{"id":1336,"date":"2024-07-23T12:21:47","date_gmt":"2024-07-23T12:21:47","guid":{"rendered":"https:\/\/dockerpros.com\/?post_type=glossary&#038;p=1336"},"modified":"2024-07-23T12:23:55","modified_gmt":"2024-07-23T12:23:55","slug":"dockerfile-memory","status":"publish","type":"glossary","link":"https:\/\/dockerpros.com\/fr\/wiki\/dockerfile-memory\/","title":{"rendered":"Dockerfile \u2013memory"},"content":{"rendered":"<h1>Comprendre <code>--m\u00e9moire<\/code> Option in Docker: A Deep Dive<\/h1>\n<h2>Introduction<\/h2>\n<p>In the world of containerization, Docker has become a frontrunner, allowing developers to package applications in isolated environments. One crucial aspect of managing these containers is resource allocation, particularly memory management. The <code>--m\u00e9moire<\/code> option in Docker provides a powerful mechanism for setting memory limits on containers, impacting performance, stability, and resource utilization. This article explores the <code>--m\u00e9moire<\/code> drapeau dans Docker, offrant une compr\u00e9hension approfondie de sa fonctionnalit\u00e9, ses applications pratiques, les bonnes pratiques et les pi\u00e8ges courants.<\/p>\n<h2>What is the <code>--m\u00e9moire<\/code> Option ?<\/h2>\n<p>The <code>--m\u00e9moire<\/code> option allows users to specify the maximum amount of memory that a Docker <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> peut utiliser. En imposant des limites \u00e0 la consommation de m\u00e9moire, Docker garantit que les conteneurs ne monopolisent pas les ressources syst\u00e8me, ce qui est particuli\u00e8rement important dans les environnements multi-locataires. Cette fonctionnalit\u00e9 peut aider \u00e0 pr\u00e9venir les conditions de m\u00e9moire insuffisante (OOM), o\u00f9 une utilisation excessive de la m\u00e9moire peut entra\u00eener une instabilit\u00e9 du syst\u00e8me ou des plantages d'applications.<\/p>\n<h3>Syntax<\/h3>\n<p>La syntaxe de base pour utiliser le <code>--m\u00e9moire<\/code> option during the creation of a Docker <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> est la suivante :<\/p>\n<pre><code class=\"language-bash\">docker <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/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\/fr\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> --m\u00e9moire= <\/code><\/pre>\n<p>Where \u201c can be specified in various formats, such as:<\/p>\n<ul>\n<li><code>512m<\/code> pour 512 m\u00e9gaoctets<\/li>\n<li><code>2g<\/code> for 2 gigabytes<\/li>\n<li><code>1 g<\/code> pour 1 gigaoctet<\/li>\n<\/ul>\n<h2>Comment fonctionne la gestion de la m\u00e9moire dans Docker\n\nLa gestion de la m\u00e9moire est un aspect crucial du fonctionnement de Docker. Docker utilise un syst\u00e8me de contr\u00f4le de groupe (cgroups) pour g\u00e9rer les ressources, y compris la m\u00e9moire, allou\u00e9es aux conteneurs. Voici comment cela fonctionne :\n\n1. Limites de m\u00e9moire : Vous pouvez d\u00e9finir des limites de m\u00e9moire pour chaque conteneur \u00e0 l'aide de l'option `--memory` lors de la cr\u00e9ation du conteneur. Par exemple, `--memory=512m` limite le conteneur \u00e0 512 Mo de RAM.\n\n2. \u00c9change : Docker permet \u00e9galement de contr\u00f4ler l'utilisation du fichier d'\u00e9change (swap) pour les conteneurs. Vous pouvez d\u00e9finir une limite d'\u00e9change avec l'option `--memory-swap`. Par exemple, `--memory-swap=1g` permet au conteneur d'utiliser jusqu'\u00e0 1 Go d'espace d'\u00e9change.\n\n3. R\u00e9servation de m\u00e9moire : L'option `--memory-reservation` permet de d\u00e9finir une limite de m\u00e9moire douce. Si le syst\u00e8me d\u00e9tecte une p\u00e9nurie de m\u00e9moire, il peut tuer les conteneurs qui d\u00e9passent cette limite.