dotfiles/nixos/systems/blowhole/nas.nix

{ pkgs, ... }:
{
  boot.zfs.extraPools = [
    "storfa"
  ];

  services.restic.backups.cartman = {
    initialize = true;
    timerConfig = {
      OnCalendar = "03:00";
    };

    paths = [ "/run/restic/cartman" ];
    backupPrepareCommand = ''
      snapshot="$(date +restic%+4Y_%U_%u)"
      ${pkgs.zfs-relmount}/bin/zfs-relmount snapshot storfa/ds1/cartman "''${snapshot}"

      mkdir /run/restic/cartman
      ${pkgs.zfs-relmount}/bin/zfs-relmount mount-snapshot storfa/ds1/cartman /run/restic/cartman "''${snapshot}"

      export RESTIC_PROGRESS_FPS=1
    '';
    backupCleanupCommand = ''
      ${pkgs.zfs-relmount}/bin/zfs-relmount umount storfa/ds1/cartman /run/restic/cartman
      rm -r /run/restic/cartman
    '';

    passwordFile = "";
    repository = "";
  };

  systemd.timers."restic-backups-cartman" = {
    timerConfig = {
      Persistent = true;
      WakeSystem = true;
    };
  };

  systemd.services."restic-backups-cartman" = {
    path = with pkgs; [
      util-linux
      zfs
    ];
    serviceConfig = {
      Nice = 19;
      IOSchedulingClass = "idle";
      EnvironmentFile = "/var/secrets/restic-b2";
    };
  };
}