Add option to exit when disconnected from remote

close #7

README.MD

@@ -75,6 +75,8 @@ debug: false
 record_serve_info: false
 # 跳过第一次同步, 直接启动节点 (debug用)
 skip-first-sync: false
+# 是否在连接断开后直接退出
+exit-when-disconnected: false
 # 日志最长保存时间 (天). 设置为 0 禁用清理过期日志
 log-slots: 7
 # 是否禁用 bmclapi 分发的证书, 同 CLUSTER_BYOC

cluster.go

@@ -196,8 +196,11 @@ func (cr *Cluster) Connect(ctx context.Context) bool {
 		os.Exit(1)
 	}
 	engio.OnDisconnect(func(_ *engine.Socket, err error) {
+		if config.ExitWhenDisconnected {
+			logErrorf("Cluster disconnected from remote; exit.")
+			os.Exit(0x08)
+		}
 		go cr.disconnected()
-		logErrorf("Disconnected: %v", err)
 	})
 	engio.OnRecv(func(_ *engine.Socket, data []byte) {
 		logDebugf("Engine.IO recv: %q", (string)(data))

config.go

@@ -68,6 +68,7 @@ type Config struct {
 	Debug                bool             `yaml:"debug"`
 	RecordServeInfo      bool             `yaml:"record_serve_info"`
 	SkipFirstSync        bool             `yaml:"skip-first-sync"`
+	ExitWhenDisconnected bool             `yaml:"exit-when-disconnected"`
 	LogSlots             int              `yaml:"log-slots"`
 	Byoc                 bool             `yaml:"byoc"`
 	NoOpen               bool             `yaml:"noopen"`
@@ -100,6 +101,7 @@ var defaultConfig = Config{
 	Debug:                false,
 	RecordServeInfo:      false,
 	SkipFirstSync:        false,
+	ExitWhenDisconnected: false,
 	LogSlots:             7,
 	Byoc:                 false,
 	NoOpen:               false,

config.yaml

@@ -1,6 +1,7 @@
 debug: false
 record_serve_info: false
 skip-first-sync: false
+exit-when-disconnected: false
 log-slots: 7
 byoc: false
 noopen: false