From d037f6fb70269879abe438e64b84a55cb8f57234 Mon Sep 17 00:00:00 2001
From: ale <ale@incal.net>
Date: Thu, 4 Feb 2021 09:19:00 +0000
Subject: [PATCH] Add a metric for the total number of proxied connections
It should allow us to tell apart SSL and non-SSL connections.
---
node/instrumentation.go | 7 +++++++
node/proxy.go | 2 ++
2 files changed, 9 insertions(+)
diff --git a/node/instrumentation.go b/node/instrumentation.go
index ce43213f..6b57e7a4 100644
--- a/node/instrumentation.go
+++ b/node/instrumentation.go
@@ -37,6 +37,13 @@ var (
},
[]string{"stream", "upstream"},
)
+ proxyConnections = prometheus.NewCounterVec(
+ prometheus.CounterOpts{
+ Name: "proxy_connections_total",
+ Help: "Proxy connections.",
+ },
+ []string{"proto"},
+ )
// Node metrics.
icecastUpdateFailed = prometheus.NewGauge(
diff --git a/node/proxy.go b/node/proxy.go
index 4ac131f8..593077c6 100644
--- a/node/proxy.go
+++ b/node/proxy.go
@@ -107,12 +107,14 @@ func doIcecastProxy(rw http.ResponseWriter, req *http.Request, target *url.URL,
// httputil.ReverseProxy (not fully functional for sources, but
// meh).
if req.TLS != nil {
+ proxyConnections.WithLabelValues("https").Inc()
u := *outreq.URL
u.Path = "/"
rp := httputil.NewSingleHostReverseProxy(&u)
rp.ServeHTTP(rw, outreq)
return
}
+ proxyConnections.WithLabelValues("http").Inc()
// Create the upstream connection and write the HTTP request
// to it.
--
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