Update 4 files to be able to parse config/redis.yml with ERB.
config/initializers/message_bus.rb
- MessageBus.redis_config = YAML::load(File.open("#{Rails.root}/config/redis.yml"))[Rails.env].symbolize_keys
+ MessageBus.redis_config = YAML.load(ERB.new(File.new("#{Rails.root}/config/redis.yml").read).result)[Rails.env].symbolize_keys