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Este libro está destinado a los es de sistemas, que deseen dominar el despliegue de Kubernetes y entender cómo responde a los nuevos desafíos de la informática, relacionados con la llegada de los contenedores. De esta manera, el lector va a descubrir las diferentes funcionalidades de Kubernetes, que le permitirán gestionar los contenedores y su ciclo de vida, al mismo tiempo que aprende a configurar todos los componentes esenciales de un clúster en un entorno de producción. Para comprender de la mejor manera posible este libro, se recomiendan nociones sobre la istración de un sistema Linux, el principio de funcionamiento de las capas de red, el uso de Git, así como conocimientos de un entorno en Cloud. A lo largo del libro, el autor se basa en ejemplos concretos para ayudar al lector en su descubrimiento de Kubernetes y en la asimilación de los conceptos se se van adquiriendo. Después de instalar el entorno y las herramientas imprescindibles para seguir los ejemplos del libro, el autor familiariza al lector con conceptos propios de Kubernetes, como el ciclo de vida de un contenedor, los pods, los servicios o los es de control. Poco a poco, el lector va a descubrir conceptos más avanzados, como la persistencia de datos, el alojamiento de aplicaciones en clúster, la configuración de replicaciones entre varios pods, el uso de reglas de alta disponibilidad, la gestión de los componentes internos de Kubernetes o el de paquetes Helm. Posteriormente, el autor explica cómo instalar y configurar Kubernetes, para ayudar al lector implementar un clúster, en la nube o en máquinas tradicionales, antes de detallar la exposición de una aplicación en Internet, las políticas de red, la seguridad SSL, los balanceos de carga, la elección de máquinas en la nube o incluso la supervisión de aplicaciones. Para terminar, el lector encontrará en los últimos capítulos una introducción al mallado de servicios con Istio, así como información sobre la gestión de permisos de , sobre la noción de operador o la gestión de la aplicación en un sistema de integración continua.
Traductor
ÁNGEL MARÍA SÁNCHEZ CONEJO