[#1556] Upgrade NeoFS SDK Go with changed container API

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

cmd/neofs-cli/internal/client/client.go

@@ -123,7 +123,7 @@ type GetContainerRes struct {
 }
 
 // Container returns structured of the requested container.
-func (x GetContainerRes) Container() *container.Container {
+func (x GetContainerRes) Container() container.Container {
 	return x.cliRes.Container()
 }
 

cmd/neofs-cli/modules/container/create.go

@@ -4,11 +4,9 @@ import (
 	"errors"
 	"fmt"
 	"os"
-	"strconv"
 	"strings"
 	"time"
 
-	"github.com/google/uuid"
 	internalclient "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/client"
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/common"
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
@@ -19,13 +17,11 @@ import (
 	"github.com/nspcc-dev/neofs-sdk-go/session"
 	subnetid "github.com/nspcc-dev/neofs-sdk-go/subnet/id"
 	"github.com/nspcc-dev/neofs-sdk-go/user"
-	versionSDK "github.com/nspcc-dev/neofs-sdk-go/version"
 	"github.com/spf13/cobra"
 )
 
 var (
 	containerACL         string
-	containerNonce       string
 	containerPolicy      string
 	containerAttributes  []string
 	containerAwait       bool
@@ -52,18 +48,17 @@ It will be stored in sidechain when inner ring will accepts it.`,
 			placementPolicy.RestrictSubnet(subnetID)
 		}
 
-		attributes, err := parseAttributes(containerAttributes)
+		var cnr container.Container
+		cnr.Init()
+
+		err = parseAttributes(&cnr, containerAttributes)
 		common.ExitOnErr(cmd, "", err)
 
 		var basicACL acl.Basic
 		common.ExitOnErr(cmd, "decode basic ACL string: %w", basicACL.DecodeString(containerACL))
 
-		nonce, err := parseNonce(containerNonce)
-		common.ExitOnErr(cmd, "", err)
-
 		key := key.GetOrGenerate(cmd)
 
-		cnr := container.New()
 		var tok *session.Container
 
 		sessionTokenPath, _ := cmd.Flags().GetString(commonflags.SessionToken)
@@ -72,27 +67,22 @@ It will be stored in sidechain when inner ring will accepts it.`,
 			common.ReadSessionToken(cmd, tok, sessionTokenPath)
 
 			issuer := tok.Issuer()
-			cnr.SetOwnerID(&issuer)
+			cnr.SetOwner(issuer)
 		} else {
 			var idOwner user.ID
 			user.IDFromKey(&idOwner, key.PublicKey)
 
-			cnr.SetOwnerID(&idOwner)
+			cnr.SetOwner(idOwner)
 		}
 
-		ver := versionSDK.Current()
+		cnr.SetPlacementPolicy(*placementPolicy)
-
-		cnr.SetVersion(&ver)
-		cnr.SetPlacementPolicy(placementPolicy)
 		cnr.SetBasicACL(basicACL)
-		cnr.SetAttributes(attributes)
-		cnr.SetNonceUUID(nonce)
 
 		cli := internalclient.GetSDKClientByFlag(cmd, key, commonflags.RPC)
 
 		var putPrm internalclient.PutContainerPrm
 		putPrm.SetClient(cli)
-		putPrm.SetContainer(*cnr)
+		putPrm.SetContainer(cnr)
 
 		if tok != nil {
 			putPrm.WithinSession(*tok)
@@ -137,7 +127,6 @@ func initContainerCreateCmd() {
 	))
 	flags.StringVarP(&containerPolicy, "policy", "p", "", "QL-encoded or JSON-encoded placement policy or path to file with it")
 	flags.StringSliceVarP(&containerAttributes, "attributes", "a", nil, "comma separated pairs of container attributes in form of Key1=Value1,Key2=Value2")
-	flags.StringVarP(&containerNonce, "nonce", "n", "", "UUIDv4 nonce value for container")
 	flags.BoolVar(&containerAwait, "await", false, "block execution until container is persisted")
 	flags.StringVar(&containerName, "name", "", "container name attribute")
 	flags.BoolVar(&containerNoTimestamp, "disable-timestamp", false, "disable timestamp container attribute")
@@ -173,48 +162,23 @@ func parseContainerPolicy(policyString string) (*netmap.PlacementPolicy, error)
 	return nil, errors.New("can't parse placement policy")
 }
 
-func parseAttributes(attributes []string) ([]container.Attribute, error) {
+func parseAttributes(dst *container.Container, attributes []string) error {
-	result := make([]container.Attribute, len(attributes), len(attributes)+2) // name + timestamp attributes
-
 	for i := range attributes {
 		kvPair := strings.Split(attributes[i], attributeDelimiter)
 		if len(kvPair) != 2 {
-			return nil, errors.New("invalid container attribute")
+			return errors.New("invalid container attribute")
 		}
 
-		result[i].SetKey(kvPair[0])
+		dst.SetAttribute(kvPair[0], kvPair[1])
-		result[i].SetValue(kvPair[1])
 	}
 
 	if !containerNoTimestamp {
-		index := len(result)
+		container.SetCreationTime(dst, time.Now())
-		result = append(result, container.Attribute{})
-		result[index].SetKey(container.AttributeTimestamp)
-		result[index].SetValue(strconv.FormatInt(time.Now().Unix(), 10))
 	}
 
 	if containerName != "" {
-		index := len(result)
+		container.SetName(dst, containerName)
-		result = append(result, container.Attribute{})
-		result[index].SetKey(container.AttributeName)
-		result[index].SetValue(containerName)
 	}
 
-	return result, nil
+	return nil
-}
-
-func parseNonce(nonce string) (uuid.UUID, error) {
-	if nonce == "" {
-		result := uuid.New()
-		common.PrintVerbose("Generating container nonce: %s", result)
-
-		return result, nil
-	}
-
-	uid, err := uuid.Parse(nonce)
-	if err != nil {
-		return uuid.UUID{}, fmt.Errorf("could not parse nonce: %w", err)
-	}
-
-	return uid, nil
 }

cmd/neofs-cli/modules/container/get.go

@@ -11,6 +11,7 @@ import (
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/key"
 	"github.com/nspcc-dev/neofs-sdk-go/container"
 	"github.com/nspcc-dev/neofs-sdk-go/container/acl"
+	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
 	"github.com/spf13/cobra"
 )
 
@@ -26,13 +27,12 @@ var getContainerInfoCmd = &cobra.Command{
 	Short: "Get container field info",
 	Long:  `Get container field info`,
 	Run: func(cmd *cobra.Command, args []string) {
-		var cnr *container.Container
+		var cnr container.Container
 
 		if containerPathFrom != "" {
 			data, err := os.ReadFile(containerPathFrom)
 			common.ExitOnErr(cmd, "can't read file: %w", err)
 
