nixos-config/modules/postgresql.nix

{ pkgs, config, ... }:
{
  services.postgresql = {
    enable = true;
    package = pkgs.postgresql_14;
    enableTCPIP = true;
    ensureUsers = [
      {
        name = "zbx_monitor";
        ensurePermissions = {
          "FUNCTION pg_catalog.pg_ls_dir(text)" = "EXECUTE";
          "FUNCTION pg_catalog.pg_stat_file(text)" = "EXECUTE";
          "FUNCTION pg_catalog.pg_ls_waldir()" = "EXECUTE";
        };
      }
    ];
  };

  services.postgresqlBackup = {
    enable = true;
    startAt = "*-*-* *:30:00";
    compression = "zstd";
    databases = [
      "postgres"
    ];
  };

  services.logrotate = {
    paths.postgresqlBackup = {
      path = "${config.services.postgresqlBackup.location}/*.sql.zstd";
      user = "postgres";
      group = "postgres";
      keep = 24;
      frequency = "hourly";
      extraConfig = ''
        dateext
        dateformat _%Y-%m-%d:%H
        extension = .zstd
      '';

    };
  };
}

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