From df04f36b0f399b0d461c5f6a1ac4b80934c77523 Mon Sep 17 00:00:00 2001
From: Pieter Lexis <pieter.lexis@powerdns.com>
Date: Wed, 17 Jun 2020 14:28:03 +0200
Subject: [PATCH] auth: Add version as prometheus metric

---
 pdns/ws-auth.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pdns/ws-auth.cc b/pdns/ws-auth.cc
index 078a96cf3c..4209eae058 100644
--- a/pdns/ws-auth.cc
+++ b/pdns/ws-auth.cc
@@ -2274,6 +2274,10 @@ static void prometheusMetrics(HttpRequest* req, HttpResponse* resp) {
     output << prometheusMetricName << " " << S.read(metricName) << "\n";
   }
 
+  output << "# HELP pdns_auth_info " << "Info from PowerDNS, value is always 1" << "\n";
+  output << "# TYPE pdns_auth_info " << "gauge" << "\n";
+  output << "pdns_auth_info{version=\"" << VERSION << "\"} " << "1" << "\n";
+
   resp->body = output.str();
   resp->headers["Content-Type"] = "text/plain";
   resp->status = 200;
-- 
2.47.2