-			cnr = container.New()
 			err = cnr.Unmarshal(data)
 			common.ExitOnErr(cmd, "can't unmarshal container: %w", err)
 		} else {
@@ -62,8 +62,7 @@ var getContainerInfoCmd = &cobra.Command{
 				data, err = cnr.MarshalJSON()
 				common.ExitOnErr(cmd, "can't JSON encode container: %w", err)
 			} else {
-				data, err = cnr.Marshal()
+				data = cnr.Marshal()
-				common.ExitOnErr(cmd, "can't binary encode container: %w", err)
 			}
 
 			err = os.WriteFile(containerPathTo, data, 0644)
@@ -90,11 +89,7 @@ func (x *stringWriter) WriteString(s string) (n int, err error) {
 	return len(s), nil
 }
 
-func prettyPrintContainer(cmd *cobra.Command, cnr *container.Container, jsonEncoding bool) {
+func prettyPrintContainer(cmd *cobra.Command, cnr container.Container, jsonEncoding bool) {
-	if cnr == nil {
-		return
-	}
-
 	if jsonEncoding {
 		data, err := cnr.MarshalJSON()
 		if err != nil {
@@ -111,45 +106,25 @@ func prettyPrintContainer(cmd *cobra.Command, cnr *container.Container, jsonEnco
 		return
 	}
 
-	id := container.CalculateID(cnr)
+	var id cid.ID
+	container.CalculateID(&id, cnr)
 	cmd.Println("container ID:", id)
 
-	v := cnr.Version()
+	cmd.Println("owner ID:", cnr.Owner())
-	cmd.Printf("version: %d.%d\n", v.Major(), v.Minor())
-
-	cmd.Println("owner ID:", cnr.OwnerID())
 
 	basicACL := cnr.BasicACL()
 	prettyPrintBasicACL(cmd, basicACL)
 
-	for _, attribute := range cnr.Attributes() {
+	cmd.Println("created:", container.CreatedAt(cnr))
-		if attribute.Key() == container.AttributeTimestamp {
-			cmd.Printf("attribute: %s=%s (%s)\n",
-				attribute.Key(),
-				attribute.Value(),
-				common.PrettyPrintUnixTime(attribute.Value()))
 
-			continue
+	cmd.Println("attributes:")
-		}
+	cnr.IterateAttributes(func(key, val string) {
+		cmd.Printf("\t%s=%s\n", key, val)
+	})
 
-		cmd.Printf("attribute: %s=%s\n", attribute.Key(), attribute.Value())
-	}
-
-	nonce, err := cnr.NonceUUID()
-	if err == nil {
-		cmd.Println("nonce:", nonce)
-	} else {
-		cmd.Println("invalid nonce:", err)
-	}
-
-	pp := cnr.PlacementPolicy()
-	if pp == nil {
-		cmd.Println("missing placement policy")
-	} else {
 	cmd.Println("placement policy:")
-		common.ExitOnErr(cmd, "write policy: %w", pp.WriteStringTo((*stringWriter)(cmd)))
+	common.ExitOnErr(cmd, "write policy: %w", cnr.PlacementPolicy().WriteStringTo((*stringWriter)(cmd)))
 	cmd.Println()
-	}
 }
 
 func prettyPrintBasicACL(cmd *cobra.Command, basicACL acl.Basic) {

cmd/neofs-node/container.go

@@ -213,16 +213,11 @@ type morphLoadWriter struct {
 	key []byte
 }
 
-func (w *morphLoadWriter) Put(a containerSDK.UsedSpaceAnnouncement) error {
+func (w *morphLoadWriter) Put(a containerSDK.SizeEstimation) error {
-	cnr, ok := a.ContainerID()
-	if !ok {
-		return errors.New("missing container ID in load announcement")
-	}
-
 	w.log.Debug("save used space announcement in contract",
 		zap.Uint64("epoch", a.Epoch()),
-		zap.Stringer("cid", cnr),
+		zap.Stringer("cid", a.Container()),
-		zap.Uint64("size", a.UsedSpace()),
+		zap.Uint64("size", a.Value()),
 	)
 
 	prm := cntClient.AnnounceLoadPrm{}
@@ -239,7 +234,7 @@ func (*morphLoadWriter) Close() error {
 
 type nopLoadWriter struct{}
 
-func (nopLoadWriter) Put(containerSDK.UsedSpaceAnnouncement) error {
+func (nopLoadWriter) Put(containerSDK.SizeEstimation) error {
 	return nil
 }
 
@@ -302,10 +297,10 @@ type remoteLoadAnnounceWriter struct {
 
 	client client.Client
 
-	buf []containerSDK.UsedSpaceAnnouncement
+	buf []containerSDK.SizeEstimation
 }
 
-func (r *remoteLoadAnnounceWriter) Put(a containerSDK.UsedSpaceAnnouncement) error {
+func (r *remoteLoadAnnounceWriter) Put(a containerSDK.SizeEstimation) error {
 	r.buf = append(r.buf, a)
 
 	return nil
@@ -354,11 +349,6 @@ func (l *loadPlacementBuilder) buildPlacement(epoch uint64, idCnr cid.ID) ([][]n
 		return nil, nil, err
 	}
 
-	policy := cnr.Value.PlacementPolicy()
-	if policy == nil {
-		return nil, nil, errors.New("missing placement policy in container")
-	}
-
 	nm, err := l.nmSrc.GetNetMapByEpoch(epoch)
 	if err != nil {
 		return nil, nil, fmt.Errorf("could not get network map: %w", err)
@@ -367,7 +357,7 @@ func (l *loadPlacementBuilder) buildPlacement(epoch uint64, idCnr cid.ID) ([][]n
 	binCnr := make([]byte, sha256.Size)
 	idCnr.Encode(binCnr)
 
-	cnrNodes, err := nm.ContainerNodes(*policy, binCnr)
+	cnrNodes, err := nm.ContainerNodes(cnr.Value.PlacementPolicy(), binCnr)
 	if err != nil {
 		return nil, nil, fmt.Errorf("could not build container nodes: %w", err)
 	}
@@ -403,15 +393,15 @@ func (d *localStorageLoad) Iterate(f loadcontroller.UsedSpaceFilter, h loadcontr
 			zap.Stringer("cid", idList[i]),
 		)
 
-		a := containerSDK.NewAnnouncement()
+		var a containerSDK.SizeEstimation
-		a.SetContainerID(idList[i])
+		a.SetContainer(idList[i])
-		a.SetUsedSpace(sz)
+		a.SetValue(sz)
 
-		if f != nil && !f(*a) {
+		if f != nil && !f(a) {
 			continue
 		}
 
-		if err := h(*a); err != nil {
+		if err := h(a); err != nil {
 			return err
 		}
 	}
@@ -479,8 +469,15 @@ func (c *usedSpaceService) AnnounceUsedSpace(ctx context.Context, req *container
 		return nil, fmt.Errorf("could not initialize container's used space writer: %w", err)
 	}
 
+	var est containerSDK.SizeEstimation
+
 	for _, aV2 := range req.GetBody().GetAnnouncements() {
-		if err := c.processLoadValue(ctx, *containerSDK.NewAnnouncementFromV2(&aV2), passedRoute, w); err != nil {
+		err = est.ReadFromV2(aV2)
+		if err != nil {
+			return nil, fmt.Errorf("invalid size announcement: %w", err)
+		}
+
+		if err := c.processLoadValue(ctx, est, passedRoute, w); err != nil {
 			return nil, err
 		}
 	}
@@ -527,14 +524,9 @@ func (l *loadPlacementBuilder) isNodeFromContainerKey(epoch uint64, cnr cid.ID,
 	return false, nil
 }
 
