diff --git a/Dockerfile b/Dockerfile
index d8ae6ea..97b5781 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,10 +3,13 @@ FROM node:15
 # Create app directory
 WORKDIR /usr/src/app
 
+VOLUME [ "/usr/src/app/data" ]
+
 # Install app dependencies
 # A wildcard is used to ensure both package.json AND package-lock.json are copied
 # where available (npm@5+)
 COPY package*.json ./
+COPY src/postinstall.js ./src/postinstall.js
 
 RUN npm install
 # If you are building your code for production