September 2024
Intermediate to advanced
328 pages
9h 8m
Spanish
book
Kubernetes: Up and Running, 3ª Edición
by Brendan Burns, Joe Beda, Kelsey Hightower, Lachlan Evenson
Content preview from Kubernetes: Up and Running, 3ª Edición
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Capítulo 9. ReplicaSets
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Ya hemos explicado cómo ejecutar contenedores individuales como Pods, pero estos Pods son esencialmente monopuestos únicos. La mayoría de las veces, querrás múltiples réplicas de un contenedor ejecutándose en un momento determinado por diversas razones:
- Redundancia
-
Tolerancia de fallos al ejecutar varias instancias.
- Escala
-
Mayor capacidad de procesamiento de peticiones mediante la ejecución de múltiples instancias.
- Fragmentación
-
Diferentes réplicas pueden manejar diferentes partes de un cálculo en paralelo.
Por supuesto, podrías crear manualmente varias copias de un Pod utilizando varios manifiestos de Pod diferentes (aunque en gran medida similares), pero hacerlo es tedioso y propenso a errores. Lógicamente, un usuario que gestiona un conjunto replicado de Pods los considera como una única entidad a definir y gestionar, y eso es precisamente lo que es un ReplicaSet. Un ReplicaSet actúa como un gestor de Pods en todo el clúster, asegurándose de que los tipos y números correctos de Pods se están ejecutando en todo momento.
Dado que los ReplicaSets facilitan la creación y gestión de conjuntos replicados de Pods, son los bloques de construcción para los patrones comunes de implementación de aplicaciones y para las aplicaciones de autorreparación a nivel de infraestructura. Los Pods gestionados por ReplicaSets se reprograman automáticamente ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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