{"id":168,"date":"2024-07-21T11:56:35","date_gmt":"2024-07-21T11:56:35","guid":{"rendered":"https:\/\/dockerpros.com\/?p=168"},"modified":"2024-07-21T11:56:35","modified_gmt":"2024-07-21T11:56:35","slug":"que-son-los-contenedores-efimeros-en-docker","status":"publish","type":"post","link":"https:\/\/dockerpros.com\/es\/introduction-to-docker\/what-are-ephemeral-containers-in-docker\/","title":{"rendered":"What are ephemeral containers in Docker?"},"content":{"rendered":"<h1>Understanding Ephemeral Containers in Docker<\/h1>\n<p>In the world of containerization, Docker has emerged as a dominant player, revolutionizing the way applications are developed, shipped, and deployed. Among its many features, ephemeral containers are a relatively newer concept that has garnered interest due to their potential to simplify debugging and enhance development workflows. This article delves into what ephemeral containers are in Docker, their use cases, benefits, and how they differ from traditional containers.<\/p>\n<h2>Los contenedores ef\u00edmeros son un nuevo tipo de contenedor que se puede adjuntar temporalmente a un pod existente para fines de depuraci\u00f3n. Los contenedores ef\u00edmeros carecen de puertos o almacenamiento, por lo que no se pueden usar para ejecutar aplicaciones.<\/h2>\n<p>Los contenedores ef\u00edmeros son contenedores temporales que existen \u00fanicamente por un breve per\u00edodo, t\u00edpicamente para fines de depuraci\u00f3n o soluci\u00f3n de problemas. Est\u00e1n dise\u00f1ados para <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">run<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> Sin almacenamiento persistente y no est\u00e1n dise\u00f1ados para sobrevivir m\u00e1s all\u00e1 de una sola sesi\u00f3n. Cuando un servicio ef\u00edmero se activa, se cierra autom\u00e1ticamente despu\u00e9s de que finaliza la sesi\u00f3n. <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> Se crea,no interfiere con el estado de los contenedores existentes y puede utilizarse para inspeccionar o interactuar con el entorno de la aplicaci\u00f3n.<\/p>\n<p>El t\u00e9rmino \"ef\u00edmero\" indica que estos contenedores son fugaces; una vez cumplido su prop\u00f3sito, pueden ser terminados sin ning\u00fan efecto residual en el sistema. Esto los hace particularmente \u00fatiles para escenarios donde los desarrolladores o operadores necesitan un entorno r\u00e1pido y desechable para realizar tareas sin alterar los contenedores de la aplicaci\u00f3n principal.<\/p>\n<h2>Use Cases of Ephemeral Containers<\/h2>\n<p>Los casos de uso principales para los contenedores ef\u00edmeros giran en torno a la necesidad de entornos temporales para pruebas, depuraci\u00f3n o la realizaci\u00f3n de tareas administrativas. Aqu\u00ed hay algunos escenarios espec\u00edficos donde los contenedores ef\u00edmeros destacan:<\/p>\n<ol>\n<li>\n<p><strong>Depuraci\u00f3n de Aplicaciones<\/strong>: When a containerized application is not behaving as expected, developers can spin up an ephemeral <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> to investigate the issue. This <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> can share the same <span class=\"glossaryai-tooltip glossary-term-661\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/network\/\" target=\"_blank\">red<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Una red, en inform\u00e1tica, es un conjunto de dispositivos interconectados que se comunican y comparten recursos. Permite el intercambio de datos, facilita la colaboraci\u00f3n y mejora la eficiencia operativa.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/network\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> and storage resources as the main <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, allowing developers to <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">run<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> diagnostic commands and scripts in a familiar environment.<\/p>\n<\/li>\n<li>\n<p><strong>Running One-off Tasks<\/strong>: Sometimes, there are tasks that need to be <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">run<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> only once, such as database migrations, data imports, or cleanup activities. Ephemeral containers can be used to perform these tasks without cluttering the environment with containers that are no longer needed after the <span class=\"glossaryai-tooltip glossary-term-683\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/task\/\" target=\"_blank\">tarea<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Una tarea es una pieza espec\u00edfica de trabajo o deber asignado a un individuo o sistema. Aborda objetivos definidos, recursos necesarios y resultados esperados, facilitando el progreso estructurado en diversos contextos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/task\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> Est\u00e1 completo.