From 508b09327806b83a5dff448ea7cb55d9ed86deaa Mon Sep 17 00:00:00 2001
From: yusing <yusing@6uo.me>
Date: Tue, 11 Feb 2025 07:12:08 +0800
Subject: [PATCH] fix health monitor panic

---
 internal/watcher/health/monitor/monitor.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/internal/watcher/health/monitor/monitor.go b/internal/watcher/health/monitor/monitor.go
index 32a2fd0..b27dd43 100644
--- a/internal/watcher/health/monitor/monitor.go
+++ b/internal/watcher/health/monitor/monitor.go
@@ -164,6 +164,12 @@ func (mon *monitor) String() string {
 // MarshalJSON implements json.Marshaler of HealthMonitor.
 func (mon *monitor) MarshalJSON() ([]byte, error) {
 	res := mon.lastResult
+	if res == nil {
+		res = &health.HealthCheckResult{
+			Healthy: true,
+		}
+	}
+
 	return (&JSONRepresentation{
 		Name:     mon.service,
 		Config:   mon.config,