nowa/carrierwave-upyun — Issue #4: 如何实现多个upyun的帐号配置？
Author: fancyoung
Created: 2012-02-21 16:12:33+00:00
State: open

一个帐号时直接在`config/initializers/carrierwave.rb` 里配置即可
```
CarrierWave.configure do |config|
config.storage = :upyun
config.upyun_username = ENV['UPYUN_USERNAME']
config.upyun_password = ENV['UPYUN_PASSWORD']
config.upyun_bucket = ENV['UPYUN_BUCKET']
config.upyun_bucket_domain = ENV['UPYUN_BUCKET_DOMAIN']
end
```

可是在实际中需要多个帐号，比如：头像上传、图片上传、文件上传等，
因为后期所做处理不同，对应帐号及bucket都不同。
请问该如何配置？