October 2024
Intermediate to advanced
270 pages
8h 13m
Spanish
Content preview from 97 cosas que todo programador Java debe saber
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Capítulo 4. Sé consciente de tu entorno de contenedores
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David Delabassee
Existe un peligro al contenerizar aplicaciones Java heredadas tal cual, con su máquina virtual Java (JVM) heredada, porque la ergonomía de esas JVM antiguas se verá engañada al ejecutarse dentro de contenedores Docker .
Los contenedores se han convertido en el mecanismo de empaquetado en tiempo de ejecución de facto. Ofrecen muchas ventajas: un cierto nivel de aislamiento, una mejor utilización de los recursos, la posibilidad de desplegar aplicaciones en distintos entornos, y mucho más. Los contenedores también ayudan a reducir el acoplamiento entre una aplicación y la plataforma subyacente, ya que esa aplicación puede empaquetarse en un contenedor portátil. Esta técnica se utiliza a veces para modernizar aplicaciones heredadas. En el caso de Java, un contenedor empaqueta una aplicación Java heredada junto con sus dependencias, incluida una versión antigua de la JVM utilizada por esa aplicación.
La práctica de contenerizar las aplicaciones Java heredadas con sus entornos puede ciertamente ayudar a mantener las aplicaciones antiguas funcionando en infraestructuras modernas y compatibles, al desacoplarlas de infraestructuras antiguas y no compatibles. Pero los beneficios potenciales de tal práctica ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.