[#212] reputationsvc: Resolve linters and rename

Resolved containedctx linters.
Renamed context structs and interfaces to more understandble names.

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

cmd/frostfs-node/main.go

@@ -99,7 +99,7 @@ func initApp(ctx context.Context, c *cfg) {
 	initAndLog(c, "accounting", func(c *cfg) { initAccountingService(ctx, c) })
 	initAndLog(c, "container", func(c *cfg) { initContainerService(ctx, c) })
 	initAndLog(c, "session", initSessionService)
-	initAndLog(c, "reputation", initReputationService)
+	initAndLog(c, "reputation", func(c *cfg) { initReputationService(ctx, c) })
 	initAndLog(c, "notification", initNotifications)
 	initAndLog(c, "object", initObjectService)
 	initAndLog(c, "tree", initTreeService)

cmd/frostfs-node/reputation.go

@@ -33,7 +33,7 @@ import (
 	"go.uber.org/zap"
 )
 
-func initReputationService(c *cfg) {
+func initReputationService(ctx context.Context, c *cfg) {
 	wrap, err := repClient.NewFromMorph(c.cfgMorph.client, c.cfgReputation.scriptHash, 0, repClient.TryNotary())
 	fatalOnErr(err)
 
@@ -73,7 +73,7 @@ func initReputationService(c *cfg) {
 
 	c.cfgReputation.localTrustCtrl = createLocalTrustController(c, localTrustLogger, localKey, localTrustRouter)
 
-	addReputationReportHandler(c)
+	addReputationReportHandler(ctx, c)
 
 	server := grpcreputation.New(
 		reputationrpc.NewSignService(
@@ -98,10 +98,10 @@ func initReputationService(c *cfg) {
 	// initialize eigen trust block timer
 	newEigenTrustIterTimer(c)
 
-	addEigenTrustEpochHandler(c, eigenTrustController)
+	addEigenTrustEpochHandler(ctx, c, eigenTrustController)
 }
 
-func addReputationReportHandler(c *cfg) {
+func addReputationReportHandler(ctx context.Context, c *cfg) {
 	addNewEpochAsyncNotificationHandler(
 		c,
 		func(ev event.Event) {
@@ -112,12 +112,12 @@ func addReputationReportHandler(c *cfg) {
 			// report collected values from previous epoch
 			reportPrm.SetEpoch(ev.(netmap.NewEpoch).EpochNumber() - 1)
 
-			c.cfgReputation.localTrustCtrl.Report(reportPrm)
+			c.cfgReputation.localTrustCtrl.Report(ctx, reportPrm)
 		},
 	)
 }
 
-func addEigenTrustEpochHandler(c *cfg, eigenTrustController *eigentrustctrl.Controller) {
+func addEigenTrustEpochHandler(ctx context.Context, c *cfg, eigenTrustController *eigentrustctrl.Controller) {
 	addNewEpochAsyncNotificationHandler(
 		c,
 		func(e event.Event) {
@@ -138,7 +138,7 @@ func addEigenTrustEpochHandler(c *cfg, eigenTrustController *eigentrustctrl.Cont
 			}
 
 			epochTimer, err := ticker.NewIterationsTicker(duration, iterations, func() {
-				eigenTrustController.Continue(
+				eigenTrustController.Continue(ctx,
 					eigentrustctrl.ContinuePrm{
 						Epoch: epoch - 1,
 					},
@@ -286,8 +286,8 @@ func createLocalTrustController(c *cfg, localTrustLogger *logger.Logger, localKe
 type reputationServer struct {
 	*cfg
 	log                *logger.Logger
-	localRouter        reputationcommon.WriterProvider
+	localRouter        *reputationrouter.Router
-	intermediateRouter reputationcommon.WriterProvider
+	intermediateRouter *reputationrouter.Router
 	routeBuilder       reputationrouter.Builder
 }
 
@@ -297,18 +297,17 @@ func (s *reputationServer) AnnounceLocalTrust(ctx context.Context, req *v2reputa
 
 	body := req.GetBody()
 
-	eCtx := &common.EpochContext{
+	ep := &common.EpochProvider{
-		Context: ctx,
 		E: body.GetEpoch(),
 	}
 
-	w, err := s.localRouter.InitWriter(reputationrouter.NewRouteContext(eCtx, passedRoute))
+	w, err := s.localRouter.InitWriter(reputationrouter.NewRouteInfo(ep, passedRoute))
 	if err != nil {
 		return nil, fmt.Errorf("could not initialize local trust writer: %w", err)
 	}
 
 	for _, trust := range body.GetTrusts() {
-		err = s.processLocalTrust(body.GetEpoch(), apiToLocalTrust(&trust, passedRoute[0].PublicKey()), passedRoute, w)
+		err = s.processLocalTrust(ctx, body.GetEpoch(), apiToLocalTrust(&trust, passedRoute[0].PublicKey()), passedRoute, w)
 		if err != nil {
 			return nil, fmt.Errorf("could not write one of local trusts: %w", err)
 		}
@@ -326,9 +325,9 @@ func (s *reputationServer) AnnounceIntermediateResult(ctx context.Context, req *
 
 	body := req.GetBody()
 
-	eiCtx := eigentrust.NewIterContext(ctx, body.GetEpoch(), body.GetIteration())
+	ei := eigentrust.NewEpochIteration(body.GetEpoch(), body.GetIteration())
 
-	w, err := s.intermediateRouter.InitWriter(reputationrouter.NewRouteContext(eiCtx, passedRoute))
+	w, err := s.intermediateRouter.InitWriter(reputationrouter.NewRouteInfo(ei, passedRoute))
 	if err != nil {
 		return nil, fmt.Errorf("could not initialize trust writer: %w", err)
 	}
@@ -337,7 +336,7 @@ func (s *reputationServer) AnnounceIntermediateResult(ctx context.Context, req *
 
 	trust := apiToLocalTrust(v2Trust.GetTrust(), v2Trust.GetTrustingPeer().GetPublicKey())
 
-	err = w.Write(trust)
+	err = w.Write(ctx, trust)
 	if err != nil {
 		return nil, fmt.Errorf("could not write trust: %w", err)
 	}
@@ -348,14 +347,14 @@ func (s *reputationServer) AnnounceIntermediateResult(ctx context.Context, req *
 	return resp, nil
 }
 
-func (s *reputationServer) processLocalTrust(epoch uint64, t reputation.Trust,
+func (s *reputationServer) processLocalTrust(ctx context.Context, epoch uint64, t reputation.Trust,
 	passedRoute []reputationcommon.ServerInfo, w reputationcommon.Writer) error {
 	err := reputationrouter.CheckRoute(s.routeBuilder, epoch, t, passedRoute)
 	if err != nil {
 		return fmt.Errorf("wrong route of reputation trust value: %w", err)
 	}
 
