Update Dockerfile

Dockerfile

@@ -2,17 +2,15 @@
 FROM node:14-bullseye-slim as build-step
 WORKDIR /app
 ENV PATH /app/node_modules/.bin:$PATH
-RUN mkdir ./frontend
+
+# Copy package.json and package-lock.json first to leverage Docker cache
 COPY ./frontend/package.json ./frontend/package-lock.json ./frontend/
 WORKDIR /app/frontend
 RUN npm install -g [email protected]
-# It's OK to have multiple consecutive `RUN` instructions.
-# hadolint ignore=DL3059
 RUN npm install
 
-WORKDIR /app
+# Copy the rest of the frontend code and build the project
 COPY ./frontend ./frontend
-
 WORKDIR /app/frontend
 RUN npm run build
 
@@ -37,8 +35,9 @@ RUN chmod -R 755 /var/log/nginx && \
 # Step #3: configure nginx and flask
 COPY --from=build-step /app/frontend/build /usr/share/nginx/html
 COPY deployment/docker/nginx.conf /etc/nginx/nginx.conf  
-COPY deployment/docker/serve.sh .
-RUN chmod a+x ./serve.sh
+COPY deployment/default /etc/nginx/sites-enabled/default  
+COPY deployment/docker/serve.sh /serve.sh  
+RUN chmod a+x /serve.sh
 
 # Expose port 80
 EXPOSE 80
@@ -47,4 +46,4 @@ EXPOSE 80
 USER root
 
 ENTRYPOINT ["/bin/bash"]
-CMD ["./serve.sh"]
+CMD ["/serve.sh"]