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Dockerfile.txt

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+# Stage 1: Build the React Application
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+# Copy package.json to install dependencies first (better caching)
+COPY package.json ./
+
+# Install all dependencies (including devDependencies for the build process)
+RUN npm install
+
+# Copy the rest of the application source code
+COPY . .
+
+# Build the frontend assets (Vite will output to /app/dist)
+RUN npm run build
+
+# Stage 2: Setup the Production Server (Node.js)
+FROM node:20-alpine
+
+WORKDIR /app
+
+# Copy package.json again for production dependencies
+COPY package.json ./
+
+# Install ONLY production dependencies (skips devDependencies like Vite/Typescript)
+RUN npm install --omit=dev
+
+# Copy the built frontend assets from the 'builder' stage
+COPY --from=builder /app/dist ./dist
+
+# Copy the server entry point
+COPY server.js ./
+
+# Set environment variables (defaults)
+ENV NODE_ENV=production
+ENV PORT=3000
+
+# Expose the port the app runs on
+EXPOSE 3000
+
+# Start the Node.js server
+CMD ["npm", "start"]