From 8d98750e8f47fcc269b0ef7d9aa502255b8172c4 Mon Sep 17 00:00:00 2001
From: Julius Volz <julius.volz@gmail.com>
Date: Fri, 18 Jun 2021 11:49:30 +0200
Subject: [PATCH] Simplify float formatting for HTTP SD refresh interval
 (#8961)

Signed-off-by: Julius Volz <julius.volz@gmail.com>
---
 discovery/http/http.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/discovery/http/http.go b/discovery/http/http.go
index a45b1cdc7..9c6db98a4 100644
--- a/discovery/http/http.go
+++ b/discovery/http/http.go
@@ -21,6 +21,7 @@ import (
 	"io/ioutil"
 	"net/http"
 	"net/url"
+	"strconv"
 	"time"
 
 	"github.com/go-kit/log"
@@ -136,7 +137,7 @@ func (d *Discovery) refresh(ctx context.Context) ([]*targetgroup.Group, error) {
 	}
 	req.Header.Set("User-Agent", userAgent)
 	req.Header.Set("Accept", "application/json")
-	req.Header.Set("X-Prometheus-Refresh-Interval-Seconds", fmt.Sprintf("%f", d.refreshInterval.Seconds()))
+	req.Header.Set("X-Prometheus-Refresh-Interval-Seconds", strconv.FormatFloat(d.refreshInterval.Seconds(), 'f', -1, 64))
 
 	resp, err := d.client.Do(req.WithContext(ctx))
 	if err != nil {