\n\n4. Partage de m\u00e9moire : Docker utilise le noyau Linux pour partager la m\u00e9moire entre les conteneurs. Cela permet une utilisation plus efficace de la m\u00e9moire disponible sur l'h\u00f4te.\n\n5. Surveillance : Docker fournit des outils pour surveiller l'utilisation de la m\u00e9moire des conteneurs. Vous pouvez utiliser la commande `docker stats` pour voir l'utilisation actuelle de la m\u00e9moire de tous les conteneurs en cours d'ex\u00e9cution.\n\n6. Nettoyage : Lorsque vous arr\u00eatez un conteneur, Docker lib\u00e8re automatiquement la m\u00e9moire qui lui \u00e9tait allou\u00e9e. Cependant, il est important de noter que les images de conteneur et les volumes persistants peuvent toujours occuper de l'espace disque.\n\n7. Limites du syst\u00e8me : Il est important de se rappeler que les limites de m\u00e9moire que vous d\u00e9finissez pour les conteneurs ne peuvent pas d\u00e9passer la m\u00e9moire physique disponible sur l'h\u00f4te.\n\nEn comprenant et en utilisant efficacement ces fonctionnalit\u00e9s de gestion de la m\u00e9moire, vous pouvez optimiser les performances de vos conteneurs Docker et \u00e9viter les probl\u00e8mes li\u00e9s \u00e0 la m\u00e9moire.<\/h2>\n<p>Docker utilizes the Linux kernel\u2019s cgroups (control groups) to enforce resource limits, including memory. When the <code>--m\u00e9moire<\/code> option is set, Docker creates a cgroup that limits the container&#8217;s memory usage to the specified value. If the <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> attempts to exceed this limit, the kernel takes action based on its memory management policies.<\/p>\n<h3>Memory Management Policies<\/h3>\n<p>Docker peut r\u00e9pondre \u00e0 la surconsommation de m\u00e9moire de plusieurs fa\u00e7ons :<\/p>\n<ul>\n<li>\n<p><strong>Tueur OOM<\/strong>: When a <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> exceeds its memory limit, the kernel may terminate processes within the <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> using the Out-Of-Memory (OOM) killer. This ensures that the host system remains stable but can lead to abrupt termination of services.<\/p>\n<\/li>\n<li>\n<p><strong>Swapping<\/strong>: By default, when containers hit their memory limits, they may swap memory to disk. However, it is generally not advisable to rely on swap in production environments due to performance degradation.<\/p>\n<\/li>\n<\/ul>\n<h3>Hi\u00e9rarchies des limites de m\u00e9moire<\/h3>\n<p>Docker permet de d\u00e9finir diff\u00e9rents types de limites de m\u00e9moire.<\/p>\n<ul>\n<li>\n<p><code>--m\u00e9moire<\/code> (soft limit): This is the maximum amount of memory the <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> can use. If the limit is reached, the <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> may be throttled or killed.<\/p>\n<\/li>\n<li>\n<p><code>--m\u00e9moire-d'\u00e9change<\/code> (hard limit): This sets the total amount of memory and swap (virtual memory) available to the <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>. The value of <code>--m\u00e9moire-d'\u00e9change<\/code> must always be equal to or greater than <code>--m\u00e9moire<\/code>.<\/p>\n<\/li>\n<\/ul>\n<h2>Practical Use Cases for the <code>--m\u00e9moire<\/code> drapeau<\/h2>\n<h3>1. Optimisation des performances<\/h3>\n<p>Dans les applications multi-conteneurs ou les architectures de microservices, l'optimisation des limites de m\u00e9moire peut conduire \u00e0 une am\u00e9lioration des performances globales. Lorsque les conteneurs ont des limites de m\u00e9moire appropri\u00e9es, ils peuvent fonctionner efficacement sans affecter les performances des autres.<\/p>\n<h3>2. Preventing Resource Contention<\/h3>\n<p>Resource contention can degrade the performance of applications running on the same host. By specifying memory limits, developers can prevent one <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> from consuming excessive memory and ensure fair access to system resources.