[#409] node: Do not sent initial bootstrap under maintenance

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

cmd/frostfs-node/netmap.go

@@ -225,6 +225,10 @@ func addNewEpochNotificationHandlers(c *cfg) {
 // Must be called after initNetmapService.
 func bootstrapNode(c *cfg) {
 	if c.needBootstrap() {
+		if c.IsMaintenance() {
+			c.log.Info(logs.FrostFSNodeNodeIsUnderMaintenanceSkipInitialBootstrap)
+			return
+		}
 		err := c.bootstrap()
 		fatalOnErrDetails("bootstrap error", err)
 	}
@@ -266,6 +270,10 @@ func initNetmapState(c *cfg) {
 		zap.String("state", stateWord),
 	)
 
+	if ni != nil && ni.IsMaintenance() {
+		c.isMaintenance.Store(true)
+	}
+
 	c.cfgNetmap.state.setCurrentEpoch(epoch)
 	c.cfgNetmap.startEpoch = epoch
 	c.handleLocalNodeInfo(ni)

internal/logs/logs.go

@@ -491,4 +491,5 @@ const (
 	EngineShardsEvacuationFailedToMoveObject                                = "failed to evacuate object to other node"
 	ShardGCFailedToGetExpiredWithLinked                                     = "failed to get expired objects with linked"
 	ShardDeleteCantDeleteFromWriteCache                                     = "can't delete object from write cache"
+	FrostFSNodeNodeIsUnderMaintenanceSkipInitialBootstrap                   = "the node is under maintenance, skip initial bootstrap"
 )