path: root/hosts/common/server/unifi.nix

{ config, lib, pkgs, ... }:

let
  allowedRules = {
    # https://help.ubnt.com/hc/en-us/articles/218506997
    allowedTCPPorts = [
      8080 # Port for UAP to inform controller.
      8880 # Port for HTTP portal redirect, if guest portal is enabled.
      8843 # Port for HTTPS portal redirect, ditto.
      6789 # Port for UniFi mobile speed test.
    ];
    allowedUDPPorts = [
      3478 # UDP port used for STUN.
      10001 # UDP port used for device discovery.
    ];
  };
in {
  config = {
    networking.firewall.allowedTCPPorts = [ 8443 ];
    networking.firewall = allowedRules;
    users.users.unifi.group = "unifi";
    users.users.unifi.isSystemUser = true;
    users.groups.unifi = { };

    services.unifi = {
      enable = true;
      openPorts = true;
      openFirewall = true;
    };

    services.prometheus.exporters.unifi = {
      enable = true;
      unifiAddress = "https://localhost:8443/";
      unifiInsecure = true;
      influxdb.disable = true;
      prometheus = { http_listen = ":9130"; };
    };

    systemd.services.unifi-available = {
      description = "Wait for Unifi to be available";
      after = [ "unifi.service" ];
      before = [ "prometheus-unifi-exporter.service" ];
      wantedBy = [ "prometheus-unifi-exporter.service" ];
      serviceConfig = {
        ExecStart =
          "${pkgs.curl}/bin/curl --insecure 'https://localhost:8443/'";
        Restart = "on-failure";
        RestartSec = "10";
        Type = "oneshot";
      };
    };
  };
}