Provide hosts as environment settings and add npm run start script

services/contacts/config/settings.defaults.coffee

@@ -5,7 +5,7 @@ module.exports =
 	internal:
 		contacts:
 			port: 3036
-			host: "localhost"
+			host: process.env["LISTEN_ADDRESS"] or "localhost"
 
 	mongo:
-		url: 'mongodb://127.0.0.1/sharelatex'
+		url: "mongodb://#{process.env["MONGO_HOST"] or "localhost"}/sharelatex"

services/contacts/package.json

@@ -7,6 +7,10 @@
     "type": "git",
     "url": "https://github.com/sharelatex/contacts-sharelatex.git"
   },
+  "scripts": {
+    "compile:app": "coffee -o app/js -c app/coffee && coffee -c app.coffee",
+    "start": "npm run compile:app && node app.js"
+  },
   "dependencies": {
     "settings-sharelatex": "git+https://github.com/sharelatex/settings-sharelatex.git#v1.0.0",
     "logger-sharelatex": "git+https://github.com/sharelatex/logger-sharelatex.git#v1.1.0",