grimm-nix-server/modules/grafana.nix

{ config, ... }:
let
  root_host = "grimmauld.de";
  grafana_host = "grafana.${root_host}";
  grafana_port = 8082;
in {
  age.secrets.grafana_admin_pass = {
    file = ../secrets/grafana_admin_pass.age;
    owner = "grafana";
    group = "grafana";
    mode = "0600";
  };

  security.acme.certs."${root_host}".extraDomainNames = [ grafana_host ];
  services.grafana = {
    enable = true;
    settings = {
      security = {
        admin_user = "admin";
        admin_email = "admin@${root_host}";
        admin_password = "$__file{${config.age.secrets.grafana_admin_pass.path}}";
      };
      server = {
        domain = grafana_host;
        root_url = "https://${grafana_host}";
        http_port = grafana_port;
      };
    };
  };

  services.nginx = {
    enable = true;
    virtualHosts."${grafana_host}" = {
      serverName = grafana_host;
      forceSSL = true;
      useACMEHost = root_host;
      locations."/" = {
        proxyPass = "http://127.0.0.1:${builtins.toString config.services.grafana.settings.server.http_port}";
        proxyWebsockets = true;
      };
    };
  };
}