{"id":37027,"date":"2023-03-01T04:18:16","date_gmt":"2023-03-01T04:18:16","guid":{"rendered":"https:\/\/www.railscarma.com\/?p=37027"},"modified":"2023-04-03T12:44:10","modified_gmt":"2023-04-03T12:44:10","slug":"como-convertir-una-aplicacion-rails-ya-existente-en-una-aplicacion-docker","status":"publish","type":"post","link":"https:\/\/www.railscarma.com\/es\/blog\/como-convertir-una-aplicacion-rails-ya-existente-en-una-aplicacion-docker\/","title":{"rendered":"\u00bfC\u00f3mo Dockerizar una aplicaci\u00f3n Rails existente?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"37027\" class=\"elementor elementor-37027\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-31a7b1e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"31a7b1e\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-767e91d\" data-id=\"767e91d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-27ec54b elementor-widget elementor-widget-text-editor\" data-id=\"27ec54b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Un desarrollador curioso y apasionado por la tecnolog\u00eda, \u00a1que nunca deja pasar la oportunidad de aprender algo nuevo cada d\u00eda! Esa ganas de aprender es algo con lo que NOSOTROS nos identificamos. En esta entrada, te mostraremos <\/span><b>C\u00f3mo implementar una aplicaci\u00f3n Rails en Docker<\/b><span style=\"font-weight: 400;\"> con la ayuda de Rails Docker Compose. Necesitamos Docker, as\u00ed que deber\u00edas saber qu\u00e9 es y por qu\u00e9 es necesario.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Empecemos con el desarrollo de aplicaciones y la \u00abdockerizaci\u00f3n\u00bb.<\/span><\/p>\n<h2><b>\u00bfQu\u00e9 es Docker?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Utilizando <a href=\"https:\/\/en.wikipedia.org\/wiki\/Docker_(software)\">Docker<\/a>, puedes empaquetar un servicio o una aplicaci\u00f3n, junto con todas sus dependencias, en una unidad estandarizada. Para este tipo de unidad se suele utilizar una imagen de Docker.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Se incluyen todos los componentes necesarios para ejecutar la aplicaci\u00f3n. Las im\u00e1genes de Docker contienen c\u00f3digo, entornos de ejecuci\u00f3n, bibliotecas y cualquier otro elemento que se instalar\u00eda en un servidor para que funcionaran sin Docker.<\/span><\/p>\n<h2><b>\u00bfEn qu\u00e9 se diferencia Docker de una m\u00e1quina virtual?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Es posible que hayas ejecutado una m\u00e1quina virtual con Vagrant, VirtualBox o VMware. A pesar de que permiten aislar los servicios, las m\u00e1quinas virtuales son mucho menos eficientes debido a algunas diferencias importantes.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Para cada aplicaci\u00f3n que quieras aislar, necesitas un sistema operativo invitado completo. Adem\u00e1s, las m\u00e1quinas virtuales pueden tardar varios segundos en arrancar, y cada una puede ocupar hasta un gigabyte.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Un contenedor de Docker comparte el n\u00facleo del equipo anfitri\u00f3n, y el aislamiento se consigue mediante grupos y otras bibliotecas del n\u00facleo. Gracias a la ligereza de Docker, un contenedor suele iniciarse en unos pocos milisegundos y no requiere mucho espacio en disco para ejecutarse.<\/span><\/p>\n<h2><b>\u00bfCu\u00e1l es la conclusi\u00f3n?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u00bfNo ser\u00eda estupendo que pudieras desarrollar tu <a href=\"https:\/\/www.railscarma.com\/es\/desarrollo-de-aplicaciones-de-rieles-personalizados\/\">Aplicaci\u00f3n de rieles<\/a> en tu estaci\u00f3n de trabajo de forma aislada, sin utilizar RVM ni Chruby, y cambiar de versi\u00f3n de Ruby fuera sencillo?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00bfNo ser\u00eda estupendo poder aislar todo lo que necesitas para cada uno de tus 10 proyectos de Rails sin malgastar el valioso espacio de almacenamiento del SSD?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00bfNo ser\u00eda estupendo poder poner en marcha tu pila de Rails, PostgreSQL, Redis y Sidekiq en solo unos segundos?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00bfTe imaginas si pudieras compartir tu proyecto en GitHub y en otras <a href=\"https:\/\/www.railscarma.com\/es\/contratar-desarrollador-de-ruby-on-rails\/\">desarrolladores<\/a> \u00bfPodr\u00eda ponerlo todo en marcha en cuesti\u00f3n de minutos con un solo comando?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Gracias a Docker, todo esto es posible.<\/span><\/p>\n<h2><b>Las ventajas de utilizar Docker<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Docker ofrece cinco ventajas clave que mejorar\u00e1n tu productividad en el desarrollo de software y tu experiencia en general:<\/span><\/p>\n<h4><strong>1. Coherencia entre entornos<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">Tu aplicaci\u00f3n se puede encapsular con Docker para que se pueda trasladar f\u00e1cilmente de un entorno a otro. Todos los entornos y m\u00e1quinas compatibles con Docker podr\u00e1n ejecutarla.<\/span><\/p>\n<h4><strong>2. Formas sencillas de ampliar tu equipo de desarrollo<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">Un desarrollador novel no deber\u00eda tener que leer un documento de 30 p\u00e1ginas para aprender a ejecutar tu aplicaci\u00f3n de forma local. Es probable que los desarrolladores noveles cometan errores durante este proceso, que puede llevarles todo el d\u00eda o incluso m\u00e1s tiempo.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Con Docker, puedes implementar tu aplicaci\u00f3n multiservicio de forma automatizada, repetible y eficiente en todo tu equipo. Con solo unos pocos comandos, todo estar\u00e1 en funcionamiento.<\/span><\/p>\n<h4><strong>3. Elige una tecnolog\u00eda que se adapte a tus necesidades<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">Si eres una startup o una tienda que solo utiliza un idioma, podr\u00edas estar poni\u00e9ndote en desventaja. Como desarrollador, puedes experimentar con nuevos lenguajes y marcos de trabajo aislando una aplicaci\u00f3n en un contenedor de Docker.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ya no es necesario que otros desarrolladores configuren la tecnolog\u00eda que elijas. Pueden ejecutar una imagen de Docker que t\u00fa les facilites.<\/span><\/p>\n<h4><strong>4. Implementa tu imagen varias veces tras compilarla una sola vez<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">La imagen de Docker preconfigurada permite iniciar tus aplicaciones en milisegundos. Gracias a ello, la escalabilidad resulta muy sencilla.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Las tareas que requieren mucho tiempo, como la instalaci\u00f3n de dependencias, solo es necesario ejecutarlas una vez durante la compilaci\u00f3n. En cuanto se haya compilado la imagen, podr\u00e1s trasladarla a diferentes servidores.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Adem\u00e1s de hacer que tus implementaciones sean m\u00e1s predecibles y resistentes, esto te permite ampliar o reducir la capacidad r\u00e1pidamente.<\/span><\/p>\n<h4><span style=\"font-weight: 400;\"><strong>5. Los responsables de operaciones y los desarrolladores pueden trabajar juntos<\/strong><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Los desarrolladores y los responsables de operaciones pueden colaborar utilizando el conjunto de herramientas de Docker para implementar aplicaciones.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Docker proporciona una abstracci\u00f3n. Una aplicaci\u00f3n puede distribuirse sin que otro equipo tenga que saber c\u00f3mo instalarla o configurarla.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Adem\u00e1s, resulta m\u00e1s f\u00e1cil distribuir im\u00e1genes de Docker, tanto de forma p\u00fablica como privada. A medida que se publican nuevas versiones, puedes hacer un seguimiento de los cambios introducidos.