-	return w.Write(t)
+	return w.Write(ctx, t)
 }
 
 // apiToLocalTrust converts v2 Trust to local reputation.Trust, adding trustingPeer.

cmd/frostfs-node/reputation/common/remote.go

@@ -6,7 +6,6 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/client"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/netmap"
 	reputationcommon "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation/common"
-	reputationrouter "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation/common/router"
 	trustcontroller "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation/local/controller"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
 )
@@ -22,12 +21,12 @@ type clientKeyRemoteProvider interface {
 	WithClient(client.Client) reputationcommon.WriterProvider
 }
 
-// remoteTrustProvider is an implementation of reputation RemoteWriterProvider interface.
+// RemoteTrustProvider is an implementation of reputation RemoteWriterProvider interface.
 // It caches clients, checks if it is the end of the route and checks either the current
 // node is a remote target or not.
 //
 // remoteTrustProvider requires to be provided with clientKeyRemoteProvider.
-type remoteTrustProvider struct {
+type RemoteTrustProvider struct {
 	netmapKeys      netmap.AnnouncedKeys
 	deadEndProvider reputationcommon.WriterProvider
 	clientCache     clientCache
@@ -48,7 +47,7 @@ type RemoteProviderPrm struct {
 	Log             *logger.Logger
 }
 
-func NewRemoteTrustProvider(prm RemoteProviderPrm) reputationrouter.RemoteWriterProvider {
+func NewRemoteTrustProvider(prm RemoteProviderPrm) *RemoteTrustProvider {
 	switch {
 	case prm.NetmapKeys == nil:
 		PanicOnPrmValue("NetmapKeys", prm.NetmapKeys)
@@ -62,7 +61,7 @@ func NewRemoteTrustProvider(prm RemoteProviderPrm) reputationrouter.RemoteWriter
 		PanicOnPrmValue("Logger", prm.Log)
 	}
 
-	return &remoteTrustProvider{
+	return &RemoteTrustProvider{
 		netmapKeys:      prm.NetmapKeys,
 		deadEndProvider: prm.DeadEndProvider,
 		clientCache:     prm.ClientCache,
@@ -71,7 +70,7 @@ func NewRemoteTrustProvider(prm RemoteProviderPrm) reputationrouter.RemoteWriter
 	}
 }
 
-func (rtp *remoteTrustProvider) InitRemote(srv reputationcommon.ServerInfo) (reputationcommon.WriterProvider, error) {
+func (rtp *RemoteTrustProvider) InitRemote(srv reputationcommon.ServerInfo) (reputationcommon.WriterProvider, error) {
 	rtp.log.Debug("initializing remote writer provider")
 
 	if srv == nil {

cmd/frostfs-node/reputation/common/util.go

@@ -7,24 +7,21 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation"
 )
 
-// EpochContext is a std context extended with epoch data.
+type EpochProvider struct {
-// nolint: containedctx
-type EpochContext struct {
-	context.Context
 	E uint64
 }
 
-func (ctx *EpochContext) Epoch() uint64 {
+func (ep *EpochProvider) Epoch() uint64 {
-	return ctx.E
+	return ep.E
 }
 
 type NopReputationWriter struct{}
 
-func (NopReputationWriter) Write(reputation.Trust) error {
+func (NopReputationWriter) Write(context.Context, reputation.Trust) error {
 	return nil
 }
 
-func (NopReputationWriter) Close() error {
+func (NopReputationWriter) Close(context.Context) error {
 	return nil
 }
 

cmd/frostfs-node/reputation/intermediate/calculator.go

@@ -1,6 +1,7 @@
 package intermediate
 
 import (
+	"context"
 	"errors"
 	"fmt"
 
@@ -42,15 +43,15 @@ type DaughtersTrustCalculator struct {
 }
 
 // Calculate converts and passes values to the wrapped calculator.
-func (c *DaughtersTrustCalculator) Calculate(ctx eigentrustctrl.IterationContext) {
+func (c *DaughtersTrustCalculator) Calculate(ctx context.Context, iterCtx eigentrustctrl.IterationContext) {
 	calcPrm := eigencalc.CalculatePrm{}
 	epochIteration := eigentrust.EpochIteration{}
 
-	epochIteration.SetEpoch(ctx.Epoch())
+	epochIteration.SetEpoch(iterCtx.Epoch())
-	epochIteration.SetI(ctx.I())
+	epochIteration.SetI(iterCtx.I())
 
-	calcPrm.SetLast(ctx.Last())
+	calcPrm.SetLast(iterCtx.Last())
 	calcPrm.SetEpochIteration(epochIteration)
 
-	c.Calculator.Calculate(calcPrm)
+	c.Calculator.Calculate(ctx, calcPrm)
 }

cmd/frostfs-node/reputation/intermediate/consumers.go

@@ -1,6 +1,8 @@
 package intermediate
 
 import (
+	"context"
+
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation"
 	reputationcommon "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation/common"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation/eigentrust"
@@ -25,32 +27,32 @@ type ConsumerStorageWriterProvider struct {
 type ConsumerTrustWriter struct {
 	log      *logger.Logger
 	storage  *consumerstorage.Storage
-	eiCtx   eigencalc.Context
+	iterInfo eigencalc.EpochIterationInfo
 }
 
-func (w *ConsumerTrustWriter) Write(t reputation.Trust) error {
+func (w *ConsumerTrustWriter) Write(_ context.Context, t reputation.Trust) error {
 	w.log.Debug("writing received consumer's trusts",
-		zap.Uint64("epoch", w.eiCtx.Epoch()),
+		zap.Uint64("epoch", w.iterInfo.Epoch()),
-		zap.Uint32("iteration", w.eiCtx.I()),
+		zap.Uint32("iteration", w.iterInfo.I()),
 		zap.Stringer("trusting_peer", t.TrustingPeer()),
 		zap.Stringer("trusted_peer", t.Peer()),
 	)
 
 	trust := eigentrust.IterationTrust{Trust: t}
 
-	trust.SetEpoch(w.eiCtx.Epoch())
+	trust.SetEpoch(w.iterInfo.Epoch())
-	trust.SetI(w.eiCtx.I())
+	trust.SetI(w.iterInfo.I())
 
 	w.storage.Put(trust)
 	return nil
 }
 
-func (w *ConsumerTrustWriter) Close() error {
+func (w *ConsumerTrustWriter) Close(context.Context) error {
 	return nil
 }
 
