update the dockerfile

Dockerfile

@@ -1,25 +1,36 @@
-
-FROM node:18-alpine
-
-RUN mkdir -p /app
+FROM node:18-alpine AS build
 
 WORKDIR /app
 
-COPY package.json ./
+# Copy package files first for better layer caching
+COPY package.json package-lock.json* ./
 
-RUN npm install
-
-RUN npm install --save-dev
-
-
-COPY . /app
-
-# Build the Next.js app  
-RUN npm run build  
-
-# Expose the port the app will run on  
-EXPOSE 3000  
+# Install dependencies
+RUN npm ci
 
+# Copy the rest of the application
 COPY . .
 
-CMD ["npm", "run", "dev"]
+# Build the application
+RUN npm run build
+
+# Production stage
+FROM node:18-alpine AS production
+
+WORKDIR /app
+
+# Copy only the built assets and necessary files from the build stage
+COPY --from=build /app/dist ./dist
+COPY --from=build /app/package.json ./
+
+# Install only production dependencies
+RUN npm ci --omit=dev
+
+# Expose the port Vite uses by default
+EXPOSE 5173
+
+# Use a static file server for production builds
+RUN npm install -g serve
+
+# Serve the built application
+CMD ["serve", "-s", "dist", "-l", "5173"]