Generador de Dockerfile & Docker Compose

# Multi-stage Dockerfile para Next.js Standalone
FROM node:20-alpine AS base

# 1. Dependencias
FROM base AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app
RUN npm install -g pnpm
COPY package.json pnpm-lock.yaml* ./
RUN pnpm install --frozen-lockfile

# 2. Builder
FROM base AS builder
WORKDIR /app
RUN npm install -g pnpm
COPY --from=deps /app/node_modules ./node_modules
COPY . .

ENV NEXT_TELEMETRY_DISABLED=1
ENV NODE_ENV=production
RUN pnpm run build

# 3. Runner de Producción
FROM base AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

RUN addgroup --system --gid 1001 nodejs && \
    adduser --system --uid 1001 nextjs

COPY --from=builder /app/public ./public
RUN mkdir .next && chown nextjs:nodejs .next

# Salida standalone optimizada
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs
EXPOSE 3000

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

CMD ["node", "server.js"]