Add impermanence setup to SIIT-DC

This commit is contained in:
Vili Sinervä 2025-06-29 12:39:15 +03:00
parent 9c4a0ea9b5
commit bfd56dd547
Signed by: Vili Sinervä
SSH key fingerprint: SHA256:FladqYjaE4scJY3Hi+gnShZ6ygnTJgixy0I6BAoHyos
3 changed files with 96 additions and 1 deletions

View file

@ -1,9 +1,13 @@
{ ... }:
{
networking.hostId = "f1636fe0";
imports = [
../../shared/base.nix
../../shared/hardware/impermanence.nix
../../shared/hardware/vm.nix
../../shared/disko/hetzner-ext4.nix
../../shared/disko/hetzner-zfs-impermanence.nix
../../servers/siit-dc.nix
];

View file

@ -0,0 +1,76 @@
{
disko.devices = {
disk = {
main = {
device = "/dev/sda";
type = "disk";
content = {
type = "gpt";
partitions = {
boot = {
size = "1M";
type = "EF02";
priority = 1;
};
ESP = {
size = "512M";
type = "EF00";
content = {
type = "filesystem";
format = "vfat";
mountpoint = "/boot";
mountOptions = [ "umask=0077" ];
};
};
zfs = {
size = "100%";
content = {
type = "zfs";
pool = "zroot";
};
};
};
};
};
};
zpool = {
zroot = {
type = "zpool";
rootFsOptions = {
canmount = "off";
compression = "zstd";
};
datasets = {
root = {
type = "zfs_fs";
mountpoint = "/";
options.mountpoint = "legacy";
postCreateHook = "zfs snapshot zroot/root@blank";
};
nix = {
type = "zfs_fs";
mountpoint = "/nix";
options.mountpoint = "legacy";
};
persist = {
type = "zfs_fs";
options = {
mountpoint = "legacy";
"com.sun:auto-snapshot" = "true";
};
mountpoint = "/persist";
};
home = {
type = "zfs_fs";
options = {
mountpoint = "legacy";
"com.sun:auto-snapshot" = "true";
};
mountpoint = "/home";
postCreateHook = "zfs snapshot zroot/home@blank";
};
};
};
};
};
}

View file

@ -0,0 +1,15 @@
{ lib, ... }:
{
services.zfs = {
autoScrub.enable = true;
autoSnapshot = {
enable = true;
flags = "-k -p --utc";
};
};
boot.initrd.postResumeCommands = lib.mkAfter ''
zfs rollback -r zroot/root@blank
zfs rollback -r zroot/home@blank
'';
}