Add IP config option

lib/arguments.js

@@ -36,5 +36,9 @@ module.exports = {
   debug: {
     alias: 'd',
     describe: 'Force run the server in development mode'
-  }
+  },
+  ip: {
+    alias: 'i',
+    describe: 'IP server runs on [default: 0.0.0.0]'
+  },
 };

lib/config.js

@@ -27,6 +27,7 @@ nconf.file(nconf.get('config') || './config.json');
 nconf.defaults({
   name: nconf.get('name') || 'spserver',
   NODE_ENV: 'development',
+  ip: '0.0.0.0',
   production: {
     port: 80,
     bunyan: {

lib/spserver.js

@@ -26,9 +26,9 @@ function _resolveFinalSettings(settings) {
     settings[env] = {};
   }
 
-  // For 'name', 'file', 'serve', and 'port', default to the global setting rather than an
+  // For 'name', 'file', 'serve', 'ip', and 'port', default to the global setting rather than an
   // individual environment's setting, because it might have been set via command-line flags
-  _(['name', 'file', 'serve', 'port']).forEach(function (field) {
+  _(['name', 'file', 'serve', 'ip', 'port']).forEach(function (field) {
     finalSettings[field] = settings[field] || settings[env][field];
   });
 
@@ -105,7 +105,7 @@ var spserver = function (settings) {
     }).resume();
   });
 
-  server.listen(finalSettings.port);
+  server.listen(finalSettings.port, finalSettings.ip);
 
   logger.info(
     'Started single-page server: ' + finalSettings.name +