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libguestfs
library and tools for accessing and modifying virtual machine disk images. PLEASE DO NOT USE GITHUB FOR ISSUES OR PULL REQUESTS. See the website for how to file a bug or contact us.
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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
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terraform-provider-libvirt
Terraform provider to provision infrastructure with Linux's KVM using libvirt
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QEMU
Official QEMU mirror. Please see https://www.qemu.org/contribute/ for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website.
Yes:
Are both original Xbox emulators built off of QEMU. I've only used Xemu, but performance was pretty good for the games I tried on it (it doesn't have a way to upscale rendering yet though).
Yes:
Are both original Xbox emulators built off of QEMU. I've only used Xemu, but performance was pretty good for the games I tried on it (it doesn't have a way to upscale rendering yet though).
There's a lot of useful command-line tooling for KVM and QEMU-based virt. Here's a small selection of useful tools:
• virsh — This[1] is libvirt's shell interface; and gives you access to the rich set of libvirt APIs.
• virt-builder — Use this for rapidly building minimal or customized virtual machines; it's greatly flexible; check out its man page[2]. And here's[3] a quick example that connects both virt-builder and virsh together.
• virt-install — Use this if you don't like the default build of the template images from virt-builder; it lets you create "headless" servers via 'kickstart' and Linux OS trees from the command-line.
• guestfish and libguestfs suite[4] — This rich set of tools help you in a variety of use-cases: repairing your broken disk images, editing, cloning, debugging disk images, and more. It has saved my behind a lot of times.
• qemu-img[5] – This Swiss Army knife lets you powerfully manipulate disk images (QCOW2, raw, et al) offline. Example operations include: create images, backing chains, offline snapshots, disk image merging, and convert disk images from one format to another, and more.
[1] https://libvirt.org/manpages/virsh.html
[2] https://libguestfs.org/virt-builder.1.html
[3] https://developer.fedoraproject.org/tools/virt-builder/about...
[5] https://qemu.readthedocs.io/en/latest/tools/qemu-img.html
There's an app that wraps QEMU called UTM. It's open source but also you can pay $10 and get it on the app store.
I have had a lot of trouble with machines getting corrupted, not working at all, locking up, but I did get a Debian machine working that runs ARM Linux on my Macbook Air M1.
HVF works with some patches that are on the mailing list; it's possible to get Nix to build it with an overlay. [1] for the base, then apply [2] to SLIRP if you don't want to use HVF's network adapter (which needs root). I'm happily running FreeBSD and Linux VMs on my Mac Mini with this
[1]: https://github.com/benpye/nix-config/tree/main/overlays/qemu
[2]: https://gitlab.freedesktop.org/slirp/libslirp/-/commit/72713...
https://blog.ruanbekker.com/blog/2020/10/08/using-the-libvir...
I include the blog link because there is some nuance in how to get the path right for community Terraform providers that aren't in the Hashicorp registry. The documentation on the GitHub project isn't quite up to date with respect to how the latest versions of Terraform expect the plugin paths to be set up.
I've done this pretty successfully with all the major Linux distros minus Arch, which requires some bootstrapping to get an iso that Packer can work with (no such thing as an answers file for Arch). It's not that big a deal, though. Just find some instructions on how to create and mount a cloud-init iso in addition to the installer iso and use that to add an ssh public key so you can script the installation steps externally. I actually think Packer can do this, but I just haven't gotten it to work yet and have relied on shell scripts.
Hyper-V actually has a very comprehensive PowerShell module that is pretty well documented, by the way: https://docs.microsoft.com/en-us/powershell/module/hyper-v/?.... I've found it pretty easy to use and actually got the Arch auto-provision working on Hyper-V in Windows before I got it working in KVM in Linux.
Another thing is you can just use the cloud images and cloud-init for bootstrapping everything pretty easily, even on-prem. cloud-init has a "no cloud" config option, as mentioned above, where you just mount an iso with the config data as a DVD drive and cloud-init will find it automatically when the distro iso boots.
This guy has a pretty comprehensive example of how to set up a kubernetes homelab entirely using the libvirt Terraform provider from Ubuntu cloud images bootstrapped with cloud-init: https://github.com/zloeber/k8s-lab-terraform-libvirt