<\/p>\n<h3>3. Enhancing Stability<\/h3>\n<p>Pour les applications critiques, le maintien de la stabilit\u00e9 du syst\u00e8me est primordial. Les limites de m\u00e9moire peuvent aider \u00e0 pr\u00e9venir les situations o\u00f9 la consommation excessive de m\u00e9moire d'un seul conteneur entra\u00eene des plantages ou une instabilit\u00e9 dans d'autres syst\u00e8mes ou conteneurs.<\/p>\n<h2>Setting Memory Limits: Best Practices<\/h2>\n<h3>1. Analyze Memory Usage Patterns<\/h3>\n<p>Avant de d\u00e9finir des limites de m\u00e9moire, analysez les mod\u00e8les d'utilisation de la m\u00e9moire de vos applications. Des outils tels que <code>docker stats<\/code>, Prometheus, Grafana, or APM tools can provide insights into how much memory is typically consumed.<\/p>\n<h3>2. Set Conservative Limits Initially<\/h3>\n<p>Au d\u00e9marrage, il est recommand\u00e9 de d\u00e9finir des limites de m\u00e9moire conservatrices. En surveillant le comportement de l'application sous charge, vous pouvez ajuster progressivement ces limites. Cette approche it\u00e9rative minimise les risques d'arr\u00eats par manque de m\u00e9moire (OOM).<\/p>\n<h3>Utiliser <code>--m\u00e9moire-d'\u00e9change<\/code> Sagement<\/h3>\n<p>The <code>--m\u00e9moire-d'\u00e9change<\/code> l'option vous permet de d\u00e9finir la m\u00e9moire totale et l'espace d'\u00e9change. Envisagez de d\u00e9finir cette valeur pour qu'elle corresponde \u00e0 l'utilisation de la m\u00e9moire de votre application tout en gardant les performances \u00e0 l'esprit. Par exemple, si votre application n\u00e9cessite 1 Go de m\u00e9moire, vous pouvez d\u00e9finir <code>--m\u00e9moire<\/code> to <code>1 g<\/code> and <code>--m\u00e9moire-d'\u00e9change<\/code> to <code>2g<\/code>.<\/p>\n<h3>4. Utilisez les v\u00e9rifications de sant\u00e9<\/h3>\n<p>Incorporate health checks into your containers, allowing Docker to monitor the state of your applications. If a <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> becomes unhealthy due to memory constraints, you can take automated recovery actions (e.g., restart the <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>).<\/p>\n<h3>5. Testez sous charge<\/h3>\n<p>Tester vos applications conteneuris\u00e9es dans des conditions de charge simul\u00e9e peut vous aider \u00e0 d\u00e9terminer les limites m\u00e9moire id\u00e9ales. Utilisez des outils comme Apache JMeter ou Locust pour les tests de charge afin d'observer comment votre application se comporte avec diff\u00e9rents param\u00e8tres m\u00e9moire.<\/p>\n<h2>Pi\u00e8ges courants<\/h2>\n<h3>1. Fixer des Limites Trop Bas<\/h3>\n<p>La d\u00e9finition de limites de m\u00e9moire trop basses peut entra\u00eener de mauvaises performances de l'application et des tueries OOM fr\u00e9quentes. Assurez-vous toujours que les limites sont inform\u00e9es par une analyse approfondie.<\/p>\n<h3>2. Ignoring Swap Configuration<\/h3>\n<p>Failing to configure swap effectively can lead to application failures under memory strain. Always consider how swap can play a role in your memory strategy, but use it with caution.<\/p>\n<h3>3. Neglecting Multi-Container Environments<\/h3>\n<p>Dans les environnements multi-conteneurs, n\u00e9gliger de d\u00e9finir des limites de m\u00e9moire pour tous les conteneurs peut entra\u00eener une contention des ressources. Il est essentiel d'adopter une approche holistique de la gestion des ressources dans l'ensemble de votre application. <span class=\"glossaryai-tooltip glossary-term-682\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/stack\/\" target=\"_blank\">pile<\/a><\/span><span class=\"gai-content-hidden glossaryai-tooltip-content\"><span class=\"gai-tooltip-body\"><span class=\"glossaryai-tooltip-text\">Une pile est une structure de donn\u00e9es qui fonctionne selon le principe du dernier entr\u00e9, premier sorti (LIFO), o\u00f9 l'\u00e9l\u00e9ment le plus r\u00e9cemment ajout\u00e9 est le premier \u00e0 \u00eatre retir\u00e9. Elle prend en charge deux op\u00e9rations principales : empiler et d\u00e9piler.