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

lib/units/device/support/storage.js

@@ -0,0 +1,53 @@
+var util = require('util')
+
+var syrup = require('syrup')
+var Promise = require('bluebird')
+var request = require('request')
+
+var logger = require('../../../util/logger')
+
+module.exports = syrup.serial()
+  .define(function(options) {
+    var log = logger.createLogger('device:support:storage')
+    var plugin = Object.create(null)
+
+    plugin.store = function(type, stream, meta) {
+      var resolver = Promise.defer()
+
+      var req = request.post({
+          url: util.format('%sapi/v1/s/%s', options.storageUrl, type)
+        }
+      , function(err, res, body) {
+          if (err) {
+            log.error('Upload failed', err.stack)
+            resolver.reject(err)
+          }
+          else if (res.statusCode !== 201) {
+            log.error('Upload failed: HTTP %d', res.statusCode)
+            resolver.reject(new Error(util.format(
+              'Upload failed: HTTP %d'
+            , res.statusCode
+            )))
+          }
+          else {
+            try {
+              var result = JSON.parse(body)
+              log.info('Uploaded to %s', result.resources.file.href)
+              resolver.resolve(result.resources.file)
+            }
+            catch (err) {
+              log.error('Invalid JSON in response', err.stack, body)
+              resolver.reject(err)
+            }
+          }
+        }
+      )
+
+      req.form()
+        .append('file', stream, meta)
+
+      return resolver.promise
+    }
+
+    return plugin
+  })