nixos-config/linux/blitzar/zfs.nix

{
  config,
  lib,
  ...
}: {
  boot.loader.grub.zfsSupport = true;

  services.zfs = {
    autoScrub.enable = true;
    trim.enable = true;
  };

  services.zrepl = {
    enable = true;
    settings = {
      global = {
        logging = [
          {
            type = "syslog";
            level = "info";
            format = "human";
          }
        ];
      };
      jobs = [
        {
          name = "snapshot";
          type = "snap";
          filesystems = {"zroot/main/home" = true;};
          snapshotting = {
            type = "periodic";
            prefix = "zrepl-";
            interval = "1h";
          };
          pruning = {
            keep = [
              {
                type = "grid";
                regex = "^zrepl-.*";
                grid = lib.concatStringsSep " | " ["1x1h(keep=all)" "24x1h" "7x1d" "4x1w"];
              }
            ];
          };
        }
        {
          name = "push-to-local-drive";
          type = "push";
          send = {encrypted = true;};
          connect = {
            type = "local";
            listener_name = "sink-to-local-drive";
            client_identity = config.networking.hostName;
          };
          filesystems = {"zroot/main/home" = true;};
          replication = {
            protection = {
              initial = "guarantee_resumability";
              incremental = "guarantee_incremental";
            };
          };
          snapshotting = {type = "manual";};
          pruning = {
            keep_sender = [
              {
                type = "regex";
                regex = ".*";
              }
            ];
            keep_receiver = [
              {
                type = "grid";
                regex = "^zrepl-.*";
                grid = lib.concatStringsSep " | " ["1x1h(keep=all)" "365x1d" "52x1w"];
              }
            ];
          };
        }
        {
          name = "sink-to-local-drive";
          type = "sink";
          recv = {placeholder = {encryption = "off";};};
          root_fs = "zbackup";
          serve = {
            type = "local";
            listener_name = "sink-to-local-drive";
          };
        }
      ];
    };
  };
}