<\/p>\n<\/li>\n<li>\n<p><strong>Testing Changes<\/strong>: Developers can use ephemeral containers to test changes to their application in a safe environment. For example, if a developer wants to test a new library or dependency, they can create an ephemeral <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> that mimics the production environment without risking the stability of the existing application.<\/p>\n<\/li>\n<li>\n<p><strong>Interactive Shells<\/strong>: The ability to <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">run<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> an interactive shell within an ephemeral <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> is a powerful feature. This allows developers and system administrators to execute commands and scripts directly against the application or its dependencies without the need to SSH into the running <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>.<\/p>\n<\/li>\n<\/ol>\n<h2>Creaci\u00f3n de contenedores ef\u00edmeros\n\nLos contenedores ef\u00edmeros son una caracter\u00edstica de Kubernetes que permite adjuntar un contenedor de depuraci\u00f3n a un Pod en ejecuci\u00f3n. Esta funcionalidad es especialmente \u00fatil para solucionar problemas en Pods que no se pueden reiniciar f\u00e1cilmente o para los que no se dispone de las herramientas de depuraci\u00f3n necesarias.\n\nPara crear un contenedor ef\u00edmero, se utiliza el comando kubectl debug. Este comando crea un nuevo Pod que se adjunta al Pod existente, permitiendo ejecutar comandos y herramientas de depuraci\u00f3n en el contexto del Pod original.\n\nEl proceso de creaci\u00f3n de un contenedor ef\u00edmero implica los siguientes pasos:\n\n1. Identificar el Pod que necesita ser depurado.\n2. Determinar qu\u00e9 herramientas o comandos se necesitan para la depuraci\u00f3n.\n3. Utilizar el comando kubectl debug con los par\u00e1metros apropiados para crear el contenedor ef\u00edmero.\n\nEs importante tener en cuenta que los contenedores ef\u00edmeros no persisten despu\u00e9s de que se completa la tarea de depuraci\u00f3n. Una vez que se cierra la sesi\u00f3n de depuraci\u00f3n, el contenedor ef\u00edmero se elimina autom\u00e1ticamente.\n\nLos contenedores ef\u00edmeros son una herramienta poderosa para los desarrolladores y administradores de sistemas que trabajan con Kubernetes, ya que proporcionan una forma r\u00e1pida y conveniente de diagnosticar y resolver problemas en Pods en ejecuci\u00f3n sin necesidad de modificar la configuraci\u00f3n original del Pod.<\/h2>\n<p>Creating ephemeral containers in Docker is straightforward, utilizing the <code>Docker es una plataforma de c\u00f3digo abierto que permite automatizar el despliegue de aplicaciones dentro de contenedores de software. Proporciona una capa adicional de abstracci\u00f3n y automatizaci\u00f3n de virtualizaci\u00f3n a nivel de sistema operativo en Linux.\n\nLos contenedores Docker empaquetan una aplicaci\u00f3n con todas sus dependencias en un formato estandarizado que puede ejecutarse en cualquier entorno Linux. Esto facilita enormemente el desarrollo, el testing y el despliegue de aplicaciones, ya que se eliminan los problemas de \"funciona en mi m\u00e1quina\".\n\nAlgunas de las caracter\u00edsticas clave de Docker son:\n\n- Aislamiento: Cada contenedor se ejecuta de forma aislada, con su propio sistema de archivos, procesos, etc.\n\n- Portabilidad: Los contenedores pueden ejecutarse en cualquier entorno Linux sin necesidad de modificarlos.\n\n- Ligereza: Los contenedores comparten el kernel del sistema operativo anfitri\u00f3n, lo que los hace mucho m\u00e1s ligeros que las m\u00e1quinas virtuales tradicionales.\n\n- Escalabilidad: Es muy f\u00e1cil escalar horizontalmente una aplicaci\u00f3n ejecutando m\u00faltiples instancias de un contenedor.\n\nDocker se ha convertido en una herramienta fundamental en el desarrollo de aplicaciones modernas, especialmente en el contexto de la arquitectura de microservicios y la computaci\u00f3n en la nube. <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">run<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span><\/code> command. Unlike standard containers, which are often managed with persistent volumes and networks, ephemeral containers can be created with little overhead.