106 lines
3.1 KiB
Nix
106 lines
3.1 KiB
Nix
{ config, lib, ... }:
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let
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linkCommands = map
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(location: ''
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$DRY_RUN_CMD mkdir -p $VERBOSE_ARG "/home/charlotte/$(dirname ${location.path})"
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$DRY_RUN_CMD ln -sf -T $VERBOSE_ARG "/${location.type}/home/charlotte/${location.path}" "/home/charlotte/${location.path}"
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'')
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config.chvp.zfs.homeLinks;
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in
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{
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options.chvp.zfs = {
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enable = lib.mkOption {
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default = false;
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example = true;
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};
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encrypted = lib.mkOption {
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default = false;
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example = true;
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};
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systemLinks = lib.mkOption {
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default = [ ];
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example = [
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{ path = "/var/lib/docker"; type = "cache"; }
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{ path = "/var/lib/docker/volumes"; type = "data"; }
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];
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};
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homeLinks = lib.mkOption {
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default = [ ];
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example = [
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{ path = ".config/syncthing"; type = "data"; }
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{ path = ".cache/nix-index"; type = "cache"; }
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];
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};
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backups = lib.mkOption {
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default = [ ];
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example = [{
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path = "rpool/safe/data";
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remotePath = "zdata/recv/<hostname>/safe/data";
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fast = false;
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location = "lasting-integrity.vanpetegem.me";
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}];
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};
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rootDataset = lib.mkOption {
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example = "rpool/local/root";
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};
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};
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config = lib.mkIf config.chvp.zfs.enable {
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chvp.dataPrefix = lib.mkDefault "/data";
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chvp.cachePrefix = lib.mkDefault "/cache";
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boot = {
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supportedFilesystems = [ "zfs" ];
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zfs.requestEncryptionCredentials = config.chvp.zfs.encrypted;
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initrd.postDeviceCommands = lib.mkAfter ''
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zfs rollback -r ${config.chvp.zfs.rootDataset}@blank
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'';
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};
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services = {
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znapzend = {
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enable = config.chvp.zfs.backups != [ ];
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pure = true;
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autoCreation = true;
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zetup = builtins.listToAttrs
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(map
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(elem: {
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name = elem.path;
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value = {
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enable = true;
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plan =
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if elem.fast then
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"1hour=>15min,1day=>1hour,1week=>1day,4week=>1week" else
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"1day=>1hour,1week=>1day,4week=>1week,1year=>1month,10year=>6month";
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timestampFormat = "%Y-%m-%d--%H%M%SZ";
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destinations."${elem.location}" = {
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plan =
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if elem.fast then
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"1day=>1hour,1week=>1day,4week=>1week,1year=>4week,10year=>1year" else
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"1day=>1hour,1week=>1day,4week=>1week,1year=>1month,10year=>6month";
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host = "${elem.location}";
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dataset = elem.remotePath;
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};
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};
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})
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config.chvp.zfs.backups);
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};
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zfs = {
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autoScrub.enable = true;
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trim.enable = true;
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};
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};
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systemd.tmpfiles.rules = (
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[ "d /home/charlotte 0700 charlotte users - -" ] ++
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(map (location: "L ${location.path} - - - - /${location.type}${location.path}") config.chvp.zfs.systemLinks)
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);
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home-manager.users.charlotte = { lib, ... }: {
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home.activation = {
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linkCommands = lib.hm.dag.entryAfter [ "writeBoundary" ] (lib.concatStringsSep "\n" linkCommands);
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};
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};
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};
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}
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