-func (s *ConsumerStorageWriterProvider) InitWriter(ctx reputationcommon.Context) (reputationcommon.Writer, error) {
+func (s *ConsumerStorageWriterProvider) InitWriter(ep reputationcommon.EpochProvider) (reputationcommon.Writer, error) {
-	eiCtx, ok := ctx.(eigencalc.Context)
+	iterInfo, ok := ep.(eigencalc.EpochIterationInfo)
 	if !ok {
 		panic(ErrIncorrectContextPanicMsg)
 	}
@@ -58,6 +60,6 @@ func (s *ConsumerStorageWriterProvider) InitWriter(ctx reputationcommon.Context)
 	return &ConsumerTrustWriter{
 		log:      s.Log,
 		storage:  s.Storage,
-		eiCtx:   eiCtx,
+		iterInfo: iterInfo,
 	}, nil
 }

cmd/frostfs-node/reputation/intermediate/contract.go

@@ -51,7 +51,7 @@ type FinalWriterProvider struct {
 }
 
 func (fwp FinalWriterProvider) InitIntermediateWriter(
-	_ eigentrustcalc.Context) (eigentrustcalc.IntermediateWriter, error) {
+	_ eigentrustcalc.EpochIterationInfo) (eigentrustcalc.IntermediateWriter, error) {
 	return &FinalWriter{
 		privatKey: fwp.prm.PrivatKey,
 		pubKey:    fwp.prm.PubKey,

cmd/frostfs-node/reputation/intermediate/daughters.go

@@ -1,6 +1,8 @@
 package intermediate
 
 import (
+	"context"
+
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation"
 	reputationcommon "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation/common"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation/eigentrust/storage/daughters"
@@ -21,28 +23,28 @@ type DaughterStorageWriterProvider struct {
 type DaughterTrustWriter struct {
 	log     *logger.Logger
 	storage *daughters.Storage
-	ctx     reputationcommon.Context
+	ep      reputationcommon.EpochProvider
 }
 
-func (w *DaughterTrustWriter) Write(t reputation.Trust) error {
+func (w *DaughterTrustWriter) Write(_ context.Context, t reputation.Trust) error {
 	w.log.Debug("writing received daughter's trusts",
-		zap.Uint64("epoch", w.ctx.Epoch()),
+		zap.Uint64("epoch", w.ep.Epoch()),
 		zap.Stringer("trusting_peer", t.TrustingPeer()),
 		zap.Stringer("trusted_peer", t.Peer()),
 	)
 
-	w.storage.Put(w.ctx.Epoch(), t)
+	w.storage.Put(w.ep.Epoch(), t)
 	return nil
 }
 
-func (w *DaughterTrustWriter) Close() error {
+func (w *DaughterTrustWriter) Close(context.Context) error {
 	return nil
 }
 
-func (s *DaughterStorageWriterProvider) InitWriter(ctx reputationcommon.Context) (reputationcommon.Writer, error) {
+func (s *DaughterStorageWriterProvider) InitWriter(ep reputationcommon.EpochProvider) (reputationcommon.Writer, error) {
 	return &DaughterTrustWriter{
 		log:     s.Log,
 		storage: s.Storage,
-		ctx:     ctx,
+		ep:      ep,
 	}, nil
 }

cmd/frostfs-node/reputation/intermediate/remote.go

@@ -1,6 +1,7 @@
 package intermediate
 
 import (
+	"context"
 	"crypto/ecdsa"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/reputation/common"
@@ -64,15 +65,15 @@ type TrustWriterProvider struct {
 	log    *logger.Logger
 }
 
-func (twp *TrustWriterProvider) InitWriter(ctx reputationcommon.Context) (reputationcommon.Writer, error) {
+func (twp *TrustWriterProvider) InitWriter(ep reputationcommon.EpochProvider) (reputationcommon.Writer, error) {
-	eiContext, ok := ctx.(eigentrustcalc.Context)
+	iterInfo, ok := ep.(eigentrustcalc.EpochIterationInfo)
 	if !ok {
 		// TODO: #1164 think if this can be done without such limitation
 		panic(ErrIncorrectContextPanicMsg)
 	}
 
 	return &RemoteTrustWriter{
-		eiCtx:  eiContext,
+		iterInfo: iterInfo,
 		client:   twp.client,
 		key:      twp.key,
 		log:      twp.log,
@@ -80,16 +81,16 @@ func (twp *TrustWriterProvider) InitWriter(ctx reputationcommon.Context) (reputa
 }
 
 type RemoteTrustWriter struct {
-	eiCtx  eigentrustcalc.Context
+	iterInfo eigentrustcalc.EpochIterationInfo
 	client   coreclient.Client
 	key      *ecdsa.PrivateKey
 	log      *logger.Logger
 }
 
 // Write sends a trust value to a remote node via ReputationService.AnnounceIntermediateResult RPC.
-func (rtp *RemoteTrustWriter) Write(t reputation.Trust) error {
+func (rtp *RemoteTrustWriter) Write(ctx context.Context, t reputation.Trust) error {
-	epoch := rtp.eiCtx.Epoch()
+	epoch := rtp.iterInfo.Epoch()
-	i := rtp.eiCtx.I()
+	i := rtp.iterInfo.I()
 
 	rtp.log.Debug("announcing trust",
 		zap.Uint64("epoch", epoch),
@@ -108,17 +109,16 @@ func (rtp *RemoteTrustWriter) Write(t reputation.Trust) error {
 
 	var p internalclient.AnnounceIntermediatePrm
 
-	p.SetContext(rtp.eiCtx)
 	p.SetClient(rtp.client)
 	p.SetEpoch(epoch)
 	p.SetIteration(i)
 	p.SetTrust(apiPeerToPeerTrust)
 
-	_, err := internalclient.AnnounceIntermediate(p)
+	_, err := internalclient.AnnounceIntermediate(ctx, p)
 
 	return err
 }
 
-func (rtp *RemoteTrustWriter) Close() error {
+func (rtp *RemoteTrustWriter) Close(context.Context) error {
 	return nil
 }

cmd/frostfs-node/reputation/intermediate/storage.go

@@ -18,7 +18,7 @@ type DaughterTrustIteratorProvider struct {
 
 // InitDaughterIterator returns an iterator over the received
 // local trusts for ctx.Epoch() epoch from daughter p.
-func (ip *DaughterTrustIteratorProvider) InitDaughterIterator(ctx eigentrustcalc.Context,
+func (ip *DaughterTrustIteratorProvider) InitDaughterIterator(ctx eigentrustcalc.EpochIterationInfo,
 	p apireputation.PeerID) (eigentrustcalc.TrustIterator, error) {
 	epoch := ctx.Epoch()
 
