Docker Swarm You use Docker Swarm to host and schedule a cluster of Docker containers. This section introduces you to Docker Swarm by teaching you how to create a swarm on your local machine using Docker Machine and VirtualBox. Prerequisites Make sure your local system has VirtualBox installed. Using the instructions appropriate to your system architecture, install Docker Machine. Create a Docker Swarm Docker Machine gets hosts ready to run Docker containers. Before you create a swarm with docker-machine, you associate each node with a discovery service. List the machines on your system. $ docker-machine ls NAME ACTIVE DRIVER STATE URL SWARM docker-vm * virtualbox Running tcp: This example was run a Mac OSX system with Docker Toolbox installed. Launch the Swarm manager A single system in your network is known as your Docker Swarm manager. Swarm agents are responsible for hosting containers. In this section, you create a swarm manager and two nodes. Create a swarm node. Direct your swarm Where to go next
Docker Alternatives | Aqua In this page, you’ll learn everything you need to know about Docker alternatives You probably heard of the statement ‘Write once, run anywhere’, a catchphrase that SUN Microsystems came out with to capture Java’s ubiquitous nature. This is a great paradigm except that, if you have a java application, for example, in order to run it anywhere you need platform-specific implementations of the Java Virtual Machine. This is where Docker comes in! This approach takes care of several issues: No platform specific, IDE, or programming language restrictions.Small image sizes, making it easier to ship and store.No compatibility issues relating to the dependencies/versions/setup.Quick and easy application instance deployment.Applications and their resources are isolated, leading to better modularity and security. To allow for an application to be self-contained the Docker approach moves up the abstraction of resources from the hardware level to the Operating System level. Linux VServer Linux VServer
[SOLVED] Docker Failed to Start - Docker Desktop for Windows - Docker Desktop for Windows - Docker Community Forums Issue Type: Docker Failed to Start OS Version/Build: Windows 10 - 10.0.18363 Build 18363 App Version: “Client: Docker Engine - Community Cloud integration: 1.0.9 Version: 20.10.5 API version: 1.41 Go version: go1.13.15 Git commit: 55c4c88 Built: Tue Mar 2 20:14:53 2021 OS/Arch: windows/amd64 Context: default Experimental: true” Steps to reproduce: Install Docker and try to run Linux Containers I have Hyper-V checked and WSL installed and running. On install, Docker fails to start (with Linux Containers). But if I switch to Windows Containers, Docker starts without any problems. I’ve tried uninstalling/reinstalling Docker Desktop but doesn’t affect the outcome. It also looks like the “Enable Integration with additional distros:” isn’t working? Any help would be greatly appreciated, I’ve been trying to solve this problem for longer than I care to admit… Crash report - 1A420717-40DD-42DB-9F86-BC539439321E/20210406170617 2 Likes Docker is running now. 5 Likes Worked for me many thanks ! 1 Like
CrossOver 15: Run Windows Software on Mac & Linux | CodeWeavers - All Blogs SaltStack Comment la conteneurisation informatique accélère le développement des applications lundi 28 janvier 2019 - Temps de lecture approximatif : 5 min Depuis quelques années, les conteneurs ont révolutionné l’informatique, car ils transforment la manière de concevoir les applications, permettant ainsi aux développeurs de gagner en productivité. De quelle manière ? C’est ce qu’explique ici Alex Palesandro*, ingénieur cloud chez D2SI, société de conseil spécialisée en cloud et DevOps travaillant en partenariat avec les DSI et les entités digitales pour les accompagner dans leur transformation numérique. Que sont les conteneurs ? Tout comme dans le domaine des transports, les conteneurs informatiques stockent des objets pour les transporter. À quoi servent-ils ? Comment fonctionne la conteneurisation ? La conteneurisation est une méthode qui permet de virtualiser, dans un conteneur, les ressources matérielles ‒ systèmes de fichiers, réseau, processeur, mémoire vive, etc. ‒ nécessaires à l’exécution d’une application. Quelle est sa valeur ajoutée ?
