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Carrierwave AWS Storage

Build Status Code Climate Gem Version Dependency Status

Use the officially supported AWS-SDK library for S3 storage rather than relying on fog. There are several things going for it:

  • Full featured, it supports more of the API than Fog
  • Significantly smaller footprint
  • Fewer dependencies
  • Clear documentation

Here is a simple comparison table [07/17/2013]

Library Disk Space Lines of Code Boot Time Runtime Deps Develop Deps
fog 28.0M 133469 0.693 9 11
aws-sdk 5.4M 90290 0.098 3 8

Installation

Add this line to your application's Gemfile:

gem 'carrierwave-aws'

Usage

Configure and use it just like you would Fog. The only notable difference is the use of aws_bucket instead of fog_directory, and aws_acl instead of fog_public.

CarrierWave.configure do |config|
  config.storage    = :aws
  config.aws_bucket = ENV['S3_BUCKET_NAME']
  config.aws_acl    = :public_read
  config.asset_host = 'http://example.com'
  config.aws_authenticated_url_expiration = 60 * 60 * 24 * 365

  config.aws_credentials = {
    access_key_id:     ENV['AWS_ACCESS_KEY_ID'],
    secret_access_key: ENV['AWS_SECRET_ACCESS_KEY']
  }
end

If you want to supply your own AWS configuration, put it inside config.aws_credentials like this:

config.aws_credentials = {
  access_key_id:     ENV['AWS_ACCESS_KEY_ID'],
  secret_access_key: ENV['AWS_SECRET_ACCESS_KEY'],
  config: AWS.config(my_aws_options)
}

AWS.config will return AWS::Core::Configuration object which is used through aws-sdk gem. Browse Amazon docs for additional info. For example, if you want to turn off SSL for your asset URLs, you could simply set AWS.config(use_ssl: false).

Contributing

In order to run the integration specs you will need to configure some environment variables. A sample file is provided as .env.sample. Copy it over and plug in the appropriate values.

cp .env.sample .env
  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request

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AWS-SDK storage adapter for CarrierWave

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