@@ -34,7 +34,7 @@ func (ip *DaughterTrustIteratorProvider) InitDaughterIterator(ctx eigentrustcalc
 // daughters of the current node(manager) and all local
 // trusts received from them for ctx.Epoch() epoch.
 func (ip *DaughterTrustIteratorProvider) InitAllDaughtersIterator(
-	ctx eigentrustcalc.Context) (eigentrustcalc.PeerTrustsIterator, error) {
+	ctx eigentrustcalc.EpochIterationInfo) (eigentrustcalc.PeerTrustsIterator, error) {
 	epoch := ctx.Epoch()
 
 	iter, ok := ip.DaughterStorage.AllDaughterTrusts(epoch)
@@ -49,7 +49,7 @@ func (ip *DaughterTrustIteratorProvider) InitAllDaughtersIterator(
 // of the current node(manager) and all their consumers' local
 // trusts for ctx.Epoch() epoch and ctx.I() iteration.
 func (ip *DaughterTrustIteratorProvider) InitConsumersIterator(
-	ctx eigentrustcalc.Context) (eigentrustcalc.PeerTrustsIterator, error) {
+	ctx eigentrustcalc.EpochIterationInfo) (eigentrustcalc.PeerTrustsIterator, error) {
 	epoch, iter := ctx.Epoch(), ctx.I()
 
 	consumerIterator, ok := ip.ConsumerStorage.Consumers(epoch, iter)

cmd/frostfs-node/reputation/internal/client/client.go

@@ -9,11 +9,8 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/reputation"
 )
 
-// nolint: containedctx
 type commonPrm struct {
 	cli coreclient.Client
-
-	ctx context.Context
 }
 
 // SetClient sets the base client for FrostFS API communication.
@@ -23,13 +20,6 @@ func (x *commonPrm) SetClient(cli coreclient.Client) {
 	x.cli = cli
 }
 
-// SetContext sets context.Context for network communication.
-//
-// Required parameter.
-func (x *commonPrm) SetContext(ctx context.Context) {
-	x.ctx = ctx
-}
-
 // AnnounceLocalPrm groups parameters of AnnounceLocal operation.
 type AnnounceLocalPrm struct {
 	commonPrm
@@ -55,10 +45,10 @@ type AnnounceLocalRes struct{}
 // Client, context and key must be set.
 //
 // Returns any error which prevented the operation from completing correctly in error return.
-func AnnounceLocal(prm AnnounceLocalPrm) (res AnnounceLocalRes, err error) {
+func AnnounceLocal(ctx context.Context, prm AnnounceLocalPrm) (res AnnounceLocalRes, err error) {
 	var cliRes *client.ResAnnounceLocalTrust
 
-	cliRes, err = prm.cli.AnnounceLocalTrust(prm.ctx, prm.cliPrm)
+	cliRes, err = prm.cli.AnnounceLocalTrust(ctx, prm.cliPrm)
 	if err == nil {
 		// pull out an error from status
 		err = apistatus.ErrFromStatus(cliRes.Status())
@@ -98,10 +88,10 @@ type AnnounceIntermediateRes struct{}
 // Client, context and key must be set.
 //
 // Returns any error which prevented the operation from completing correctly in error return.
-func AnnounceIntermediate(prm AnnounceIntermediatePrm) (res AnnounceIntermediateRes, err error) {
+func AnnounceIntermediate(ctx context.Context, prm AnnounceIntermediatePrm) (res AnnounceIntermediateRes, err error) {
 	var cliRes *client.ResAnnounceIntermediateTrust
 
-	cliRes, err = prm.cli.AnnounceIntermediateTrust(prm.ctx, prm.cliPrm)
+	cliRes, err = prm.cli.AnnounceIntermediateTrust(ctx, prm.cliPrm)
 	if err == nil {
 		// pull out an error from status
 		err = apistatus.ErrFromStatus(cliRes.Status())

cmd/frostfs-node/reputation/local/remote.go

@@ -1,6 +1,7 @@
 package local
 
 import (
+	"context"
 	"crypto/ecdsa"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/reputation/common"
@@ -63,9 +64,9 @@ type TrustWriterProvider struct {
 	log    *logger.Logger
 }
 
-func (twp *TrustWriterProvider) InitWriter(ctx reputationcommon.Context) (reputationcommon.Writer, error) {
+func (twp *TrustWriterProvider) InitWriter(ep reputationcommon.EpochProvider) (reputationcommon.Writer, error) {
 	return &RemoteTrustWriter{
-		ctx:    ctx,
+		ep:     ep,
 		client: twp.client,
 		key:    twp.key,
 		log:    twp.log,
@@ -73,7 +74,7 @@ func (twp *TrustWriterProvider) InitWriter(ctx reputationcommon.Context) (reputa
 }
 
 type RemoteTrustWriter struct {
-	ctx    reputationcommon.Context
+	ep     reputationcommon.EpochProvider
 	client coreclient.Client
 	key    *ecdsa.PrivateKey
 	log    *logger.Logger
@@ -81,7 +82,7 @@ type RemoteTrustWriter struct {
 	buf []reputationapi.Trust
 }
 
-func (rtp *RemoteTrustWriter) Write(t reputation.Trust) error {
+func (rtp *RemoteTrustWriter) Write(_ context.Context, t reputation.Trust) error {
 	var apiTrust reputationapi.Trust
 
 	apiTrust.SetValue(t.Value().Float64())
@@ -92,8 +93,8 @@ func (rtp *RemoteTrustWriter) Write(t reputation.Trust) error {
 	return nil
 }
 
-func (rtp *RemoteTrustWriter) Close() error {
+func (rtp *RemoteTrustWriter) Close(ctx context.Context) error {
-	epoch := rtp.ctx.Epoch()
+	epoch := rtp.ep.Epoch()
 
 	rtp.log.Debug("announcing trusts",
 		zap.Uint64("epoch", epoch),
@@ -101,12 +102,11 @@ func (rtp *RemoteTrustWriter) Close() error {
 
 	var prm internalclient.AnnounceLocalPrm
 
-	prm.SetContext(rtp.ctx)
 	prm.SetClient(rtp.client)
 	prm.SetEpoch(epoch)
 	prm.SetTrusts(rtp.buf)
 
