Carrierwave and amazon s3 - ruby-on-rails-3

Question

I am using the carrierwave gem to manage file uploads in my rails 3 app, however, I am not able to connect to my amazon s3 bucket.
I have followed the instructions on the wiki yet they are not quite detailed enough, for example where do I store my s3 credentials?

Answer 1

Put something like this in an initializer.
CarrierWave.configure do |config|
config.storage = :fog
config.fog_directory = 'your_bucket'
config.fog_credentials = {
:provider => 'AWS',
:aws_access_key_id => 'your_access_key'
:aws_secret_access_key => 'your_secret_key',
:region => 'your_region'
}
end
You can store your credentials right in the file, if you want (and the code is private). Or from a separate file, or the database, up to you. The following would load a config file and allow different configurations based on the env.
# some module in your app
module YourApp::AWS
CONFIG_PATH = File.join(Rails.root, 'config/aws.yml')
def self.config
#_config ||= YAML.load_file(CONFIG_PATH)[Rails.env]
end
end
# config/aws.yml
base: &base
secret_access_key: "your_secret_access_key"
access_key_id: "your_access_key_id"
region: your_region
development:
<<: *base
bucket_name: your_dev_bucket
production:
<<: *base
bucket_name: your_production_bucket
# back in the initializer
config.fog_directory = YourApp::AWS.config['bucket_name']
# ...
config.fog_credentials = {
:provider => 'AWS',
:aws_access_key_id => YourApp::AWS.config['access_key_id'],
:aws_secret_access_key => YourApp::AWS.config['secret_access_key'],
:region => YourApp::AWS.config['region']
}

Answer 2

Check out this quick blog post I wrote about how to do it. Basically there are a few steps, each of which is pretty complicated:
Configuring API keys (allowing you to connect to the Amazon S3 API)
Connecting the API keys to your account (make sure to keep the credentials not checked into GitHub if you're using a public repo though)
Deploying the changes out.
Hope this helps!