Dockerfile

# ===============================
# 🐳 Netveris - Docker Setup
# Multi-stage build for optimized production image
# ===============================

# Stage 1: Dependencies & Build
FROM node:20-alpine AS builder
WORKDIR /app

# Install dependencies
COPY package.json package-lock.json* ./
RUN npm ci --legacy-peer-deps

# Copy source and build
COPY . .
RUN npm run build

# Stage 2: Production Runner (using nginx for static files)
FROM nginx:alpine AS runner

# Copy custom nginx config
COPY --from=builder /app/build/client /usr/share/nginx/html

# Copy nginx configuration for SPA routing
RUN echo 'server { \
    listen 3000; \
    server_name localhost; \
    root /usr/share/nginx/html; \
    index index.html; \
    location / { \
        try_files $uri $uri/ /index.html; \
    } \
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2)$ { \
        expires 1y; \
        add_header Cache-Control "public, immutable"; \
    } \
}' > /etc/nginx/conf.d/default.conf

# Expose the port
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:3000/ || exit 1

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