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edsonmgoz/Dockerfile

Created February 12, 2026 00:16
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Hello World NodeJS example using NO ROOT user & group
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Dockerfile
FROM node:18-slim
WORKDIR /app
# Crear usuario/grupo NO ROOT
RUN groupadd --gid 10001 appgroup \
&& useradd --uid 10001 --gid 10001 --create-home --home-dir /home/app appuser \
&& chown -R appuser:appgroup /app
# Copiar dependencias
COPY --chown=appuser:appgroup package*.json ./
# Ejecutar como usuario NO ROOT
USER appuser
RUN npm install
# Copiar código fuente
COPY --chown=appuser:appgroup app.js ./
EXPOSE 3000
CMD ["node", "app.js"]
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