prueba tecnica

docker/Caddyfile

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+:80
+
+root * /usr/share/caddy
+file_server
+
+handle /api/* {
+	reverse_proxy backend:8080
+}
+
+handle {
+	try_files {path} /index.html
+}

docker/backend.Dockerfile

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+FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+WORKDIR /src
+COPY backend/ProximaContracts/ ./
+RUN dotnet restore
+WORKDIR /src/ProximaContracts.API
+RUN dotnet publish -c Release -o /app/publish
+
+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS final
+ENV ASPNETCORE_URLS=http://+:8080
+WORKDIR /app
+COPY --from=build /app/publish .
+EXPOSE 8080
+ENTRYPOINT ["dotnet","ProximaContracts.API.dll"]

docker/frontend.Dockerfile

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+# ---------- build ----------
+FROM node:20-alpine AS build
+WORKDIR /app
+COPY front/contracts-frontend/package*.json ./
+RUN npm ci
+COPY front/contracts-frontend .
+RUN npm run build
+
+# ---------- runtime ----------
+FROM caddy:2-alpine
+COPY --from=build /app/dist /usr/share/caddy
+COPY docker/Caddyfile /etc/caddy/Caddyfile
+EXPOSE 80