config_initializers_carrierwave.rb

CarrierWave.configure do |config|
  config.fog_credentials = {
    provider:              'AWS',                        # required
    aws_access_key_id:     ENV["S3_KEY"],             # required
    aws_secret_access_key: ENV["S3_SECRET"],          # required
    region:                'us-west-1'      # optional, defaults to 'us-east-1'
    # host:             s3.example.com',             # optional, defaults to nil
    # endpoint:        'https://s3.example.com:8080' # optional, defaults to nil
  }
  config.fog_directory  = 'yakkedin-rooms'               # required
  # config.fog_public   = false                     # optional, defaults to true
  # the following is optional, defaults to {}
  config.fog_attributes = { 'Cache-Control' => "max-age=#{365.day.to_i}" }
end

error.sh

2015-03-25T09:27:31.876246+00:00 app[web.1]: Detected 512 MB available memory, 512 MB limit per process (WEB_MEMORY)
2015-03-25T09:27:31.876264+00:00 app[web.1]: Recommending WEB_CONCURRENCY=1
2015-03-25T09:27:32.048613+00:00 heroku[worker.1]: State changed from starting to up
2015-03-25T09:27:32.515704+00:00 app[web.1]: I, [2015-03-25T09:27:32.515592 #3]  INFO -- : Refreshing Gem list
2015-03-25T09:27:33.325050+00:00 app[worker.1]: Detected 512 MB available memory, 512 MB limit per process (WEB_MEMORY)
2015-03-25T09:27:33.326484+00:00 app[worker.1]: Recommending WEB_CONCURRENCY=1
2015-03-25T09:27:35.240294+00:00 app[web.1]: /app/vendor/bundle/ruby/2.2.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/configuration.rb:73:in `eval': uninitialized constant CarrierWave::Storage::Fog (NameError)
2015-03-25T09:27:35.240300+00:00 app[web.1]:    from /app/vendor/bundle/ruby/2.2.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/configuration.rb:73:in `eval'
2015-03-25T09:27:35.240320+00:00 app[web.1]:    from /app/vendor/bundle/ruby/2.2.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/configuration.rb:73:in `storage'
2015-03-25T09:27:35.240322+00:00 app[web.1]:    from /app/app/uploaders/room_icon_uploader.rb:12:in `<class:RoomIconUploader>'
2015-03-25T09:27:35.240323+00:00 app[web.1]:    from /app/app/uploaders/room_icon_uploader.rb:3:in `<top (required)>'
2015-03-25T09:27:35.240325+00:00 app[web.1]:    from /app/app/models/room.rb:2:in `<class:Room>'
2015-03-25T09:27:35.240326+00:00 app[web.1]:    from /app/app/models/room.rb:1:in `<top (required)>'
2015-03-25T09:27:35.240327+00:00 app[web.1]:    from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/engine.rb:472:in `block (2 levels) in eager_load!'
2015-03-25T09:27:35.240331+00:00 app[web.1]:    from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/engine.rb:471:in `each'
2015-03-25T09:27:35.240332+00:00 app[web.1]:    from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/engine.rb:471:in `block in eager_load!'
2015-03-25T09:27:35.240334+00:00 app[web.1]:    from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/engine.rb:469:in `each'
2015-03-25T09:27:35.240335+00:00 app[web.1]:    from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/engine.rb:469:in `eager_load!'
2015-03-25T09:27:35.240336+00:00 app[web.1]:    from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/engine.rb:346:in `eager_load!'
2015-03-25T09:27:35.240338+00:00 app[web.1]:    from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/application/finisher.rb:56:in `each'
2

