System/modules/linux/services/postgresql.nix

{ config, lib, pkgs, ... }:
let nathan = config.nathan;
in with lib; {
  config = mkMerge [
    (mkIf nathan.services.postgresql.enable {
      services.postgresql = { enable = true; };
    })
    (mkIf
      (nathan.services.postgresql.enable && nathan.services.postgresql.backup) {
        # Backup postgres
        services.postgresqlBackup = {
          enable = true;
          compression = "none";
          backupAll = true;
          # Every morning at 4 AM
          startAt = "*-*-* 4:00:00";
        };
      })
  ];
}