<\/p>\n<h3>Basic Command Structure<\/h3>\n<p>The basic structure for creating an ephemeral <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> is as follows:<\/p>\n<pre><code class=\"language-bash\">Docker es una plataforma de c\u00f3digo abierto que permite automatizar el despliegue de aplicaciones dentro de contenedores de software. Proporciona una capa adicional de abstracci\u00f3n y automatizaci\u00f3n de virtualizaci\u00f3n a nivel de sistema operativo en Linux.\n\nLos contenedores Docker empaquetan una aplicaci\u00f3n con todas sus dependencias en un formato estandarizado que puede ejecutarse en cualquier entorno Linux. Esto facilita enormemente el desarrollo, el testing y el despliegue de aplicaciones, ya que se eliminan los problemas de \"funciona en mi m\u00e1quina\".\n\nAlgunas de las caracter\u00edsticas clave de Docker son:\n\n- Aislamiento: Cada contenedor se ejecuta de forma aislada, con su propio sistema de archivos, procesos, etc.\n\n- Portabilidad: Los contenedores pueden ejecutarse en cualquier entorno Linux sin necesidad de modificarlos.\n\n- Ligereza: Los contenedores comparten el kernel del sistema operativo anfitri\u00f3n, lo que los hace mucho m\u00e1s ligeros que las m\u00e1quinas virtuales tradicionales.\n\n- Escalabilidad: Es muy f\u00e1cil escalar horizontalmente una aplicaci\u00f3n ejecutando m\u00faltiples instancias de un contenedor.\n\nDocker se ha convertido en una herramienta fundamental en el desarrollo de aplicaciones modernas, especialmente en el contexto de la arquitectura de microservicios y la computaci\u00f3n en la nube. <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">run<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --rm -it  <\/code><\/pre>\n<ul>\n<li><code>--rm<\/code>: Automatically removes the <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> once it exits.<\/li>\n<li><code>-ello<\/code>: Runs the <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> in interactive mode, allowing you to interact with it through the terminal.<\/li>\n<li>\u201cEl nombre de Docker. <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">An image is a visual representation of an object or scene, typically composed of pixels in digital formats. It can convey information, evoke emotions, and facilitate communication across various media.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> quieres usar.\n.<\/li>\n<li>&#8220;: The command you want to execute inside the <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>.<\/li>\n<\/ul>\n<p>For example, to <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">run<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> an interactive shell in an ephemeral <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> based on the <code>ubuntu<\/code> <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">An image is a visual representation of an object or scene, typically composed of pixels in digital formats. It can convey information, evoke emotions, and facilitate communication across various media.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, ejecutar\u00edas:<\/p>\n<pre><code class=\"language-bash\">Docker es una plataforma de c\u00f3digo abierto que permite automatizar el despliegue de aplicaciones dentro de contenedores de software. Proporciona una capa adicional de abstracci\u00f3n y automatizaci\u00f3n de virtualizaci\u00f3n a nivel de sistema operativo en Linux.\n\nLos contenedores Docker empaquetan una aplicaci\u00f3n con todas sus dependencias en un formato estandarizado que puede ejecutarse en cualquier entorno Linux. Esto facilita enormemente el desarrollo, el testing y el despliegue de aplicaciones, ya que se eliminan los problemas de \"funciona en mi m\u00e1quina\".\n\nAlgunas de las caracter\u00edsticas clave de Docker son:\n\n- Aislamiento: Cada contenedor se ejecuta de forma aislada, con su propio sistema de archivos, procesos, etc.\n\n- Portabilidad: Los contenedores pueden ejecutarse en cualquier entorno Linux sin necesidad de modificarlos.\n\n- Ligereza: Los contenedores comparten el kernel del sistema operativo anfitri\u00f3n, lo que los hace mucho m\u00e1s ligeros que las m\u00e1quinas virtuales tradicionales.\n\n- Escalabilidad: Es muy f\u00e1cil escalar horizontalmente una aplicaci\u00f3n ejecutando m\u00faltiples instancias de un contenedor.\n\nDocker se ha convertido en una herramienta fundamental en el desarrollo de aplicaciones modernas, especialmente en el contexto de la arquitectura de microservicios y la computaci\u00f3n en la nube. <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">run<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --rm -it ubuntu \/bin\/bash<\/code><\/pre>\n<p>This command pulls the <code>ubuntu<\/code> <span class=\"glossaryai-tooltip glossary-term-651\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\" target=\"_blank\">imagen<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">An image is a visual representation of an object or scene, typically composed of pixels in digital formats. It can convey information, evoke emotions, and facilitate communication across various media.