gemfile.lock

GEM
  remote: https://rubygems.org/
  remote: https://rails-assets.org/
  specs:
    actionmailer (4.2.0)
      actionpack (= 4.2.0)
      actionview (= 4.2.0)
      activejob (= 4.2.0)
      mail (~> 2.5, >= 2.5.4)
      rails-dom-testing (~> 1.0, >= 1.0.5)
    actionpack (4.2.0)
      actionview (= 4.2.0)
      activesupport (= 4.2.0)
      rack (~> 1.6.0)
      rack-test (~> 0.6.2)
      rails-dom-testing (~> 1.0, >= 1.0.5)
      rails-html-sanitizer (~> 1.0, >= 1.0.1)
    actionview (4.2.0)
      activesupport (= 4.2.0)
      builder (~> 3.1)
      erubis (~> 2.7.0)
      rails-dom-testing (~> 1.0, >= 1.0.5)
      rails-html-sanitizer (~> 1.0, >= 1.0.1)
    activejob (4.2.0)
      activesupport (= 4.2.0)
      globalid (>= 0.3.0)
    activemodel (4.2.0)
      activesupport (= 4.2.0)
      builder (~> 3.1)
    activerecord (4.2.0)
      activemodel (= 4.2.0)
      activesupport (= 4.2.0)
      arel (~> 6.0)
    activesupport (4.2.0)
      i18n (~> 0.7)
      json (~> 1.7, >= 1.7.7)
      minitest (~> 5.1)
      thread_safe (~> 0.3, >= 0.3.4)
      tzinfo (~> 1.1)
    addressable (2.3.7)
    airbrake (4.1.0)
      builder
      multi_json
    arel (6.0.0)
    awesome_print (1.6.1)
    binding_of_caller (0.7.2)
      debug_inspector (>= 0.0.1)
    bourbon (4.1.1)
      sass (~> 3.3)
      thor
    browserify-rails (0.8.1)
      sprockets (~> 2.0)
    builder (3.2.2)
    bundler-audit (0.3.1)
      bundler (~> 1.2)
      thor (~> 0.18)
    byebug (4.0.3)
      columnize (= 0.9.0)
    capybara (2.4.4)
      mime-types (>= 1.16)
      nokogiri (>= 1.3.3)
      rack (>= 1.0.0)
      rack-test (>= 0.5.4)
      xpath (~> 2.0)
    capybara-webkit (1.4.1)
      capybara (>= 2.3.0, < 2.5.0)
      json
    carrierwave (0.10.0)
      activemodel (>= 3.2.0)
      activesupport (>= 3.2.0)
      json (>= 1.7)
      mime-types (>= 1.16)
    coderay (1.1.0)
    coffee-rails (4.1.0)
      coffee-script (>= 2.2.0)
      railties (>= 4.0.0, < 5.0)
    coffee-script (2.3.0)
      coffee-script-source
      execjs
    coffee-script-source (1.9.1)
    columnize (0.9.0)
    crack (0.4.2)
      safe_yaml (~> 1.0.0)
    daemons (1.2.2)
    database_cleaner (1.4.1)
    debug_inspector (0.0.2)
    delayed_job (4.0.6)
      activesupport (>= 3.0, < 5.0)
    delayed_job_active_record (4.0.3)
      activerecord (>= 3.0, < 5.0)
      delayed_job (>= 3.0, < 4.1)
    diff-lcs (1.2.5)
    dotenv (2.0.0)
    dotenv-rails (2.0.0)
      dotenv (= 2.0.0)
    easy_translate (0.5.0)
      json
      thread
      thread_safe
    email_validator (1.5.0)
      activemodel
    erubis (2.7.0)
    excon (0.44.4)
    execjs (2.4.0)
    factory_girl (4.5.0)
      activesupport (>= 3.0.0)
    factory_girl_rails (4.5.0)
      factory_girl (~> 4.5.0)
      railties (>= 3.0.0)
    faraday (0.9.1)
      multipart-post (>= 1.2, < 3)
    flutie (2.0.0)
    fog-aws (0.1.1)
      fog-core (~> 1.27)
      fog-json (~> 1.0)
      fog-xml (~> 0.1)
      ipaddress (~> 0.8)
    fog-core (1.29.0)
      builder
      excon (~> 0.38)
      formatador (~> 0.2)
      mime-types
      net-scp (~> 1.1)
      net-ssh (>= 2.1.3)
    fog-json (1.0.0)
      multi_json (~> 1.0)
    fog-xml (0.1.1)
      fog-core
      nokogiri (~> 1.5, >= 1.5.11)
    font-awesome-sass (4.3.2.1)
      sass (~> 3.2)
    formatador (0.2.5)
    formulaic (0.2.0)
      activesupport
      capybara
      i18n
    globalid (0.3.3)
      activesupport (>= 4.1.0)
    hashie (3.4.0)
    high_voltage (2.2.1)
    highline (1.7.1)
    hike (1.2.3)
    i18n (0.7.0)
    i18n-tasks (0.7.13)
      activesupport
      easy_translate (>= 0.5.0)
      erubis
      highline
      i18n
      slop (~> 3.5)
      term-ansicolor
      terminal-table
    ipaddress (0.8.0)
    json (1.8.2)
    jwt (1.4.1)
    kgio (2.9.3)
    launchy (2.4.3)
      addressable (~> 2.3)
    linkedin-oauth2 (1.0.0)
      faraday (~> 0.9)
      hashie (~> 3.2)
      oauth2 (~> 1.0)
    loofah (2.0.1)
