From 1b839a586bef5d9dbb30b85388c2977b86df4fe5 Mon Sep 17 00:00:00 2001
From: Corbin <cds@corbinsimpson.com>
Date: Sun, 27 Nov 2016 00:15:19 -0800
Subject: [PATCH] prometheus module: add varnishExporter
---
nixos/modules/module-list.nix | 4 +-
.../prometheus/varnish-exporter.nix | 51 +++++++++++++++++++
2 files changed, 54 insertions(+), 1 deletion(-)
create mode 100644 nixos/modules/services/monitoring/prometheus/varnish-exporter.nix
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index df482fbfcaf..db8c5219925 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -308,9 +308,11 @@
./services/monitoring/munin.nix
./services/monitoring/nagios.nix
./services/monitoring/prometheus/default.nix
+ ./services/monitoring/prometheus/alertmanager.nix
./services/monitoring/prometheus/nginx-exporter.nix
./services/monitoring/prometheus/node-exporter.nix
- ./services/monitoring/prometheus/alertmanager.nix
+ ./services/monitoring/prometheus/snmp-exporter.nix
+ ./services/monitoring/prometheus/varnish-exporter.nix
./services/monitoring/riemann.nix
./services/monitoring/riemann-dash.nix
./services/monitoring/riemann-tools.nix
diff --git a/nixos/modules/services/monitoring/prometheus/varnish-exporter.nix b/nixos/modules/services/monitoring/prometheus/varnish-exporter.nix
new file mode 100644
index 00000000000..0f608760e91
--- /dev/null
+++ b/nixos/modules/services/monitoring/prometheus/varnish-exporter.nix
@@ -0,0 +1,51 @@
+{ config, pkgs, lib, ... }:
+
+# Shamelessly cribbed from nginx-exporter.nix. ~ C.
+with lib;
+
+let
+ cfg = config.services.prometheus.varnishExporter;
+in {
+ options = {
+ services.prometheus.varnishExporter = {
+ enable = mkEnableOption "prometheus Varnish exporter";
+
+ port = mkOption {
+ type = types.int;
+ default = 9131;
+ description = ''
+ Port to listen on.
+ '';
+ };
+
+ extraFlags = mkOption {
+ type = types.listOf types.str;
+ default = [];
+ description = ''
+ Extra commandline options when launching the Varnish exporter.
+ '';
+ };
+ };
+ };
+
+ config = mkIf cfg.enable {
+ systemd.services.prometheus-varnish-exporter = {
+ description = "Prometheus exporter for Varnish metrics";
+ unitConfig.Documentation = "https://github.com/jonnenauha/prometheus_varnish_exporter";
+ wantedBy = [ "multi-user.target" ];
+ path = [ pkgs.varnish ];
+ script = ''
+ exec ${pkgs.prometheus-varnish-exporter}/bin/prometheus_varnish_exporter \
+ -web.listen-address :${toString cfg.port} \
+ ${concatStringsSep " \\\n " cfg.extraFlags}
+ '';
+ serviceConfig = {
+ User = "nobody";
+ Restart = "always";
+ PrivateTmp = true;
+ WorkingDirectory = /tmp;
+ ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
+ };
+ };
+ };
+}