[#567] cmd/node: Close cached clients on shutdown

Call `CloseAll` on all `ClientCache` instances on application shutdown.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

cmd/neofs-node/container.go

@@ -72,13 +72,15 @@ func initContainerService(c *cfg) {
 		PlacementBuilder: loadPlacementBuilder,
 	})
 
+	clientCache := cache.NewSDKClientCache() // FIXME: use shared cache
+
 	loadRouter := loadroute.New(
 		loadroute.Prm{
 			LocalServerInfo: c,
 			RemoteWriterProvider: &remoteLoadAnnounceProvider{
 				key:             c.key,
 				loadAddrSrc:     c,
-				clientCache:     cache.NewSDKClientCache(), // FIXME: use shared cache
+				clientCache:     clientCache,
 				deadEndProvider: loadcontroller.SimpleWriterProvider(loadAccumulator),
 			},
 			Builder: routeBuilder,
@@ -86,6 +88,8 @@ func initContainerService(c *cfg) {
 		loadroute.WithLogger(c.log),
 	)
 
+	c.onShutdown(clientCache.CloseAll)
+
 	ctrl := loadcontroller.New(
 		loadcontroller.Prm{
 			LocalMetrics:            loadcontroller.SimpleIteratorProvider(localMetrics),

cmd/neofs-node/object.go

@@ -155,6 +155,8 @@ func initObjectService(c *cfg) {
 	clientCache := cache.NewSDKClientCache(
 		client.WithDialTimeout(c.viper.GetDuration(cfgAPIClientDialTimeout)))
 
+	c.onShutdown(clientCache.CloseAll)
+
 	clientConstructor := &reputationClientConstructor{
 		log:              c.log,
 		nmSrc:            c.cfgObject.netMapStorage,

cmd/neofs-node/reputation.go

@@ -90,6 +90,8 @@ func initReputationService(c *cfg) {
 
 	apiClientCache := cache.NewSDKClientCache()
 
+	c.onShutdown(apiClientCache.CloseAll)
+
 	remoteLocalTrustProvider := common.NewRemoteTrustProvider(
 		common.RemoteProviderPrm{
 			LocalAddrSrc:    c,