fix(agent): flag.Parse() 时机错误导致-server永远为空

agent/main.go

@@ -49,15 +49,21 @@ type Config struct {
 }
 
 func main() {
-	cfg := Config{
-		Server:   *flag.String("server", "", "AIOps 后端上报地址（output/discover 模式不需要）"),
-		Token:    *flag.String("token", "", "Bearer 鉴权令牌"),
-		Hostname: *flag.String("hostname", "", "上报主机名，默认使用系统主机名"),
-		Interval: *flag.Int("interval", 10, "采集与上报间隔，单位：秒"),
-		TopN:     *flag.Int("top-n", 3, "进程 TOP N 数量"),
-	}
+	serverFlag := flag.String("server", "", "AIOps 后端上报地址（output/discover 模式不需要）")
+	tokenFlag := flag.String("token", "", "Bearer 鉴权令牌")
+	hostnameFlag := flag.String("hostname", "", "上报主机名，默认使用系统主机名")
+	intervalFlag := flag.Int("interval", 10, "采集与上报间隔，单位：秒")
+	topNFlag := flag.Int("top-n", 3, "进程 TOP N 数量")
 	flag.Parse()
 
+	cfg := Config{
+		Server:   *serverFlag,
+		Token:    *tokenFlag,
+		Hostname: *hostnameFlag,
+		Interval: *intervalFlag,
+		TopN:     *topNFlag,
+	}
+
 	if cfg.Hostname == "" {
 		if h, err := os.Hostname(); err == nil {
 			cfg.Hostname = h