Dockerfile added along with other files necessary for a docker container

Dockerfile

@@ -0,0 +1,25 @@
+# Build stage
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+COPY package*.json ./
+RUN npm ci
+
+COPY . .
+RUN npm run build
+
+# Production stage
+FROM node:20-alpine
+
+WORKDIR /app
+ENV NODE_ENV=production
+
+COPY --from=builder /app/package*.json ./
+RUN npm ci --omit=dev
+
+COPY --from=builder /app/.next ./.next
+COPY --from=builder /app/public ./public
+
+EXPOSE 3000
+CMD ["npm", "start"]