cloud-init
Un outil qui configure une VM neuve au premier démarrage : nom d'hôte, utilisateurs, clés SSH et paquets.
Cloud images for Ubuntu, Debian and others include cloud-init. In Proxmox you can attach a cloud-init drive to a template so new VMs come up pre-configured, making them reproducible and fast to deploy.
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Virtual Machine(VM)
A software-based computer that runs its own operating system on top of physical hardware via a hypervisor.
Hypervisor
Software that creates and manages virtual machines by allocating physical resources between them.
Headless
A server that runs without a monitor, keyboard or graphical desktop.