mirror of
https://github.com/NixOS/nixpkgs.git
synced 2025-11-09 16:18:34 +01:00
49 lines
1.4 KiB
Nix
49 lines
1.4 KiB
Nix
{ 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")
|
|
'';
|
|
}
|