September 2024
Intermediate to advanced
418 pages
12h 16m
Spanish
Content preview from Docker: Up & Running, 3ª Edición
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Capítulo 7. Depuración de contenedores
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Cuando hayas enviado una aplicación a producción, llegará un día en que no funcione como esperabas. Siempre es bueno saber de antemano qué esperar cuando llegue ese día. También es importante conocer bien la depuración de contenedores antes de pasar a implementaciones más complejas. Sin conocimientos de depuración, será difícil ver dónde se han equivocado los sistemas de orquestación. Así que echemos un vistazo a la depuración de contenedores.
Al final, depurar una aplicación en contenedores no es muy distinto de depurar un proceso normal en un sistema, salvo que las herramientas son algo diferentes. Docker proporciona algunas herramientas bastante buenas para ayudarte. Algunas de ellas se corresponden con las herramientas normales del sistema, y otras van más allá.
También es fundamental comprender que tu aplicación no se ejecuta en un sistema separado de los demás procesos Docker. Comparten un núcleo y, dependiendo de la configuración de tu contenedor, pueden compartir otras cosas como un subsistema de almacenamiento e interfaces de red. Esto significa que puedes obtener mucha información del sistema sobre lo que está haciendo tu contenedor.
Si estás acostumbrado a depurar aplicaciones en un entorno VM, podrías pensar que necesitarías entrar en el contenedor para inspeccionar el uso de memoria o CPU de una aplicación, o para ...
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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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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.