plumb in middleware to send request logs to statsd

bin/browserid

@@ -97,6 +97,16 @@ app.use(express.logger({
   }
 }));
 
+var statsd_config = config.get('statsd');
+if (statsd_config && statsd_config.enabled) {
+  logger_statsd = require("connect-logger-statsd");
+  app.use(logger_statsd({
+    host: statsd_config.hostname || "localhost",
+    port: statsd_config.port || 8125,
+    prefix: statsd_config.prefix || "browserid.webhead."
+  }));
+}
+
 // #3 - Add Strict-Transport-Security headers if we're serving over SSL
 if (config.get('scheme') == 'https') {
   app.use(function(req, resp, next) {

bin/dbwriter

@@ -75,6 +75,16 @@ app.use(express.logger({
   }
 }));
 
+var statsd_config = config.get('statsd');
+if (statsd_config && statsd_config.enabled) {
+  logger_statsd = require("connect-logger-statsd");
+  app.use(logger_statsd({
+    host: statsd_config.hostname || "localhost",
+    port: statsd_config.port || 8125,
+    prefix: statsd_config.prefix || "browserid.dbwriter."
+  }));
+}
+
 // Add Strict-Transport-Security headers if we're serving over SSL
 if (config.get('scheme') == 'https') {
   app.use(function(req, resp, next) {

bin/keysigner

@@ -67,6 +67,16 @@ app.use(express.logger({
   }
 }));
 
+var statsd_config = config.get('statsd');
+if (statsd_config && statsd_config.enabled) {
+  logger_statsd = require("connect-logger-statsd");
+  app.use(logger_statsd({
+    host: statsd_config.hostname || "localhost",
+    port: statsd_config.port || 8125,
+    prefix: statsd_config.prefix || "browserid.keysigner."
+  }));
+}
+
 app.use(function(req, resp, next) {
   next();
 });

bin/verifier

@@ -66,6 +66,16 @@ app.use(express.logger({
   }
 }));
 
+var statsd_config = config.get('statsd');
+if (statsd_config && statsd_config.enabled) {
+  logger_statsd = require("connect-logger-statsd");
+  app.use(logger_statsd({
+    host: statsd_config.hostname || "localhost",
+    port: statsd_config.port || 8125,
+    prefix: statsd_config.prefix || "browserid.verifier."
+  }));
+}
+
 app.use(express.bodyParser());
 
 app.post('/verify', function(req, resp, next) {

lib/configuration.js

@@ -83,6 +83,9 @@ g_configs.production = {
     create_schema: true,
     may_write: false
   },
+  statsd: {
+    enabled: false
+  },
   bcrypt_work_factor: 12,
   authentication_duration_ms: (2 * 7 * 24 * 60 * 60 * 1000),
   certificate_validity_ms: (24 * 60 * 60 * 1000),

package.json

@@ -29,6 +29,8 @@
     , "postprocess": "0.0.3"
     , "urlparse": "0.0.1"
     , "uglifycss": "0.0.4"
+    , "node-statsd": "https://github.com/mojodna/node-statsd/tarball/2584c08fad"
+    , "connect-logger-statsd": "0.0.1"
   }
   , "scripts": {
     "postinstall": "./scripts/generate_ephemeral_keys.sh",