forked from jan-leila/nix-config
made disko/impermanence config into a module
This commit is contained in:
parent
c28731a1a7
commit
30ad3c91b9
10 changed files with 571 additions and 466 deletions
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@ -8,5 +8,7 @@
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./desktop.nix
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./ssh.nix
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./i18n.nix
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./impermanence.nix
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./disko.nix
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];
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}
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168
modules/nixos-modules/disko.nix
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168
modules/nixos-modules/disko.nix
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@ -0,0 +1,168 @@
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{
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lib,
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config,
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inputs,
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...
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}: let
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# there currently is a bug with disko that causes long disk names to be generated improperly this hash function should alleviate it when used for disk names instead of what we are defaulting to
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# max gpt length is 36 and disk adds formats it like disk-xxxx-zfs which means we need to be 9 characters under that
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hashDisk = drive: (builtins.substring 0 27 (builtins.hashString "sha256" drive));
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vdevs =
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builtins.map (
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disks:
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builtins.map (disk: lib.attrsets.nameValuePair (hashDisk disk) disk) disks
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)
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config.host.storage.pool.vdevs;
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cache =
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builtins.map (
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disk: lib.attrsets.nameValuePair (hashDisk disk) disk
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)
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config.host.storage.pool.cache;
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in {
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options.host.storage = {
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enable = lib.mkEnableOption "are we going create zfs disks with disko on this device";
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encryption = lib.mkEnableOption "is the vdev going to be encrypted";
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pool = {
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vdevs = lib.mkOption {
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type = lib.types.listOf (lib.types.listOf lib.types.str);
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description = "list of disks that are going to be in";
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default = [config.host.storage.pool.drives];
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};
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drives = lib.mkOption {
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type = lib.types.listOf lib.types.str;
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description = "list of drives that are going to be in the vdev";
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default = [];
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};
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cache = lib.mkOption {
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type = lib.types.listOf lib.types.str;
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description = "list of drives that are going to be used as cache";
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default = [];
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};
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extraDatasets = lib.mkOption {
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type = lib.types.attrsOf (inputs.disko.lib.subType {
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types = {inherit (inputs.disko.lib.types) zfs_fs zfs_volume;};
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});
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description = "List of datasets to define";
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default = {};
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};
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};
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};
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config = lib.mkIf config.host.storage.enable {
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disko.devices = {
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disk = (
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builtins.listToAttrs (
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(
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builtins.map
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(drive:
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lib.attrsets.nameValuePair (drive.name) {
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type = "disk";
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device = "/dev/disk/by-id/${drive.value}";
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content = {
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type = "gpt";
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partitions = {
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zfs = {
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size = "100%";
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content = {
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type = "zfs";
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pool = "rpool";
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};
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};
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};
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};
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})
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(lib.lists.flatten vdevs)
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)
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++ (
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builtins.map
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(drive:
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lib.attrsets.nameValuePair (drive.name) {
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type = "disk";
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device = "/dev/disk/by-id/${drive.value}";
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content = {
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type = "gpt";
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partitions = {
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# We are having to boot off of the nvm cache drive because I cant figure out how to boot via the HBA
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ESP = {
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size = "64M";
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type = "EF00";
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content = {
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type = "filesystem";
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format = "vfat";
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mountpoint = "/boot";
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mountOptions = ["umask=0077"];
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};
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};
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zfs = {
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size = "100%";
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content = {
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type = "zfs";
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pool = "rpool";
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};
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};
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};
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};
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})
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cache
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)
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)
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);
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zpool = {
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rpool = {
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type = "zpool";
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mode = {
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topology = {
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type = "topology";
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vdev = (
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builtins.map (disks: {
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mode = "raidz2";
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members =
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builtins.map (disk: disk.name) disks;
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})
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vdevs
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);
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cache = builtins.map (disk: disk.name) cache;
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};
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};
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options = {
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ashift = "12";
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autotrim = "on";
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};
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rootFsOptions =
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{
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canmount = "off";
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mountpoint = "none";
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xattr = "sa";
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acltype = "posixacl";
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relatime = "on";
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compression = "lz4";
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"com.sun:auto-snapshot" = "false";
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}
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// (
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lib.attrsets.optionalAttrs config.host.storage.encryption {
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encryption = "on";
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keyformat = "hex";
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keylocation = "prompt";
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}
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);
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datasets = lib.mkMerge [
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(lib.attrsets.mapAttrs (name: value: {
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type = value.type;
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options = value.options;
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mountpoint = value.mountpoint;
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postCreateHook = value.postCreateHook;
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})
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config.host.storage.pool.extraDatasets)
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];
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};
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};
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};
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};
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}
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110
modules/nixos-modules/impermanence.nix
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110
modules/nixos-modules/impermanence.nix
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@ -0,0 +1,110 @@
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{
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config,
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lib,
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...