-	_, err := internalclient.AnnounceLocal(prm)
+	_, err := internalclient.AnnounceLocal(ctx, prm)
 
 	return err
 }

cmd/frostfs-node/reputation/local/storage.go

@@ -24,8 +24,8 @@ type TrustStorage struct {
 	LocalKey []byte
 }
 
-func (s *TrustStorage) InitIterator(ctx reputationcommon.Context) (trustcontroller.Iterator, error) {
+func (s *TrustStorage) InitIterator(ep reputationcommon.EpochProvider) (trustcontroller.Iterator, error) {
-	epoch := ctx.Epoch()
+	epoch := ep.Epoch()
 
 	s.Log.Debug("initializing iterator over trusts",
 		zap.Uint64("epoch", epoch),
@@ -37,14 +37,14 @@ func (s *TrustStorage) InitIterator(ctx reputationcommon.Context) (trustcontroll
 	}
 
 	return &TrustIterator{
-		ctx:          ctx,
+		ep:           ep,
 		storage:      s,
 		epochStorage: epochStorage,
 	}, nil
 }
 
 type TrustIterator struct {
-	ctx reputationcommon.Context
+	ep reputationcommon.EpochProvider
 
 	storage *TrustStorage
 
@@ -59,7 +59,7 @@ func (it *TrustIterator) Iterate(h reputation.TrustHandler) error {
 		}
 	}
 
-	nm, err := it.storage.NmSrc.GetNetMapByEpoch(it.ctx.Epoch())
+	nm, err := it.storage.NmSrc.GetNetMapByEpoch(it.ep.Epoch())
 	if err != nil {
 		return err
 	}

pkg/services/reputation/common/deps.go

@@ -2,17 +2,12 @@ package common
 
 import (
 	"context"
-	"io"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation"
 	apireputation "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/reputation"
 )
 
-// Context wraps stdlib context
+type EpochProvider interface {
-// with accompanying meta values.
-type Context interface {
-	context.Context
-
 	// Must return epoch number to select the values.
 	Epoch() uint64
 }
@@ -30,7 +25,7 @@ type Writer interface {
 	// Close operation.
 	//
 	// Write must not be called after Close.
-	Write(reputation.Trust) error
+	Write(context.Context, reputation.Trust) error
 
 	// Close exits with method-providing Writer.
 	//
@@ -38,7 +33,7 @@ type Writer interface {
 	// the Close's return.
 	//
 	// Methods must not be called after Close.
-	io.Closer
+	Close(context.Context) error
 }
 
 // WriterProvider is a group of methods provided
@@ -52,7 +47,7 @@ type WriterProvider interface {
 	//
 	// Implementations can have different logic for different
 	// contexts, so specific ones may document their own behavior.
-	InitWriter(Context) (Writer, error)
+	InitWriter(EpochProvider) (Writer, error)
 }
 
 // ManagerBuilder defines an interface for providing a list

pkg/services/reputation/common/router/calls.go

@@ -1,6 +1,7 @@
 package router
 
 import (
+	"context"
 	"encoding/hex"
 	"sync"
 
@@ -9,19 +10,19 @@ import (
 	"go.uber.org/zap"
 )
 
-// routeContext wraps context with additional passed
+// RouteInfo wraps epoch provider with additional passed
 // route data. It is only used inside Router and is
 // not passed in any external methods.
-type routeContext struct {
+type RouteInfo struct {
-	common.Context
+	common.EpochProvider
 
 	passedRoute []common.ServerInfo
 }
 
-// NewRouteContext wraps the main context of value passing with its traversal route and epoch.
+// NewRouteInfo wraps the main context of value passing with its traversal route and epoch.
-func NewRouteContext(ctx common.Context, passed []common.ServerInfo) common.Context {
+func NewRouteInfo(ep common.EpochProvider, passed []common.ServerInfo) *RouteInfo {
-	return &routeContext{
+	return &RouteInfo{
-		Context:     ctx,
+		EpochProvider: ep,
 		passedRoute:   passed,
 	}
 }
@@ -29,7 +30,7 @@ func NewRouteContext(ctx common.Context, passed []common.ServerInfo) common.Cont
 type trustWriter struct {
 	router *Router
 
-	routeCtx *routeContext
+	routeInfo *RouteInfo
 
 	routeMtx sync.RWMutex
 	mServers map[string]common.Writer
@@ -37,7 +38,7 @@ type trustWriter struct {
 
 // InitWriter initializes and returns Writer that sends each value to its next route point.
 //
-// If ctx was created by NewRouteContext, then the traversed route is taken into account,
+// If ep was created by NewRouteInfo, then the traversed route is taken into account,
 // and the value will be sent to its continuation. Otherwise, the route will be laid
 // from scratch and the value will be sent to its primary point.
 //
@@ -49,31 +50,31 @@ type trustWriter struct {
 // runtime and never returns an error.
 //
 // Always returns nil error.
-func (r *Router) InitWriter(ctx common.Context) (common.Writer, error) {
+func (r *Router) InitWriter(ep common.EpochProvider) (common.Writer, error) {
 	var (
-		routeCtx *routeContext
+		routeInfo *RouteInfo
 		ok        bool
 	)
 
-	if routeCtx, ok = ctx.(*routeContext); !ok {
+	if routeInfo, ok = ep.(*RouteInfo); !ok {
-		routeCtx = &routeContext{
+		routeInfo = &RouteInfo{
-			Context:     ctx,
+			EpochProvider: ep,
 			passedRoute:   []common.ServerInfo{r.localSrvInfo},
 		}
 	}
 
 	return &trustWriter{
 		router:    r,
-		routeCtx: routeCtx,
+		routeInfo: routeInfo,
 		mServers:  make(map[string]common.Writer),
 	}, nil
 }
 
-func (w *trustWriter) Write(t reputation.Trust) error {
+func (w *trustWriter) Write(ctx context.Context, t reputation.Trust) error {
 	w.routeMtx.Lock()
 	defer w.routeMtx.Unlock()
 
-	route, err := w.router.routeBuilder.NextStage(w.routeCtx.Epoch(), t, w.routeCtx.passedRoute)
+	route, err := w.router.routeBuilder.NextStage(w.routeInfo.Epoch(), t, w.routeInfo.passedRoute)
 	if err != nil {
 		return err
 	} else if len(route) == 0 {
@@ -99,7 +100,7 @@ func (w *trustWriter) Write(t reputation.Trust) error {
 			}
 
 			// init writer with original context wrapped in routeContext
-			remoteWriter, err = provider.InitWriter(w.routeCtx.Context)
+			remoteWriter, err = provider.InitWriter(w.routeInfo.EpochProvider)
 			if err != nil {
 				w.router.log.Debug("could not initialize writer",
 					zap.String("error", err.Error()),
@@ -111,7 +112,7 @@ func (w *trustWriter) Write(t reputation.Trust) error {
 			w.mServers[key] = remoteWriter
 		}
 