<span class=\"glossaryai-more-link\"> <a href=\"https:\/\/dockerpros.com\/fr\/wiki\/stack\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>.<\/p>\n<h3>4. Overlooking Development vs. Production Settings<\/h3>\n<p>What works well in development may not translate effectively to production. Ensure that memory limits are refined based on realistic production workloads.<\/p>\n<h2>Monitoring and Managing Memory Usage<\/h2>\n<h3>Tools and Techniques<\/h3>\n<p>Pour g\u00e9rer efficacement l'utilisation de la m\u00e9moire dans les conteneurs Docker, envisagez d'utiliser les outils et techniques suivants :<\/p>\n<ul>\n<li>\n<p><strong>Statistiques Docker<\/strong>Le <code>docker stats<\/code> command provides a real-time view of resource usage by running containers, including memory consumption.<\/p>\n<\/li>\n<li>\n<p><strong>Prometheus et Grafana<\/strong>: Ces outils peuvent \u00eatre int\u00e9gr\u00e9s pour fournir une surveillance et une visualisation compl\u00e8tes de l'utilisation de la m\u00e9moire au fil du temps.<\/p>\n<\/li>\n<li>\n<p><strong>cAdvisor<\/strong>: This tool provides <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> resource usage analytics and monitoring, focusing on performance and resource consumption.<\/p>\n<\/li>\n<li>\n<p><strong>Journaux et alertes<\/strong>: Implement logging mechanisms to capture memory usage data and set up alerts for when containers approach their memory limits.<\/p>\n<\/li>\n<\/ul>\n<h2>Conclusion<\/h2>\n<p>The <code>--m\u00e9moire<\/code> option in Docker is a powerful tool for managing memory resources within containers. Understanding how to effectively use this option can lead to optimized application performance, enhanced stability, and better resource utilization. By adopting best practices, staying aware of common pitfalls, and leveraging the right monitoring tools, developers can ensure that their containerized applications <span class=\"glossaryai-tooltip glossary-term-672\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/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\/fr\/wiki\/run\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> efficiently and reliably.<\/p>\n<p>As containers continue to become a predominant feature in modern application development, mastering memory management will play an essential role in effective DevOps practices. By carefully setting and monitoring memory limits, organizations can create robust, scalable, and high-performing containerized applications ready to meet the demands of today\u2019s dynamic environments.<\/p>","protected":false},"excerpt":{"rendered":"<p>The `\u2013memory` flag in Docker enables users to limit the memory available to a <span class=\"glossaryai-tooltip glossary-term-650\"><span class=\"glossaryai-link\"><a href=\"https:\/\/dockerpros.com\/fr\/wiki\/container\/\" target=\"_blank\">conteneur<\/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\/fr\/wiki\/container\/\">More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, am\u00e9liorant la gestion des ressources et \u00e9vitant une utilisation excessive de la m\u00e9moire qui pourrait affecter les performances de l'h\u00f4te.<\/p>","protected":false},"author":1,"featured_media":1985,"parent":0,"template":"","glossary-cat":[],"class_list":["post-1336","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dockerfile -memory - 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\/fr\/wiki\/dockerfile-memory\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dockerfile -memory - 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