convert app to use node-config

config/default.js

@@ -0,0 +1,36 @@
+module.exports = {
+  host: process.env.HOST || 'localhost',
+  port: process.env.PORT || 7777,
+
+  keyLength: 10,
+
+  maxLength: 400000,
+
+  staticMaxAge: 86400,
+
+  recompressStaticAssets: true,
+
+  logging: [
+    {
+      level: "verbose",
+      type: "Console",
+      colorize: true
+    }
+  ],
+
+  keyGenerator: {
+    type: "phonetic"
+  },
+
+  storage: {
+    type: "redis",
+    host: process.env.REDIS_HOST || 'localhost',
+    port: process.env.REDIS_PORT || 6379,
+    db: process.env.REDIS_DB || 2,
+    expire: process.env.REDIS_EXPIRE || 2592000
+  },
+
+  documents: {
+    about: "./about.md"
+  }
+};

config/docker.js

@@ -0,0 +1,36 @@
+module.exports = {
+  host: "0.0.0.0",
+  port: 7777,
+
+  keyLength: 10,
+
+  maxLength: 400000,
+
+  staticMaxAge: 86400,
+
+  recompressStaticAssets: true,
+
+  logging: [
+    {
+      level: "verbose",
+      type: "Console",
+      colorize: true
+    }
+  ],
+
+  keyGenerator: {
+    type: "phonetic"
+  },
+
+  storage: {
+    type: "redis",
+    host: process.env.REDIS_PORT_6379_TCP_ADDR || process.env.REDIS_HOST || 'localhost',
+    port: process.env.REDIS_PORT_6379_TCP_PORT || process.env.REDIS_PORT || 6379,
+    db: process.env.REDIS_DB || 2,
+    expire: process.env.REDIS_EXPIRE || 2592000
+  },
+
+  documents: {
+    about: "./about.md"
+  }
+};

package.json

@@ -18,7 +18,8 @@
     "connect": "1.9.2",
     "redis-url": "0.1.0",
     "redis": "0.8.1",
-    "uglify-js": "1.3.3"
+    "uglify-js": "1.3.3",
+    "config": "0.4.35"
   },
   "devDependencies": {
     "mocha": "*",

server.js

@@ -1,17 +1,13 @@
 var http = require('http');
 var url = require('url');
 var fs = require('fs');
+var config = require('config');
 
 var winston = require('winston');
 var connect = require('connect');
 
 var DocumentHandler = require('./lib/document_handler');
 
-// Load the configuration and set some defaults
-var config = JSON.parse(fs.readFileSync('./config.js', 'utf8'));
-config.port = process.env.PORT || config.port || 7777;
-config.host = process.env.HOST || config.host || 'localhost';
-
 // Set up the logger
 if (config.logging) {
   try {