Create Dockerfile

Dockerfile

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+# Stage 1: Build the application
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+# Copy package files first to leverage Docker cache for dependencies
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install
+
+# Copy the rest of the application source code
+COPY . .
+
+# Build the application (outputs to /app/dist)
+RUN npm run build
+
+# Stage 2: Serve the application using Nginx
+FROM nginx:alpine
+
+# Remove default nginx static assets
+RUN rm -rf /usr/share/nginx/html/*
+
+# Copy the built React app from the builder stage to Nginx's serve directory
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+# Expose port 80 to the outside world
+EXPOSE 80
+
+# Start Nginx
+CMD ["nginx", "-g", "daemon off;"]