hosts/mermet/sanoid.nix

   1 { pkgs, lib, config, inputs, ... }:
   2 let
   3   inherit (builtins) readFile;
   4   inherit (config.users) users;
   5 in
   6 {
   7 users.users.backup = {
   8   isSystemUser = true;
   9   shell = users.root.shell;
  10   openssh.authorizedKeys.keys = [
  11     (readFile (inputs.secrets + "/hosts/losurdo/ssh/backup.ssh-ed25519.pub"))
  12   ] ++ users."julm".openssh.authorizedKeys.keys;
  13 };
  14 system.activationScripts.backup = ''
  15   ${pkgs.zfs}/bin/zfs allow -u ${users.backup.name} bookmark,hold,send rpool
  16   ${pkgs.zfs}/bin/zfs allow -u ${users.backup.name} receive,create,mount,rollback rpool/backup
  17 '';
  18 services.sanoid = {
  19   enable = true;
  20   templates = {
  21     local = {
  22       autosnap = true;
  23       autoprune = true;
  24       monthly = 3;
  25     };
  26     remote = {
  27       autosnap = false;
  28       autoprune = true;
  29       monthly = 3;
  30     };
  31   };
  32   extraArgs = [
  33     "--verbose"
  34     #"--debug"
  35   ];
  36   datasets = {
  37     "rpool/backup/losurdo/var/postgresql" = {
  38       use_template = [ "remote" ];
  39       daily = 31;
  40     };
  41     "rpool/backup/losurdo/var/cryptpad" = {
  42       use_template = [ "remote" ];
  43       daily = 31;
  44       monthly = 0;
  45     };
  46   };
  47 };
  48 }