[#1444] config: Fix data race on morph component init

It could be called for every shard on metabase resync concurrently and
it is possible to get state with initialized client but not initialized
contract hashes.

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

cmd/frostfs-node/accounting.go

@@ -13,9 +13,7 @@ import (
 )
 
 func initAccountingService(ctx context.Context, c *cfg) {
-	if c.cfgMorph.client == nil {
-		initMorphComponents(ctx, c)
-	}
+	c.initMorphComponents(ctx)
 
 	balanceMorphWrapper, err := balance.NewFromMorph(c.cfgMorph.client, c.cfgAccounting.scriptHash, 0)
 	fatalOnErr(err)

cmd/frostfs-node/config.go

@@ -575,6 +575,9 @@ func (c *cfgGRPC) dropConnection(endpoint string) {
 }
 
 type cfgMorph struct {
+	initialized bool
+	guard       sync.Mutex
+
 	client *client.Client
 
 	notaryEnabled bool
@@ -1455,10 +1458,7 @@ func (c *cfg) createTombstoneSource() *tombstone.ExpirationChecker {
 
 func (c *cfg) createContainerInfoProvider(ctx context.Context) container.InfoProvider {
 	return container.NewInfoProvider(func() (container.Source, error) {
-		// threadsafe: called on init or on sighup when morph initialized
-		if c.cfgMorph.client == nil {
-			initMorphComponents(ctx, c)
-		}
+		c.initMorphComponents(ctx)
 		cc, err := containerClient.NewFromMorph(c.cfgMorph.client, c.cfgContainer.scriptHash, 0, containerClient.TryNotary())
 		if err != nil {
 			return nil, err

cmd/frostfs-node/morph.go

@@ -28,7 +28,12 @@ const (
 	notaryDepositRetriesAmount = 300
 )
 
-func initMorphComponents(ctx context.Context, c *cfg) {
+func (c *cfg) initMorphComponents(ctx context.Context) {
+	c.cfgMorph.guard.Lock()
+	defer c.cfgMorph.guard.Unlock()
+	if c.cfgMorph.initialized {
+		return
+	}
 	initMorphClient(ctx, c)
 
 	lookupScriptHashesInNNS(c) // smart contract auto negotiation
@@ -70,6 +75,7 @@ func initMorphComponents(ctx context.Context, c *cfg) {
 
 	c.netMapSource = netmapSource
 	c.cfgNetmap.wrapper = wrap
+	c.cfgMorph.initialized = true
 }
 
 func initMorphClient(ctx context.Context, c *cfg) {

cmd/frostfs-node/netmap.go

@@ -143,9 +143,7 @@ func initNetmapService(ctx context.Context, c *cfg) {
 	parseAttributes(c)
 	c.cfgNodeInfo.localInfo.SetStatus(netmapSDK.Offline)
 
-	if c.cfgMorph.client == nil {
-		initMorphComponents(ctx, c)
-	}
+	c.initMorphComponents(ctx)
 
 	initNetmapState(c)