-func (c *usedSpaceService) processLoadValue(_ context.Context, a containerSDK.UsedSpaceAnnouncement,
+func (c *usedSpaceService) processLoadValue(_ context.Context, a containerSDK.SizeEstimation,
 	route []loadroute.ServerInfo, w loadcontroller.Writer) error {
-	cnr, ok := a.ContainerID()
+	fromCnr, err := c.loadPlacementBuilder.isNodeFromContainerKey(a.Epoch(), a.Container(), route[0].PublicKey())
-	if !ok {
-		return errors.New("missing container ID in load announcement")
-	}
-
-	fromCnr, err := c.loadPlacementBuilder.isNodeFromContainerKey(a.Epoch(), cnr, route[0].PublicKey())
 	if err != nil {
 		return fmt.Errorf("could not verify that the sender belongs to the container: %w", err)
 	} else if !fromCnr {
@@ -591,13 +583,8 @@ func (m morphContainerWriter) Put(cnr containerCore.Container) (*cid.ID, error)
 		return nil, err
 	}
 
-	idOwner := cnr.Value.OwnerID()
-	if idOwner == nil {
-		return nil, errors.New("missing container owner")
-	}
-
 	if m.cacheEnabled {
-		m.lists.InvalidateContainerList(*idOwner)
+		m.lists.InvalidateContainerList(cnr.Value.Owner())
 	}
 
 	return containerID, nil

go.mod

@@ -17,9 +17,9 @@ require (
 	github.com/nspcc-dev/hrw v1.0.9
 	github.com/nspcc-dev/neo-go v0.99.1-pre.0.20220609082921-2c9fb2044242
 	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20220601120906-3bec6657f5c5 // indirect
-	github.com/nspcc-dev/neofs-api-go/v2 v2.12.3-0.20220621170933-dd233c3fbc84
+	github.com/nspcc-dev/neofs-api-go/v2 v2.12.3-0.20220630100506-c6f7ab3ef1bf
 	github.com/nspcc-dev/neofs-contract v0.15.1
-	github.com/nspcc-dev/neofs-sdk-go v1.0.0-rc.4.0.20220623080532-aa5ee1dcde1c
+	github.com/nspcc-dev/neofs-sdk-go v1.0.0-rc.4.0.20220704082116-2ad89085a341
 	github.com/nspcc-dev/tzhash v1.5.2
 	github.com/panjf2000/ants/v2 v2.4.0
 	github.com/paulmach/orb v0.2.2

pkg/core/container/fmt.go

@@ -1,54 +0,0 @@
-package container
-
-import (
-	"errors"
-	"fmt"
-
-	"github.com/nspcc-dev/neofs-node/pkg/core/version"
-	"github.com/nspcc-dev/neofs-sdk-go/container"
-)
-
-var (
-	errNilPolicy          = errors.New("placement policy is nil")
-	errRepeatedAttributes = errors.New("repeated attributes found")
-	errEmptyAttribute     = errors.New("empty attribute found")
-)
-
-// CheckFormat conducts an initial check of the v2 container data.
-//
-// It is expected that if a container fails this test,
-// it will not be approved by the inner ring.
-func CheckFormat(c *container.Container) error {
-	if c.PlacementPolicy() == nil {
-		return errNilPolicy
-	}
-
-	if v := c.Version(); v == nil || !version.IsValid(*v) {
-		return fmt.Errorf("incorrect version %s", v)
-	}
-
-	if c.OwnerID() == nil {
-		return errors.New("missing owner")
-	}
-
-	if _, err := c.NonceUUID(); err != nil {
-		return fmt.Errorf("incorrect nonce: %w", err)
-	}
-
-	// check if there are repeated attributes
-	attrs := c.Attributes()
-	uniqueAttr := make(map[string]struct{}, len(attrs))
-	for _, attr := range attrs {
-		if _, exists := uniqueAttr[attr.Key()]; exists {
-			return errRepeatedAttributes
-		}
-
-		if attr.Value() == "" {
-			return errEmptyAttribute
-		}
-
-		uniqueAttr[attr.Key()] = struct{}{}
-	}
-
-	return nil
-}

pkg/core/container/fmt_test.go

@@ -1,73 +0,0 @@
-package container
-
-import (
-	"testing"
-
-	"github.com/google/uuid"
-	"github.com/nspcc-dev/neofs-node/pkg/util/test"
-	"github.com/nspcc-dev/neofs-sdk-go/container"
-	netmaptest "github.com/nspcc-dev/neofs-sdk-go/netmap/test"
-	"github.com/nspcc-dev/neofs-sdk-go/user"
-	"github.com/nspcc-dev/neofs-sdk-go/version"
-	"github.com/stretchr/testify/require"
-)
-
-func TestCheckFormat(t *testing.T) {
-	c := container.New()
-
-	require.Error(t, CheckFormat(c))
-
-	policy := netmaptest.PlacementPolicy()
-	c.SetPlacementPolicy(&policy)
-
-	require.Error(t, CheckFormat(c))
-
-	ver := version.Current()
-	c.SetVersion(&ver)
-
-	require.Error(t, CheckFormat(c))
-
-	var idUser user.ID
-	user.IDFromKey(&idUser, test.DecodeKey(-1).PublicKey)
-
-	c.SetOwnerID(&idUser)
-
-	// set incorrect nonce
-	cV2 := c.ToV2()
-	cV2.SetNonce([]byte{1, 2, 3})
-	c = container.NewContainerFromV2(cV2)
-
-	require.Error(t, CheckFormat(c))
-
-	c.SetNonceUUID(uuid.New())
-
-	require.NoError(t, CheckFormat(c))
-
-	// set empty value attribute
-	var attr1 container.Attribute
-	attr1.SetKey("attr")
-	attrs := container.Attributes{attr1}
-
-	c.SetAttributes(attrs)
-
-	require.ErrorIs(t, CheckFormat(c), errEmptyAttribute)
-
-	// add same key attribute
-	var attr2 container.Attribute
-	attr2.SetKey(attr1.Key())
-	attr2.SetValue("val")
-
-	attrs[0].SetValue(attr2.Value())
-
-	attrs = append(attrs, attr2)
-
-	c.SetAttributes(attrs)
-
-	require.ErrorIs(t, CheckFormat(c), errRepeatedAttributes)
-
-	attrs[1].SetKey(attr1.Key() + "smth")
-
-	c.SetAttributes(attrs)
-
-	require.NoError(t, CheckFormat(c))
-}

pkg/core/container/storage.go

@@ -14,7 +14,7 @@ import (
 // Container groups information about the NeoFS container stored in the NeoFS network.
 type Container struct {
 	// Container structure.
-	Value *container.Container
+	Value container.Container
 
