Question

尝试使用Heroku安装S3时，我的应用程序崩溃了。

我想要做的是让Carrierwave上传文件到S3存储，并让rails从S3存储加载资产。我打开了我的S3帐户，在我的应用程序桶中，我上传了整个Assets文件夹，其中包含目录树屁股：

MyApp的
- 资产
  - 图像
  - Javascript角
  - 样式表

以下是我遵循的步骤，阅读指南Heroku: Using AWS S3 to Store Static Assets and File Uploads和Example of setting up S3 with Carrierwave：

在我的Gemfile中，我添加了

gem 'fog'

我运行了命令：

heroku config:add AWS_ACCESS_KEY_ID=XXXXXX AWS_SECRET_ACCESS_KEY=XXXXXX
heroku config:add S3_BUCKET_NAME=myapp
heroku config:add S3_REGION=ap-southeast-1 # I created my bucket in Singapore
heroku config:add S3_ASSET_URL=https://s3-ap-southeast-1.amazonaws.com/myapp/assets_%24folder%24

然后运行bundle install

然后我创建了config / initializers / carrierwave.rb

# config/initializers/carrierwave.rb
CarrierWave.configure do |config|
  config.fog_credentials = {
    # Configuration for Amazon S3 should be made available through an Environment variable.
    # For local installations, export the env variable through the shell OR
    # if using Passenger, set an Apache environment variable.
    #
    # In Heroku, follow http://devcenter.heroku.com/articles/config-vars
    #
    # $ heroku config:add S3_KEY=your_s3_access_key S3_SECRET=your_s3_secret S3_REGION=eu-west-1 S3_ASSET_URL=http://assets.example.com/ S3_BUCKET_NAME=s3_bucket/folder
    # Configuration for Amazon S3
    :provider => 'AWS',
    :aws_access_key_id => ENV['AWS_ACCESS_KEY_ID'],
    :aws_secret_access_key => ENV['AWS_SECRET_ACCESS_KEY'],
    :region => ENV['S3_REGION']
  }

  # For testing, upload files to local `tmp` folder.
  if Rails.env.test? || Rails.env.cucumber?
    config.storage = :file
    config.enable_processing = false
    config.root = "#{Rails.root}/tmp"
  else
    config.storage = :fog
  end

  config.cache_dir = "#{Rails.root}/tmp/uploads" # To let CarrierWave work on heroku
  config.fog_directory = ENV['S3_BUCKET_NAME']
  config.s3_access_policy = :public_read # Generate http:// urls. Defaults to :authenticated_read (https://)
  config.fog_host = "#{ENV['S3_ASSET_URL']}/#{ENV['S3_BUCKET_NAME']}"

end

之后我更新了我的git并推送了heroku：

git add .
git commit -m "added S3 configs with fog"
git push heroku master

当我使用Heroku应用程序时，我意识到出现错误，我检查了我的日志，出现以下错误：

...
2013-01-20T11:00:17+00:00 heroku[web.1]: Process exited with status 1
2013-01-20T11:00:17+00:00 heroku[web.1]: State changed from starting to crashed
2013-01-20T11:00:17+00:00 heroku[web.1]: State changed from crashed to starting
...
2013-01-20T11:00:52+00:00 app[web.1]: /app/config/initializers/carrierwave.rb:29:in `block in <top (required)>': undefined method `s3_access_policy=' for CarrierWave::Uploader::Base:Class (NoMethodError)
...
2013-01-20T11:00:53+00:00 heroku[web.1]: Process exited with status 1
2013-01-20T11:00:53+00:00 heroku[web.1]: State changed from starting to crashed
2013-01-20T11:04:52+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/ host=myapp.herokuapp.com fwd=xxx.xxx.xx.x dyno= queue= wait= connect= service= status=503 bytes=
2013-01-20T11:04:54+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=myapp.herokuapp.com fwd=xxx.xxx.xx.x dyno= queue= wait= connect= service= status=503 bytes=
2013-01-20T11:04:55+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=myapp.herokuapp.com fwd=xxx.xxx.xx.x dyno= queue= wait= connect= service= status=503 bytes=

我还试图运行heroku run rake db:migrate

并收到错误：

rake aborted!
undefined method `s3_access_policy=' for CarrierWave::Uploader::Base:Class

另外，在我的观点中，我应该为静态资产添加什么URL？

感谢您提出任何明智的建议

的Aurelien

Answer 1

以下是我解决问题的方法：

我评论了方法：config.s3_access_policy和config.fog_host并且它有效。这是我的最终初始化程序，它具有额外的条件检查，可以在基于Rails环境上传时使用雾化rails文件系统。谢谢FrontierPsycho，你是对的，凭证是最低的预请求。

# config/initializers/carrierwave.rb
CarrierWave.configure do |config|
  config.fog_credentials = {
    # Configuration for Amazon S3 should be made available through an Environment variable.
    # For local installations, export the env variable through the shell OR
    # if using Passenger, set an Apache environment variable.
    #
    # In Heroku, follow http://devcenter.heroku.com/articles/config-vars
    #
    # $ heroku config:add S3_KEY=your_s3_access_key S3_SECRET=your_s3_secret S3_REGION=eu-west-1 S3_ASSET_URL=http://assets.example.com/ S3_BUCKET_NAME=s3_bucket/folder
    # Configuration for Amazon S3
    :provider => 'AWS',
    :aws_access_key_id => ENV['AWS_ACCESS_KEY_ID'],
    :aws_secret_access_key => ENV['AWS_SECRET_ACCESS_KEY'],
    :region => ENV['S3_REGION']
  }

  # For testing, upload files to local `tmp` folder.
  if Rails.env.test? || Rails.env.cucumber?
    config.storage = :file
    config.enable_processing = false
    config.root = "#{Rails.root}/tmp"

  elsif Rails.env.development?
    config.storage = :file
  else
    config.storage = :fog
  end

  config.cache_dir = "#{Rails.root}/tmp/uploads" # To let CarrierWave work on heroku
  config.fog_directory = ENV['S3_BUCKET_NAME']
  # config.s3_access_policy = :public_read # Generate http:// urls. Defaults to :authenticated_read (https://)
  # config.fog_host = "#{ENV['S3_ASSET_URL']}/#{ENV['S3_BUCKET_NAME']}"

end

Answer 2

我不确定这一点，但我似乎遵循了与你相同的指南，而且它必须已经过时了。 CarrierWave Uploader API似乎已经改变。现在，上传的图像默认是公共的，您可以通过config.fog_public配置选项进行更改。

查看here和here了解详情。

我最终只得到了：

...
:provider              => 'AWS',
:aws_access_key_id     => ENV['S3_KEY'],
:aws_secret_access_key => ENV['S3_SECRET'],
:region                => ENV['S3_REGION']
...

在我的雾初始化器中。不需要更多。

Heroku AWS3 CarrierWave和rails问题

2 个答案: