{"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":"come-dockerizzare-unapplicazione-ferroviaria-esistente","status":"publish","type":"post","link":"https:\/\/www.railscarma.com\/it\/blog\/come-dockerizzare-unapplicazione-ferroviaria-esistente\/","title":{"rendered":"Come dockerizzare un&#039;applicazione Rails esistente?"},"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;\">Uno sviluppatore curioso e un appassionato di tecnologia, non perdere mai l&#039;occasione di imparare qualcosa di nuovo ogni giorno! Questa voglia di imparare \u00e8 qualcosa a cui NOI possiamo relazionarci. In questo post te lo mostreremo <\/span><b>come dockerizzare un&#039;applicazione rails<\/b><span style=\"font-weight: 400;\"> con l&#039;aiuto di Rails Docker Compose. Abbiamo bisogno di Docker, quindi dovresti sapere cos&#039;\u00e8 e perch\u00e9 \u00e8 necessario.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Iniziamo con lo sviluppo e la dockerizzazione delle app.<\/span><\/p>\n<h2><b>Cos&#039;\u00e8 Docker?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Utilizzando <a href=\"https:\/\/en.wikipedia.org\/wiki\/Docker_(software)\">Docker<\/a>, \u00e8 possibile creare un pacchetto di un servizio o di un&#039;applicazione con tutte le relative dipendenze in un&#039;unit\u00e0 standardizzata. Per questo tipo di unit\u00e0 viene generalmente utilizzata un&#039;immagine Docker.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sono inclusi tutti i componenti necessari per eseguire l&#039;applicazione. Le immagini Docker contengono codice, runtime, librerie e qualsiasi altra cosa che installeresti su un server per farle funzionare senza Docker.<\/span><\/p>\n<h2><b>Cosa rende Docker diverso da una macchina virtuale<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Potresti aver eseguito una macchina virtuale utilizzando Vagrant, VirtualBox o VMWare. Nonostante siano in grado di isolare i servizi, le macchine virtuali sono molto meno efficienti a causa di alcune differenze significative.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Per ogni applicazione che desideri isolare, \u00e8 necessario un intero sistema operativo guest. Anche le macchine virtuali possono impiegare molti secondi per avviarsi e ciascuna pu\u00f2 avere dimensioni fino a un gigabyte.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Un contenitore Docker condivide il kernel del tuo host e l&#039;isolamento viene ottenuto tramite gruppi e altre librerie del kernel. A causa della natura leggera di Docker, un contenitore viene generalmente avviato in pochi millisecondi e non richiede molto spazio su disco per essere eseguito.<\/span><\/p>\n<h2><b>Qual \u00e8 il risultato finale?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Non sarebbe fantastico se potessi sviluppare il tuo <a href=\"https:\/\/www.railscarma.com\/it\/sviluppo-di-applicazioni-per-binari-personalizzati\/\">Applicazione delle rotaie<\/a> sulla tua workstation in isolamento senza utilizzare RVM o Chruby e cambiare le versioni di Ruby \u00e8 stato semplice?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Non sarebbe fantastico se potessi isolare tutto ci\u00f2 di cui hai bisogno per ciascuno dei tuoi progetti 10 Rails senza sprecare prezioso spazio di archiviazione SSD?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Non sarebbe fantastico se potessi avviare il tuo stack Rails, PostgreSQL, Redis e Sidekiq in pochi secondi?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Riesci a immaginare se potessi condividere il tuo progetto su GitHub e altri <a href=\"https:\/\/www.railscarma.com\/it\/assumere-ruby-on-rails-sviluppatore\/\">sviluppatori<\/a> potrebbe far funzionare tutto in pochi minuti eseguendo un solo comando?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Grazie a Docker, tutte queste cose sono possibili.<\/span><\/p>\n<h2><b>I vantaggi dell&#039;utilizzo di Docker<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Se Docker offre cinque vantaggi chiave che miglioreranno la produttivit\u00e0 dello sviluppo software e l&#039;esperienza complessiva:<\/span><\/p>\n<h4><strong>1. Coerenza tra gli ambienti<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">La tua applicazione pu\u00f2 essere incapsulata con Docker in modo che possa essere facilmente spostata tra ambienti. Tutti gli ambienti e le macchine in grado di eseguire Docker saranno in grado di eseguirlo.<\/span><\/p>\n<h4><strong>2. Modi semplici per espandere il tuo team di sviluppo<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">Un nuovo sviluppatore non dovrebbe leggere un documento di 30 pagine per imparare come eseguire la tua applicazione localmente. \u00c8 probabile che i nuovi sviluppatori commettano errori durante questo processo, che pu\u00f2 richiedere tutto il giorno o pi\u00f9.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Puoi automatizzare, rendere ripetibile e distribuire in modo efficiente la tua applicazione multiservizio nel tuo team con Docker. Alcuni comandi dopo, tutto funziona.