# Multi-stage build for React frontend FROM node:24-alpine AS builder WORKDIR /app # Copy package files COPY package*.json ./ # Install dependencies RUN npm ci --only=production # Copy source code COPY . . # Build the application RUN npm run build # Production stage with nginx FROM docker.io/library/nginx:alpine # Copy built application COPY --from=builder /app/build /usr/share/nginx/html # Copy custom nginx config if needed COPY nginx.conf /etc/nginx/conf.d/default.conf # Expose port 80 EXPOSE 80 CMD ["nginx", "-g", "daemon off;"]