nixos-generators VS nixos-shell

https://github.com/nix-community/nixos-generators

Those Linode instructions are about installing an OS from an installation ISO from Linode's rescue mode. -- I'd consider that more a 'plus' to Linode that you get to be able to install whatever unsupported Linux on Linode's VMs. But, of course it's not as smooth as the officially supported images.

Sibling comment mentions that NixOS provides ways to build VM images (e.g. https://github.com/nix-community/nixos-generators has a generator specifically for Linode).

Another option is to use nixos-infect, which will replace a Linux distribution with a NixOS distribution. https://github.com/elitak/nixos-infect

> At that point, I feel like all of the repeatability gains are gone. If I want to spin up a fresh server, I have to read a guide and set stuff up by hand?

Just as with ansible, "git pull to deploy". You'd keep a copy of your NixOS configuration.nix somewhere else, and would be able to apply it later.

> it really does let me just get a new VPS and deploy to it very fast

Using a tool you're familiar with to get the job done is going to be faster than learning to use a tool you're unfamiliar with.

I believe much of the use of NixOS is for hobby stuff, and for personal machines. (c.f. "In what environments do you use Nix", Development (1242) vs Home Server (845) vs Production (386) https://discourse.nixos.org/t/2022-nix-survey-results/18983).

If you need to generate lxc container in NixOS then perhaps this repo might be useful: https://github.com/nix-community/nixos-generators this article uses it https://www.thedroneely.com/posts/running-nixos-linux-containers/

You might wanna check out nix-community/nixos-generators, it’s maintained by the same dude as Disko

You can look at nixos-generators for support code that well let you take existing configs and build a variety of bootable images from them.

You should take a look at NixOS Generators, it's a flake with configs to build common formats like ISO, LXC, Docker, etc. I use that to generate an ISO with my config, specifically the packages.iso section.

I am trying to make use of https://github.com/nix-community/nixos-generators to generate qcow2 images from a NixOs configuration. Since it will be used with Scaleway, they require an efi bootable image.

I haven't migrated machines from one vm provider to vmware, but I have provided a number of pregenerated nixos images (along the line of https://github.com/nix-community/nixos-generators) to clients to install onto vmware (and other - hyperv, xen, qemu, physical) hosts.

Just found this: https://github.com/Mic92/nixos-shell

There is nixos-shell, but I'm thinking about Windows VM's mostly.

>It doesn't work so well for I borrowed my coworker's computer for 5 minutes and want to use my own Vim configuration

You could use something like nixos-shell[1] to spin up a headless VM of your machine into your current shell.

[1]https://github.com/Mic92/nixos-shell

as mentioned, the Nix docker container isnt a full NixOS system, it's just the nix package manager. If you want to try a quick full NixOS setup I really like https://github.com/Mic92/nixos-shell . It spawns a lightweight NixOS vm in the current shell. No qemu or kvm setup or knowledge required.

For testing stuff you can also use nixos-shell