improve: add production stage

Dockerfile

@@ -1,15 +1,27 @@
-FROM node:18 as build-stage
+FROM node:18-alpine AS build-stage
 WORKDIR /app
 
+
 COPY package*.json ./
 
 RUN npm install
 
 COPY . .
-COPY BuildConfig.sh /app/BuildConfig.sh
-RUN chmod +x /app/BuildConfig.sh
 RUN npm run build
 
-EXPOSE 3000
 
-CMD ["/bin/bash", "-c", "/app/BuildConfig.sh && npm start"]
+FROM nginx:stable-alpine AS production-stage
+
+RUN apk add --no-cache bash
+
+WORKDIR /app
+COPY package*.json ./
+
+COPY --from=build-stage /app/dist /usr/share/nginx/html
+COPY --from=build-stage /app/public/icons /usr/share/nginx/html/icons
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY BuildConfig.sh /docker-entrypoint.d/10-build-config.sh
+RUN chmod a+x /docker-entrypoint.d/10-build-config.sh
+EXPOSE $FRONTEND_PORT
+
+CMD ["nginx", "-g", "daemon off;"]