{"id":555,"date":"2024-07-22T12:28:38","date_gmt":"2024-07-22T12:28:38","guid":{"rendered":"https:\/\/dockerpros.com\/?p=555"},"modified":"2024-07-23T14:08:02","modified_gmt":"2024-07-23T14:08:02","slug":"guide-etape-par-etape-pour-creer-votre-premiere-image-dockerdocker-est-une-plateforme-open-source-qui-permet-de-creer-deployer-et-executer-des-applications-dans-des-conteneurs-les-conteneurs-sont","status":"publish","type":"post","link":"https:\/\/dockerpros.com\/fr\/introduction-to-docker\/step-by-step-guide-to-creating-your-first-docker-image\/","title":{"rendered":"Guide \u00e9tape par \u00e9tape pour cr\u00e9er votre premi\u00e8re image Docker\n\n\u00c9tape 1 : Cr\u00e9er un fichier Dockerfile\n\nLa premi\u00e8re \u00e9tape pour cr\u00e9er une image Docker est de cr\u00e9er un fichier Dockerfile. Ce fichier contient les instructions pour construire l'image. Voici un exemple de fichier Dockerfile simple :\n\n```\nFROM ubuntu:latest\nRUN apt-get update && apt-get install -y nginx\nEXPOSE 80\nCMD [\"nginx\", \"-g\", \"daemon off;\"]\n```\n\nCe Dockerfile utilise l'image Ubuntu la plus r\u00e9cente comme base, installe Nginx, expose le port 80 et d\u00e9marre Nginx au lancement du conteneur.\n\n\u00c9tape 2 : Construire l'image Docker\n\nUne fois que vous avez cr\u00e9\u00e9 votre fichier Dockerfile, vous pouvez construire l'image Docker en utilisant la commande suivante :\n\n```\ndocker build -t my-nginx-image .\n```\n\nCette commande construit une image Docker \u00e0 partir du fichier Dockerfile dans le r\u00e9pertoire courant et la nomme \"my-nginx-image\".\n\n\u00c9tape 3 : V\u00e9rifier l'image Docker\n\nApr\u00e8s avoir construit l'image Docker, vous pouvez v\u00e9rifier qu'elle a \u00e9t\u00e9 cr\u00e9\u00e9e avec succ\u00e8s en utilisant la commande suivante :\n\n```\ndocker images\n```\n\nCette commande affiche une liste de toutes les images Docker sur votre syst\u00e8me, y compris l'image \"my-nginx-image\" que vous venez de cr\u00e9er.\n\n\u00c9tape 4 : Ex\u00e9cuter un conteneur \u00e0 partir de l'image\n\nMaintenant que vous avez cr\u00e9\u00e9 votre image Docker, vous pouvez l'utiliser pour ex\u00e9cuter un conteneur. Voici une commande pour ex\u00e9cuter un conteneur \u00e0 partir de l'image \"my-nginx-image\" :\n\n```\ndocker run -d -p 80:80 my-nginx-image\n```\n\nCette commande ex\u00e9cute un conteneur en arri\u00e8re-plan (-d) et mappe le port 80 du conteneur au port 80 de l'h\u00f4te (-p 80:80).\n\n\u00c9tape 5 : V\u00e9rifier le conteneur en cours d'ex\u00e9cution\n\nVous pouvez v\u00e9rifier que votre conteneur est en cours d'ex\u00e9cution en utilisant la commande suivante :\n\n```\ndocker ps\n```\n\nCette commande affiche une liste de tous les conteneurs en cours d'ex\u00e9cution, y compris le conteneur que vous venez de d\u00e9marrer \u00e0 partir de l'image \"my-nginx-image\".\n\n\u00c9tape 6 : Arr\u00eater et supprimer le conteneur\n\nLorsque vous avez termin\u00e9 d'utiliser votre conteneur, vous pouvez l'arr\u00eater et le supprimer en utilisant les commandes suivantes :\n\n```\ndocker stop \ndocker rm \n```\n\nRemplacez par l'ID du conteneur que vous souhaitez arr\u00eater et supprimer.\n\nConclusion\n\nDans ce tutoriel, vous avez appris \u00e0 cr\u00e9er votre premi\u00e8re image Docker en suivant ces \u00e9tapes simples. Vous pouvez maintenant utiliser cette image pour ex\u00e9cuter des conteneurs et d\u00e9ployer vos applications de mani\u00e8re coh\u00e9rente et efficace."},"content":{"rendered":"

Creating Your First Docker Image: A Comprehensive Guide<\/h1>\n

In the age of cloud computing and microservices, Docker has emerged as a leading platform for creating, deploying, and managing applications in containers. The ability to package applications and their dependencies into a single image<\/a><\/span>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. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> allows for consistent environments across development, testing, and production. In this article, we will explore the process of creating your first Docker image<\/a><\/span>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. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span>, alongside best practices, common pitfalls, and advanced techniques.<\/p>\n

What is Docker?<\/h2>\n

Docker is an open-source platform that automates the deployment of applications inside software containers. A container<\/a><\/span>Containers are lightweight, portable units that encapsulate software and its dependencies, enabling consistent execution across different environments. They leverage OS-level virtualization for efficiency. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> is a lightweight, standalone, executable package that includes everything needed to run<\/a><\/span>\"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. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> a piece of software, including the code, runtime, libraries, and system tools. This encapsulation ensures that the application will run<\/a><\/span>\"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. More \u00bb<\/a><\/span><\/span><\/span><\/span><\/span> reliably in different computing environments.<\/p>\n

Key Concepts<\/h3>\n

Before diving into the creation of Docker images, it is essential to understand some key concepts:<\/p>\n