Heroku + Rails4.2：Cloudfront设置 [英] Heroku + Rails4.2 : Cloudfront setup

问题描述

我正在尝试为我的heroku应用程序设置Cloudfront。

I am trying to setup Cloudfront for my heroku app. The documentation seems to be lacking to stand independently.

Here are the steps I followed:

 1. Setup Cloudfront in AWS console
 2. Added cloudfront domain name to production.rb `config.action_controller.asset_host = 'XXXX.cloudfront.net'`
 3. Set `config.assets.compile = true` in production.rb
 4. Verified AWS_SECRET_ACCESS_KEY is correct in heroku config
 5. I have added `gem 'rails_12factor', group: :production`

None of assets load anymore. Any step I am missing in the setup?

---

Update1:

In the chrome debugger the asset is correctly requested from cloudfront from this url: http://XXXXX.cloudfront.net/assets/application-22c7c249df1a24541d86603b0715eefe.css

However in the request header see a Status Code:302 Moved Temporarily. I am wondering if I have a redirect loop and how I can debug it.

Update2

Thanks everyone for the suggestions. Some more info:

1. When I try to download the asset from my app, I get a redirect to home page on browser but using curl I am able to get the asset. ex: curl 'http: //www.myapp.com/assets/application-c9a778bb55ad4152d956fd34fe6f7839.css'
2. The app doesnt use SSL. However I have still set Origin Protocol Policy to Match Viewer as per @Omar's suggestions
3. I tried to download the asset from my app on browser and am able to access the assets. ex: 'http: //www.myapp.com/assets/application-c9a778bb55ad4152d956fd34fe6f7839.css' However trying to access the assets directly on cloudfront (d1ax5oefcdtdki.cloudfront.net/assets/application-c9a778bb55ad4152d956fd34fe6f7839.css) redirects it to myapp.com
4. Screenshots for cloudfront DS:

https://www.dropbox.com/s/bkg480d4it6zl2r/Screenshot%202015-12-06%2014.01.28.png?dl=0

http://glui.me/?i=7ah73hffrhvmpt7/2015-12-06_at_2.02_PM.png/

https://www.dropbox.com/s/dd4wwgm3md8w7qn/Screenshot%202015-12-06%2014.05.20.png?dl=0

解决方案

For anyone else having issues debugging cloudfront.

The problem was Cloudfront had cached redirects (prob bec of wrong setup). After invalidating the cache I was able to force CF to fetch assets from my app and serve them.

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