support env var for prom instances

flashcatcloud · Jun 28, 2022 · aaf201b · aaf201b
1 parent 6fa7e57
commit aaf201b
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/inputs/prometheus/prometheus.go b/inputs/prometheus/prometheus.go
@@ -57,6 +57,11 @@ func (ins *Instance) Init() error {
 	} else if len(ins.URLs) == 0 {
 		return types.ErrInstancesEmpty
 	}
+	for i, u := range ins.URLs {
+		ins.URLs[i] = strings.Replace(u, "$hostname", config.Config.GetHostname(), -1)
+		ins.URLs[i] = strings.Replace(u, "$ip", config.Config.Global.IP, -1)
+		ins.URLs[i] = os.Expand(u, config.GetEnv)
+	}
 
 	if ins.Timeout <= 0 {
 		ins.Timeout = config.Duration(time.Second * 3)