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react-runtime-config

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UpdatedApril 17, 2026 at 02:29

Configuracao em runtime e containerizacao para React + Vite + TypeScript: 12-factor config no frontend (runtime e nao build-time), padrao runtime-env.template.js com envsubst gerando runtime-env.js no start do container, window.RUNTIME_ENV como single source of truth, runtimeConfig.ts tipado, Dockerfile multi-stage (Node build + nginx runtime), script entrypoint 40-runtime-env.sh com validacao (falhar cedo), proibido usar import.meta.env para configs entre ambientes. Usar quando: criar/atualizar Dockerfile e pipeline; padronizar variaveis por ambiente; onboarding de novos frontends; PR review de infra/container; configurar deploy sem rebuild.

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