Add Dockerfile for multi-stage build setup with Node.js

Dockerfile

@@ -0,0 +1,32 @@
+FROM node:20.16.0 AS builder
+
+WORKDIR /app
+# RUN apk add --no-cache libc6-compat
+
+
+COPY package*.json ./
+RUN npm install
+
+
+COPY . .
+
+RUN npm run build
+
+#---
+
+FROM node:20.16.0 AS runner
+
+WORKDIR /app
+
+
+COPY package*.json ./
+RUN npm ci --omit=dev
+
+COPY --from=builder /app/.next ./.next
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/package*.json ./
+
+EXPOSE 3000
+
+CMD ["npm", "start"]