Add cdn

config/application.yml.example

@@ -29,6 +29,9 @@ SITE_YEAR: '© 2012 - 2016'
 # google analytics, blank it if you don't need
 GOOGLE: ''
 
+# CDN ( optional )
+CDN: ''
+
 # Email Setting, see more: /config/environments/production.rb
 MAIL_SERVER: ''
 DOMAIN_NAME: ''

config/environments/production.rb

@@ -55,7 +55,9 @@ WBlog::Application.configure do
   # config.cache_store = :mem_cache_store
 
   # Enable serving of images, stylesheets, and JavaScripts from an asset server.
-  # config.action_controller.asset_host = "http://assets.example.com"
+  if ENV['CDN'].present?
+    config.action_controller.asset_host = ENV['CDN']
+  end
 
   # Precompile additional assets.
   # application.js, application.css, and all non-JS/CSS in app/assets folder are already added.