From 7a5729ea2b84ecf8f97545f5dcfa43369eef7644 Mon Sep 17 00:00:00 2001
From: Leonard Lyubich <leonard@nspcc.ru>
Date: Tue, 24 Aug 2021 10:43:21 +0300
Subject: [PATCH] [#761] cmd/node: Do not perform bootstrap procedure in relay
 mode

Storage node should not try to register itself in network in relay mode.

Implement `needBootstrap` method which checks if node need to bootstrap.
Call `bootstrap` method in `bootstrapNode` function only on true return.
Skip re-bootstrap logic in new epoch event handler on false return.
Return an error if `ControlService.SetNetmapStatus` is called on relay
node.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
---
 cmd/neofs-node/config.go |  5 +++++
 cmd/neofs-node/netmap.go | 15 ++++++++++++---
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/cmd/neofs-node/config.go b/cmd/neofs-node/config.go
index 6c38b806a..88746cad5 100644
--- a/cmd/neofs-node/config.go
+++ b/cmd/neofs-node/config.go
@@ -443,3 +443,8 @@ func (c *cfg) bootstrap() error {
 
 	return c.cfgNetmap.wrapper.AddPeer(&ni)
 }
+
+// needBootstrap checks if local node should be registered in network on bootup.
+func (c *cfg) needBootstrap() bool {
+	return c.cfgNetmap.needBootstrap
+}
diff --git a/cmd/neofs-node/netmap.go b/cmd/neofs-node/netmap.go
index c5d3504ad..038a059d8 100644
--- a/cmd/neofs-node/netmap.go
+++ b/cmd/neofs-node/netmap.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"bytes"
+	"errors"
 
 	netmapSDK "github.com/nspcc-dev/neofs-api-go/pkg/netmap"
 	netmapV2 "github.com/nspcc-dev/neofs-api-go/v2/netmap"
@@ -113,7 +114,7 @@ func initNetmapService(c *cfg) {
 	})
 
 	addNewEpochAsyncNotificationHandler(c, func(ev event.Event) {
-		if c.cfgNetmap.reBoostrapTurnedOff.Load() { // fixes #470
+		if !c.needBootstrap() || c.cfgNetmap.reBoostrapTurnedOff.Load() { // fixes #470
 			return
 		}
 
@@ -149,8 +150,10 @@ func initNetmapService(c *cfg) {
 func bootstrapNode(c *cfg) {
 	initState(c)
 
-	err := c.bootstrap()
-	fatalOnErrDetails("bootstrap error", err)
+	if c.needBootstrap() {
+		err := c.bootstrap()
+		fatalOnErrDetails("bootstrap error", err)
+	}
 }
 
 func addNetmapNotificationHandler(c *cfg, sTyp string, h event.Handler) {
@@ -228,7 +231,13 @@ func addNewEpochAsyncNotificationHandler(c *cfg, h event.Handler) {
 	)
 }
 
+var errRelayBootstrap = errors.New("setting netmap status is forbidden in relay mode")
+
 func (c *cfg) SetNetmapStatus(st control.NetmapStatus) error {
+	if !c.needBootstrap() {
+		return errRelayBootstrap
+	}
+
 	if st == control.NetmapStatus_ONLINE {
 		c.cfgNetmap.reBoostrapTurnedOff.Store(false)
 		return c.bootstrap()