104 lines
4.2 KiB
Nix
104 lines
4.2 KiB
Nix
{ lib, pkgs, ... }:
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{
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# hostId: not used for anything except zfs guardrail?
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# [hex(ord(x)) for x in 'serv']
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# networking.hostId = "73657276";
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sane.persist.stores."ext" = {
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origin = "/mnt/pool/persist";
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storeDescription = "external HDD storage";
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defaultMethod = "bind"; #< TODO: change to "symlink"?
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};
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# increase /tmp space (defaults to 50% of RAM) for building large nix things.
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# even the stock `nixpkgs.linux` consumes > 16 GB of tmp
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fileSystems."/tmp".options = [ "size=32G" ];
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fileSystems."/nix" = {
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device = "/dev/disk/by-uuid/cc81cca0-3cc7-4d82-a00c-6243af3e7776";
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fsType = "btrfs";
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options = [
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"compress=zstd"
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"defaults"
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];
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};
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fileSystems."/boot" = {
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device = "/dev/disk/by-uuid/6EE3-4171";
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fsType = "vfat";
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};
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fileSystems."/mnt/pool" = {
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# all btrfs devices of the same RAID volume use the same UUID.
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device = "UUID=40fc6e1d-ba41-44de-bbf3-1aa02c3441df";
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fsType = "btrfs";
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options = [
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# "compress=zstd" #< not much point in compressing... mostly videos and music; media.
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"defaults"
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# `device=...` only needed if `btrfs scan` hasn't yet been run
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# see: <https://askubuntu.com/a/484374>
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# i don't know what guarantees NixOS/systemd make about that, so specifying all devices for now
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# "device=/dev/disk/by-partuuid/14a7d00a-be53-2b4e-96f9-7e2c964674ec" #< removed 2024-11-24 (for capacity upgrade)
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"device=/dev/disk/by-partuuid/409a147e-2282-49eb-87a7-c968032ede88" #< added 2024-11-24
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"device=/dev/disk/by-partuuid/6b86cc10-c3cc-ec4d-b20d-b6688f0959a6"
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# "device=/dev/disk/by-partuuid/7fd85cac-b6f3-8248-af4e-68e703d11020" #< removed 2024-11-13 (early drive failure)
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"device=/dev/disk/by-partuuid/d9ad5ebc-0fc4-4d89-9fd0-619ce5210f1b" #< added 2024-11-13
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"device=/dev/disk/by-partuuid/ef0e5c7b-fccf-f444-bac4-534424326159"
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"nofail"
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# "x-systemd.before=local-fs.target"
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"x-systemd.device-bound=false" #< don't unmount when `device` disappears (i thought this was necessary, for drive replacement, but it might not be)
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"x-systemd.device-timeout=60s"
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"x-systemd.mount-timeout=60s"
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];
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};
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# TODO: move this elsewhere and automate the ACLs!
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# FIRST TIME SETUP FOR MEDIA DIRECTORY:
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# - set the group sticky bit: `sudo find /var/media -type d -exec chmod g+s {} +`
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# - this ensures new files/dirs inherit the group of their parent dir (instead of the user who creates them)
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# - ensure everything under /var/media is mounted with `-o acl`, to support acls
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# - ensure all files are rwx by group: `setfacl --recursive --modify d:g::rwx /var/media`
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# - alternatively, `d:g:media:rwx` to grant `media` group even when file has a different owner, but that's a bit complex
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sane.persist.sys.byStore.ext = [{
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path = "/var/media";
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user = "colin";
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group = "media";
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mode = "0775";
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}];
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sane.fs."/var/media/archive".dir = {};
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# this is file.text instead of symlink.text so that it may be read over a remote mount (where consumers might not have any /nix/store/.../README.md path)
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sane.fs."/var/media/archive/README.md".file.text = ''
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this directory is for media i wish to remove from my library,
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but keep for a short time in case i reverse my decision.
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treat it like a system trash can.
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'';
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sane.fs."/var/media/Books".dir = {};
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sane.fs."/var/media/Books/Audiobooks".dir = {};
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sane.fs."/var/media/Books/Books".dir = {};
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sane.fs."/var/media/Books/Visual".dir = {};
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sane.fs."/var/media/collections".dir = {};
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sane.fs."/var/media/freeleech".dir = {};
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sane.fs."/var/media/Music".dir = {};
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sane.fs."/var/media/Pictures".dir = {};
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sane.fs."/var/media/Videos".dir = {};
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sane.fs."/var/media/Videos/Film".dir = {};
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sane.fs."/var/media/Videos/Shows".dir = {};
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sane.fs."/var/media/Videos/Talks".dir = {};
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systemd.services.dedupe-media = {
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description = "transparently de-duplicate /var/media entries by using block-level hardlinks";
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script = ''
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${lib.getExe' pkgs.util-linux "hardlink"} /var/media --reflink=always --ignore-time --verbose
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'';
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};
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systemd.timers.dedupe-media = {
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wantedBy = [ "multi-user.target" ];
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timerConfig = {
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OnStartupSec = "23min";
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OnUnitActiveSec = "720min";
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};
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};
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}
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