Dockerfile

# ── Build stage ──────────────────────────────────────────────────────────────
FROM node:20-alpine AS builder

WORKDIR /app

COPY package*.json ./
RUN npm ci --ignore-scripts

COPY . .
RUN npm run build

# ── Production stage ──────────────────────────────────────────────────────────
FROM nginx:alpine AS production

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

# Nginx config for SPA routing
COPY nginx.conf /etc/nginx/conf.d/default.conf

EXPOSE 80

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s \
  CMD wget -qO- http://localhost/health || exit 1

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