Rename "roles" to "units". Put units in their own folders.

lib/units/device/support/http.js

@@ -0,0 +1,29 @@
+var http = require('http')
+var util = require('util')
+
+var syrup = require('syrup')
+var express = require('express')
+
+var logger = require('../../../util/logger')
+
+module.exports = syrup.serial()
+  .define(function(options) {
+    var log = logger.createLogger('device:support:http')
+      , port = options.ports.pop()
+      , app = express()
+      , server = http.createServer(app)
+
+    app.set('strict routing', true)
+    app.set('case sensitive routing', true)
+    app.set('public url', util.format(
+      'http://%s:%s'
+    , options.publicIp
+    , port
+    ))
+
+    server.listen(port)
+
+    log.info('Listening on %s', app.get('public url'))
+
+    return app
+  })