-		err := remoteWriter.Write(t)
+		err := remoteWriter.Write(ctx, t)
 		if err != nil {
 			w.router.log.Debug("could not write the value",
 				zap.String("error", err.Error()),
@@ -122,9 +123,9 @@ func (w *trustWriter) Write(t reputation.Trust) error {
 	return nil
 }
 
-func (w *trustWriter) Close() error {
+func (w *trustWriter) Close(ctx context.Context) error {
 	for key, wRemote := range w.mServers {
-		err := wRemote.Close()
+		err := wRemote.Close(ctx)
 		if err != nil {
 			w.router.log.Debug("could not close remote server writer",
 				zap.String("key", key),

pkg/services/reputation/eigentrust/calculator/calls.go

@@ -23,7 +23,7 @@ func (p *CalculatePrm) SetEpochIteration(ei eigentrust.EpochIteration) {
 	p.ei = ei
 }
 
-func (c *Calculator) Calculate(prm CalculatePrm) {
+func (c *Calculator) Calculate(ctx context.Context, prm CalculatePrm) {
 	alpha, err := c.prm.AlphaProvider.EigenTrustAlpha()
 	if err != nil {
 		c.opts.log.Debug(
@@ -36,28 +36,25 @@ func (c *Calculator) Calculate(prm CalculatePrm) {
 	c.alpha = reputation.TrustValueFromFloat64(alpha)
 	c.beta = reputation.TrustValueFromFloat64(1 - alpha)
 
-	ctx := eigentrust.IterContext{
+	epochIteration := prm.ei
-		Context:        context.Background(),
-		EpochIteration: prm.ei,
-	}
 
-	iter := ctx.I()
+	iter := epochIteration.I()
 
 	log := c.opts.log.With(
-		zap.Uint64("epoch", ctx.Epoch()),
+		zap.Uint64("epoch", epochIteration.Epoch()),
 		zap.Uint32("iteration", iter),
 	)
 
 	if iter == 0 {
-		c.sendInitialValues(ctx)
+		c.sendInitialValues(ctx, epochIteration)
 		return
 	}
 
 	// decrement iteration number to select the values collected
 	// on the previous stage
-	ctx.SetI(iter - 1)
+	epochIteration.SetI(iter - 1)
 
-	consumersIter, err := c.prm.DaughterTrustSource.InitConsumersIterator(ctx)
+	consumersIter, err := c.prm.DaughterTrustSource.InitConsumersIterator(epochIteration)
 	if err != nil {
 		log.Debug("consumers trust iterator's init failure",
 			zap.String("error", err.Error()),
@@ -67,13 +64,13 @@ func (c *Calculator) Calculate(prm CalculatePrm) {
 	}
 
 	// continue with initial iteration number
-	ctx.SetI(iter)
+	epochIteration.SetI(iter)
 
 	err = consumersIter.Iterate(func(daughter apireputation.PeerID, iter TrustIterator) error {
 		err := c.prm.WorkerPool.Submit(func() {
-			c.iterateDaughter(iterDaughterPrm{
+			c.iterateDaughter(ctx, iterDaughterPrm{
 				lastIter:      prm.last,
-				ctx:           ctx,
+				ei:            epochIteration,
 				id:            daughter,
 				consumersIter: iter,
 			})
@@ -97,7 +94,7 @@ func (c *Calculator) Calculate(prm CalculatePrm) {
 type iterDaughterPrm struct {
 	lastIter bool
 
-	ctx Context
+	ei EpochIterationInfo
 
 	id apireputation.PeerID
 
@@ -105,7 +102,7 @@ type iterDaughterPrm struct {
 }
 
 // nolint: funlen
-func (c *Calculator) iterateDaughter(p iterDaughterPrm) {
+func (c *Calculator) iterateDaughter(ctx context.Context, p iterDaughterPrm) {
 	initTrust, err := c.prm.InitialTrustSource.InitialTrust(p.id)
 	if err != nil {
 		c.opts.log.Debug("get initial trust failure",
@@ -116,7 +113,7 @@ func (c *Calculator) iterateDaughter(p iterDaughterPrm) {
 		return
 	}
 
-	daughterIter, err := c.prm.DaughterTrustSource.InitDaughterIterator(p.ctx, p.id)
+	daughterIter, err := c.prm.DaughterTrustSource.InitDaughterIterator(p.ei, p.id)
 	if err != nil {
 		c.opts.log.Debug("daughter trust iterator's init failure",
 			zap.String("error", err.Error()),
@@ -130,8 +127,8 @@ func (c *Calculator) iterateDaughter(p iterDaughterPrm) {
 	err = p.consumersIter.Iterate(func(trust reputation.Trust) error {
 		if !p.lastIter {
 			select {
-			case <-p.ctx.Done():
+			case <-ctx.Done():
-				return p.ctx.Err()
+				return ctx.Err()
 			default:
 			}
 		}
@@ -155,12 +152,12 @@ func (c *Calculator) iterateDaughter(p iterDaughterPrm) {
 
 	var intermediateTrust eigentrust.IterationTrust
 
-	intermediateTrust.SetEpoch(p.ctx.Epoch())
+	intermediateTrust.SetEpoch(p.ei.Epoch())
 	intermediateTrust.SetPeer(p.id)
-	intermediateTrust.SetI(p.ctx.I())
+	intermediateTrust.SetI(p.ei.I())
 
 	if p.lastIter {
-		finalWriter, err := c.prm.FinalResultTarget.InitIntermediateWriter(p.ctx)
+		finalWriter, err := c.prm.FinalResultTarget.InitIntermediateWriter(p.ei)
 		if err != nil {
 			c.opts.log.Debug("init writer failure",
 				zap.String("error", err.Error()),
@@ -180,7 +177,7 @@ func (c *Calculator) iterateDaughter(p iterDaughterPrm) {
 			return
 		}
 	} else {
-		intermediateWriter, err := c.prm.IntermediateValueTarget.InitWriter(p.ctx)
+		intermediateWriter, err := c.prm.IntermediateValueTarget.InitWriter(p.ei)
 		if err != nil {
 			c.opts.log.Debug("init writer failure",
 				zap.String("error", err.Error()),
@@ -191,8 +188,8 @@ func (c *Calculator) iterateDaughter(p iterDaughterPrm) {
 
 		err = daughterIter.Iterate(func(trust reputation.Trust) error {
 			select {
-			case <-p.ctx.Done():
+			case <-ctx.Done():
-				return p.ctx.Err()
+				return ctx.Err()
 			default:
 			}
 
