September 2025
Intermediate to advanced
484 pages
15h 6m
Spanish
Content preview from Creación de microservicios basados en eventos, 2nd Edition
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Capítulo 15. Microservicios utilizando funciones como servicio
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Las funciones como servicio (FaaS) son otra forma de construir microservicios. Son una solución sin servidor para construir, gestionar y desplegar aplicaciones mediante bloques de construcción de funciones, y aportan un valor significativo como medio de implementar soluciones basadas en eventos de relativamente sencillas a modestamente complejas.
Una función es un fragmento de código que se ejecuta cuando se produce una condición desencadenante específica. La función se inicia, se ejecuta hasta completarse y luego termina. El marco FaaS suele proporcionar el escalado, el estado y el monitoreo, así como la solicitud y liberación de recursos informáticos. Las soluciones FaaS pueden escalar fácilmente el número de ejecuciones de funciones hacia arriba y hacia abajo dependiendo de la carga, proporcionando un seguimiento cercano para cargas muy variables.
Puede ser útil pensar en una solución FaaS como una implementación básica de consumidor/productor, pero que se detiene de forma regular y predecible después de un tiempo predeterminado. En muchos sentidos, una solución FaaS es como un microservicio que se bloquea cada pocos minutos, pero que almacena sus datos en un almacén de datos externo y simplemente puede retomarlos donde los dejó cuando se reinicia.
¿Por qué utilizar las Funciones como Servicio?
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