Pasos de instalación manual para versiones anteriores de WSL | Microsoft Learn Por motivos de simplicidad, por lo general se recomienda usar wsl --install para instalar el Subsistema de Windows para Linux, pero si ejecuta una compilación anterior de Windows, es posible que no se admita. Hemos incluido los pasos de instalación manual a continuación. Si experimenta un problema durante el proceso de instalación, consulte la sección de instalación de la guía de solución de problemas. Paso 1: Habilitación del Subsistema de Windows para Linux Antes de instalar distribuciones de Linux en Windows, debe habilitar la característica opcional "Subsistema de Windows para Linux". Abra PowerShell como administrador (menú Inicio > PowerShell > haga clic con el botón derecho en > Ejecutar como administrador) y escriba este comando: dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart Paso 2: comprobación de los requisitos para ejecutar WSL 2 Para actualizar a WSL 2, debe ejecutar Windows 10... o Windows 11. wsl --set-default-version 2 Sugerencia
DevOps Dojo DevOps Team Culture The principles, or kun, that guide martial arts dojos are the same principles at the heart of a thriving DevOps culture: Strive for the perfection of character. Be faithful and protect the way of truth. Endeavor. In the DevOps Dojo we'll exchange ideas for living these values and cultivating cross-team cooperation. DevOps Technical Practices Adopting a tool or technology does not a DevOps organization make. Automation means trading institutional knowledge and printed documentation for versionable, shareable code. In the DevOps Dojo we'll discuss technical practices to consider, and share links to deep-dives from around the web.
Docker comme environnement de développement, ça déchire - Developpeur / integrateur web (Growth Hacker) Docker pour développer c’est excellent. Mais ça sert à quoi Docker ? Et surtout comment cela fonctionne ? Docker (dans notre exemple) va nous permettre d’installer un environnement de dév’ très rapidement. On peut switcher d’une version de PrestaShop à une autre (toujours dans notre exemple). Bref on peut faire énormément de chose avec Docker (tester un environnement, config, CMS, test unitaire, etc …). Comment installer PrestaShop avec Docker ? Copier/coller la totalité des lignes ci-dessous : Il ne restera plus cas faire pointer le « volume » : /var/www/html/themes/ vers /Users/Michael/Documents/docker/prestashop/themes//var/www/html/modules/ vers /Users/Michael/Documents/docker/prestashop/modules//var/www/html/override/ vers /Users/Michael/Documents/docker/prestashop/override/ Oui mais cela sert à quoi ? Mais où trouver les « images » : Sur le site de docker : hub.docker.comDans notre exemple avec PrestaShop v1.7 pour Docker, j’ai utilisé celui-ci : hub.docker.com/r/prestashop/prestashop/
How to Create Django Docker Images | Engineering Education (EngEd) Program | Section Docker is a containerization platform that makes it possible to build, ship, and run distributed applications in controlled environments with defined rules. Prerequisites Have Python 3.6 or newer installed on your computer.Get Python package manager, pip installed on your computer.You will need Docker installed on your computer. For Docker installation, setup, and a quick start, visit Getting started with Docker. Project setup We will be creating a Docker image for the Todo application that we created in this tutorial. Ensure virtualenv is installed on your computer by executing the command below. $ virtualenv --version virtualenv 20.2.2 from /home/username/.local/lib/python3.8/site-packages/virtualenv/__init__.py If you get an error executing the command above, run the command below to install virtualenv on your computer. Create a working directory for the project by executing the command below. Create a virtual environment for our project using the virtualenv module that we just installed.
CCJPE: Plugins Part I Introduction Welcome to the DevOps Library! This is Samantha, and in this lesson we’re going to cover the first half of the open source Jenkins plugins on the CCJPE. We aren’t going to go too in depth because you only need a basic familiarity for the exam, and some of these plugins could take up an entire lesson on their own. Even if you aren’t taking the test we guarantee you’ll want to use at least a couple of these plugins by the end of the lesson. If you’d like to follow along with a preconfigured Jenkins master, we have an AWS cloud config file below with all of the plugins preinstalled. Jenkins Cloud Config Download Alright, let’s go ahead and get started! Amazon EC2 Plugin First up, we have the Amazon EC2 plugin. Let’s imagine we have a set of jobs that collectively take forever to run. Build Pipeline Plugin Next we have the “Build Pipeline Plugin”, which is used to create a view of a basic pipeline, which tends to consist of several upstream and downstream jobs. Copy Artifact Plugin
Docker : introduction aux conteneurs applicatifs | Rémi LEBLOND Qu’est-ce que Docker ? Un porte conteneur applicatif Docker est un système de gestion de conteneurs applicatifs. Un conteneur applicatif peut intégrer tout type d’application fonctionnant sous Linux : tout ce qui s’installe sur un système Linux peut être isolé dans un conteneur Docker. Docker n’est pas un système de virtualisation, mais un système d’isolation applicative. Comme Docker n’est pas un système de virtualisation, il est parfaitement exploitable dans un contexte virtualisé, car il n’ajoute pas son propre hyperviseur. Docker est actuellement uniquement disponible pour les systèmes Linux. Exemple d’application Imaginez que vous vouliez mettre en place un environnement de développement Web. Un serveur Web (NGINX)Un serveur de base de données (PHP)Un serveur PhpMyAdmin, permettant d’administrer le contenu de la base de données. Dans une approche classique, vous installeriez ces trois éléments sur un système Linux classique et feriez en sorte qu’ils cohabitent tous ensemble. docker ps