From 560da9412218ec012fcd4e217a0dbd2de40b4ada Mon Sep 17 00:00:00 2001
From: Pieter Lexis <pieter.lexis@powerdns.com>
Date: Wed, 17 Jun 2020 14:14:37 +0200
Subject: [PATCH] dnsdist: Add prometheus metric for version number

---
 pdns/dnsdist-web.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pdns/dnsdist-web.cc b/pdns/dnsdist-web.cc
index 5a738ca0ac..92208c5434 100644
--- a/pdns/dnsdist-web.cc
+++ b/pdns/dnsdist-web.cc
@@ -804,6 +804,10 @@ static void connectionThread(int sock, ComboAddress remote)
           }
         }
 
+        output << "# HELP dnsdist_info " << "Info from dnsdist, value is always 1" << "\n";
+        output << "# TYPE dnsdist_info " << "gauge" << "\n";
+        output << "dnsdist_info{version=\"" << VERSION << "\"} " << "1" << "\n";
+
         resp.body = output.str();
         resp.headers["Content-Type"] = "text/plain";
     }
-- 
2.47.3