@@ -201,7 +198,7 @@ func (c *Calculator) iterateDaughter(p iterDaughterPrm) {
 
 			trust.SetValue(val)
 
-			err := intermediateWriter.Write(trust)
+			err := intermediateWriter.Write(ctx, trust)
 			if err != nil {
 				c.opts.log.Debug("write value failure",
 					zap.String("error", err.Error()),
@@ -216,7 +213,7 @@ func (c *Calculator) iterateDaughter(p iterDaughterPrm) {
 			)
 		}
 
-		err = intermediateWriter.Close()
+		err = intermediateWriter.Close(ctx)
 		if err != nil {
 			c.opts.log.Error(
 				"could not close writer",
@@ -226,8 +223,8 @@ func (c *Calculator) iterateDaughter(p iterDaughterPrm) {
 	}
 }
 
-func (c *Calculator) sendInitialValues(ctx Context) {
+func (c *Calculator) sendInitialValues(ctx context.Context, epochInfo EpochIterationInfo) {
-	daughterIter, err := c.prm.DaughterTrustSource.InitAllDaughtersIterator(ctx)
+	daughterIter, err := c.prm.DaughterTrustSource.InitAllDaughtersIterator(epochInfo)
 	if err != nil {
 		c.opts.log.Debug("all daughters trust iterator's init failure",
 			zap.String("error", err.Error()),
@@ -236,7 +233,7 @@ func (c *Calculator) sendInitialValues(ctx Context) {
 		return
 	}
 
-	intermediateWriter, err := c.prm.IntermediateValueTarget.InitWriter(ctx)
+	intermediateWriter, err := c.prm.IntermediateValueTarget.InitWriter(epochInfo)
 	if err != nil {
 		c.opts.log.Debug("init writer failure",
 			zap.String("error", err.Error()),
@@ -263,7 +260,7 @@ func (c *Calculator) sendInitialValues(ctx Context) {
 			initTrust.Mul(trust.Value())
 			trust.SetValue(initTrust)
 
-			err = intermediateWriter.Write(trust)
+			err = intermediateWriter.Write(ctx, trust)
 			if err != nil {
 				c.opts.log.Debug("write value failure",
 					zap.String("error", err.Error()),
@@ -281,7 +278,7 @@ func (c *Calculator) sendInitialValues(ctx Context) {
 		)
 	}
 
-	err = intermediateWriter.Close()
+	err = intermediateWriter.Close(ctx)
 	if err != nil {
 		c.opts.log.Debug("could not close writer",
 			zap.String("error", err.Error()),

pkg/services/reputation/eigentrust/calculator/deps.go

@@ -1,16 +1,12 @@
 package eigentrustcalc
 
 import (
-	"context"
-
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation/eigentrust"
 	apireputation "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/reputation"
 )
 
-type Context interface {
+type EpochIterationInfo interface {
-	context.Context
-
 	// Must return epoch number to select the values
 	// for global trust calculation.
 	Epoch() uint64
@@ -43,19 +39,19 @@ type PeerTrustsIterator interface {
 type DaughterTrustIteratorProvider interface {
 	// InitDaughterIterator must init TrustIterator
 	// that iterates over received local trusts from
-	// daughter p for ctx.Epoch() epoch.
+	// daughter p for epochInfo.Epoch() epoch.
-	InitDaughterIterator(ctx Context, p apireputation.PeerID) (TrustIterator, error)
+	InitDaughterIterator(epochInfo EpochIterationInfo, p apireputation.PeerID) (TrustIterator, error)
 	// InitAllDaughtersIterator must init PeerTrustsIterator
 	// that must iterate over all daughters of the current
 	// node(manager) and all trusts received from them for
-	// ctx.Epoch() epoch.
+	// epochInfo.Epoch() epoch.
-	InitAllDaughtersIterator(ctx Context) (PeerTrustsIterator, error)
+	InitAllDaughtersIterator(epochInfo EpochIterationInfo) (PeerTrustsIterator, error)
 	// InitConsumersIterator must init PeerTrustsIterator
 	// that must iterate over all daughters of the current
 	// node(manager) and their consumers' trusts received
-	// from other managers for ctx.Epoch() epoch and
+	// from other managers for epochInfo.Epoch() epoch and
-	// ctx.I() iteration.
+	// epochInfo.I() iteration.
-	InitConsumersIterator(Context) (PeerTrustsIterator, error)
+	InitConsumersIterator(EpochIterationInfo) (PeerTrustsIterator, error)
 }
 
 // IntermediateWriter must write intermediate result to contract.
@@ -68,7 +64,7 @@ type IntermediateWriter interface {
 // IntermediateWriterProvider must provide ready-to-work
 // IntermediateWriter.
 type IntermediateWriterProvider interface {
-	InitIntermediateWriter(Context) (IntermediateWriter, error)
+	InitIntermediateWriter(EpochIterationInfo) (IntermediateWriter, error)
 }
 
 // AlphaProvider must provide information about required

pkg/services/reputation/eigentrust/controller/calls.go

@@ -1,6 +1,8 @@
 package eigentrustctrl
 
 import (
+	"context"
+
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation/eigentrust"
 	"go.uber.org/zap"
 )
@@ -22,7 +24,7 @@ func (x iterContext) Last() bool {
 }
 
 // Continue moves the global reputation calculator to the next iteration.
-func (c *Controller) Continue(prm ContinuePrm) {
+func (c *Controller) Continue(ctx context.Context, prm ContinuePrm) {
 	c.mtx.Lock()
 
 	{
@@ -46,7 +48,7 @@ func (c *Controller) Continue(prm ContinuePrm) {
 		iterCtx.last = iterCtx.I() == iterCtx.iterationNumber-1
 
 		err := c.prm.WorkerPool.Submit(func() {
-			c.prm.DaughtersTrustCalculator.Calculate(iterCtx)
+			c.prm.DaughtersTrustCalculator.Calculate(ctx, iterCtx)
 
 			// iteration++
 			iterCtx.Increment()

pkg/services/reputation/eigentrust/controller/deps.go

@@ -1,5 +1,7 @@
 package eigentrustctrl
 
+import "context"
+
 // IterationContext is a context of the i-th
 // stage of iterative EigenTrust algorithm.
 type IterationContext interface {
@@ -25,7 +27,7 @@ type DaughtersTrustCalculator interface {
 	// http://ilpubs.stanford.edu:8090/562/1/2002-56.pdf Ch.5.1.
 	//
 	// Execution should be interrupted if ctx.Last().
-	Calculate(ctx IterationContext)
+	Calculate(ctx context.Context, iter IterationContext)
 }
 