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}: {
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options.host.impermanence.enable = lib.mkEnableOption "are we going to use impermanence on this device";
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# TODO: validate that config.host.storage.enable is enabled
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config = lib.mkMerge [
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{
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assertions = [
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{
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assertion = !(config.host.impermanence.enable && !config.host.storage.enable);
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message = ''
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Disko storage must be enabled to use impermanence.
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'';
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}
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];
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}
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(
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lib.mkIf config.host.impermanence.enable {
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boot.initrd.postResumeCommands = lib.mkAfter ''
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zfs rollback -r rpool/local/system/root@blank
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1 '';
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fileSystems = {
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"/".neededForBoot = true;
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"/persist/system/root".neededForBoot = true;
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};
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host.storage.pool.extraDatasets = {
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# local datasets are for data that should be considered ephemeral
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"local" = {
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type = "zfs_fs";
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options.canmount = "off";
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};
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# nix directory needs to be available pre persist and doesn't need to be snapshotted or backed up
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"local/system/nix" = {
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type = "zfs_fs";
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mountpoint = "/nix";
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options = {
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atime = "off";
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relatime = "off";
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canmount = "on";
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};
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};
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# dataset for root that gets rolled back on every boot
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"local/system/root" = {
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type = "zfs_fs";
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mountpoint = "/";
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options = {
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canmount = "on";
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};
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postCreateHook = ''
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zfs snapshot rpool/local/system/root@blank
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'';
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};
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# persist datasets are datasets that contain information that we would like to keep around
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"persist" = {
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type = "zfs_fs";
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options.canmount = "off";
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};
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# this is where root data actually lives
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"persist/system/root" = {
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type = "zfs_fs";
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mountpoint = "/persist/system/root";
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options = {
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"com.sun:auto-snapshot" = "true";
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};
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};
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"persist/system/var/log" = {
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type = "zfs_fs";
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mountpoint = "/persist/system/var/log";
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};
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};
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environment.persistence."/persist/system/root" = {
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enable = true;
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hideMounts = true;
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directories = [
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"/etc/ssh"
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"/var/log"
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"/var/lib/nixos"
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"/var/lib/systemd/coredump"
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# config.apps.pihole.directory.root
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# config.apps.jellyfin.mediaDirectory
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# config.services.jellyfin.configDir
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# config.services.jellyfin.cacheDir
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# config.services.jellyfin.dataDir
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# "/var/hass" # config.users.users.hass.home
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# "/var/postgresql" # config.users.users.postgresql.home
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# "/var/forgejo" # config.users.users.forgejo.home
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# "/var/nextcloud" # config.users.users.nextcloud.home
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# "/var/headscale" # config.users.users.headscale.home
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];
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files = [
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"/etc/machine-id"
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];
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};
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security.sudo.extraConfig = "Defaults lecture=never";
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}
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)
