Merge pull request #351 from alphagov/standardised-json-logging-for-g…

…ovuk Enabling Logstasher in production
alphagov · Dec 19, 2013 · 3adde8b · 3adde8b
2 parents e696b4d + 765ca49
commit 3adde8b
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diff --git a/config/environments/production.rb b/config/environments/production.rb
@@ -57,4 +57,9 @@
   config.active_support.deprecation = :notify
 
   config.action_controller.asset_host = ENV['GOVUK_ASSET_HOST']
+
+  # Enable JSON-style logging
+  config.logstasher.enabled = true
+  config.logstasher.logger = Logger.new("#{Rails.root}/log/#{Rails.env}.json.log")
+  config.logstasher.supress_app_log = true
 end
diff --git a/config/initializers/logstasher.rb b/config/initializers/logstasher.rb
@@ -0,0 +1,8 @@
+if Object.const_defined?('LogStasher') && LogStasher.enabled
+  LogStasher.add_custom_fields do |fields|
+    # Mirrors Nginx request logging, e.g GET /path/here HTTP/1.1
+    fields[:request] = "#{request.request_method} #{request.fullpath} #{request.headers['SERVER_PROTOCOL']}"
+    # Pass X-Varnish to logging
+    fields[:varnish_id] = request.headers['X-Varnish']
+  end
+end