fix(inputs.prometheus): Correctly handle host header (#15195)

2024-04-19 14:10:32 -06:00 · 2024-04-19 14:10:32 -06:00 · 6bb3d32da9
parent f5d393ca14
commit 6bb3d32da9
1 changed files with 5 additions and 1 deletions
--- a/plugins/inputs/prometheus/prometheus.go
+++ b/plugins/inputs/prometheus/prometheus.go
@ -437,7 +437,11 @@ func (p *Prometheus) gatherURL(u URLAndAddress, acc telegraf.Accumulator) (map[s
 	}

 	for key, value := range p.HTTPHeaders {
-		req.Header.Set(key, value)
+		if strings.EqualFold(key, "host") {
+			req.Host = value
+		} else {
+			req.Header.Set(key, value)
+		}
 	}

 	var err error