add environment for production

Dockerfile

@@ -35,6 +35,6 @@ COPY --from=base /public /public
 # Expose required port
 # CMD ["npm", "run", "start"]
 FROM nginx:alpine
-COPY --from=builder /app/dist /usr/share/nginx/html
+COPY --from=base /app/dist /usr/share/nginx/html
 EXPOSE 80
 CMD ["nginx", "-g", "daemon off;"]