如何为Hartl的Rails教程授予AWS用户权限

Alek 发表于 Dev

亚历克

我不知道如何（或在何处）从AWS向用户授予读写权限，以便用户可以在生产环境中的sample_app上发布图片。这是第11章的最后一项任务，本教程未涵盖，我也找不到任何解决方案。

这是carrier_wave.rb文件：

if Rails.env.production?
  CarrierWave.configure do |config|
    config.fog_credentials = {
      # Configuration for Amazon S3
      :provider              => 'AWS',
      :aws_access_key_id     => ENV['lalala'],
      :aws_secret_access_key => ENV['oloalle']
    }
    config.fog_directory     =  ENV['name of bucket']
  end
end

这是教程中的过程：1）创建AWS IAM用户并记录访问和密钥-完成

2）创建S3存储桶-完成

3）向上一步中创建的用户授予读写权限-如何操作？？？

4）然后我运行以下三个命令：

$ heroku config:set S3_ACCESS_KEY=lalala
$ heroku config:set S3_SECRET_KEY=oloalle
$ heroku config:set S3_BUCKET=name of bucket

5）推送到git和heroku-完成

6）heroku pg:reset DATABASE-完成

7）heroku run rake db:migrate，在这里我收到此消息：

Running `rake db:migrate` attached to terminal... up, run.7906
rake aborted!
ArgumentError: Missing required arguments: aws_access_key_id, aws_secret_access_key
/app/vendor/bundle/ruby/2.0.0/gems/fog-core-1.28.0/lib/fog/core/service.rb:244:in `validate_options'
/app/vendor/bundle/ruby/2.0.0/gems/fog-core-1.28.0/lib/fog/core/service.rb:268:in `handle_settings'
/app/vendor/bundle/ruby/2.0.0/gems/fog-core-1.28.0/lib/fog/core/service.rb:98:in `new'
/app/vendor/bundle/ruby/2.0.0/gems/fog-core-1.28.0/lib/fog/storage.rb:25:in `new'
/app/vendor/bundle/ruby/2.0.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/configuration.rb:83:in `eager_load_fog'
/app/vendor/bundle/ruby/2.0.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/configuration.rb:96:in `fog_credentials='
/app/config/initializers/carrier_wave.rb:3:in `block in <top (required)>'
/app/vendor/bundle/ruby/2.0.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/configuration.rb:118:in `configure'
/app/vendor/bundle/ruby/2.0.0/gems/carrierwave-0.10.0/lib/carrierwave.rb:14:in `configure'
/app/config/initializers/carrier_wave.rb:2:in `<top (required)>'
/app/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in `load'
/app/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in `block in load'
/app/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:240:in `load_dependency'
/app/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in `load'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/engine.rb:652:in `block in load_config_initializer'
/app/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.0/lib/active_support/notifications.rb:166:in `instrument'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/engine.rb:651:in `load_config_initializer'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/engine.rb:616:in `block (2 levels) in <class:Engine>'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/engine.rb:615:in `each'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/engine.rb:615:in `block in <class:Engine>'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:30:in `instance_exec'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:30:in `run'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:55:in `block in run_initializers'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:44:in `each'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:44:in `tsort_each_child'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:54:in `run_initializers'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/application.rb:352:in `initialize!'
/app/config/environment.rb:5:in `<top (required)>'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/application.rb:328:in `require'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/application.rb:328:in `require_environment!'
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/application.rb:443:in `block in run_tasks_blocks'
Tasks: TOP => db:migrate => environment
(See full trace by running task with --trace)

亚历克

对于以后的其他人来说，这个答案对我很有帮助。

转到Heroku，在您的应用程序上，转到设置，点击Reveal Config Vars。

单击右侧的“编辑”，然后在其中输入您的秘密：

S3_BUCKET: name of your bucket goes here
S3_ACCESS_KEY: xxxxx
S3_SECRET_KEY: xxxx

在config / initializers / carrierwave.rb上或您要输入密码的任何地方，都应具有：

CarrierWave.configure do |config|
  config.root = Rails.root.join('tmp') # adding these...
  config.cache_dir = 'carrierwave' # ...two lines

  config.fog_credentials = {
    :provider               => 'AWS',                        # required
    :s3_access_key_id      => ENV['S3_ACCESS_KEY'],                        # required
    :s3_secret_access_key  => ENV['S3_SECRET_KEY'],                     # required
    :region                 => 'eu-west-1',                  # optional, defaults to 'us-east-1'
    :host                   => 's3.example.com',             # optional, defaults to nil
    :endpoint               => 'https://s3.example.com:8080' # optional, defaults to nil
  }
  config.fog_directory  = ENV['S3_Bucket']                             # required
  config.fog_public     = false                                   # optional, defaults to true
  config.fog_attributes = {'Cache-Control'=>'max-age=315576000'}  # optional, defaults to {}
end