From b36d6b748548147db5218315e246a594483699b7 Mon Sep 17 00:00:00 2001
From: winfredwz <winfredwz@163.com>
Date: Sun, 25 Jun 2023 01:14:24 +0800
Subject: [PATCH] Add config reload via /-/reload

Signed-off-by: winfredwz <winfredwz@163.com>
---
 cmd/postgres_exporter/main.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/cmd/postgres_exporter/main.go b/cmd/postgres_exporter/main.go
index 7d424b3d..9e45f90b 100644
--- a/cmd/postgres_exporter/main.go
+++ b/cmd/postgres_exporter/main.go
@@ -167,6 +167,13 @@ func main() {
 	}
 
 	http.HandleFunc("/probe", handleProbe(logger, excludedDatabases))
+	http.HandleFunc("/-/reload", func(w http.ResponseWriter, r *http.Request) {
+		if err := c.ReloadConfig(*configFile, logger); err != nil {
+			level.Warn(logger).Log("msg", "Error reloading config", "file", *configFile, "error", err)
+			return
+		}
+		_, _ = w.Write([]byte(`ok`))
+	})
 
 	srv := &http.Server{}
 	if err := web.ListenAndServe(srv, webConfig, logger); err != nil {