clan-core/nixosModules/clanCore/vm.nix

65 lines
2.0 KiB
Nix

{ lib, config, pkgs, options, extendModules, modulesPath, ... }:
let
vmConfig = extendModules {
modules = [
(modulesPath + "/virtualisation/qemu-vm.nix")
];
};
in
{
options = {
clan.virtualisation = {
cores = lib.mkOption {
type = lib.types.ints.positive;
default = 1;
description = lib.mdDoc ''
Specify the number of cores the guest is permitted to use.
The number can be higher than the available cores on the
host system.
'';
};
memorySize = lib.mkOption {
type = lib.types.ints.positive;
default = 1024;
description = lib.mdDoc ''
The memory size in megabytes of the virtual machine.
'';
};
graphics = lib.mkOption {
type = lib.types.bool;
default = true;
description = lib.mdDoc ''
Whether to run QEMU with a graphics window, or in nographic mode.
Serial console will be enabled on both settings, but this will
change the preferred console.
'';
};
};
};
config = {
system.clan.vm = {
# for clan vm inspect
config = {
inherit (config.clan.virtualisation) cores graphics;
memory_size = config.clan.virtualisation.memorySize;
};
# for clan vm create
create = pkgs.writeText "vm.json" (builtins.toJSON {
initrd = "${vmConfig.config.system.build.initialRamdisk}/${vmConfig.config.system.boot.loader.initrdFile}";
toplevel = vmConfig.config.system.build.toplevel;
regInfo = (pkgs.closureInfo { rootPaths = vmConfig.config.virtualisation.additionalPaths; });
inherit (config.clan.virtualisation) memorySize cores graphics;
});
};
virtualisation = lib.optionalAttrs (options.virtualisation ? cores) {
memorySize = lib.mkDefault config.clan.virtualisation.memorySize;
graphics = lib.mkDefault config.clan.virtualisation.graphics;
cores = lib.mkDefault config.clan.virtualisation.cores;
};
};
}