      nokogiri (>= 1.5.9)
    mail (2.6.3)
      mime-types (>= 1.16, < 3)
    method_source (0.8.2)
    mime-types (2.4.3)
    mini_portile (0.6.2)
    minitest (5.5.1)
    multi_json (1.11.0)
    multi_xml (0.5.5)
    multipart-post (2.0.0)
    net-scp (1.2.1)
      net-ssh (>= 2.6.5)
    net-ssh (2.9.2)
    newrelic_rpm (3.11.0.283)
    nokogiri (1.6.6.2)
      mini_portile (~> 0.6.0)
    normalize-rails (3.0.1)
    oauth2 (1.0.0)
      faraday (>= 0.8, < 0.10)
      jwt (~> 1.0)
      multi_json (~> 1.3)
      multi_xml (~> 0.5)
      rack (~> 1.2)
    omniauth (1.2.2)
      hashie (>= 1.2, < 4)
      rack (~> 1.0)
    omniauth-linkedin-oauth2 (0.1.5)
      omniauth (~> 1.0)
      omniauth-oauth2
    omniauth-oauth2 (1.2.0)
      faraday (>= 0.8, < 0.10)
      multi_json (~> 1.3)
      oauth2 (~> 1.0)
      omniauth (~> 1.2)
    pg (0.18.1)
    pry (0.10.1)
      coderay (~> 1.1.0)
      method_source (~> 0.8.1)
      slop (~> 3.4)
    pry-rails (0.3.3)
      pry (>= 0.9.10)
    rack (1.6.0)
    rack-test (0.6.3)
      rack (>= 1.0)
    rack-timeout (0.2.1)
    rails (4.2.0)
      actionmailer (= 4.2.0)
      actionpack (= 4.2.0)
      actionview (= 4.2.0)
      activejob (= 4.2.0)
      activemodel (= 4.2.0)
      activerecord (= 4.2.0)
      activesupport (= 4.2.0)
      bundler (>= 1.3.0, < 2.0)
      railties (= 4.2.0)
      sprockets-rails
    rails-assets-bootstrap (3.3.4)
      rails-assets-jquery (>= 1.9.1)
    rails-assets-jquery (2.1.3)
    rails-deprecated_sanitizer (1.0.3)
      activesupport (>= 4.2.0.alpha)
    rails-dom-testing (1.0.6)
      activesupport (>= 4.2.0.beta, < 5.0)
      nokogiri (~> 1.6.0)
      rails-deprecated_sanitizer (>= 1.0.1)
    rails-html-sanitizer (1.0.2)
      loofah (~> 2.0)
    rails_12factor (0.0.3)
      rails_serve_static_assets
      rails_stdout_logging
    rails_serve_static_assets (0.0.4)
    rails_stdout_logging (0.0.3)
    railties (4.2.0)
      actionpack (= 4.2.0)
      activesupport (= 4.2.0)
      rake (>= 0.8.7)
      thor (>= 0.18.1, < 2.0)
    raindrops (0.13.0)
    rake (10.4.2)
    recipient_interceptor (0.1.2)
      mail
    rspec-core (3.1.7)
      rspec-support (~> 3.1.0)
    rspec-expectations (3.1.2)
      diff-lcs (>= 1.2.0, < 2.0)
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    rspec-mocks (3.1.3)
      rspec-support (~> 3.1.0)
    rspec-rails (3.1.0)
      actionpack (>= 3.0)
      activesupport (>= 3.0)
      railties (>= 3.0)
      rspec-core (~> 3.1.0)
      rspec-expectations (~> 3.1.0)
      rspec-mocks (~> 3.1.0)
      rspec-support (~> 3.1.0)
    rspec-support (3.1.2)
    safe_yaml (1.0.4)
    sass (3.4.13)
    sass-rails (5.0.1)
      railties (>= 4.0.0, < 5.0)
      sass (~> 3.1)
      sprockets (>= 2.8, < 4.0)
      sprockets-rails (>= 2.0, < 4.0)
      tilt (~> 1.1)
    shoulda-matchers (2.8.0)
      activesupport (>= 3.0.0)
    simple_form (3.1.0)
      actionpack (~> 4.0)
      activemodel (~> 4.0)
    slop (3.6.0)
    spring (1.3.3)
    spring-commands-rspec (1.0.4)
      spring (>= 0.9.1)
    sprockets (2.12.3)
      hike (~> 1.2)
      multi_json (~> 1.0)
      rack (~> 1.0)
      tilt (~> 1.1, != 1.3.0)
    sprockets-rails (2.2.4)
      actionpack (>= 3.0)
      activesupport (>= 3.0)
      sprockets (>= 2.8, < 4.0)
    term-ansicolor (1.3.0)
      tins (~> 1.0)
    terminal-table (1.4.5)
    thor (0.19.1)
    thread (0.1.5)
    thread_safe (0.3.5)
    tilt (1.4.1)
    timecop (0.7.3)
    tins (1.3.5)
    title (0.0.5)
      i18n
      rails (>= 3.1)
    tzinfo (1.2.2)
      thread_safe (~> 0.1)
    uglifier (2.7.1)
      execjs (>= 0.3.0)
      json (>= 1.8.0)
    unicorn (4.8.3)
      kgio (~> 2.6)
      rack
      raindrops (~> 0.7)
    web-console (2.1.2)
      activemodel (>= 4.0)
      binding_of_caller (>= 0.7.2)
      railties (>= 4.0)
      sprockets-rails (>= 2.0, < 4.0)
    webmock (1.20.4)
      addressable (>= 2.3.6)
      crack (>= 0.3.2)
    xpath (2.0.0)
      nokogiri (~> 1.3)

