created app skeleton

webserver/Dockerfile

@@ -1,5 +1,7 @@
 FROM node:16-alpine as build-step
 RUN mkdir /app/
+RUN mkdir /app/node_modules
+RUN chown -R node:node /app/node_modules          
 WORKDIR /app/
 ENV PATH /app/node_modules/.bin:$PATH
 COPY package.json ./
@@ -7,5 +9,5 @@ COPY package-lock.json ./
 RUN npm install
 RUN npm install react-scripts
 COPY . ./
-# USER node
+#USER node
 CMD ["npm", "start"]