Posted January 29, 2016 in Code 5 minutes

Setup Trouble with CarrierWave and Fog

Today I was configuring a new install of CarrierWave to use S3 storage via the Fog-AWS gem and hit a snag. After following the docs in the Carrierwave readme, I kept getting no method errors on the fog_provider portion of the config.

Here’s the trick, RubyGems links to the 0.10.0 version while GitHub shows master. Instead of referring to the master docs, be sure you look over the 0.10.0 readme:

CarrierWave 0.10.0
Fog >= 1.3.1

CarrierWave.configure do |config|
  config.fog_credentials = {
    :provider               => 'AWS',                        # required
    :aws_access_key_id      => 'xxx',                        # required
    :aws_secret_access_key  => 'yyy',                        # required
    :region                 => 'eu-west-1',                  # optional, defaults to 'us-east-1'
    :host                   => '',             # optional, defaults to nil
    :endpoint               => '' # optional, defaults to nil
  config.fog_directory  = 'name_of_directory'                # required
  config.fog_public     = false                              # optional, defaults to true
  config.fog_attributes = {'Cache-Control'=>'max-age=315576000'}  # optional, defaults to {}

The moral if the story friends is to always double check your version and refer to the correct docs!