 	// Signature of the Value.
 	Signature neofscrypto.Signature

pkg/innerring/processors/audit/process.go

@@ -60,19 +60,10 @@ func (ap *Processor) processStartAudit(epoch uint64) {
 			continue
 		}
 
-		policy := cnr.Value.PlacementPolicy()
-		if policy == nil {
-			log.Error("missing placement policy in container, ignore",
-				zap.Stringer("cid", containers[i]),
-			)
-
-			continue
-		}
-
 		containers[i].Encode(pivot)
 
 		// find all container nodes for current epoch
-		nodes, err := nm.ContainerNodes(*policy, pivot)
+		nodes, err := nm.ContainerNodes(cnr.Value.PlacementPolicy(), pivot)
 		if err != nil {
 			log.Info("can't build placement for container, ignore",
 				zap.Stringer("cid", containers[i]),

pkg/innerring/processors/container/process_container.go

@@ -1,11 +1,9 @@
 package container
 
 import (
-	"errors"
 	"fmt"
 
 	"github.com/nspcc-dev/neo-go/pkg/network/payload"
-	"github.com/nspcc-dev/neofs-node/pkg/core/container"
 	cntClient "github.com/nspcc-dev/neofs-node/pkg/morph/client/container"
 	morphsubnet "github.com/nspcc-dev/neofs-node/pkg/morph/client/subnet"
 	"github.com/nspcc-dev/neofs-node/pkg/morph/event"
@@ -30,7 +28,7 @@ type putEvent interface {
 type putContainerContext struct {
 	e putEvent
 
-	name, zone string // from container structure
+	d containerSDK.Domain
 }
 
 // Process a new container from the user by checking the container sanity
@@ -59,21 +57,15 @@ func (cp *Processor) processContainerPut(put putEvent) {
 
 func (cp *Processor) checkPutContainer(ctx *putContainerContext) error {
 	binCnr := ctx.e.Container()
-
+	var cnr containerSDK.Container
-	cnr := containerSDK.New()
 
 	err := cnr.Unmarshal(binCnr)
 	if err != nil {
 		return fmt.Errorf("invalid binary container: %w", err)
 	}
 
-	ownerContainer := cnr.OwnerID()
-	if ownerContainer == nil {
-		return errors.New("missing container owner")
-	}
-
 	err = cp.verifySignature(signatureVerificationData{
-		ownerContainer:  *ownerContainer,
+		ownerContainer:  cnr.Owner(),
 		verb:            session.VerbContainerPut,
 		binTokenSession: ctx.e.SessionToken(),
 		binPublicKey:    ctx.e.PublicKey(),
@@ -96,12 +88,6 @@ func (cp *Processor) checkPutContainer(ctx *putContainerContext) error {
 		return fmt.Errorf("NNS: %w", err)
 	}
 
-	// perform format check
-	err = container.CheckFormat(cnr)
-	if err != nil {
-		return fmt.Errorf("incorrect container format: %w", err)
-	}
-
 	return nil
 }
 
@@ -116,8 +102,8 @@ func (cp *Processor) approvePutContainer(ctx *putContainerContext) {
 	prm.SetKey(e.PublicKey())
 	prm.SetSignature(e.Signature())
 	prm.SetToken(e.SessionToken())
-	prm.SetName(ctx.name)
+	prm.SetName(ctx.d.Name())
-	prm.SetZone(ctx.zone)
+	prm.SetZone(ctx.d.Zone())
 
 	if nr := e.NotaryRequest(); nr != nil {
 		// put event was received via Notary service
@@ -169,13 +155,8 @@ func (cp *Processor) checkDeleteContainer(e *containerEvent.Delete) error {
 		return fmt.Errorf("could not receive the container: %w", err)
 	}
 
-	ownerContainer := cnr.Value.OwnerID()
-	if ownerContainer == nil {
-		return errors.New("missing container owner")
-	}
-
 	err = cp.verifySignature(signatureVerificationData{
-		ownerContainer:  *ownerContainer,
+		ownerContainer:  cnr.Value.Owner(),
 		verb:            session.VerbContainerDelete,
 		idContainerSet:  true,
 		idContainer:     idCnr,
@@ -213,47 +194,37 @@ func (cp *Processor) approveDeleteContainer(e *containerEvent.Delete) {
 	}
 }
 
-func checkNNS(ctx *putContainerContext, cnr *containerSDK.Container) error {
+func checkNNS(ctx *putContainerContext, cnr containerSDK.Container) error {
-	// fetch native name and zone
+	// fetch domain info
-	ctx.name, ctx.zone = containerSDK.GetNativeNameWithZone(cnr)
+	ctx.d = containerSDK.ReadDomain(cnr)
 
 	// if PutNamed event => check if values in container correspond to args
 	if named, ok := ctx.e.(interface {
 		Name() string
 		Zone() string
 	}); ok {
-		if name := named.Name(); name != ctx.name {
+		if name := named.Name(); name != ctx.d.Name() {
-			return fmt.Errorf("names differ %s/%s", name, ctx.name)
+			return fmt.Errorf("names differ %s/%s", name, ctx.d.Name())
 		}
 
-		if zone := named.Zone(); zone != ctx.zone {
+		if zone := named.Zone(); zone != ctx.d.Zone() {
-			return fmt.Errorf("zones differ %s/%s", zone, ctx.zone)
+			return fmt.Errorf("zones differ %s/%s", zone, ctx.d.Zone())
 		}
 	}
 
 	return nil
 }
 
-func checkSubnet(subCli *morphsubnet.Client, cnr *containerSDK.Container) error {
+func checkSubnet(subCli *morphsubnet.Client, cnr containerSDK.Container) error {
-	owner := cnr.OwnerID()
-	if owner == nil {
-		return errors.New("missing owner")
-	}
-
-	policy := cnr.PlacementPolicy()
-	if policy == nil {
-		return errors.New("missing placement policy")
-	}
-
 	prm := morphsubnet.UserAllowedPrm{}
 
-	subID := policy.Subnet()
+	subID := cnr.PlacementPolicy().Subnet()
 	if subnetid.IsZero(subID) {
 		return nil
 	}
 
 	prm.SetID(subID.Marshal())
-	prm.SetClient(owner.WalletBytes())
+	prm.SetClient(cnr.Owner().WalletBytes())
 
 	res, err := subCli.UserAllowed(prm)
 	if err != nil {

pkg/innerring/processors/container/process_eacl.go

@@ -56,13 +56,8 @@ func (cp *Processor) checkSetEACL(e container.SetEACL) error {
 		return errors.New("ACL extension disabled by container basic ACL")
 	}
 
-	ownerContainer := cnr.Value.OwnerID()
-	if ownerContainer == nil {
-		return errors.New("missing container owner")
-	}
-
 	err = cp.verifySignature(signatureVerificationData{
-		ownerContainer:  *ownerContainer,
+		ownerContainer:  cnr.Value.Owner(),
 		verb:            session.VerbContainerSetEACL,
 		idContainerSet:  true,
 		idContainer:     idCnr,

pkg/innerring/settlement.go

@@ -6,7 +6,6 @@ import (
 	"crypto/elliptic"
 	"crypto/sha256"
 	"encoding/hex"
-	"errors"
 	"fmt"
 	"math/big"
 
