dotfiles/nixos/systems/heater/impermenance.nix
magic_rb ac5403501f
Move arma 3 server over to heater
Signed-off-by: magic_rb <magic_rb@redalder.org>
2024-04-13 19:38:04 +02:00

83 lines
2 KiB
Nix

{
inputs',
pkgs,
...
}: let
rollbackStart = pkgs.writeText "rollback-start" ''
${pkgs.rolling_datasets}/bin/roll_dataset "heater-ssd/ephemeral/home" "10"
${pkgs.rolling_datasets}/bin/roll_dataset "heater-ssd/ephemeral/root" "10"
${pkgs.rolling_datasets}/bin/roll_dataset "heater-ssd/ephemeral/nix-tmp" "10"
'';
in {
nixpkgs.overlays = [
inputs'.self.overlays.show-files-to-be-deleted
inputs'.self.overlays.rolling_datasets
];
environment.systemPackages = [
pkgs.show-files-to-be-deleted
];
environment.persistence."/nix/persist" = {
hideMounts = true;
directories = [
"/var/log"
"/var/lib/nixos"
"/var/lib/systemd/coredump"
"/var/lib/arma3"
];
files = [
"/etc/machine-id"
"/etc/ssh/ssh_host_rsa_key"
"/etc/ssh/ssh_host_rsa_key.pub"
"/etc/ssh/ssh_host_ed25519_key"
"/etc/ssh/ssh_host_ed25519_key.pub"
];
};
boot.initrd.systemd.storePaths = with pkgs; [
zfs
busybox
rolling_datasets
rollbackStart
];
boot.initrd.systemd.services.rollback = {
description = "Rollback ZFS datasets to a pristine state";
wantedBy = [
"initrd.target"
];
after = [
"zfs-import-heater-ssd.service"
];
before = [
"sysroot.mount"
];
path = with pkgs; [
zfs
busybox
];
unitConfig.DefaultDependencies = "no";
serviceConfig.Type = "oneshot";
serviceConfig.ExecStart = "/bin/sh ${rollbackStart}";
};
systemd.services."mount-old-datasets" = {
description = "Mount old versions of datasets";
wantedBy = ["local-fs.target"];
after = ["local-fs.target"];
script = ''
${pkgs.rolling_datasets}/bin/mount_datasets "heater-ssd/ephemeral/home" "/home/.old"
${pkgs.rolling_datasets}/bin/mount_datasets "heater-ssd/ephemeral/root" "/root/.old"
${pkgs.rolling_datasets}/bin/mount_datasets "heater-ssd/ephemeral/nix-tmp" "/nix/tmp/.old"
'';
serviceConfig = {
Type = "oneshot";
RemainAfterExit = "yes";
TimeoutStartSec = "5m";
};
};
}