flakes/hosts/hazel/filesystem.nix

53 lines
1.3 KiB
Nix

{ ... }:
let
mkLabelMount = label: type: options: {
device = "/dev/disk/by-label/${label}";
fsType = type;
options = [ "defaults" ] ++ options;
};
mkBtrfsMount = name: ext: subvol: atime: mkLabelMount name "btrfs"
([
"autodefrag"
"compress=zstd:4"
"compress-force=zstd:4"
"defaults"
"nossd"
"space_cache=v2"
"subvol=${subvol}"
(if atime then "relatime" else "noatime")
] ++ ext);
mkHazelMount = mkBtrfsMount "HAZEL" [];
in
{
boot.supportedFilesystems = [ "btrfs" ];
fileSystems = {
"/" = {
device = "rootfs";
fsType = "tmpfs";
options = [ "defaults" "mode=755" ];
};
"/boot" = mkLabelMount "ROOT" "vfat" [];
"/flower" = mkHazelMount "/current/flower" true;
"/persist" = mkHazelMount "/current/persist" true;
"/var" = mkHazelMount "/current/var" true;
"/nix" = mkHazelMount "/current/nix" false;
"/mnt" = mkHazelMount "/" true;
};
services.snapper.cleanupInterval = "1h";
services.snapper.configs.flower = {
FSTYPE = "btrfs";
SUBVOLUME = "/mnt/current/flower";
TIMELINE_CLEANUP = true;
TIMELINE_CREATE = true;
TIMELINE_MIN_AGE = "1800";
TIMELINE_LIMIT_HOURLY = "5";
TIMELINE_LIMIT_DAILY = "7";
TIMELINE_LIMIT_WEEKLY = "0";
TIMELINE_LIMIT_MONTHLY = "0";
TIMELINE_LIMIT_YEARLY = "0";
};
}