[#378] cmd/node: Configure tombstone lifetime

Add `TOMBSTONE_LIFETIME` configuration value of the node which is measured
in NeoFS epoch and is set to 5 by default.

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

cmd/neofs-node/config.go

@@ -145,6 +145,8 @@ const (
 	cfgGCRemoverSleepInt  = "remover_sleep_interval"
 )
 
+const cfgTombstoneLifetime = "tombstone_lifetime"
+
 const (
 	addressSize = 72 // 32 bytes oid, 32 bytes cid, 8 bytes protobuf encoding
 )
@@ -442,6 +444,8 @@ func defaultConfiguration(v *viper.Viper) {
 	v.SetDefault(cfgObjectRangeHashPoolSize, 10)
 
 	v.SetDefault(cfgCtrlSvcAuthorizedKeys, []string{})
+
+	v.SetDefault(cfgTombstoneLifetime, 5)
 }
 
 func (c *cfg) LocalAddress() *network.Address {

cmd/neofs-node/object.go

@@ -8,6 +8,7 @@ import (
 	"github.com/nspcc-dev/neofs-api-go/pkg/owner"
 	"github.com/nspcc-dev/neofs-api-go/v2/object"
 	objectGRPC "github.com/nspcc-dev/neofs-api-go/v2/object/grpc"
+	"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
 	objectCore "github.com/nspcc-dev/neofs-node/pkg/core/object"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine"
 	"github.com/nspcc-dev/neofs-node/pkg/morph/event"
@@ -118,6 +119,16 @@ func (r *localObjectInhumer) DeleteObjects(ts *objectSDK.Address, addr ...*objec
 	}
 }
 
+type delNetInfo struct {
+	netmap.State
+
+	tsLifetime uint64
+}
+
+func (i *delNetInfo) TombstoneLifetime() (uint64, error) {
+	return i.tsLifetime, nil
+}
+
 func initObjectService(c *cfg) {
 	ls := c.cfgObject.cfgLocalStorage.localStorage
 	keyStorage := util.NewKeyStorage(c.key, c.privateTokenStore)
@@ -275,6 +286,10 @@ func initObjectService(c *cfg) {
 		deletesvc.WithHeadService(sGet),
 		deletesvc.WithSearchService(sSearch),
 		deletesvc.WithPutService(sPut),
+		deletesvc.WithNetworkInfo(&delNetInfo{
+			State:      c.cfgNetmap.state,
+			tsLifetime: c.viper.GetUint64(cfgTombstoneLifetime),
+		}),
 	)
 
 	sDeleteV2 := deletesvcV2.NewService(