From: Dan Fuhry <dan@fuhry.com>
Date: Mon, 19 Oct 2026 20:46:44 +0000 (-0400)
Subject: [cmd/prometheus_http_discovery] change listener arg to address-and-port; update labels
X-Git-Url: https://go.fuhry.dev/?a=commitdiff_plain;h=7dc68ad10a7e3bcb265514ba58f7327ef1f16b25;p=runtime.git

[cmd/prometheus_http_discovery] change listener arg to address-and-port; update labels
---

diff --git a/cmd/prometheus_http_discovery/main.go b/cmd/prometheus_http_discovery/main.go
index b286dfb..c180d77 100644
--- a/cmd/prometheus_http_discovery/main.go
+++ b/cmd/prometheus_http_discovery/main.go
@@ -29,7 +29,7 @@ func main() {
 	serverCtx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
-	port := flag.Uint("port", 9102, "port to listen on")
+	listenAddr := flag.String("listen", "[::1]:9102", "address and port to listen on")
 
 	flag.Parse()
 
@@ -81,7 +81,7 @@ func main() {
 				},
 				Labels: map[string]string{
 					"shard": ep.Shard,
-					"host":  ep.Hostname,
+					"_host":  ep.Hostname,
 				},
 			})
 		}
@@ -97,7 +97,7 @@ func main() {
 		w.Write(out)
 	})
 	server := &http.Server{
-		Addr:      fmt.Sprintf("[::1]:%d", *port),
+		Addr:      *listenAddr,
 		TLSConfig: tlsConfig,
 		Handler:   loggingMiddleware.HandlerFunc(),
 	}