatch "^/assets/.*$">
    Header unset ETag
    FileETag None
    ExpiresActive On
    ExpiresDefault "access plus 1 year"
</LocationMatch>

My RAILS_ROOT/config/environments/production.rb settings:

config.cache_classes = true
config.consider_all_requests_local = false
config.action_controller.perform_caching = true
config.serve_static_assets = false
config.assets.compress = true
config.assets.compile = false
config.assets.digest = true
config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache

Answer 1

Delete the following lines from your Apache configuration.

ProxyPass / balancer://thinservers/
ProxyPassReverse / balancer://thinservers/

The answer came from In Rails, should I enable serve_static_assets?.