<\/span><\/p>\n<h4><strong>3. Scegli una tecnologia adatta alle tue esigenze<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">Potresti metterti in una posizione di svantaggio come startup o come negozio che utilizza una sola lingua. Puoi sperimentare nuovi linguaggi e framework come sviluppatore isolando un&#039;applicazione in un contenitore Docker.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">La tecnologia che preferisci non deve pi\u00f9 essere impostata da altri sviluppatori. Possono eseguire un&#039;immagine Docker che gli consegni.<\/span><\/p>\n<h4><strong>4. Distribuisci la tua immagine pi\u00f9 volte costruendola una volta<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">L&#039;immagine Docker predefinita consente di avviare le tue applicazioni in millisecondi. Di conseguenza, la scalabilit\u00e0 \u00e8 molto semplice.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00c8 necessario eseguire attivit\u00e0 dispendiose in termini di tempo solo una volta in fase di compilazione, come l&#039;installazione delle dipendenze. Non appena l&#039;immagine viene creata, puoi spostarla su host diversi.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Oltre a rendere le tue distribuzioni pi\u00f9 prevedibili e resilienti, questo ti aiuta a scalare rapidamente le tue implementazioni.<\/span><\/p>\n<h4><span style=\"font-weight: 400;\"><strong>5. I responsabili operativi e gli sviluppatori possono lavorare insieme<\/strong><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Sviluppatori e responsabili operativi possono collaborare con il set di strumenti di Docker per distribuire applicazioni.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Un&#039;astrazione \u00e8 fornita da Docker. Un&#039;applicazione pu\u00f2 essere distribuita e non \u00e8 necessario che un altro team sappia come impostarla o configurarla.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Inoltre, diventa pi\u00f9 semplice distribuire le immagini Docker pubblicamente o privatamente. Man mano che vengono rilasciate nuove versioni, puoi tenere traccia di ci\u00f2 che \u00e8 cambiato.<\/span><\/p>\n<h2><strong>I prerequisiti<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">\u00c8 necessario installare Docker. Puoi eseguire Docker sulla maggior parte delle principali distribuzioni Linux e ci sono strumenti che ti consentono di eseguirlo anche su OSX e Windows.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Gli utenti Linux trarranno vantaggio da questo tutorial, ma gli utenti OSX e Windows troveranno commenti quando \u00e8 necessario modificare le cose.<\/span><\/p>\n<h3><strong>Installazione della finestra mobile<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Puoi seguire una delle guide di installazione riportate di seguito in base al tuo 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 e Mac: https:\/\/www.docker.com\/products\/docker-desktop<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Si consiglia di avere installato Docker e di aver completato l&#039;esempio hello world da una delle guide di installazione sopra riportate prima di procedere.<\/span><\/p>\n<h3><b>Conclusione<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">La containerizzazione di una produzione <a href=\"https:\/\/www.railscarma.com\/it\/sviluppo-di-applicazioni-per-binari-personalizzati\/\">Applicazione delle rotaie<\/a> comporta una serie di sfide, come sicuramente saprai. Potresti aver accumulato una serie di dipendenze man mano che la tua applicazione \u00e8 cresciuta, rendendo impegnativa una migrazione come questa. Non importa se si tratta di un lavoratore in background, di un mailer o di un segreto, esistono modelli consolidati per gestire la maggior parte delle insidie. La facilit\u00e0 delle modifiche e delle implementazioni future render\u00e0 utile l&#039;investimento una volta completato il lavoro iniziale per far funzionare un&#039;applicazione di produzione 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\">Articoli correlati<\/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=\"Giunzioni in Rails: Guida completa all&#039;interfaccia di interrogazione dei record attivi\" href=\"https:\/\/www.railscarma.com\/it\/blog\/rails-joins-a-complete-guide-to-active-record-query-interface\/?related_post_from=41226\">\r\n\r\n      <img decoding=\"async\" width=\"800\" height=\"300\" 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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\/it\/blog\/modernizing-legacy-platforms-using-ruby-on-rails\/\"> <span class=\"screen-reader-text\">Modernizzare le piattaforme legacy usando Ruby on Rails<\/span> Leggi altro \"<\/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\/it\/blog\/come-dockerizzare-unapplicazione-ferroviaria-esistente\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Dockerize an existing Rails application? 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