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];
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}
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@ -10,7 +10,7 @@
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principleUsers = host.principleUsers;
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terminalUsers = host.terminalUsers;
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# normalUsers = host.normalUsers;
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normalUsers = host.normalUsers;
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uids = {
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leyla = 1000;
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@ -43,213 +43,273 @@
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ester = users.ester.name;
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eve = users.eve.name;
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in {
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config = {
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# principle users are by definition trusted
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nix.settings.trusted-users = builtins.map (user: user.name) principleUsers;
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config = lib.mkMerge [
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{
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# principle users are by definition trusted
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nix.settings.trusted-users = builtins.map (user: user.name) principleUsers;
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# we should only be able to ssh into principle users of a computer who are also set up for terminal access
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services.openssh.settings.AllowUsers = builtins.map (user: user.name) (lib.lists.intersectLists terminalUsers principleUsers);
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# we should only be able to ssh into principle users of a computer who are also set up for terminal access
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services.openssh.settings.AllowUsers = builtins.map (user: user.name) (lib.lists.intersectLists terminalUsers principleUsers);
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# we need to set up env variables to nix can find keys to decrypt passwords on rebuild
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environment = {
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sessionVariables = {
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SOPS_AGE_KEY_DIRECTORY = SOPS_AGE_KEY_DIRECTORY;
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SOPS_AGE_KEY_FILE = "${SOPS_AGE_KEY_DIRECTORY}/key.txt";
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};
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};
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# set up user passwords
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sops = {
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defaultSopsFormat = "yaml";
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gnupg.sshKeyPaths = [];
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age = {
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keyFile = "/var/lib/sops-nix/key.txt";
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sshKeyPaths = [];
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# generateKey = true;
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};
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secrets = {
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"passwords/leyla" = {
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neededForUsers = true;
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sopsFile = "${inputs.secrets}/user-passwords.yaml";
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};
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"passwords/ester" = {
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neededForUsers = true;
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sopsFile = "${inputs.secrets}/user-passwords.yaml";
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};
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"passwords/eve" = {
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neededForUsers = true;
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sopsFile = "${inputs.secrets}/user-passwords.yaml";
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# we need to set up env variables to nix can find keys to decrypt passwords on rebuild
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environment = {
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sessionVariables = {
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SOPS_AGE_KEY_DIRECTORY = SOPS_AGE_KEY_DIRECTORY;
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SOPS_AGE_KEY_FILE = "${SOPS_AGE_KEY_DIRECTORY}/key.txt";
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};
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};
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# set up user passwords
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sops = {
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defaultSopsFormat = "yaml";
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gnupg.sshKeyPaths = [];
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age = {
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keyFile = "/var/lib/sops-nix/key.txt";
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sshKeyPaths = [];
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# generateKey = true;
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};
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secrets = {
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"passwords/leyla" = {
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neededForUsers = true;
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sopsFile = "${inputs.secrets}/user-passwords.yaml";
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};
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"passwords/ester" = {
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neededForUsers = true;
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sopsFile = "${inputs.secrets}/user-passwords.yaml";
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};
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"passwords/eve" = {
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neededForUsers = true;
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sopsFile = "${inputs.secrets}/user-passwords.yaml";
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};
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};
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};
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};
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users = {
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mutableUsers = false;
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users = {
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leyla = {
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uid = lib.mkForce uids.leyla;
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name = lib.mkForce host.users.leyla.name;
