carrierwave_with_cloud_front.rb

#Instructions

#Add the gems to your Gemfile:

gem 'fog'
gem 'carrierwave'
gem 'rmagick' # optional, for image resizing support

# Add the file './config/initializers/carrierwave.rb' for your CarrierWave configuration:

# ./config/initializers/carrierwave.rb

CarrierWave.configure do |config|
  config.fog_credentials = {
    :provider => "AWS",
    :aws_access_key_id => ENV['AWS_ACCESS_KEY_ID'],
    :aws_secret_access_key => ENV['AWS_SECRET_ACCESS_KEY'],
  }
  config.fog_directory = ENV['S3_BUCKET']

  # use only one of the following 2 settings
  config.fog_host = "http://#{ENV['S3_BUCKET']}.s3.amazonaws.com" # for no cloudfront
  config.fog_host = ENV['S3_CDN'] # for cloudfront

end

# Add your environment variables:

$ heroku config:add AWS_ACCESS_KEY_ID=[your_access_key_here]
$ heroku config:add AWS_SECRET_ACCESS_KEY=[your_access_key_here]
$ heroku config:add S3_BUCKET=[your_s3_bucket]
$ heroku config:add S3_CDN=[your_cloudfront_url] # optional for cloudfront support