Add debug attribute

- ref: https://github.com/etsy/statsd#debugging
- ref: https://github.com/etsy/statsd/blob/master/exampleConfig.js#L22

README.md

@@ -47,7 +47,9 @@ Installs and configures StatsD.
 * `node["statsd"]["delete_counters"]` - Don't send values to graphite for
   inactive counters (default: `false`).
 * `node["statsd"]["username"]` - Will be used for process supervision
-  (default: `stasd`).
+  (default: `statsd`).
+* `node["statsd"]["debug"]` - Log exceptions and print out more diagnostic
+  info (default: `false`).
 * `node["statsd"]["dump_messages"]` - Print debugging information on incoming
   messages (default: `false`).
 * `node["statsd"]["graphite"]["legacy_namespace"]` - Flag to use legacy

attributes/default.rb

@@ -18,6 +18,7 @@
 default["statsd"]["delete_sets"]                  = false
 default["statsd"]["delete_counters"]              = false
 default["statsd"]["username"]                     = "statsd"
+default["statsd"]["debug"]                        = false
 default["statsd"]["dump_messages"]                = false
 
 # Graphite storage config

recipes/default.rb

@@ -47,6 +47,7 @@
     :prefix_timer       => node["statsd"]["graphite"]["prefix_timer"],
     :prefix_gauge       => node["statsd"]["graphite"]["prefix_gauge"],
     :prefix_set         => node["statsd"]["graphite"]["prefix_set"],
+    :debug              => node["statsd"]["debug"],
     :dump_messages      => node["statsd"]["dump_messages"]
   )
   notifies :restart, "service[statsd]", :delayed

templates/default/config.js.erb

@@ -25,5 +25,6 @@
     "prefixGauge": "<%= @prefix_gauge %>",
     "prefixSet": "<%= @prefix_set %>"
   },
+  "debug": <%= @debug %>,
   "dumpMessages": <%= @dump_messages %>
 }