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description = "Leyla";
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extraGroups =
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(lib.lists.optionals host.users.leyla.isNormalUser ["networkmanager"])
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++ (lib.lists.optionals host.users.leyla.isPrincipleUser ["wheel" "dialout"])
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++ (lib.lists.optionals host.users.leyla.isDesktopUser ["adbusers"]);
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hashedPasswordFile = config.sops.secrets."passwords/leyla".path;
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isNormalUser = host.users.leyla.isNormalUser;
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isSystemUser = !host.users.leyla.isNormalUser;
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group = config.users.users.leyla.name;
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};
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ester = {
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uid = lib.mkForce uids.ester;
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name = lib.mkForce host.users.ester.name;
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description = "Ester";
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extraGroups = lib.optionals host.users.ester.isNormalUser ["networkmanager"];
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hashedPasswordFile = config.sops.secrets."passwords/ester".path;
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isNormalUser = host.users.ester.isNormalUser;
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isSystemUser = !host.users.ester.isNormalUser;
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group = config.users.users.ester.name;
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};
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eve = {
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uid = lib.mkForce uids.eve;
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name = lib.mkForce host.users.eve.name;
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description = "Eve";
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extraGroups = lib.optionals host.users.eve.isNormalUser ["networkmanager"];
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hashedPasswordFile = config.sops.secrets."passwords/eve".path;
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isNormalUser = host.users.eve.isNormalUser;
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isSystemUser = !host.users.eve.isNormalUser;
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group = config.users.users.eve.name;
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};
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jellyfin = {
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uid = lib.mkForce uids.jellyfin;
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isSystemUser = true;
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group = config.users.users.jellyfin.name;
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};
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forgejo = {
|
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uid = lib.mkForce uids.forgejo;
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isSystemUser = true;
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group = config.users.users.forgejo.name;
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};
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|
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pihole = {
|
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uid = lib.mkForce uids.pihole;
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isSystemUser = true;
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group = config.users.users.pihole.name;
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};
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|
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hass = {
|
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uid = lib.mkForce uids.hass;
|
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isSystemUser = true;
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group = config.users.users.hass.name;
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};
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|
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headscale = {
|
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uid = lib.mkForce uids.headscale;
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isSystemUser = true;
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group = config.users.users.headscale.name;
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};
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|
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nextcloud = {
|
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uid = lib.mkForce uids.nextcloud;
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isSystemUser = true;
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group = config.users.users.nextcloud.name;
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};
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||||
};
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|
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groups = {
|
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leyla = {
|
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gid = lib.mkForce gids.leyla;
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members = [
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leyla
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];
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};
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||||
|
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ester = {
|
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gid = lib.mkForce gids.ester;
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||||
members = [
|
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ester
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||||
];
|
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};
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|
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eve = {
|
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gid = lib.mkForce gids.eve;
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members = [
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eve
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];
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};
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mutableUsers = false;
|
||||
users = {
|
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gid = lib.mkForce gids.users;
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members = [
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leyla
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ester
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eve
|
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];
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leyla = {
