Use new data path globals in index.js

server/index.js

@@ -3,8 +3,6 @@ const logger = require('winston')
 const app = require('./app')
 const portFromConfiguration = app.get('port')
 
-const path = require('path')
-const os = require('os')
 const fs = require('fs-extra')
 
 const sodium = require('libsodium-wrappers')
@@ -29,8 +27,8 @@ function startFeathersServer () {
 }
 
 // File-based data (e.g., configuration, etc.) is saved at ~/.indie/site
-const dataDirectoryPath = path.join(os.homedir(), '.indie', 'site')
-const serverSecretFilePath = path.join(dataDirectoryPath, 'server-secret.json')
+const dataDirectoryPath = app.get('dataDirectoryPath')
+const serverSecretFilePath = app.get('serverSecretFilePath')
 
 // On first run of the server only, create a server secret. This
 // server secret is used to sign the JSON Web Tokens that we use