 // IterationsProvider must provide information about numbers

pkg/services/reputation/eigentrust/iteration.go

@@ -1,8 +1,6 @@
 package eigentrust
 
 import (
-	"context"
-
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation"
 )
 
@@ -36,22 +34,11 @@ type IterationTrust struct {
 	reputation.Trust
 }
 
-// IterContext aggregates context and data required for
+func NewEpochIteration(epoch uint64, iter uint32) *EpochIteration {
-// iterations.
-// nolint: containedctx
-type IterContext struct {
-	context.Context
-	EpochIteration
-}
-
-func NewIterContext(ctx context.Context, epoch uint64, iter uint32) *IterContext {
 	ei := EpochIteration{}
 
 	ei.SetI(iter)
 	ei.SetEpoch(epoch)
 
-	return &IterContext{
+	return &ei
-		Context:        ctx,
-		EpochIteration: ei,
-	}
 }

pkg/services/reputation/local/controller/calls.go

@@ -27,80 +27,75 @@ func (p *ReportPrm) SetEpoch(e uint64) {
 //
 // Each call acquires a report context for an Epoch parameter.
 // At the very end of the operation, the context is released.
-func (c *Controller) Report(prm ReportPrm) {
+func (c *Controller) Report(ctx context.Context, prm ReportPrm) {
 	// acquire report
-	reportCtx := c.acquireReport(prm.epoch)
+	rCtx, reporter := c.acquireReporter(ctx, prm.epoch)
-	if reportCtx == nil {
+	if reporter == nil {
 		return
 	}
 
 	// report local trust values
-	reportCtx.report()
+	reporter.report(rCtx)
 
 	// finally stop and free the report
-	c.freeReport(prm.epoch, reportCtx.log)
+	c.freeReport(prm.epoch, reporter.log)
 }
 
-type reportContext struct {
+type reporter struct {
 	epoch uint64
 
 	ctrl *Controller
 
 	log *logger.Logger
 
-	ctx common.Context
+	ep common.EpochProvider
 }
 
-// nolint: containedctx
+type epochProvider struct {
-type iteratorContext struct {
-	context.Context
-
 	epoch uint64
 }
 
-func (c iteratorContext) Epoch() uint64 {
+func (c epochProvider) Epoch() uint64 {
 	return c.epoch
 }
 
-func (c *Controller) acquireReport(epoch uint64) *reportContext {
+func (c *Controller) acquireReporter(ctx context.Context, epoch uint64) (context.Context, *reporter) {
-	var ctx context.Context
+	started := true
 
 	c.mtx.Lock()
-
 	{
 		if cancel := c.mCtx[epoch]; cancel == nil {
-			ctx, cancel = context.WithCancel(context.Background())
+			ctx, cancel = context.WithCancel(ctx)
 			c.mCtx[epoch] = cancel
+			started = false
 		}
 	}
-
 	c.mtx.Unlock()
 
 	log := &logger.Logger{Logger: c.opts.log.With(
 		zap.Uint64("epoch", epoch),
 	)}
 
-	if ctx == nil {
+	if started {
 		log.Debug("report is already started")
-		return nil
+		return ctx, nil
 	}
 
-	return &reportContext{
+	return ctx, &reporter{
 		epoch: epoch,
 		ctrl:  c,
 		log:   log,
-		ctx: &iteratorContext{
+		ep: &epochProvider{
-			Context: ctx,
 			epoch: epoch,
 		},
 	}
 }
 
-func (c *reportContext) report() {
+func (c *reporter) report(ctx context.Context) {
 	c.log.Debug("starting to report local trust values")
 
 	// initialize iterator over locally collected values
-	iterator, err := c.ctrl.prm.LocalTrustSource.InitIterator(c.ctx)
+	iterator, err := c.ctrl.prm.LocalTrustSource.InitIterator(c.ep)
 	if err != nil {
 		c.log.Debug("could not initialize iterator over local trust values",
 			zap.String("error", err.Error()),
@@ -110,7 +105,7 @@ func (c *reportContext) report() {
 	}
 
 	// initialize target of local trust values
-	targetWriter, err := c.ctrl.prm.LocalTrustTarget.InitWriter(c.ctx)
+	targetWriter, err := c.ctrl.prm.LocalTrustTarget.InitWriter(c.ep)
 	if err != nil {
 		c.log.Debug("could not initialize local trust target",
 			zap.String("error", err.Error()),
@@ -123,11 +118,11 @@ func (c *reportContext) report() {
 	err = iterator.Iterate(
 		func(t reputation.Trust) error {
 			// check if context is done
-			if err := c.ctx.Err(); err != nil {
+			if err := ctx.Err(); err != nil {
 				return err
 			}
 
-			return targetWriter.Write(t)
+			return targetWriter.Write(ctx, t)
 		},
 	)
 	if err != nil && !errors.Is(err, context.Canceled) {
@@ -139,7 +134,7 @@ func (c *reportContext) report() {
 	}
 
 	// finish writing
-	err = targetWriter.Close()
+	err = targetWriter.Close(ctx)
 	if err != nil {
 		c.log.Debug("could not finish writing local trust values",
 			zap.String("error", err.Error()),

pkg/services/reputation/local/controller/controller.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"sync"
 
-	reputationcommon "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation/common"
+	reputationrouter "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/reputation/common/router"
 )
 
 // Prm groups the required parameters of the Controller's constructor.
@@ -24,7 +24,7 @@ type Prm struct {
 	// trust to other nodes.
 	//
 	// Must not be nil.
-	LocalTrustTarget reputationcommon.WriterProvider
+	LocalTrustTarget *reputationrouter.Router
 }
 
 // Controller represents main handler for starting

pkg/services/reputation/local/controller/deps.go

@@ -30,5 +30,5 @@ type IteratorProvider interface {
 	//
 	// Implementations can have different logic for different
 	// contexts, so specific ones may document their own behavior.
-	InitIterator(common.Context) (Iterator, error)
+	InitIterator(common.EpochProvider) (Iterator, error)
 }

pkg/services/reputation/local/controller/util.go

@@ -7,11 +7,11 @@ type storageWrapper struct {
 	i Iterator
 }
 
-func (s storageWrapper) InitIterator(common.Context) (Iterator, error) {
+func (s storageWrapper) InitIterator(common.EpochProvider) (Iterator, error) {
 	return s.i, nil
 }
 
-func (s storageWrapper) InitWriter(common.Context) (common.Writer, error) {
+func (s storageWrapper) InitWriter(common.EpochProvider) (common.Writer, error) {
 	return s.w, nil
 }