+ clients: re-read auto-clients from /etc/hosts when SIGHUP is received

home/clients.go

@@ -107,6 +107,12 @@ func (clients *clientsContainer) Init(objects []clientObject, dhcpServer *dhcpd.
 	}
 }
 
+// Reload - reload auto-clients
+func (clients *clientsContainer) Reload() {
+	clients.addFromHostsFile()
+	clients.addFromSystemARP()
+}
+
 type clientObject struct {
 	Name                string   `yaml:"name"`
 	Tags                []string `yaml:"tags"`
@@ -194,8 +200,7 @@ func (clients *clientsContainer) WriteDiskConfig(objects *[]clientObject) {
 
 func (clients *clientsContainer) periodicUpdate() {
 	for {
-		clients.addFromHostsFile()
-		clients.addFromSystemARP()
+		clients.Reload()
 		time.Sleep(clientsUpdatePeriod)
 	}
 }

home/home.go

@@ -116,10 +116,19 @@ func Main(version string, channel string, armVer string) {
 	Context.appSignalChannel = make(chan os.Signal)
 	signal.Notify(Context.appSignalChannel, syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGQUIT)
 	go func() {
-		<-Context.appSignalChannel
-		cleanup()
-		cleanupAlways()
-		os.Exit(0)
+		for {
+			sig := <-Context.appSignalChannel
+			log.Info("Received signal '%s'", sig)
+			switch sig {
+			case syscall.SIGHUP:
+				Context.clients.Reload()
+
+			default:
+				cleanup()
+				cleanupAlways()
+				os.Exit(0)
+			}
+		}
 	}()
 
 	// run the protection