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|
{ config, lib, modulesPath, ... }:
let
cfg = config.xnet.disk;
commonOpts = {
acltype = "posixacl";
atime = "off";
compression = "on";
normalization = "formD";
relatime = "off";
xattr = "sa";
"com.sun:auto-snapshot" = "false";
};
inherit (lib) mkOption mkDefault mkIf types;
in
{
imports = [
./boot.nix
(modulesPath + "/installer/scan/not-detected.nix")
];
options.xnet.disk = {
enable = mkOption {
type = types.bool;
default = false;
description = "Apply xnet-standard ZFS disk layout.";
};
device = mkOption {
type = types.str;
description = "Underlying device that build the root ZFS pool.";
};
extraDatasets = mkOption { };
};
config = mkIf cfg.enable {
networking.hostId = builtins.substring 0 8
(builtins.hashString "md5" config.networking.hostName);
services.zfs = {
autoScrub.enable = true;
trim.enable = true;
};
zramSwap.enable = mkDefault true;
boot = {
kernelParams = [ "nohibernate" "elevator=none" ];
supportedFilesystems = [ "vfat" "zfs" ];
zfs.devNodes = "/dev/disk/by-partuuid";
};
disko.devices = (import ./layouts/single.nix cfg.device) // {
nodev."/" = {
fsType = "tmpfs";
mountOptions = [ "defaults" "size=2G" "mode=755" ];
};
zpool.zroot = {
type = "zpool";
options = {
ashift = "12";
autotrim = "on";
};
datasets = {
"local" = {
type = "zfs_fs";
options = commonOpts;
};
"local/reserved" = {
type = "zfs_fs";
options = {
refreservation = "10G";
mountpoint = "none";
};
};
"local/nix" = {
type = "zfs_fs";
mountpoint = "/nix";
options.mountpoint = "legacy";
};
"local/certs" = {
type = "zfs_fs";
mountpoint = "/certs";
options.mountpoint = "legacy";
};
"persist" = {
type = "zfs_fs";
mountpoint = "/persist";
options = { mountpoint = "legacy"; } // commonOpts;
};
"persist/data" = {
type = "zfs_fs";
mountpoint = "/persist/data";
options.mountpoint = "legacy";
};
} // cfg.extraDatasets;
};
};
users.groups.backup = {
members = [ config.services.syncoid.group ];
gid = 2001;
};
};
}
|
