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import ./make-test-python.nix ({ lib, pkgs, ... }: {
name = "systemd-initrd-swraid";
nodes.machine = { pkgs, ... }: {
# Use systemd-boot
virtualisation = {
emptyDiskImages = [ 512 512 ];
useBootLoader = true;
# Booting off the RAID requires an available init script
mountHostNixStore = true;
useEFIBoot = true;
};
boot.loader.systemd-boot.enable = true;
boot.loader.efi.canTouchEfiVariables = true;
environment.systemPackages = with pkgs; [ mdadm e2fsprogs ]; # for mdadm and mkfs.ext4
boot.swraid = {
enable = true;
mdadmConf = ''
ARRAY /dev/md0 devices=/dev/vdb,/dev/vdc
'';
};
environment.etc."mdadm.conf".text = ''
MAILADDR test@example.com
'';
boot.initrd = {
systemd = {
enable = true;
emergencyAccess = true;
};
kernelModules = [ "raid0" ];
};
specialisation.boot-swraid.configuration.virtualisation.rootDevice = "/dev/disk/by-label/testraid";
# This protects against a regression. We do not have to switch to it.
# It's sufficient to trigger its evaluation.
specialisation.build-old-initrd.configuration.boot.initrd.systemd.enable = lib.mkForce false;
};
testScript = ''
# Create RAID
machine.succeed("mdadm --create --force /dev/md0 -n 2 --level=raid1 /dev/vdb /dev/vdc --metadata=0.90")
machine.succeed("mkfs.ext4 -L testraid /dev/md0")
machine.succeed("mkdir -p /mnt && mount /dev/md0 /mnt && echo hello > /mnt/test && umount /mnt")
# Boot from the RAID
machine.succeed("bootctl set-default nixos-generation-1-specialisation-boot-swraid.conf")
machine.succeed("sync")
machine.crash()
machine.wait_for_unit("multi-user.target")
# Ensure we have successfully booted from the RAID
assert "(initrd)" in machine.succeed("systemd-analyze") # booted with systemd in stage 1
assert "/dev/md0 on / type ext4" in machine.succeed("mount")
assert "hello" in machine.succeed("cat /test")
assert "md0" in machine.succeed("cat /proc/mdstat")
expected_config = """MAILADDR test@example.com
ARRAY /dev/md0 devices=/dev/vdb,/dev/vdc
"""
got_config = machine.execute("cat /etc/mdadm.conf")[1]
assert expected_config == got_config, repr((expected_config, got_config))
machine.wait_for_unit("mdmonitor.service")
'';
})
|