<\/span><\/p>\n<h2><strong>Los requisitos previos<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Es necesario instalar Docker. Docker se puede ejecutar en la mayor\u00eda de las principales distribuciones de Linux, y existen herramientas que permiten ejecutarlo tambi\u00e9n en OS X y Windows.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Los usuarios de Linux sacar\u00e1n partido de este tutorial, pero los de OS X y Windows encontrar\u00e1n indicaciones sobre los ajustes que deben realizar.<\/span><\/p>\n<h3><strong>Instalaci\u00f3n de Docker<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Puedes seguir una de las gu\u00edas de instalaci\u00f3n que aparecen a continuaci\u00f3n, seg\u00fan tu sistema operativo:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Linux: https:\/\/docs.docker.com\/get-started\/<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Windows y Mac: https:\/\/www.docker.com\/products\/docker-desktop<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Se recomienda que tengas instalado Docker y que hayas completado el ejemplo \u00abhello world\u00bb de una de las gu\u00edas de instalaci\u00f3n anteriores antes de continuar.<\/span><\/p>\n<h3><b>Conclusi\u00f3n<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">La contenedorizaci\u00f3n de un entorno de producci\u00f3n <a href=\"https:\/\/www.railscarma.com\/es\/desarrollo-de-aplicaciones-de-rieles-personalizados\/\">Aplicaci\u00f3n de rieles<\/a> Esto conlleva una serie de retos, como sin duda ya sabr\u00e1s. Es posible que, a medida que tu aplicaci\u00f3n ha ido creciendo, hayas acumulado una serie de dependencias, lo que hace que una migraci\u00f3n como esta resulte complicada. No importa si se trata de un proceso en segundo plano, un sistema de correo electr\u00f3nico o un secreto: existen patrones consolidados para sortear la mayor\u00eda de los escollos. La facilidad con la que se podr\u00e1n realizar cambios e implementaciones en el futuro har\u00e1 que la inversi\u00f3n merezca la pena una vez completado el trabajo inicial de adaptar una aplicaci\u00f3n en producci\u00f3n para que funcione con Docker.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t  <div class=\"related-post slider\">\r\n        <div class=\"headline\">Art\u00edculos Relacionados<\/div>\r\n    <div class=\"post-list owl-carousel\">\r\n\r\n            <div class=\"item\">\r\n            <div class=\"thumb post_thumb\">\r\n    <a  title=\"Ruby on Rails para MLOps: Gu\u00eda completa para el despliegue de ML\" href=\"https:\/\/www.railscarma.com\/es\/blog\/ruby-on-rails-for-mlops-a-complete-guide-to-ml-deployment\/?related_post_from=41350\">\r\n\r\n      <img decoding=\"async\" width=\"800\" height=\"300\" 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<\/div>","protected":false},"excerpt":{"rendered":"<p>A curious developer and tech enthusiast, never miss an opportunity to learn something new every day! This urge to learn is something WE can relate to. In this post, we&#8217;ll show you how to dockerize a rails application with help from Rails Docker Compose. We need Docker, so you should know what it is and &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.railscarma.com\/es\/blog\/como-crear-una-plataforma-saas-escalable-utilizando-ruby-on-rails\/\"> <span class=\"screen-reader-text\">C\u00f3mo crear una plataforma SaaS escalable con Ruby on Rails<\/span> Leer m\u00e1s \u00bb<\/a><\/p>","protected":false},"author":1,"featured_media":37032,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1224],"tags":[],"class_list":["post-37027","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Dockerize an existing Rails application? - Railscarma<\/title>\n<meta name=\"description\" content=\"From this article, you&#039;ll learn how to dockerize an existing Ruby on Rails application to make development faster and easier.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.railscarma.com\/es\/blog\/como-convertir-una-aplicacion-rails-ya-existente-en-una-aplicacion-docker\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Dockerize an existing Rails application? 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