Add collectd for backups

src/system.js

@@ -16,7 +16,8 @@ const apps = require('./apps.js'),
     notifications = require('./notifications.js'),
     os = require('os'),
     paths = require('./paths.js'),
-    safe = require('safetydance');
+    safe = require('safetydance'),
+    settings = require('./settings.js');
 
 function getDisks(callback) {
     assert.strictEqual(typeof callback, 'function');
@@ -45,6 +46,7 @@ function getDisks(callback) {
                 platformDataDisk: values[2].filesystem,
                 appsDataDisk: values[3].filesystem,
                 dockerDataDisk: values[4].filesystem,
+                backupsDisk: null,
                 apps: {}
             };
 
@@ -64,7 +66,18 @@ function getDisks(callback) {
                 }, function (error) {
                     if (error) return callback(error);
 
-                    callback(null, disks);
+                    settings.getBackupConfig(function (error, backupConfig) {
+                        if (error) return callback(error);
+
+                        if (backupConfig.provider !== 'filesystem') return callback(null, disks);
+
+                        dfFileAsync(backupConfig.backupFolder, function (error, result) {
+                            if (error) return callback(error);
+
+                            disks.backupsDisk = result.filesystem;
+                            callback(null, disks);
+                        });
+                    });
                 });
             });
         });