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/image\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> (if not already available locally), starts a new <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, and provides an interactive terminal session. Once you exit this shell, the <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> is removed automatically.<\/p>\n<h2>Diferencias entre contenedores ef\u00edmeros y tradicionales\n\nLos contenedores ef\u00edmeros son una caracter\u00edstica de Kubernetes que permite adjuntar temporalmente un contenedor a un pod existente para fines de depuraci\u00f3n o soluci\u00f3n de problemas. A diferencia de los contenedores tradicionales, que forman parte de la especificaci\u00f3n del pod y se reinician si fallan, los contenedores ef\u00edmeros son temporales y no persisten despu\u00e9s de que se completa su tarea.\n\nLos contenedores ef\u00edmeros se ejecutan en el mismo espacio de nombres de red y vol\u00famenes que los contenedores existentes del pod, lo que permite a los desarrolladores y administradores acceder al mismo entorno que las aplicaciones en ejecuci\u00f3n. Esto facilita la depuraci\u00f3n de problemas que pueden ser dif\u00edciles de reproducir en un entorno de desarrollo local.\n\nOtra diferencia importante es que los contenedores ef\u00edmeros no requieren modificar la especificaci\u00f3n del pod o reconstruir la imagen del contenedor. Esto significa que se pueden agregar r\u00e1pidamente a un pod en ejecuci\u00f3n sin afectar la aplicaci\u00f3n principal. Adem\u00e1s, los contenedores ef\u00edmeros pueden ejecutarse con privilegios elevados, lo que permite realizar tareas de administraci\u00f3n del sistema que normalmente no estar\u00edan disponibles para los contenedores de la aplicaci\u00f3n.\n\nEn resumen, mientras que los contenedores tradicionales son parte integral de la arquitectura de la aplicaci\u00f3n y se gestionan a trav\u00e9s de la especificaci\u00f3n del pod, los contenedores ef\u00edmeros son una herramienta de diagn\u00f3stico temporal que proporciona acceso directo al entorno de ejecuci\u00f3n de la aplicaci\u00f3n sin modificar su configuraci\u00f3n base.<\/h2>\n<p>Comprender las distinciones entre los contenedores ef\u00edmeros y los contenedores tradicionales es crucial para utilizar Docker de manera efectiva en sus flujos de trabajo de desarrollo y operaciones. Aqu\u00ed hay algunas diferencias clave:<\/p>\n<h3>Gesti\u00f3n del Ciclo de Vida<\/h3>\n<ul>\n<li><strong>Ephemeral Containers<\/strong>: Dise\u00f1ados para ser de corta duraci\u00f3n. Comienzan, sirven su prop\u00f3sito y luego terminan, sin expectativa de persistencia.<\/li>\n<li><strong>Recipientes tradicionales<\/strong>: Often meant to <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\" target=\"_blank\">run<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">\"RUN\" refers to a command in various programming languages and operating systems to execute a specified program or script. It initiates processes, providing a controlled environment for task execution.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> long-term or indefinitely. They might involve persistent data, state management, and continuous services.<\/li>\n<\/ul>\n<h3>Data Persistence<\/h3>\n<ul>\n<li><strong>Ephemeral Containers<\/strong>: Do not retain any data after they have stopped. There is no concern for data loss because the container\u2019s lifecycle is temporary.<\/li>\n<li><strong>Recipientes tradicionales<\/strong>: Frequently utilize volumes or bind mounts to persist data across restarts, allowing for data retention and continuity.<\/li>\n<\/ul>\n<h3>Utilizaci\u00f3n de Recursos<\/h3>\n<ul>\n<li><strong>Ephemeral Containers<\/strong>: Generally consume fewer resources since they are only active for a brief period. When they finish their <span class=\"glossaryai-tooltip glossary-term-683\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/task\/\" target=\"_blank\">tarea<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Una tarea es una pieza espec\u00edfica de trabajo o deber asignado a un individuo o sistema. Aborda objetivos definidos, recursos necesarios y resultados esperados, facilitando el progreso estructurado en diversos contextos.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/task\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, they free up the resources they used.<\/li>\n<li><strong>Recipientes tradicionales<\/strong>Pueden acumular uso de recursos con el tiempo, especialmente si no se gestionan adecuadamente. Pueden requerir monitoreo y mantenimiento regular.