prometheus-fritzbox-exporter: init at 1.0

2 files changed, 77 insertions, 0 deletions

diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index c9f1fad0d0e9..627807edb900 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -329,6 +329,7 @@
   ./services/monitoring/prometheus/default.nix
   ./services/monitoring/prometheus/alertmanager.nix
   ./services/monitoring/prometheus/blackbox-exporter.nix
+  ./services/monitoring/prometheus/fritzbox-exporter.nix
   ./services/monitoring/prometheus/json-exporter.nix
   ./services/monitoring/prometheus/nginx-exporter.nix
   ./services/monitoring/prometheus/node-exporter.nix
diff --git a/nixos/modules/services/monitoring/prometheus/fritzbox-exporter.nix b/nixos/modules/services/monitoring/prometheus/fritzbox-exporter.nix
new file mode 100644
index 000000000000..6da39b6519cb
--- /dev/null
+++ b/nixos/modules/services/monitoring/prometheus/fritzbox-exporter.nix
@@ -0,0 +1,76 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.services.prometheus.fritzboxExporter;
+in {
+  options = {
+    services.prometheus.fritzboxExporter = {
+      enable = mkEnableOption "prometheus fritzbox exporter";
+
+      port = mkOption {
+        type = types.int;
+        default = 9133;
+        description = ''
+          Port to listen on.
+        '';
+      };
+
+      gatewayAddress = mkOption {
+        type = types.str;
+        default = "fritz.box";
+        description = ''
+          The hostname or IP of the FRITZ!Box.
+        '';
+      };
+
+      gatewayPort = mkOption {
+        type = types.int;
+        default = 49000;
+        description = ''
+          The port of the FRITZ!Box UPnP service.
+        '';
+      };
+
+      extraFlags = mkOption {
+        type = types.listOf types.str;
+        default = [];
+        description = ''
+          Extra commandline options when launching the fritzbox exporter.
+        '';
+      };
+
+      openFirewall = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Open port in firewall for incoming connections.
+        '';
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    networking.firewall.allowedTCPPorts = optional cfg.openFirewall cfg.port;
+
+    systemd.services.prometheus-fritzbox-exporter = {
+      description = "Prometheus exporter for FRITZ!Box via UPnP";
+      unitConfig.Documentation = "https://github.com/ndecker/fritzbox_exporter";
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig = {
+        User = "nobody";
+        Restart = "always";
+        PrivateTmp = true;
+        WorkingDirectory = /tmp;
+        ExecStart = ''
+          ${pkgs.prometheus-fritzbox-exporter}/bin/fritzbox_exporter \
+            -listen-address :${toString cfg.port} \
+            -gateway-address ${cfg.gatewayAddress} \
+            -gateway-port ${toString cfg.gatewayPort} \
+            ${concatStringsSep " \\\n  " cfg.extraFlags}
+        '';
+      };
+    };
+  };
+}