nixos-config/hosts/x86_64-linux/seraphim/monitoring.nix

{
  config,
  pkgs,
  ...
}: {
  networking.firewall.allowedTCPPorts = [80 443 9001];
  services.grafana = {
    enable = true;
    settings.server = {
      domain = "grafana.fritz.box";
      port = 2342;
      addr = "127.0.0.1";
    };
  };

  services.prometheus = {
    enable = true;
    port = 9001;
    exporters = {
      node = {
        enable = true;
        enabledCollectors = ["systemd" "sysctl" "powersupplyclass"];
        port = 9002;
      };
    };
    scrapeConfigs = [
      {
        job_name = "seraphim";
        static_configs = [
          {
            targets = ["127.0.0.1:${toString config.services.prometheus.exporters.node.port}"];
          }
        ];
      }
    ];
  };

  services.nginx.virtualHosts.${config.services.grafana.settings.server.domain} = {
    locations."/" = {
      extraConfig = ''
        proxy_set_header Host $host;
      '';
      proxyPass = "http://127.0.0.1:${toString config.services.grafana.port}";
      proxyWebsockets = true;
    };
  };
}