# Build stage FROM node:22-alpine AS builder WORKDIR /app # Copy package files COPY package*.json ./ # Install dependencies RUN npm ci # Copy source code COPY . . # Build the application RUN npm run build # Production stage FROM node:22-alpine AS production WORKDIR /app # Copy built application COPY --from=builder /app/build ./build COPY --from=builder /app/package*.json ./ COPY --from=builder /app/node_modules ./node_modules # Expose port EXPOSE 3000 # Set environment variables ENV NODE_ENV=production ENV PORT=3000 ENV HOST=0.0.0.0 # Start the application CMD ["node", "build"]