@@ -93,8 +92,8 @@ func (n nodeInfoWrapper) Price() *big.Int {
 	return big.NewInt(int64(n.ni.Price()))
 }
 
-func (c *containerWrapper) Owner() user.ID {
+func (c containerWrapper) Owner() user.ID {
-	return *(*containerAPI.Container)(c).OwnerID()
+	return (containerAPI.Container)(c).Owner()
 }
 
 func (s settlementDeps) AuditResultsForEpoch(epoch uint64) ([]*auditAPI.Result, error) {
@@ -123,7 +122,7 @@ func (s settlementDeps) ContainerInfo(cid cid.ID) (common.ContainerInfo, error)
 		return nil, fmt.Errorf("could not get container from storage: %w", err)
 	}
 
-	return (*containerWrapper)(cnr.Value), nil
+	return (containerWrapper)(cnr.Value), nil
 }
 
 func (s settlementDeps) buildContainer(e uint64, cid cid.ID) ([][]netmapAPI.NodeInfo, *netmapAPI.NetMap, error) {
@@ -147,16 +146,11 @@ func (s settlementDeps) buildContainer(e uint64, cid cid.ID) ([][]netmapAPI.Node
 		return nil, nil, fmt.Errorf("could not get container from sidechain: %w", err)
 	}
 
-	policy := cnr.Value.PlacementPolicy()
-	if policy == nil {
-		return nil, nil, errors.New("missing placement policy in container")
-	}
-
 	binCnr := make([]byte, sha256.Size)
 	cid.Encode(binCnr)
 
 	cn, err := nm.ContainerNodes(
-		*policy,
+		cnr.Value.PlacementPolicy(),
 		binCnr, // may be replace pivot calculation to neofs-api-go
 	)
 	if err != nil {

pkg/morph/client/container/get.go

@@ -11,7 +11,6 @@ import (
 	core "github.com/nspcc-dev/neofs-node/pkg/core/container"
 	"github.com/nspcc-dev/neofs-node/pkg/morph/client"
 	apistatus "github.com/nspcc-dev/neofs-sdk-go/client/status"
-	"github.com/nspcc-dev/neofs-sdk-go/container"
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
 	neofscrypto "github.com/nspcc-dev/neofs-sdk-go/crypto"
 	"github.com/nspcc-dev/neofs-sdk-go/session"
@@ -90,7 +89,6 @@ func (c *Client) Get(cid []byte) (*containercore.Container, error) {
 
 	var cnr containercore.Container
 
-	cnr.Value = container.New()
 	if err := cnr.Value.Unmarshal(cnrBytes); err != nil {
 		// use other major version if there any
 		return nil, fmt.Errorf("can't unmarshal container: %w", err)

pkg/morph/client/container/load.go

@@ -2,7 +2,6 @@ package container
 
 import (
 	"crypto/sha256"
-	"errors"
 	"fmt"
 
 	v2refs "github.com/nspcc-dev/neofs-api-go/v2/refs"
@@ -13,14 +12,14 @@ import (
 
 // AnnounceLoadPrm groups parameters of AnnounceLoad operation.
 type AnnounceLoadPrm struct {
-	a   container.UsedSpaceAnnouncement
+	a   container.SizeEstimation
 	key []byte
 
 	client.InvokePrmOptional
 }
 
 // SetAnnouncement sets announcement.
-func (a2 *AnnounceLoadPrm) SetAnnouncement(a container.UsedSpaceAnnouncement) {
+func (a2 *AnnounceLoadPrm) SetAnnouncement(a container.SizeEstimation) {
 	a2.a = a
 }
 
@@ -34,17 +33,12 @@ func (a2 *AnnounceLoadPrm) SetReporter(key []byte) {
 //
 // Returns any error encountered that caused the saving to interrupt.
 func (c *Client) AnnounceLoad(p AnnounceLoadPrm) error {
-	cnr, ok := p.a.ContainerID()
-	if !ok {
-		return errors.New("missing container for load announcement")
-	}
-
 	binCnr := make([]byte, sha256.Size)
-	cnr.Encode(binCnr)
+	p.a.Container().Encode(binCnr)
 
 	prm := client.InvokePrm{}
 	prm.SetMethod(putSizeMethod)
-	prm.SetArgs(p.a.Epoch(), binCnr, p.a.UsedSpace(), p.key)
+	prm.SetArgs(p.a.Epoch(), binCnr, p.a.Value(), p.key)
 	prm.InvokePrmOptional = p.InvokePrmOptional
 
 	err := c.client.Invoke(prm)

pkg/morph/client/container/put.go

@@ -1,7 +1,6 @@
 package container
 
 import (
-	"crypto/sha256"
 	"fmt"
 
 	"github.com/nspcc-dev/neofs-api-go/v2/refs"
@@ -16,21 +15,14 @@ import (
 //
 // Returns error if container is nil.
 func Put(c *Client, cnr containercore.Container) (*cid.ID, error) {
-	if cnr.Value == nil {
+	data := cnr.Value.Marshal()
-		return nil, errNilArgument
-	}
 
-	data, err := cnr.Value.Marshal()
+	d := container.ReadDomain(cnr.Value)
-	if err != nil {
-		return nil, fmt.Errorf("can't marshal container: %w", err)
-	}
-
-	name, zone := container.GetNativeNameWithZone(cnr.Value)
 
 	var prm PutPrm
 	prm.SetContainer(data)
-	prm.SetName(name)
+	prm.SetName(d.Name())
-	prm.SetZone(zone)
+	prm.SetZone(d.Zone())
 
 	if cnr.Session != nil {
 		prm.SetToken(cnr.Session.Marshal())
@@ -43,13 +35,13 @@ func Put(c *Client, cnr containercore.Container) (*cid.ID, error) {
 	prm.SetKey(sigV2.GetKey())
 	prm.SetSignature(sigV2.GetSign())
 
-	err = c.Put(prm)
+	err := c.Put(prm)
 	if err != nil {
 		return nil, err
 	}
 
 	var id cid.ID
-	id.SetSHA256(sha256.Sum256(data))
+	container.CalculateIDFromBinary(&id, data)
 
 	return &id, nil
 }

pkg/services/audit/task.go

@@ -17,7 +17,7 @@ type Task struct {
 
 	idCnr cid.ID
 
-	cnr *container.Container
+	cnr container.Container
 
 	nm *netmap.NetMap
 
@@ -69,7 +69,7 @@ func (t *Task) ContainerID() cid.ID {
 }
 
 // WithContainerStructure sets structure of the container under audit.
-func (t *Task) WithContainerStructure(cnr *container.Container) *Task {
+func (t *Task) WithContainerStructure(cnr container.Container) *Task {
 	if t != nil {
 		t.cnr = cnr
 	}
@@ -78,7 +78,7 @@ func (t *Task) WithContainerStructure(cnr *container.Container) *Task {
 }
 