PLATFORMS
  ruby

DEPENDENCIES
  airbrake
  awesome_print
  bourbon (~> 4.1.0)
  browserify-rails (~> 0.7)
  bundler-audit
  byebug
  capybara-webkit (>= 1.2.0)
  carrierwave
  coffee-rails (~> 4.1.0)
  daemons
  database_cleaner
  delayed_job_active_record
  dotenv-rails
  email_validator
  factory_girl_rails
  flutie
  fog-aws
  font-awesome-sass
  formulaic
  high_voltage
  i18n-tasks
  launchy
  linkedin-oauth2 (~> 1.0)
  newrelic_rpm
  normalize-rails (~> 3.0.0)
  omniauth
  omniauth-linkedin-oauth2
  pg
  pry-rails
  rack-timeout
  rails (= 4.2.0)
  rails-assets-bootstrap!
  rails_12factor
  recipient_interceptor
  rspec-rails (~> 3.1.0)
  sass-rails (~> 5.0)
  shoulda-matchers
  simple_form
  spring
  spring-commands-rspec
  timecop
  title
  uglifier
  unicorn
  web-console
  webmock

room_icon_uploader.rb

# encoding: utf-8

class RoomIconUploader < CarrierWave::Uploader::Base
  # Include RMagick or MiniMagick support:
  # include CarrierWave::RMagick
  # include CarrierWave::MiniMagick

  # Choose what kind of storage to use for this uploader:
  if Rails.env.development?
    storage :file
  else
    storage :fog
  end

  # Override the directory where uploaded files will be stored.
  # This is a sensible default for uploaders that are meant to be mounted:
  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

  # Provide a default URL as a default if there hasn't been a file uploaded:
  # def default_url
  #   # For Rails 3.1+ asset pipeline compatibility:
  #   # ActionController::Base.helpers.asset_path("fallback/" +
  #   [version_name, "default.png"].compact.join('_'))
  #
  #   "/images/fallback/" + [version_name, "default.png"].compact.join('_')
  # end

  # Process files as they are uploaded:
  # process :scale => [200, 300]
  #
  # def scale(width, height)
  #   # do something
  # end

  # Create different versions of your uploaded files:
  # version :thumb do
  #   process :resize_to_fit => [50, 50]
  # end

  # Add a white list of extensions which are allowed to be uploaded.
  # For images you might use something like this:
  def extension_white_list
    %w(jpg jpeg gif png svg)
  end

  # Override the filename of the uploaded files:
  # Avoid using model.id or version_name here, see uploader/store.rb for details
  # def filename
  #   "something.jpg" if original_filename
  # end
end