mirror of
https://github.com/nix-community/disko
synced 2024-11-10 06:14:14 +00:00
88 lines
2.6 KiB
Nix
88 lines
2.6 KiB
Nix
{ nixosConfig
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, diskoLib
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, pkgs ? nixosConfig.pkgs
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, name ? "${nixosConfig.config.networking.hostName}-disko-images"
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, extraConfig ? { }
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}:
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let
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lib = pkgs.lib;
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vm_disko = (diskoLib.testLib.prepareDiskoConfig nixosConfig.config diskoLib.testLib.devices).disko;
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cfg_ = (lib.evalModules {
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modules = lib.singleton {
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# _file = toString input;
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imports = lib.singleton { disko.devices = vm_disko.devices; };
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options = {
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disko.devices = lib.mkOption {
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type = diskoLib.toplevel;
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};
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disko.testMode = lib.mkOption {
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type = lib.types.bool;
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default = true;
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};
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};
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};
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}).config;
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disks = lib.attrValues cfg_.disko.devices.disk;
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diskoImages = diskoLib.makeDiskImages {
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nixosConfig = nixosConfig;
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copyNixStore = false;
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extraConfig = {
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disko.devices = cfg_.disko.devices;
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};
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testMode = true;
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};
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rootDisk = {
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name = "root";
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file = ''"$tmp"/${(builtins.head disks).name}.qcow2'';
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driveExtraOpts.cache = "writeback";
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driveExtraOpts.werror = "report";
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deviceExtraOpts.bootindex = "1";
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deviceExtraOpts.serial = "root";
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};
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otherDisks = map
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(disk: {
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name = disk.name;
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file = ''"$tmp"/${disk.name}.qcow2'';
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driveExtraOpts.werror = "report";
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})
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(builtins.tail disks);
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vm = (nixosConfig.extendModules {
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modules = [
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({ modulesPath, ... }: {
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imports = [
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(modulesPath + "/virtualisation/qemu-vm.nix")
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];
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})
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{
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virtualisation.useEFIBoot = nixosConfig.config.disko.tests.efi;
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virtualisation.memorySize = nixosConfig.config.disko.memSize;
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virtualisation.useDefaultFilesystems = false;
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virtualisation.diskImage = null;
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virtualisation.qemu.drives = [ rootDisk ] ++ otherDisks;
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boot.zfs.devNodes = "/dev/disk/by-uuid"; # needed because /dev/disk/by-id is empty in qemu-vms
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boot.zfs.forceImportAll = true;
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}
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{
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# generated from disko config
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virtualisation.fileSystems = cfg_.disko.devices._config.fileSystems;
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boot = cfg_.disko.devices._config.boot or { };
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swapDevices = cfg_.disko.devices._config.swapDevices or [ ];
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}
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nixosConfig.config.disko.tests.extraConfig
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];
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}).config.system.build.vm;
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in
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{
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pure = pkgs.writers.writeDashBin "disko-vm" ''
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set -efux
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export tmp=$(mktemp -d)
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trap 'rm -rf "$tmp"' EXIT
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${lib.concatMapStringsSep "\n" (disk: ''
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${pkgs.qemu}/bin/qemu-img create -f qcow2 \
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-b ${diskoImages}/${disk.name}.raw \
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-F raw "$tmp"/${disk.name}.qcow2
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'') disks}
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set +f
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${vm}/bin/run-*-vm
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'';
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}
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