infra/modules/promtail/default.nix

{ config
, lib
, pkgs
, flake
, ...
}: {
  age.secrets.nachtigall-metrics-prometheus-basic-auth-password = {
    file = "${flake.self}/secrets/nachtigall-metrics-prometheus-basic-auth-password.age";
    mode = "600";
    owner = "promtail";
  };

  services.promtail = {
    enable = true;
    configuration = {
      server = {
        http_listen_port = 9080;
        grpc_listen_port = 0;
      };
      positions = {
        filename = "/tmp/positions.yaml";
      };
      clients = [{
        url = "https://flora-6.${config.pub-solar-os.networking.domain}/loki/api/v1/push";
        basic_auth = {
          username = "hakkonaut";
          password_file = "${config.age.secrets.nachtigall-metrics-prometheus-basic-auth-password.path}";
        };
      }];
      scrape_configs = [{
        job_name = "journal";
        journal = {
          max_age = "24h";
          labels = {
            job = "systemd-journal";
            host = "nachtigall";
          };
        };
        relabel_configs = [{
          source_labels = [ "__journal__systemd_unit" ];
          target_label = "unit";
        }];
      }];
    };
  };
}