 // ContainerStructure returns structure of the container under audit.
-func (t *Task) ContainerStructure() *container.Container {
+func (t *Task) ContainerStructure() container.Container {
 	return t.cnr
 }
 

pkg/services/container/announcement/load/controller/calls.go

@@ -29,7 +29,7 @@ type announceContext struct {
 	commonContext
 }
 
-// Start starts the processing of UsedSpaceAnnouncement values.
+// Start starts the processing of container.SizeEstimation values.
 //
 // Single Start operation overtakes all data from LocalMetrics to
 // LocalAnnouncementTarget (Controller's parameters).
@@ -82,10 +82,10 @@ func (c *announceContext) announce() {
 
 	// iterate over all collected metrics and write them to the target
 	err = metricsIterator.Iterate(
-		func(container.UsedSpaceAnnouncement) bool {
+		func(container.SizeEstimation) bool {
 			return true // local metrics don't know about epochs
 		},
-		func(a container.UsedSpaceAnnouncement) error {
+		func(a container.SizeEstimation) error {
 			a.SetEpoch(c.epoch) // set epoch explicitly
 			return targetWriter.Put(a)
 		},
@@ -179,7 +179,7 @@ type stopContext struct {
 	commonContext
 }
 
-// Stop interrupts the processing of UsedSpaceAnnouncement values.
+// Stop interrupts the processing of container.SizeEstimation values.
 //
 // Single Stop operation releases an announcement context and overtakes
 // all data from AnnouncementAccumulator to ResultReceiver (Controller's

pkg/services/container/announcement/load/controller/calls_test.go

@@ -19,12 +19,12 @@ type testAnnouncementStorage struct {
 
 	mtx sync.RWMutex
 
-	m map[uint64][]container.UsedSpaceAnnouncement
+	m map[uint64][]container.SizeEstimation
 }
 
 func newTestStorage() *testAnnouncementStorage {
 	return &testAnnouncementStorage{
-		m: make(map[uint64][]container.UsedSpaceAnnouncement),
+		m: make(map[uint64][]container.SizeEstimation),
 	}
 }
 
@@ -61,7 +61,7 @@ func (s *testAnnouncementStorage) InitWriter(context.Context) (loadcontroller.Wr
 	return s, nil
 }
 
-func (s *testAnnouncementStorage) Put(v container.UsedSpaceAnnouncement) error {
+func (s *testAnnouncementStorage) Put(v container.SizeEstimation) error {
 	s.mtx.Lock()
 	s.m[v.Epoch()] = append(s.m[v.Epoch()], v)
 	s.mtx.Unlock()
@@ -73,12 +73,11 @@ func (s *testAnnouncementStorage) Close() error {
 	return nil
 }
 
-func randAnnouncement() container.UsedSpaceAnnouncement {
+func randAnnouncement() (a container.SizeEstimation) {
-	a := container.NewAnnouncement()
+	a.SetContainer(cidtest.ID())
-	a.SetContainerID(cidtest.ID())
+	a.SetValue(rand.Uint64())
-	a.SetUsedSpace(rand.Uint64())
 
-	return *a
+	return
 }
 
 func TestSimpleScenario(t *testing.T) {
@@ -116,7 +115,7 @@ func TestSimpleScenario(t *testing.T) {
 	const goodNum = 4
 
 	// create 2 random values for processing epoch and 1 for some different
-	announces := make([]container.UsedSpaceAnnouncement, 0, goodNum)
+	announces := make([]container.SizeEstimation, 0, goodNum)
 
 	for i := 0; i < goodNum; i++ {
 		a := randAnnouncement()
@@ -174,13 +173,13 @@ func TestSimpleScenario(t *testing.T) {
 	wg.Wait()
 
 	// result target should contain all "good" announcements and shoult not container the "bad" one
-	var res []container.UsedSpaceAnnouncement
+	var res []container.SizeEstimation
 
 	err := resultStorage.Iterate(
-		func(a container.UsedSpaceAnnouncement) bool {
+		func(a container.SizeEstimation) bool {
 			return true
 		},
-		func(a container.UsedSpaceAnnouncement) error {
+		func(a container.SizeEstimation) error {
 			res = append(res, a)
 			return nil
 		},

pkg/services/container/announcement/load/controller/deps.go

@@ -7,22 +7,22 @@ import (
 	"github.com/nspcc-dev/neofs-sdk-go/container"
 )
 
-// UsedSpaceHandler describes the signature of the UsedSpaceAnnouncement
+// UsedSpaceHandler describes the signature of the container.SizeEstimation
 // value handling function.
 //
 // Termination of processing without failures is usually signaled
 // with a zero error, while a specific value may describe the reason
 // for failure.
-type UsedSpaceHandler func(container.UsedSpaceAnnouncement) error
+type UsedSpaceHandler func(container.SizeEstimation) error
 
 // UsedSpaceFilter describes the signature of the function for
 // checking whether a value meets a certain criterion.
 //
 // Return of true means conformity, false - vice versa.
-type UsedSpaceFilter func(container.UsedSpaceAnnouncement) bool
+type UsedSpaceFilter func(container.SizeEstimation) bool
 
 // Iterator is a group of methods provided by entity
-// which can iterate over a group of UsedSpaceAnnouncement values.
+// which can iterate over a group of container.SizeEstimation values.
 type Iterator interface {
 	// Iterate must start an iterator over values that
 	// meet the filter criterion (returns true).
@@ -37,7 +37,7 @@ type Iterator interface {
 
 // IteratorProvider is a group of methods provided
 // by entity which generates iterators over
-// UsedSpaceAnnouncement values.
+// container.SizeEstimation values.
 type IteratorProvider interface {
 	// InitIterator should return an initialized Iterator.
 	//
@@ -49,12 +49,12 @@ type IteratorProvider interface {
 	InitIterator(context.Context) (Iterator, error)
 }
 
-// Writer describes the interface for storing UsedSpaceAnnouncement values.
+// Writer describes the interface for storing container.SizeEstimation values.
 //
 // This interface is provided by both local storage
 // of values and remote (wrappers over the RPC).
 type Writer interface {
-	// Put performs a write operation of UsedSpaceAnnouncement value
+	// Put performs a write operation of container.SizeEstimation value
 	// and returns any error encountered.
 	//
 	// All values after the Close call must be flushed to the
@@ -62,7 +62,7 @@ type Writer interface {
 	// Close operation.
 	//
 	// Put must not be called after Close.
-	Put(container.UsedSpaceAnnouncement) error
+	Put(container.SizeEstimation) error
 
 	// Close exits with method-providing Writer.
 	//
@@ -75,7 +75,7 @@ type Writer interface {
 
