nixos-config/nixos/machines/orbi/disko-config.nix

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# nix run github:nix-community/disko -- --mode zap_create_mount ./disko-config.nix
# nixos-generate-config --no-filesystems --root /mnt
# vim /mnt/configuration.nix
# nixos-install
{ config, lib, ... }:
let
disks = [ "sda" "sdb" ];
in
{
# ZFS already has its own scheduler. Without this my(@Artturin) computer froze for a second when i nix build something.
# copied from : https://github.com/numtide/srvos/blob/main/nixos/common/zfs.nix
services.udev.extraRules = lib.optionalString (config.boot.zfs.enabled) ''
ACTION=="add|change", KERNEL=="sd[a-z]*[0-9]*|mmcblk[0-9]*p[0-9]*|nvme[0-9]*n[0-9]*p[0-9]*", ENV{ID_FS_TYPE}=="zfs_member", ATTR{../queue/scheduler}="none"
'';
disko.devices = {
disk =
lib.genAttrs disks (disk: {
name = disk;
type = "disk";
device = "/dev/${disk}";
content = {
type = "table";
format = "gpt";
partitions = [
{
name = "ESP";
start = "0";
end = "500MiB";
bootable = true;
content = {
type = "filesystem";
format = "vfat";
mountpoint = "/boot_${disk}";
mountOptions = [ "defaults" ];
};
}
{
name = "zfs";
start = "500MiB";
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end = "500GiB";
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content = {
type = "luks";
name = "root_${disk}";
settings = {
# if you want to use the key for interactive login be sure there is no trailing newline
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# for example use `echo -n "password" > /run/secret.key`
# or use nixos-anywhere --disk-encryption-keys /run/secret.key <local-path>
keyFile = "/run/secret.key";
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allowDiscards = true;
};
content = {
type = "zfs";
pool = "zroot";
};
};
}
{
name = "zfs";
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start = "500GiB";
end = "100%";
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content = {
type = "luks";
settings = {
# if you want to use the key for interactive login be sure there is no trailing newline
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# for example use `echo -n "password" > /run/secret.key`
keyFile = "/run/secret.key";
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allowDiscards = true;
};
name = "media_${disk}";
content = {
type = "zfs";
pool = "zmedia";
};
};
}
];
};
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} );
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zpool = {
zroot = {
type = "zpool";
mode = "mirror";
rootFsOptions = {
mountpoint = "none";
canmount = "off";
compression = "lz4";
};
datasets = {
"root" = {
type = "zfs_fs";
mountpoint = "/";
options = {
mountpoint = "legacy";
compression = "lz4";
};
};
"store" = {
type = "zfs_fs";
mountpoint = "/nix/store";
options = {
mountpoint = "legacy";
compression = "lz4";
};
};
};
};
# `zpool import -f zraid` once on the first boot and reboot
zmedia = {
type = "zpool";
rootFsOptions = {
mountpoint = "none";
canmount = "off";
};
datasets = {
"media" = {
type = "zfs_fs";
mountpoint = "/media";
options = {
mountpoint = "legacy";
compression = "lz4";
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#"com.sun:auto-snapshot:daily" = false;
#"com.sun:auto-snapshot:weekly" = false;
#"com.sun:auto-snapshot:monthly" = false;
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};
};
# todo make sure this disk has some minimum space
"nextcloud" = {
type = "zfs_fs";
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mountpoint = "/var/lib/nextcloud";
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options = {
mountpoint = "legacy";
compression = "lz4";
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"com.sun:auto-snapshot:hourly" = toString true;
"com.sun:auto-snapshot:daily" = toString true;
#"com.sun:auto-snapshot:weekly" = false;
#"com.sun:auto-snapshot:monthly" = false;
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};
};
};
};
};
};
}