Sidekiq Initializer base on current active environment

redis.yml

## For more details refer to: http://tsamni.com/post/84515089035/sidekiq-performing-background-or-delayed-jobs-with
# config/redis.yml
# Redis db configuration file
# development environment
development:
    host: 'localhost'
    port: '6379'

# local testing environment
test:
    host: 'localhost'
    port: '6379'

# production environment
production:
    host: 'your.aws.elastic.cache.instance.endpoint.cache.amazonaws.com'
    port: '6379'

sidekiq.rb

## For more details refer to: http://tsamni.com/post/84515089035/sidekiq-performing-background-or-delayed-jobs-with
# config/initializers/sidekiq.rb
rails_root = Rails.root || File.dirname(__FILE__) + '/../..'
rails_env = Rails.env || 'development'

redis_config = YAML.load_file(rails_root.to_s + '/config/redis.yml')
redis_config.merge! redis_config.fetch(Rails.env, {})
redis_config.symbolize_keys!

Sidekiq.configure_server do |config|
  config.redis = { :url => "redis://#{redis_config[:host]}:#{redis_config[:port]}/12", :namespace => 'Sidekiq' }
end

Sidekiq.configure_client do |config|
  config.redis = { :url => "redis://#{redis_config[:host]}:#{redis_config[:port]}/12", :namespace => 'Sidekiq' }
end