 // WriterProvider is a group of methods provided
 // by entity which generates keepers of
-// UsedSpaceAnnouncement values.
+// container.SizeEstimation values.
 type WriterProvider interface {
 	// InitWriter should return an initialized Writer.
 	//

pkg/services/container/announcement/load/controller/util.go

@@ -7,7 +7,7 @@ import (
 )
 
 func usedSpaceFilterEpochEQ(epoch uint64) UsedSpaceFilter {
-	return func(a container.UsedSpaceAnnouncement) bool {
+	return func(a container.SizeEstimation) bool {
 		return a.Epoch() == epoch
 	}
 }

pkg/services/container/announcement/load/route/calls.go

@@ -3,7 +3,6 @@ package loadroute
 import (
 	"context"
 	"encoding/hex"
-	"errors"
 	"sync"
 
 	loadcontroller "github.com/nspcc-dev/neofs-node/pkg/services/container/announcement/load/controller"
@@ -71,7 +70,7 @@ type routeKey struct {
 type valuesRoute struct {
 	route []ServerInfo
 
-	values []container.UsedSpaceAnnouncement
+	values []container.SizeEstimation
 }
 
 type loadWriter struct {
@@ -85,18 +84,13 @@ type loadWriter struct {
 	mServers map[string]loadcontroller.Writer
 }
 
-func (w *loadWriter) Put(a container.UsedSpaceAnnouncement) error {
+func (w *loadWriter) Put(a container.SizeEstimation) error {
-	cnr, ok := a.ContainerID()
-	if !ok {
-		return errors.New("missing container in load announcement")
-	}
-
 	w.routeMtx.Lock()
 	defer w.routeMtx.Unlock()
 
 	key := routeKey{
 		epoch: a.Epoch(),
-		cid:   cnr.EncodeToString(),
+		cid:   a.Container().EncodeToString(),
 	}
 
 	routeValues, ok := w.mRoute[key]
@@ -110,7 +104,7 @@ func (w *loadWriter) Put(a container.UsedSpaceAnnouncement) error {
 
 		routeValues = &valuesRoute{
 			route:  route,
-			values: []container.UsedSpaceAnnouncement{a},
+			values: []container.SizeEstimation{a},
 		}
 
 		w.mRoute[key] = routeValues

pkg/services/container/announcement/load/route/deps.go

@@ -33,7 +33,7 @@ type Builder interface {
 	// in that list (means that point is the last point in one of the route groups),
 	// returned route must contain nil point that should be interpreted as signal to,
 	// among sending to other route points, save the announcement in that point.
-	NextStage(a container.UsedSpaceAnnouncement, passed []ServerInfo) ([]ServerInfo, error)
+	NextStage(a container.SizeEstimation, passed []ServerInfo) ([]ServerInfo, error)
 }
 
 // RemoteWriterProvider describes the component

pkg/services/container/announcement/load/route/placement/calls.go

@@ -2,7 +2,6 @@ package placementrouter
 
 import (
 	"bytes"
-	"errors"
 	"fmt"
 
 	netmapcore "github.com/nspcc-dev/neofs-node/pkg/core/netmap"
@@ -16,15 +15,12 @@ import (
 // If passed route has more than one point, then endpoint of the route is reached.
 //
 // The traversed route is not checked, it is assumed to be correct.
-func (b *Builder) NextStage(a container.UsedSpaceAnnouncement, passed []loadroute.ServerInfo) ([]loadroute.ServerInfo, error) {
+func (b *Builder) NextStage(a container.SizeEstimation, passed []loadroute.ServerInfo) ([]loadroute.ServerInfo, error) {
 	if len(passed) > 1 {
 		return nil, nil
 	}
 
-	cnr, ok := a.ContainerID()
+	cnr := a.Container()
-	if !ok {
-		return nil, errors.New("missing container in load announcement")
-	}
 
 	placement, err := b.placementBuilder.BuildPlacement(a.Epoch(), cnr)
 	if err != nil {

pkg/services/container/announcement/load/route/util.go

@@ -12,7 +12,7 @@ var errWrongRoute = errors.New("wrong route")
 // CheckRoute checks if the route is a route correctly constructed by the builder for value a.
 //
 // Returns nil if route is correct, otherwise an error clarifying the inconsistency.
-func CheckRoute(builder Builder, a container.UsedSpaceAnnouncement, route []ServerInfo) error {
+func CheckRoute(builder Builder, a container.SizeEstimation, route []ServerInfo) error {
 	for i := 1; i < len(route); i++ {
 		servers, err := builder.NextStage(a, route[:i])
 		if err != nil {

pkg/services/container/announcement/load/storage/storage.go

@@ -1,7 +1,6 @@
 package loadstorage
 
 import (
-	"errors"
 	"sort"
 	"sync"
 
@@ -10,7 +9,7 @@ import (
 )
 
 type usedSpaceEstimations struct {
-	announcement container.UsedSpaceAnnouncement
+	announcement container.SizeEstimation
 
 	sizes []uint64
 }
@@ -22,7 +21,7 @@ type storageKey struct {
 }
 
 // Storage represents in-memory storage of
-// UsedSpaceAnnouncement values.
+// container.SizeEstimation values.
 //
 // The write operation has the usual behavior - to save
 // the next number of used container space for a specific epoch.
@@ -63,18 +62,13 @@ func New(_ Prm) *Storage {
 // to the list of already saved values.
 //
 // Always returns nil error.
-func (s *Storage) Put(a container.UsedSpaceAnnouncement) error {
+func (s *Storage) Put(a container.SizeEstimation) error {
-	cnr, ok := a.ContainerID()
-	if !ok {
-		return errors.New("missing container in load announcement")
-	}
-
 	s.mtx.Lock()
 
 	{
 		key := storageKey{
 			epoch: a.Epoch(),
-			cid:   cnr.EncodeToString(),
+			cid:   a.Container().EncodeToString(),
 		}
 
 		estimations, ok := s.mItems[key]
@@ -87,7 +81,7 @@ func (s *Storage) Put(a container.UsedSpaceAnnouncement) error {
 			s.mItems[key] = estimations
 		}
 
-		estimations.sizes = append(estimations.sizes, a.UsedSpace())
+		estimations.sizes = append(estimations.sizes, a.Value())
 	}
 
 	s.mtx.Unlock()
@@ -110,7 +104,7 @@ func (s *Storage) Iterate(f loadcontroller.UsedSpaceFilter, h loadcontroller.Use
 		for _, v := range s.mItems {
 			if f(v.announcement) {
 				// calculate estimation based on 90th percentile
-				v.announcement.SetUsedSpace(finalEstimation(v.sizes))
+				v.announcement.SetValue(finalEstimation(v.sizes))
 
 				if err = h(v.announcement); err != nil {
 					break

pkg/services/container/announcement/load/storage/storage_test.go

@@ -12,8 +12,8 @@ import (
 func TestStorage(t *testing.T) {
 	const epoch uint64 = 13
 
-	a := container.NewAnnouncement()
+	var a container.SizeEstimation
-	a.SetContainerID(cidtest.ID())
+	a.SetContainer(cidtest.ID())
 	a.SetEpoch(epoch)
 
 	const opinionsNum = 100
@@ -24,25 +24,23 @@ func TestStorage(t *testing.T) {
 	for i := range opinions {
 		opinions[i] = rand.Uint64()
 
-		a.SetUsedSpace(opinions[i])
+		a.SetValue(opinions[i])
 