<\/li>\n<\/ul>\n<h3>Use Cases<\/h3>\n<ul>\n<li><strong>Ephemeral Containers<\/strong>: Best suited for one-time tasks, debugging, and testing environments. They facilitate rapid experimentation without long-term implications.<\/li>\n<li><strong>Recipientes tradicionales<\/strong>: Ideal para ejecutar aplicaciones persistentes, microservicios y entornos donde el estado y los datos son esenciales.<\/li>\n<\/ul>\n<h2>Beneficios de usar contenedores ef\u00edmeros<\/h2>\n<p>Ephemeral containers offer a range of benefits that enhance development, testing, and operations. Here are some of the key advantages:<\/p>\n<h3>1. Rapid Development Cycle<\/h3>\n<p>Al permitir a los desarrolladores crear y destruir contenedores r\u00e1pidamente, los contenedores ef\u00edmeros facilitan un proceso de desarrollo m\u00e1s \u00e1gil. Los cambios pueden probarse y depurarse en entornos aislados sin afectar proyectos en curso.<\/p>\n<h3>2. Depuraci\u00f3n simplificada<\/h3>\n<p>Ephemeral containers provide a straightforward mechanism for debugging issues without the need for complex setups. Developers can quickly spin up an environment that mirrors production, execute diagnostic commands, and inspect logs.<\/p>\n<h3>3. Reducci\u00f3n del desorden\n\nEl desorden es un problema com\u00fan en muchos hogares y oficinas. Puede ser abrumador y estresante, y puede dificultar la concentraci\u00f3n y la productividad. Afortunadamente, hay muchas maneras de reducir el desorden y crear un ambiente m\u00e1s organizado y tranquilo.\n\nUna de las formas m\u00e1s efectivas de reducir el desorden es deshacerse de las cosas que ya no necesitas o usas. Esto puede incluir ropa vieja, libros que ya has le\u00eddo, muebles que ya no te gustan, y cualquier otra cosa que est\u00e9 ocupando espacio innecesariamente. Puedes donar estas cosas a organizaciones ben\u00e9ficas o venderlas en l\u00ednea para ganar algo de dinero extra.\n\nOtra forma de reducir el desorden es organizar tus pertenencias de manera m\u00e1s eficiente. Esto puede incluir usar cajas de almacenamiento, estantes y cajones para mantener las cosas ordenadas y f\u00e1ciles de encontrar. Tambi\u00e9n puedes etiquetar tus pertenencias para que sepas exactamente d\u00f3nde est\u00e1 todo.\n\nFinalmente, es importante mantener un horario regular de limpieza y organizaci\u00f3n. Esto puede incluir dedicar unos minutos cada d\u00eda a ordenar y limpiar, o programar una limpieza m\u00e1s profunda una vez a la semana. Al mantener un horario regular, puedes evitar que el desorden se acumule y mantener tu hogar u oficina organizados y tranquilos.<\/h3>\n<p>With automatic removal upon exit, ephemeral containers help keep the Docker environment clean and organized. There is no need to manage or manually delete containers, reducing overhead and potential confusion.<\/p>\n<h3>4. Enhanced Security<\/h3>\n<p>Since ephemeral containers are temporary and do not retain state, they can minimize security risks associated with long-lived containers. By limiting the amount of time sensitive operations take place, the attack surface is reduced.<\/p>\n<h3>5. Fomento de las Mejores Pr\u00e1cticas<\/h3>\n<p>El uso de contenedores ef\u00edmeros promueve las mejores pr\u00e1cticas en la containerizaci\u00f3n. Se anima a los desarrolladores a adoptar una mentalidad de entornos desechables, lo que puede conducir a arquitecturas de aplicaci\u00f3n m\u00e1s limpias y modulares.<\/p>\n<h2>Desaf\u00edos y Consideraciones<\/h2>\n<p>Si bien los contenedores ef\u00edmeros ofrecen varias ventajas, existen desaf\u00edos y consideraciones a tener en cuenta:<\/p>\n<h3>1. Persistencia limitada<\/h3>\n<p>Debido a su naturaleza transitoria, los contenedores ef\u00edmeros no proporcionan persistencia de datos. Para las aplicaciones que requieren retenci\u00f3n de estado, es necesaria una planificaci\u00f3n cuidadosa para garantizar que los datos se gestionen de manera apropiada.<\/p>\n<h3>2. Limitaciones de Recursos<\/h3>\n<p>El uso excesivo de contenedores ef\u00edmeros puede generar contenci\u00f3n de recursos, especialmente en entornos con recursos limitados. Es fundamental supervisar y gestionar la asignaci\u00f3n de recursos para evitar cuellos de botella.<\/p>\n<h3>3. Complejidad en las redes\n\nThe complexity of networking is a major challenge for many organizations. As networks grow in size and complexity, it becomes increasingly difficult to manage and maintain them. This can lead to a number of problems, including:\n\n- Increased costs: As networks become more complex, they require more resources to manage and maintain. This can lead to increased costs for hardware, software, and personnel.