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frontend/Dockerfile

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+# Etapa 1: Construcción
+FROM node:24-alpine AS build
+WORKDIR /app
+
+# Argumento para la URL de la API (se pasa desde el docker-compose al construir)
+ARG VITE_API_URL
+ENV VITE_API_URL=$VITE_API_URL
+
+COPY package*.json ./
+RUN npm ci
+
+COPY . .
+RUN npm run build
+
+# Etapa 2: Servidor Web Nginx
+FROM nginx:alpine
+WORKDIR /usr/share/nginx/html
+
+# Limpiar default
+RUN rm -rf ./*
+
+# Copiar build de React
+COPY --from=build /app/dist .
+
+# Copiar configuración de Nginx
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]