Merge pull request #40028 from WilliButz/add-dnsmasq-exporter

prometheus-dnsmasq-exporter: init at 2018-05-05, add module

nixos/modules/services/monitoring/prometheus/exporters.nix

@@ -20,6 +20,7 @@ let
   exporterOpts = {
     blackbox  = import ./exporters/blackbox.nix  { inherit config lib pkgs; };
     collectd  = import ./exporters/collectd.nix  { inherit config lib pkgs; };
+    dnsmasq   = import ./exporters/dnsmasq.nix   { inherit config lib pkgs; };
     dovecot   = import ./exporters/dovecot.nix   { inherit config lib pkgs; };
     fritzbox  = import ./exporters/fritzbox.nix  { inherit config lib pkgs; };
     json      = import ./exporters/json.nix      { inherit config lib pkgs; };

nixos/modules/services/monitoring/prometheus/exporters/dnsmasq.nix

@@ -0,0 +1,39 @@
+{ config, lib, pkgs }:
+
+with lib;
+
+let
+  cfg = config.services.prometheus.exporters.dnsmasq;
+in
+{
+  port = 9153;
+  extraOpts = {
+    dnsmasqListenAddress = mkOption {
+      type = types.str;
+      default = "localhost:53";
+      description = ''
+        Address on which dnsmasq listens.
+      '';
+    };
+    leasesPath = mkOption {
+      type = types.path;
+      default = "/var/lib/misc/dnsmasq.leases";
+      example = "/var/lib/dnsmasq/dnsmasq.leases";
+      description = ''
+        Path to the <literal>dnsmasq.leases</literal> file.
+      '';
+    };
+  };
+  serviceOpts = {
+    serviceConfig = {
+      DynamicUser = true;
+      ExecStart = ''
+        ${pkgs.prometheus-dnsmasq-exporter}/bin/dnsmasq_exporter \
+          --listen ${cfg.listenAddress}:${toString cfg.port} \
+          --dnsmasq ${cfg.dnsmasqListenAddress} \
+          --leases_path ${cfg.leasesPath} \
+          ${concatStringsSep " \\\n  " cfg.extraFlags}
+      '';
+    };
+  };
+}

pkgs/servers/monitoring/prometheus/dnsmasq-exporter-deps.nix

@@ -0,0 +1,93 @@
+# This file was generated by https://github.com/kamilchm/go2nix v1.2.1
+[
+  {
+    goPackagePath = "github.com/beorn7/perks";
+    fetch = {
+      type = "git";
+      url = "https://github.com/beorn7/perks";
+      rev = "3a771d992973f24aa725d07868b467d1ddfceafb";
+      sha256 = "1l2lns4f5jabp61201sh88zf3b0q793w4zdgp9nll7mmfcxxjif3";
+    };
+  }
+  {
+    goPackagePath = "github.com/golang/protobuf";
+    fetch = {
+      type = "git";
+      url = "https://github.com/golang/protobuf";
+      rev = "b4deda0973fb4c70b50d226b1af49f3da59f5265";
+      sha256 = "0ya4ha7m20bw048m1159ppqzlvda4x0vdprlbk5sdgmy74h3xcdq";
+    };
+  }
+  {
+    goPackagePath = "github.com/matttproud/golang_protobuf_extensions";
+    fetch = {
+      type = "git";
+      url = "https://github.com/matttproud/golang_protobuf_extensions";
+      rev = "c12348ce28de40eed0136aa2b644d0ee0650e56c";
+      sha256 = "1d0c1isd2lk9pnfq2nk0aih356j30k3h1gi2w0ixsivi5csl7jya";
+    };
+  }
+  {
+    goPackagePath = "github.com/miekg/dns";
+    fetch = {
+      type = "git";
+      url = "https://github.com/miekg/dns";
+      rev = "9c76f9827e170bfcd354c2cb02a6fd428faf81a6";
+      sha256 = "0yym4jr15cqwlppnqfsp92i7p1ir12ys695wffb3in7gnnm0d38n";
+    };
+  }
+  {
+    goPackagePath = "github.com/prometheus/client_golang";
+    fetch = {
+      type = "git";
+      url = "https://github.com/prometheus/client_golang";
+      rev = "82f5ff156b29e276022b1a958f7d385870fb9814";
+      sha256 = "111j329yrlgvh73dm80gawwxsh9dgjkw74254kyj5c2rfmra7znz";
+    };
+  }
+  {
+    goPackagePath = "github.com/prometheus/client_model";
+    fetch = {
+      type = "git";
+      url = "https://github.com/prometheus/client_model";
+      rev = "99fa1f4be8e564e8a6b613da7fa6f46c9edafc6c";
+      sha256 = "19y4ywsivhpxj7ikf2j0gm9k3cmyw37qcbfi78n526jxcc7kw998";
+    };
+  }
+  {
+    goPackagePath = "github.com/prometheus/common";
+    fetch = {
+      type = "git";
+      url = "https://github.com/prometheus/common";
+      rev = "d811d2e9bf898806ecfb6ef6296774b13ffc314c";
+      sha256 = "0r4067r4ysmljksqw3awcxx5qplqhykahc5igdzgkky7i4bvaik1";
+    };
+  }
+  {
+    goPackagePath = "github.com/prometheus/procfs";
+    fetch = {
+      type = "git";
+      url = "https://github.com/prometheus/procfs";
+      rev = "8b1c2da0d56deffdbb9e48d4414b4e674bd8083e";
+      sha256 = "0x128p15h35mgwqxkigfkk1lfrcz9g697ahl8v6xp9kwvcqvjrrf";
+    };
+  }
+  {
+    goPackagePath = "golang.org/x/net";
+    fetch = {
+      type = "git";
+      url = "https://go.googlesource.com/net";
+      rev = "640f4622ab692b87c2f3a94265e6f579fe38263d";
+      sha256 = "097m4qhcljhp180171j5fjhq4740iirfkkajfd7yrxqhp4s9hljx";
+    };
+  }
+  {
+    goPackagePath = "golang.org/x/sync";
+    fetch = {
+      type = "git";
+      url = "https://go.googlesource.com/sync";
+      rev = "1d60e4601c6fd243af51cc01ddf169918a5407ca";
+      sha256 = "046jlanz2lkxq1r57x9bl6s4cvfqaic6p2xybsj8mq1120jv4rs6";
+    };
+  }
+]

pkgs/servers/monitoring/prometheus/dnsmasq-exporter.nix

@@ -0,0 +1,23 @@
+{ stdenv, buildGoPackage, fetchFromGitHub }:
+
+buildGoPackage rec {
+  name = "dnsmasq_exporter-unstable-2018-05-05";
+
+  goPackagePath = "github.com/google/dnsmasq_exporter";
+
+  src = fetchFromGitHub {
+    owner = "google";
+    repo = "dnsmasq_exporter";
+    sha256 = "1kzq4h7z28xadx425nbgxadk62yiz6279d300fyiyi83hwq0ay8c";
+    rev = "e1f281b435bbefbb2d17fc57c051ede0ab973c59";
+  };
+
+  goDeps = ./dnsmasq-exporter-deps.nix;
+
+  meta = with stdenv.lib; {
+    inherit (src.meta) homepage;
+    description = "A dnsmasq exporter for Prometheus";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ willibutz ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -12852,6 +12852,7 @@ with pkgs;
   prometheus-blackbox-exporter = callPackage ../servers/monitoring/prometheus/blackbox-exporter.nix { };
   prometheus-collectd-exporter = callPackage ../servers/monitoring/prometheus/collectd-exporter.nix { };
   prometheus-consul-exporter = callPackage ../servers/monitoring/prometheus/consul-exporter.nix { };
+  prometheus-dnsmasq-exporter = callPackage ../servers/monitoring/prometheus/dnsmasq-exporter.nix { };
   prometheus-dovecot-exporter = callPackage ../servers/monitoring/prometheus/dovecot-exporter.nix { };
   prometheus-fritzbox-exporter = callPackage ../servers/monitoring/prometheus/fritzbox-exporter.nix { };
   prometheus-haproxy-exporter = callPackage ../servers/monitoring/prometheus/haproxy-exporter.nix { };