From 8883f36fe38fc9701f707f9cac8ebcb34d418c46 Mon Sep 17 00:00:00 2001
From: zelig <viktor.tron@gmail.com>
Date: Tue, 7 Feb 2017 00:38:38 +0630
Subject: [PATCH] cmd/swarm: handle SIGTERM unix signal for clean exit

---
 cmd/swarm/main.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/cmd/swarm/main.go b/cmd/swarm/main.go
index 14adc3b10..5661b3f6e 100644
--- a/cmd/swarm/main.go
+++ b/cmd/swarm/main.go
@@ -21,9 +21,11 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"os/signal"
 	"runtime"
 	"strconv"
 	"strings"
+	"syscall"
 
 	"github.com/ethereum/go-ethereum/accounts"
 	"github.com/ethereum/go-ethereum/accounts/keystore"
@@ -271,6 +273,14 @@ func bzzd(ctx *cli.Context) error {
 	stack := utils.MakeNode(ctx, clientIdentifier, gitCommit)
 	registerBzzService(ctx, stack)
 	utils.StartNode(stack)
+	go func() {
+		sigc := make(chan os.Signal, 1)
+		signal.Notify(sigc, syscall.SIGTERM)
+		defer signal.Stop(sigc)
+		<-sigc
+		glog.V(logger.Info).Infoln("Got sigterm, shutting down...")
+		stack.Stop()
+	}()
 	networkId := ctx.GlobalUint64(SwarmNetworkIdFlag.Name)
 	// Add bootnodes as initial peers.
 	if ctx.GlobalIsSet(utils.BootnodesFlag.Name) {