|
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uid = lib.mkForce uids.leyla;
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name = lib.mkForce host.users.leyla.name;
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description = "Leyla";
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extraGroups =
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(lib.lists.optionals host.users.leyla.isNormalUser ["networkmanager"])
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++ (lib.lists.optionals host.users.leyla.isPrincipleUser ["wheel" "dialout"])
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++ (lib.lists.optionals host.users.leyla.isDesktopUser ["adbusers"]);
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hashedPasswordFile = config.sops.secrets."passwords/leyla".path;
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isNormalUser = host.users.leyla.isNormalUser;
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isSystemUser = !host.users.leyla.isNormalUser;
|
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group = config.users.users.leyla.name;
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||||
};
|
||||
|
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ester = {
|
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uid = lib.mkForce uids.ester;
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name = lib.mkForce host.users.ester.name;
|
||||
description = "Ester";
|
||||
extraGroups = lib.optionals host.users.ester.isNormalUser ["networkmanager"];
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||||
hashedPasswordFile = config.sops.secrets."passwords/ester".path;
|
||||
isNormalUser = host.users.ester.isNormalUser;
|
||||
isSystemUser = !host.users.ester.isNormalUser;
|
||||
group = config.users.users.ester.name;
|
||||
};
|
||||
|
||||
eve = {
|
||||
uid = lib.mkForce uids.eve;
|
||||
name = lib.mkForce host.users.eve.name;
|
||||
description = "Eve";
|
||||
extraGroups = lib.optionals host.users.eve.isNormalUser ["networkmanager"];
|
||||
hashedPasswordFile = config.sops.secrets."passwords/eve".path;
|
||||
isNormalUser = host.users.eve.isNormalUser;
|
||||
isSystemUser = !host.users.eve.isNormalUser;
|
||||
group = config.users.users.eve.name;
|
||||
};
|
||||
|
||||
jellyfin = {
|
||||
uid = lib.mkForce uids.jellyfin;
|
||||
isSystemUser = true;
|
||||
group = config.users.users.jellyfin.name;
|
||||
};
|
||||
|
||||
forgejo = {
|
||||
uid = lib.mkForce uids.forgejo;
|
||||
isSystemUser = true;
|
||||
group = config.users.users.forgejo.name;
|
||||
};
|
||||
|
||||
pihole = {
|
||||
uid = lib.mkForce uids.pihole;
|
||||
isSystemUser = true;
|
||||
group = config.users.users.pihole.name;
|
||||
};
|
||||
|
||||
hass = {
|
||||
uid = lib.mkForce uids.hass;
|
||||
isSystemUser = true;
|
||||
group = config.users.users.hass.name;
|
||||
};
|
||||
|
||||
headscale = {
|
||||
uid = lib.mkForce uids.headscale;
|
||||
isSystemUser = true;
|
||||
group = config.users.users.headscale.name;
|
||||
};
|
||||
|
||||
nextcloud = {
|
||||
uid = lib.mkForce uids.nextcloud;
|
||||
isSystemUser = true;
|
||||
group = config.users.users.nextcloud.name;
|
||||
};
|
||||
};
|
||||
|
||||
jellyfin_media = {
|
||||
gid = lib.mkForce gids.jellyfin_media;
|
||||
members = [
|
||||
users.jellyfin.name
|
||||
leyla
|
||||
ester
|
||||
eve
|
||||
];
|
||||
};
|
||||
groups = {
|
||||
leyla = {
|
||||
gid = lib.mkForce gids.leyla;
|
||||
members = [
|
||||
leyla
|
||||
];
|
||||
};
|
||||
|
||||
jellyfin = {
|
||||
gid = lib.mkForce gids.jellyfin;
|
||||
members = [
|
||||
users.jellyfin.name
|
||||
# leyla
|
||||
];
|
||||
};
|
||||
ester = {
|
||||
gid = lib.mkForce gids.ester;
|
||||
members = [
|
||||
ester
|
||||
];
|
||||
};
|
||||
|
||||
forgejo = {
|
||||
gid = lib.mkForce gids.forgejo;
|
||||
members = [
|
||||
users.forgejo.name
|
||||
# leyla
|
||||
];
|
||||
};
|
||||
eve = {
|
||||
gid = lib.mkForce gids.eve;
|
||||
members = [
|
||||
eve
|
||||
];
|
||||
};
|
||||
|
||||
pihole = {
|
||||
gid = lib.mkForce gids.pihole;
|
||||
members = [
|
||||
users.pihole.name
|
||||
# leyla
|
||||
];
|
||||
};
|
||||
users = {
|
||||
gid = lib.mkForce gids.users;
|
||||
members = [
|
||||
leyla
|
||||
ester
|
||||
eve
|
||||
];
|
||||
};
|
||||
|
||||
hass = {
|
||||
gid = lib.mkForce gids.hass;
|
||||
members = [
|
||||
users.hass.name
|
||||
# leyla
|
||||
];
|
||||
};
|
||||
jellyfin_media = {
|
||||
gid = lib.mkForce gids.jellyfin_media;
|
||||
members = [
|
||||
users.jellyfin.name
|
||||
leyla
|
||||
ester
|
||||
eve
|
||||
];
|
||||
};
|
||||
|
||||
headscale = {
|
||||
gid = lib.mkForce gids.headscale;
|
||||
members = [
|
||||
users.headscale.name
|
||||
# leyla
|
||||
];
|
||||
};
|
||||
jellyfin = {
|
||||
gid = lib.mkForce gids.jellyfin;
|
||||
members = [
|
||||
users.jellyfin.name
|
||||
# leyla
|
||||
];
|
||||
};
|
||||
|
||||
nextcloud = {
|
||||
gid = lib.mkForce gids.nextcloud;
|
||||
members = [
|
||||
users.nextcloud.name
|
||||
# leyla
|
||||
];
|
||||
forgejo = {
|
||||
gid = lib.mkForce gids.forgejo;
|
||||
members = [
|
||||
users.forgejo.name
|
||||
# leyla
|
||||
];
|
||||
};
|
||||
|
||||
pihole = {
|
||||
gid = lib.mkForce gids.pihole;
|
||||
members = [
|
||||
users.pihole.name
|
||||
# leyla
|
||||
];
|
||||
};
|
||||
|
||||
hass = {
|
||||
gid = lib.mkForce gids.hass;
|
||||
members = [
|
||||
users.hass.name
|
||||
# leyla
|
||||
];
|
||||
};
|
||||
|
||||
headscale = {
|
||||
gid = lib.mkForce gids.headscale;
|
||||
members = [
|
||||
users.headscale.name
|
||||
# leyla
|
||||
];
|
||||
};
|
||||
|
||||
nextcloud = {
|
||||
gid = lib.mkForce gids.nextcloud;
|
||||
members = [
|
||||
users.nextcloud.name
|
||||
# leyla
|
||||
];
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
}
|
||||
(lib.mkIf config.host.impermanence.enable {
|
||||
boot.initrd.postResumeCommands = lib.mkAfter (
|
||||
lib.strings.concatStrings (builtins.map (user: ''
|
||||
zfs rollback -r rpool/local/home/${user.name}@blank
|
||||
'')
|
||||
normalUsers)
|
||||
);
|
||||
|
||||
fileSystems.${SOPS_AGE_KEY_DIRECTORY}.neededForBoot = true;
|
||||
|
||||
environment.persistence."/persist/system/root" = {
|
||||
enable = true;
|
||||
hideMounts = true;
|
||||
directories = [
|
||||
"/run/secrets"
|
||||
];
|
||||
};
|
||||
|
||||
host.storage.pool.extraDatasets = lib.mkMerge [
|
||||
{
|
||||
# sops age key needs to be available to pre persist for user generation
|
||||
"local/system/sops" = {
|
||||
type = "zfs_fs";
|
||||
mountpoint = SOPS_AGE_KEY_DIRECTORY;
|
||||
options = {
|
||||
atime = "off";
|
||||
relatime = "off";
|
||||
canmount = "on";
|
||||
};
|
||||
};
|
||||
}
|
||||
(
|
||||
lib.mkMerge
|
||||
(
|
||||
builtins.map (user: {
|
||||
"local/home/${user.name}" = {
|
||||
type = "zfs_fs";
|
||||
mountpoint = "/home/${user.name}";
|
||||
options = {
|
||||
canmount = "on";
|
||||
};
|
||||
postCreateHook = ''
|
||||
zfs snapshot rpool/local/home/${user.name}@blank
|
||||
'';
|
||||
};
|
||||
"persist/home/${user.name}" = {
|
||||
type = "zfs_fs";
|
||||
mountpoint = "/persist/home/${user.name}";
|
||||
options = {
|
||||
"com.sun:auto-snapshot" = "true";
|
||||
};
|
||||
};
|
||||
})
|
||||
normalUsers
|
||||
)
|
||||
)
|
||||
];
|
||||
})
|
||||
];
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue