Merge pull request #133726 from deshaw/fastly-exporter

prometheus-fastly-exporter: init at v6.1.0

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

@@ -32,6 +32,7 @@ let
     "dnsmasq"
     "domain"
     "dovecot"
+    "fastly"
     "fritzbox"
     "influxdb"
     "json"

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

@@ -0,0 +1,41 @@
+{ config, lib, pkgs, options }:
+
+with lib;
+
+let cfg = config.services.prometheus.exporters.fastly;
+in
+{
+  port = 9118;
+  extraOpts = {
+    debug = mkEnableOption "Debug logging mode for fastly-exporter";
+
+    configFile = mkOption {
+      type = types.nullOr types.path;
+      default = null;
+      description = ''
+        Path to a fastly-exporter configuration file.
+        Example one can be generated with <literal>fastly-exporter --config-file-example</literal>.
+      '';
+      example = "./fastly-exporter-config.txt";
+    };
+
+    tokenPath = mkOption {
+      type = types.nullOr types.path;
+      apply = final: if final == null then null else toString final;
+      description = ''
+        A run-time path to the token file, which is supposed to be provisioned
+        outside of Nix store.
+      '';
+    };
+  };
+  serviceOpts = {
+    script = ''
+      ${optionalString (cfg.tokenPath != null)
+      "export FASTLY_API_TOKEN=$(cat ${toString cfg.tokenPath})"}
+      ${pkgs.fastly-exporter}/bin/fastly-exporter \
+        -endpoint http://${cfg.listenAddress}:${cfg.port}/metrics
+        ${optionalString cfg.debug "-debug true"} \
+        ${optionalString cfg.configFile "-config-file ${cfg.configFile}"}
+    '';
+  };
+}

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

@@ -0,0 +1,22 @@
+{ lib, buildGoModule, fetchFromGitHub }:
+
+buildGoModule rec {
+  pname = "fastly-exporter";
+  version = "6.1.0";
+
+  src = fetchFromGitHub {
+    owner = "peterbourgon";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0my0pcxix5rk73m5ciz513nwmjcm7vjs6r8wg3vddm0xixv7zq94";
+  };
+
+  vendorSha256 = "1w9asky8h8l5gc0c6cv89m38qw50hyhma8qbsw3zirplhk9mb3r2";
+
+  meta = with lib; {
+    description = "Prometheus exporter for the Fastly Real-time Analytics API";
+    homepage = "https://github.com/peterbourgon/fastly-exporter";
+    license = licenses.asl20;
+    maintainers = teams.deshaw.members;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -20735,6 +20735,7 @@ with pkgs;
   prometheus-dnsmasq-exporter = callPackage ../servers/monitoring/prometheus/dnsmasq-exporter.nix { };
   prometheus-dovecot-exporter = callPackage ../servers/monitoring/prometheus/dovecot-exporter.nix { };
   prometheus-domain-exporter = callPackage ../servers/monitoring/prometheus/domain-exporter.nix { };
+  prometheus-fastly-exporter = callPackage ../servers/monitoring/prometheus/fastly-exporter.nix { };
   prometheus-flow-exporter = callPackage ../servers/monitoring/prometheus/flow-exporter.nix { };
   prometheus-fritzbox-exporter = callPackage ../servers/monitoring/prometheus/fritzbox-exporter.nix { };
   prometheus-gitlab-ci-pipelines-exporter = callPackage ../servers/monitoring/prometheus/gitlab-ci-pipelines-exporter.nix { };