Dockerfile

# Multi-stage build for production optimization
# Stage 1: Build the React application
FROM node:22-alpine AS builder

# Set the working directory in the container
WORKDIR /app

# Copy package files for dependency installation
COPY package*.json ./

# Install all dependencies (including devDependencies needed for build)
RUN npm ci --silent

# Copy source code
COPY . .

# Build the React application for production
RUN npm run build

# Stage 2: Serve with nginx
FROM nginx:alpine

# Copy built application from builder stage
COPY --from=builder /app/dist /usr/share/nginx/html

# Copy custom nginx configuration for better performance
COPY nginx.conf /etc/nginx/conf.d/default.conf

# Expose port 80 for web traffic
EXPOSE 80

# Start nginx server
CMD ["nginx", "-g", "daemon off;"]