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{ lib, ... }:
{
name = "swap-file-btrfs";
meta.maintainers = with lib.maintainers; [ oxalica ];
nodes.machine =
{ config, pkgs, ... }:
{
virtualisation.useDefaultFilesystems = false;
virtualisation.rootDevice = "/dev/vda";
boot.initrd.systemd.enable = true;
virtualisation.fileSystems = {
"/" = {
device = config.virtualisation.rootDevice;
fsType = "btrfs";
autoFormat = true;
};
};
swapDevices = [
{
device = "/var/swapfile";
size = 1; # 1MiB.
}
];
};
testScript = ''
machine.wait_for_unit('var-swapfile.swap')
# Ensure the swap file creation script ran to completion without failing when creating the swap file
machine.fail("systemctl is-failed --quiet mkswap-var-swapfile.service")
machine.succeed("stat --file-system --format=%T /var/swapfile | grep btrfs")
# First run. Auto creation.
machine.succeed("swapon --show | grep /var/swapfile")
machine.shutdown()
machine.start()
# Second run. Use it as-is.
machine.wait_for_unit('var-swapfile.swap')
# Ensure the swap file creation script ran to completion without failing when the swap file already exists
machine.fail("systemctl is-failed --quiet mkswap-var-swapfile.service")
machine.succeed("swapon --show | grep /var/swapfile")
'';
}
|
