From 8efb92f1dd21c7294aa0b1fd4c4facb506a615c4 Mon Sep 17 00:00:00 2001
From: Hubert Grochowski <hubert.grochowski@saucelabs.com>
Date: Wed, 20 Mar 2024 15:00:20 +0100
Subject: [PATCH] http_proxy: allow specifying middleware prometheus opts

---
 http_proxy.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/http_proxy.go b/http_proxy.go
index 484778e3..fa4bdf10 100644
--- a/http_proxy.go
+++ b/http_proxy.go
@@ -93,6 +93,7 @@ type HTTPProxyConfig struct {
 	ConnectTimeout    time.Duration
 	ReadLimit         SizeSuffix
 	WriteLimit        SizeSuffix
+	PromHTTPOpts      []middleware.PrometheusOpt
 
 	// TestingHTTPHandler uses Martian's [http.Handler] implementation
 	// over [http.Server] instead of the default TCP server.
@@ -366,7 +367,7 @@ func (hp *HTTPProxy) middlewareStack() (martian.RequestResponseModifier, *martia
 	}
 
 	if hp.config.PromRegistry != nil {
-		p := middleware.NewPrometheus(hp.config.PromRegistry, hp.config.PromNamespace)
+		p := middleware.NewPrometheus(hp.config.PromRegistry, hp.config.PromNamespace, hp.config.PromHTTPOpts...)
 		stack.AddRequestModifier(p)
 		stack.AddResponseModifier(p)