\n\n- Reduced performance: Complex networks can be slower and less reliable than simpler networks. This can lead to reduced productivity and increased downtime.\n\n- Increased security risks: Complex networks are more difficult to secure than simpler networks. This can lead to increased security risks, such as data breaches and malware infections.\n\n- Difficulty in troubleshooting: Complex networks can be difficult to troubleshoot when problems occur. This can lead to longer downtime and increased costs.\n\nTo address these challenges, organizations need to adopt a more strategic approach to networking. This includes:\n\n- Planning: Organizations need to carefully plan their networks to ensure that they are scalable, secure, and easy to manage.\n\n- Standardization: Organizations should standardize their networking equipment and software to reduce complexity and improve manageability.\n\n- Automation: Organizations should automate as many networking tasks as possible to reduce the workload on IT staff.\n\n- Monitoring: Organizations should monitor their networks closely to identify and address problems quickly.\n\n- Training: Organizations should provide training to IT staff to ensure that they have the skills and knowledge needed to manage complex networks.\n\nBy adopting these strategies, organizations can reduce the complexity of their networks and improve their overall performance and security.<\/h3>\n<p>Ephemeral containers typically operate in isolation, which can complicate networking configurations. Understanding how to share <span class=\"glossaryai-tooltip glossary-term-661\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/network\/\" target=\"_blank\">red<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Una red, en inform\u00e1tica, es un conjunto de dispositivos interconectados que se comunican y comparten recursos. Permite el intercambio de datos, facilita la colaboraci\u00f3n y mejora la eficiencia operativa.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/network\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> resources securely and effectively is essential.<\/p>\n<h3>4. Dependency Management<\/h3>\n<p>Al utilizar contenedores ef\u00edmeros para pruebas, es crucial garantizar que las dependencias est\u00e9n representadas con precisi\u00f3n. Los entornos desalineados pueden provocar discrepancias entre el desarrollo y la producci\u00f3n.<\/p>\n<h2>Conclusi\u00f3n<\/h2>\n<p>Los contenedores ef\u00edmeros representan una evoluci\u00f3n significativa en el ecosistema Docker, permitiendo a los desarrolladores y operadores crear entornos temporales para depuraci\u00f3n, pruebas y tareas administrativas. Su naturaleza transitoria, junto con la facilidad de creaci\u00f3n y limpieza autom\u00e1tica, los convierte en una herramienta poderosa en las pr\u00e1cticas modernas de DevOps.<\/p>\n<p>Al comprender los casos de uso, los beneficios y los desaf\u00edos asociados con los contenedores ef\u00edmeros, los equipos pueden aprovechar eficazmente esta funci\u00f3n para mejorar sus flujos de trabajo, minimizar el desorden y optimizar el ciclo de desarrollo. Si bien el concepto de contenedores ef\u00edmeros a\u00fan puede estar en evoluci\u00f3n, sin duda constituye una adici\u00f3n valiosa al kit de herramientas de Docker, reforzando la idea de que en el mundo de la contenedorizaci\u00f3n, la flexibilidad y la eficiencia son primordiales. <\/p>\n<p>As the Docker ecosystem continues to grow, keeping abreast of such features will empower organizations to innovate and adapt their applications, ensuring they remain at the forefront of technology.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ephemeral containers in Docker are temporary instances designed for debugging and testing. They allow developers to inspect running applications without altering the original <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\" target=\"_blank\">contenedor<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/es\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>.<\/p>","protected":false},"author":1,"featured_media":400,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-168","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-introduction-to-docker"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What are ephemeral containers in Docker? - Dockerpros<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dockerpros.com\/es\/introduccion-a-docker\/que-son-los-contenedores-efimeros-en-docker\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are ephemeral containers in Docker? - Dockerpros\" \/>\n<meta property=\"og:description\" content=\"Ephemeral containers in Docker are temporary instances designed for debugging and testing. 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