config/initializers/carrierwave.rb


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CarrierWave::SanitizedFile.sanitize_regexp = /[^[:word:]\.\-\+]/

aws_file = Rails.root.join('config', 'aws.yml')

if File.exists?(aws_file)
  AWS_CONFIG = YAML.load(File.read(aws_file))[Rails.env]

  CarrierWave.configure do |config|
    config.fog_credentials = {
      provider: 'AWS',                                        # required
      aws_access_key_id: AWS_CONFIG['access_key_id'],         # required
      aws_secret_access_key: AWS_CONFIG['secret_access_key'], # required
      region: AWS_CONFIG['region'],                           # optional, defaults to 'us-east-1'
    }
    config.fog_directory  = AWS_CONFIG['bucket']                    # required
    config.fog_public     = false                                   # optional, defaults to true
    config.fog_attributes = {'Cache-Control'=>'max-age=315576000'}  # optional, defaults to {}
    config.fog_authenticated_url_expiration = 1 << 30               # optional time (in seconds) that authenticated urls will be valid.
                                                                    # when fog_public is false and provider is AWS or Google, defaults to 600
  end
end