Make website Docker ready

backend/Dockerfile

@@ -0,0 +1,12 @@
+FROM node:alpine AS builder
+WORKDIR /app
+COPY ./package.json ./
+RUN npm install
+COPY . .
+RUN npm run build
+
+FROM node:alpine
+WORKDIR /app
+COPY --from=builder /app ./
+CMD ["npm", "run", "start:prod"]
+