Manage CPU and Memory Resources for LXD Linux VMs

In this video, we explore how you can allocate CPU and memory resources to virtual machines running with LXD under Linux. Since LXD version 5.8 (November 2022), you can hot-plug CPUs from virtual machines, both adding and removing. As of today, memory cannot be hot-added to LXD virtual machines; you must shutdown the VM before adding memory, otherwise you'll receive an error. The "lxc config" command gives you direct control over the number of CPU cores and RAM allocated to each LXD virtual machine.
As a bonus, we also take a look at LXD nested virtualization in action. You can run LXD virtual machines on top of other LXD virtual machines, providing flexibility over how you deploy infrastructure.
Quick Summary
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➡️ LXD supports hot-plugging CPUs
➡️ LXD does NOT support hot-plugging memory
➡️ LXD supports nested virtualization
➡️ The "lxc config" command can change VM or LXD daemon settings
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[@TrevorSullivan]

Here's a playlist dedicated to LXD! ruclips.net/p/PLDbRgZ0OOEpX_uqK_hAq98ltdc4DP-D34

[@marcosoliveira8731]

Great info!

[@symshark]

The whole nesting lxd within lxd vm is intense. I've planning using lxd as my main virtualization solution, in the past I've used esxi and virtualbox. I do plan to use what am learning with rust to automate deployment of an lxd environment for my home lab, thanks for lxd videos aswell!

[@TrevorSullivan]

Very cool!! Try to think about building a LXD library or tool that other people can use in their environments. 🙂

[@DanielSullivanWI]

Good, basic info on re-sizing cores/memory

[@kaijisan1206]

liked and commented