Full list of changes for migrating Carrierwave from file to fog

April 30, 2019 #technical

Notes from when we switched from file to object storage:

In the uploaders storage :file should be changed to storage fog. Set development to file:

if Rails.env.development?
  storage :file
else
  storage :fog
end

Add the fog config to an initializer:

CarrierWave.configure do |config|
  config.fog_directory = ENV['FOG_DIRECTORY']
  config.asset_host = ENV['FOG_ASSET_HOST']

  config.fog_credentials = {
    provider:               'AWS',
    aws_access_key_id:      ENV['FOG_ASSET_KEY'],
    aws_secret_access_key:  ENV['FOG_ASSET_SECRET'],
    region:                 ENV['FOG_ASSET_REGION'],
    endpoint:               ENV['FOG_ASSET_ENDPOINT']
  }
  config.fog_attributes = { 'Cache-Control' => 'max-age=315576000' }
end

Any place where file.file is used, for example if there was a send_data should be changed to open(@model.image_url, 'rb') do |file|
file.original_filename should be changed to file.filename

Ognjen Regoje But you can call me Oggy

Full list of changes for migrating Carrierwave from file to fog

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Ognjen Regoje
But you can call me Oggy