key command fin v1

config/index.js

@@ -1,6 +1,7 @@
 module.exports = {
   port: process.env.NODE_PORT || 10230,
   url: process.env.HOST_URL || '',
+  image_root: process.env.IMAGE_ROOT || '/image',
   line: {
     secret: process.env.LINE_SECRET || '',
     access: process.env.LINE_ACCESS || ''