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135 lines
3.9 KiB
Nix
135 lines
3.9 KiB
Nix
{ system ? builtins.currentSystem
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, config ? { }
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, pkgs ? import ../.. { inherit system config; }
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}:
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with import ../lib/testing-python.nix { inherit system pkgs; };
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with pkgs.lib;
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let
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# A testScript fragment that prepares a disk with some empty, unpartitioned
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# space. and uses it to boot the test with. Takes a single argument `machine`
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# from which the diskImage is extraced.
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useDiskImage = machine: ''
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import os
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import shutil
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import subprocess
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import tempfile
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tmp_disk_image = tempfile.NamedTemporaryFile()
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shutil.copyfile("${machine.system.build.diskImage}/nixos.img", tmp_disk_image.name)
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subprocess.run([
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"${pkgs.qemu}/bin/qemu-img",
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"resize",
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"-f",
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"raw",
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tmp_disk_image.name,
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"+32M",
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])
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# Fix the GPT table by moving the backup table to the end of the enlarged
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# disk image. This is necessary because we increased the size of the disk
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# before. The disk needs to be a raw disk because sgdisk can only run on
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# raw images.
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subprocess.run([
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"${pkgs.gptfdisk}/bin/sgdisk",
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"--move-second-header",
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tmp_disk_image.name,
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])
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# Set NIX_DISK_IMAGE so that the qemu script finds the right disk image.
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os.environ['NIX_DISK_IMAGE'] = tmp_disk_image.name
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'';
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common = { config, pkgs, lib, ... }: {
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virtualisation.useDefaultFilesystems = false;
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virtualisation.fileSystems = {
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"/" = {
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device = "/dev/vda2";
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fsType = "ext4";
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};
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};
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# systemd-repart operates on disks with a partition table. The qemu module,
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# however, creates separate filesystem images without a partition table, so
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# we have to create a disk image manually.
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#
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# This creates two partitions, an ESP mounted on /dev/vda1 and the root
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# partition mounted on /dev/vda2
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system.build.diskImage = import ../lib/make-disk-image.nix {
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inherit config pkgs lib;
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# Use a raw format disk so that it can be resized before starting the
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# test VM.
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format = "raw";
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# Keep the image as small as possible but leave some room for changes.
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bootSize = "32M";
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additionalSpace = "0M";
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# GPT with an EFI System Partition is the typical use case for
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# systemd-repart because it does not support MBR.
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partitionTableType = "efi";
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# We do not actually care much about the content of the partitions, so we
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# do not need a bootloader installed.
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installBootLoader = false;
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# Improve determinism by not copying a channel.
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copyChannel = false;
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};
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};
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in
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{
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basic = makeTest {
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name = "systemd-repart";
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meta.maintainers = with maintainers; [ nikstur ];
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nodes.machine = { config, pkgs, ... }: {
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imports = [ common ];
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boot.initrd.systemd.enable = true;
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boot.initrd.systemd.repart.enable = true;
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systemd.repart.partitions = {
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"10-root" = {
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Type = "linux-generic";
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};
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};
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};
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testScript = { nodes, ... }: ''
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${useDiskImage nodes.machine}
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machine.start()
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machine.wait_for_unit("multi-user.target")
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systemd_repart_logs = machine.succeed("journalctl --boot --unit systemd-repart.service")
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assert "Growing existing partition 1." in systemd_repart_logs
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'';
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};
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after-initrd = makeTest {
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name = "systemd-repart-after-initrd";
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meta.maintainers = with maintainers; [ nikstur ];
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nodes.machine = { config, pkgs, ... }: {
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imports = [ common ];
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systemd.repart.enable = true;
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systemd.repart.partitions = {
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"10-root" = {
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Type = "linux-generic";
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};
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};
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};
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testScript = { nodes, ... }: ''
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${useDiskImage nodes.machine}
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machine.start()
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machine.wait_for_unit("multi-user.target")
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systemd_repart_logs = machine.succeed("journalctl --unit systemd-repart.service")
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assert "Growing existing partition 1." in systemd_repart_logs
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'';
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};
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}
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