implemented Dockerfile

Dockerfile

@@ -0,0 +1,28 @@
+# Stage 1: Build the Next.js project
+FROM node:18 AS builder
+
+ENV WORKDIR=/app
+WORKDIR /app
+
+# copy all the soruce code
+COPY . .
+
+# installing dependencies
+RUN npm i && npm cache clean --force
+
+# building app
+RUN npm run build
+
+# Stage 2: Run the Next.js server
+FROM gcr.io/distroless/nodejs:18 as prod-image
+
+WORKDIR /app
+
+COPY --from=builder /app/package.json /app/package-lock.json ./
+# installing production dependencies
+RUN npm i --verbose --only=production && npm cache clean --force
+
+COPY --from=builder /app/.next ./.next
+COPY ./public /app/public
+
+CMD ["npm", "start"]