feat : updated dockerfile

dockerfile

@@ -1,26 +1,58 @@
-# Step 1: Use the official Node.js image as the base image
-FROM node:18-alpine
+# Install dependencies only when needed
+FROM node:16-alpine AS deps
+# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
+RUN apk add --no-cache libc6-compat
+WORKDIR /app
+# COPY package.json yarn.lock ./
+# RUN yarn install --frozen-lockfile
 
-# Step 2: Install pnpm globally
-RUN npm install -g pnpm
+# If using npm with a `package-lock.json` comment out above and use below instead
+COPY package.json package-lock.json ./ 
+RUN npm ci
 
-# Step 3: Set the working directory inside the container
+# Rebuild the source code only when needed
+FROM node:16-alpine AS builder
 WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
 
-# Step 4: Copy the package.json and pnpm-lock.yaml files to the container
-COPY package.json pnpm-lock.yaml ./
+# Next.js collects completely anonymous telemetry data about general usage.
+# Learn more here: https://nextjs.org/telemetry
+# Uncomment the following line in case you want to disable telemetry during the build.
+# ENV NEXT_TELEMETRY_DISABLED 1
 
-# Step 5: Install the dependencies using pnpm
-RUN pnpm install
+# RUN yarn build
 
-# Step 6: Copy the rest of the application code to the container
-COPY . .
+# If using npm comment out above and use below instead
+RUN npm run build
+
+# Production image, copy all the files and run next
+FROM node:16-alpine AS runner
+WORKDIR /app
+
+ENV NODE_ENV production
+# Uncomment the following line in case you want to disable telemetry during runtime.
+# ENV NEXT_TELEMETRY_DISABLED 1
 
-# Step 7: Build the Next.js application
-RUN pnpm run build
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nextjs
+
+# You only need to copy next.config.js if you are NOT using the default configuration
+# COPY --from=builder /app/next.config.js ./
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/package.json ./package.json
+
+# Automatically leverage output traces to reduce image size 
+# https://nextjs.org/docs/advanced-features/output-file-tracing
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+
+RUN chmod -R 777 ./public
+
+USER nextjs
 
-# Step 8: Expose the port the app runs on
 EXPOSE 3000
 
-# Step 9: Define the command to run the application using pnpm
-CMD ["pnpm", "run", "start"]
+ENV PORT 3000
+
+CMD ["node", "server.js"]