January 2026
Intermediate to advanced
392 pages
9h 36m
Spanish
book
Guía de estudio para administrador certificado de Kubernetes (CKA). (Spanish Edition), 2nd Edition
by Benjamin Muschko
Content preview from Guía de estudio para administrador certificado de Kubernetes (CKA). (Spanish Edition), 2nd Edition
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Capítulo 18. Ingresos
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En el capítulo 17 se analizó el propósito y la creación de la primitiva Servicio. Cuando surge la necesidad de exponer la aplicación a consumidores externos, resulta fundamental seleccionar un tipo de servicio adecuado. La opción más práctica suele ser crear un servicio de tipo LoadBalancer. Este tipo de servicio ofrece capacidades de equilibrio de carga mediante la asignación de una dirección IP externa accesible para los consumidores fuera del clúster de Kubernetes.
Sin embargo, optar por un servicio LoadBalancer para cada aplicación accesible desde el exterior tiene sus inconvenientes. En un entorno de proveedor de nube, cada servicio activa el aprovisionamiento de un equilibrador de carga externo, lo que se traduce en un aumento de los costos. Además, la gestión de una colección de objetos de servicio LoadBalancer puede plantear retos administrativos, ya que es necesario crear un nuevo objeto para cada microservicio accesible desde el exterior.
Para mitigar estos problemas, entra en juego la primitiva Ingress, que ofrece un punto de entrada único y con equilibrio de carga a una pila de aplicaciones. Un Ingress tiene la capacidad de enrutar las solicitudes HTTP(S) externas a uno o varios servicios dentro del clúster basándose en un nombre de host opcional resoluble por DNS y una ruta de contexto URL. En este capítulo se te guiará a través ...
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