--- a/config/environments/production.rb	Tue Mar 01 16:34:29 2016 +0900
+++ b/config/environments/production.rb	Fri May 13 04:32:21 2016 +0900
@@ -14,42 +14,50 @@
   config.consider_all_requests_local       = false
   config.action_controller.perform_caching = true
 
-  # Enable Rack::Cache to put a simple HTTP cache in front of your application
-  # Add `rack-cache` to your Gemfile before enabling this.
-  # For large-scale production use, consider using a caching reverse proxy like nginx, varnish or squid.
-  # config.action_dispatch.rack_cache = true
+  # Disable serving static files from the `/public` folder by default since
+  # Apache or NGINX already handles this.
+  config.public_file_server.enabled = ENV["RAILS_SERVE_STATIC_FILES"].present?
+
+  # Compress JavaScripts and CSS.
+  # config.assets.js_compressor = :uglifier
+  # config.assets.css_compressor = :sass
 
-  # Disable Rails's static asset server (Apache or nginx will already do this).
-  config.serve_static_files = false
+  # Do not fallback to assets pipeline if a precompiled asset is missed.
+  # config.assets.compile = false
+
+  # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb
+
+  # Enable serving of images, stylesheets, and JavaScripts from an asset server.
+  # config.action_controller.asset_host = 'http://assets.example.com'
 
   # Specifies the header that your server uses for sending files.
-  # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache
-  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx
+  # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
+  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
+
+  # Action Cable endpoint configuration
+  # config.action_cable.url = 'wss://example.com/cable'
+  # config.action_cable.allowed_request_origins = [ 'http://example.com', /http:\/\/example.*/ ]
+
+  # Don't mount Action Cable in the main server process.
+  # config.action_cable.mount_path = nil
 
   # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
   # config.force_ssl = true
 
-  # Use default logging formatter so that PID and timestamp are not suppressed.
-  config.log_formatter = ::Logger::Formatter.new
-
-  # Set to :debug to see everything in the log.
-  config.log_level = :warn
-  config.logger = ::Logger.new(STDOUT)
-
-  # Recommended by http://help.papertrailapp.com/kb/configuration/unicorn
-  config.logger.level = Logger.const_get("WARN")
+  # Use the lowest log level to ensure availability of diagnostic information
+  # when problems arise.
+  config.log_level = :debug
 
   # Prepend all log lines with the following tags.
-  # config.log_tags = [ :subdomain, :uuid ]
-
-  # Use a different logger for distributed setups.
-  # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
+  config.log_tags = [:request_id]
 
   # Use a different cache store in production.
   # config.cache_store = :mem_cache_store
 
-  # Enable serving of images, stylesheets, and JavaScripts from an asset server.
-  # config.action_controller.asset_host = "http://assets.example.com"
+  # Use a real queuing backend for Active Job (and separate queues per environment)
+  # config.active_job.queue_adapter     = :resque
+  # config.active_job.queue_name_prefix = "rsstweet_#{Rails.env}"
+  # config.action_mailer.perform_caching = false
 
   # Ignore bad email addresses and do not raise email delivery errors.
   # Set this to true and configure the email server for immediate delivery to raise delivery errors.
@@ -62,6 +70,19 @@
   # Send deprecation notices to registered listeners.
   config.active_support.deprecation = :notify
 
-  # Disable automatic flushing of the log to improve performance.
-  # config.autoflush_log = false
+  # Use default logging formatter so that PID and timestamp are not suppressed.
+  config.log_formatter = ::Logger::Formatter.new
+
+  # Use a different logger for distributed setups.
+  # require 'syslog/logger'
+  # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')
+
+  # if ENV["RAILS_LOG_TO_STDOUT"].present?
+  logger           = ActiveSupport::Logger.new(STDOUT)
+  logger.formatter = config.log_formatter
+  config.logger = ActiveSupport::TaggedLogging.new(logger)
+  # end
+
+  # Do not dump schema after migrations.
+  # config.active_record.dump_schema_after_migration = false
 end