{ hosts, ... }:
{
  services.prometheus = {
    enable = true;
    retentionTime = "90d";
    scrapeConfigs = [
      {
        job_name = "node";
        static_configs = builtins.map (name: {
          targets = [
            "${name}.${hosts.${name}.site}.grzb.de:9100"
          ];
          labels = {
            host = "${name}.${hosts.${name}.site}.grzb.de";
          };
        }) (builtins.attrNames hosts);
      }
    ];
    alertmanager = {
      enable = true;
      listenAddress = "localhost";
      webExternalUrl = "https://alertmanager.grzb.de";
    };
  };
}