docker file mejora, doble stage
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@@ -1,18 +1,16 @@
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# ---------- Etapa de build ----------
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FROM node:18-alpine AS builder
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WORKDIR /app
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COPY package*.json ./
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RUN npm install # incluye TypeScript
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COPY . .
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RUN npm run build # genera /app/dist
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# ---------- Etapa ligera de runtime ----------
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FROM node:18-alpine
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WORKDIR /app
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# 1. Copiamos primero solo package.json para cache
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COPY package.json package-lock.json* ./
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# 2. Instalamos todo (incluye devDependencies como typescript)
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RUN npm install
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# 3. Ahora sí, copiamos el código fuente
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COPY . .
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# 4. Compilamos y luego eliminamos devDependencies
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RUN npm run build && npm prune --production
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# 5. Listo para producción
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COPY --from=builder /app/dist ./dist
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COPY package*.json ./
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RUN npm install --production # solo deps de runtime
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EXPOSE 3000
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CMD ["node", "dist/server.js"]
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