6c47e7d5da
Fixes all code blocks with "nix" language in markdown files for syntax errors to be able to run nixfmt in the next step.
1.7 KiB
Building Images with nixos-rebuild build-image
Nixpkgs contains a variety of modules to build custom images for different virtualization platforms and cloud providers, such as e.g. amazon-image.nix and proxmox-lxc.nix.
While those can be imported directly, system.build.images provides an attribute set mapping variant names to image derivations. Available variants are defined - end extendable - in image.modules, an attribute set mapping variant names to NixOS modules.
All of those images can be built via both, their system.build.image attribute and the nixos-rebuild build-image command.
For example, to build an Amazon image from your existing NixOS configuration, run:
$ nixos-rebuild build-image --image-variant amazon
[...]
Done. The disk image can be found in /nix/store/[hash]-nixos-image-amazon-25.05pre-git-x86_64-linux/nixos-image-amazon-25.05pre-git-x86_64-linux.vpc
To get a list of all variants available, run nixos-rebuild build-image without arguments.
::: {.example #ex-nixos-rebuild-build-image-customize}
Customize specific image variants
The image.modules option can be used to set specific options per image variant, in a similar fashion as specialisations for generic NixOS configurations.
E.g. images for the cloud provider Linode use grub2 as a bootloader by default. If you are using systemd-boot on other platforms and want to disable it for Linode only, you could use the following options:
{
image.modules.linode = {
boot.loader.systemd-boot.enable = lib.mkForce false;
};
}