-		require.NoError(t, s.Put(*a))
+		require.NoError(t, s.Put(a))
 	}
 
 	iterCounter := 0
 
 	err := s.Iterate(
-		func(ai container.UsedSpaceAnnouncement) bool {
+		func(ai container.SizeEstimation) bool {
 			return ai.Epoch() == epoch
 		},
-		func(ai container.UsedSpaceAnnouncement) error {
+		func(ai container.SizeEstimation) error {
 			iterCounter++
 
 			require.Equal(t, epoch, ai.Epoch())
-			cnr1, _ := a.ContainerID()
+			require.Equal(t, a.Container(), ai.Container())
-			cnr2, _ := ai.ContainerID()
+			require.Equal(t, finalEstimation(opinions), ai.Value())
-			require.Equal(t, cnr1, cnr2)
-			require.Equal(t, finalEstimation(opinions), ai.UsedSpace())
 
 			return nil
 		},

pkg/services/container/morph/executor.go

@@ -11,7 +11,6 @@ import (
 	containercore "github.com/nspcc-dev/neofs-node/pkg/core/container"
 	containerSvc "github.com/nspcc-dev/neofs-node/pkg/services/container"
 	"github.com/nspcc-dev/neofs-node/pkg/services/object/acl/eacl"
-	containerSDK "github.com/nspcc-dev/neofs-sdk-go/container"
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
 	eaclSDK "github.com/nspcc-dev/neofs-sdk-go/eacl"
 	"github.com/nspcc-dev/neofs-sdk-go/session"
@@ -58,8 +57,16 @@ func (s *morphExecutor) Put(_ context.Context, tokV2 *sessionV2.Token, body *con
 		return nil, errors.New("missing signature")
 	}
 
-	cnr := containercore.Container{
+	cnrV2 := body.GetContainer()
-		Value: containerSDK.NewContainerFromV2(body.GetContainer()),
+	if cnrV2 == nil {
+		return nil, errors.New("missing container field")
+	}
+
+	var cnr containercore.Container
+
+	err := cnr.Value.ReadFromV2(*cnrV2)
+	if err != nil {
+		return nil, fmt.Errorf("invalid container: %w", err)
 	}
 
 	cnr.Signature.ReadFromV2(*sigV2)
@@ -158,8 +165,11 @@ func (s *morphExecutor) Get(ctx context.Context, body *container.GetRequestBody)
 		cnr.Session.WriteToV2(tokV2)
 	}
 
+	var cnrV2 container.Container
+	cnr.Value.WriteToV2(&cnrV2)
+
 	res := new(container.GetResponseBody)
-	res.SetContainer(cnr.Value.ToV2())
+	res.SetContainer(&cnrV2)
 	res.SetSignature(sigV2)
 	res.SetSessionToken(tokV2)
 

pkg/services/container/morph/executor_test.go

@@ -12,6 +12,7 @@ import (
 	containerSvcMorph "github.com/nspcc-dev/neofs-node/pkg/services/container/morph"
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
 	cidtest "github.com/nspcc-dev/neofs-sdk-go/container/id/test"
+	containertest "github.com/nspcc-dev/neofs-sdk-go/container/test"
 	sessiontest "github.com/nspcc-dev/neofs-sdk-go/session/test"
 	"github.com/stretchr/testify/require"
 )
@@ -54,6 +55,13 @@ func TestInvalidToken(t *testing.T) {
 				var reqBody container.PutRequestBody
 				reqBody.SetSignature(new(refs.Signature))
 
+				cnr := containertest.Container()
+
+				var cnrV2 container.Container
+				cnr.WriteToV2(&cnrV2)
+
+				reqBody.SetContainer(&cnrV2)
+
 				_, err = e.Put(context.TODO(), tokV2, &reqBody)
 				return
 			},

pkg/services/object/acl/v2/classifier.go

@@ -3,7 +3,6 @@ package v2
 import (
 	"bytes"
 	"crypto/sha256"
-	"errors"
 
 	core "github.com/nspcc-dev/neofs-node/pkg/core/netmap"
 	"github.com/nspcc-dev/neofs-sdk-go/container"
@@ -27,12 +26,7 @@ type classifyResult struct {
 func (c senderClassifier) classify(
 	req MetaWithToken,
 	idCnr cid.ID,
-	cnr *container.Container) (res *classifyResult, err error) {
+	cnr container.Container) (res *classifyResult, err error) {
-	ownerCnr := cnr.OwnerID()
-	if ownerCnr == nil {
-		return nil, errors.New("missing container owner")
-	}
-
 	ownerID, ownerKey, err := req.RequestOwner()
 	if err != nil {
 		return nil, err
@@ -43,7 +37,7 @@ func (c senderClassifier) classify(
 	// TODO: #767 get owner from neofs.id if present
 
 	// if request owner is the same as container owner, return RoleUser
-	if ownerID.Equals(*ownerCnr) {
+	if ownerID.Equals(cnr.Owner()) {
 		return &classifyResult{
 			role: acl.RoleOwner,
 			key:  ownerKeyInBytes,
@@ -104,7 +98,7 @@ func (c senderClassifier) isInnerRingKey(owner []byte) (bool, error) {
 
 func (c senderClassifier) isContainerKey(
 	owner, idCnr []byte,
-	cnr *container.Container) (bool, error) {
+	cnr container.Container) (bool, error) {
 	nm, err := core.GetLatestNetworkMap(c.netmap) // first check current netmap
 	if err != nil {
 		return false, err
@@ -130,13 +124,8 @@ func (c senderClassifier) isContainerKey(
 func lookupKeyInContainer(
 	nm *netmap.NetMap,
 	owner, idCnr []byte,
-	cnr *container.Container) (bool, error) {
+	cnr container.Container) (bool, error) {
-	policy := cnr.PlacementPolicy()
+	cnrVectors, err := nm.ContainerNodes(cnr.PlacementPolicy(), idCnr)
-	if policy == nil {
-		return false, errors.New("missing placement policy in container")
-	}
-
-	cnrVectors, err := nm.ContainerNodes(*policy, idCnr)
 	if err != nil {
 		return false, err
 	}

pkg/services/object/acl/v2/service.go

@@ -506,8 +506,6 @@ func (b Service) findRequestInfo(req MetaWithToken, idCnr cid.ID, op acl.Op) (in
 	cnr, err := b.containers.Get(idCnr) // fetch actual container
 	if err != nil {
 		return info, err
-	} else if cnr.Value.OwnerID() == nil {
-		return info, errors.New("missing owner in container descriptor")
 	}
 
 	if req.token != nil {
@@ -534,7 +532,7 @@ func (b Service) findRequestInfo(req MetaWithToken, idCnr cid.ID, op acl.Op) (in
 	info.basicACL = cnr.Value.BasicACL()
 	info.requestRole = res.role
 	info.operation = op
-	info.cnrOwner = *cnr.Value.OwnerID()
+	info.cnrOwner = cnr.Value.Owner()
 	info.idCnr = idCnr
 
 	// it is assumed that at the moment the key will be valid,

pkg/services/object/get/get_test.go

@@ -35,7 +35,7 @@ type testStorage struct {
 }
 
 type testTraverserGenerator struct {
-	c *container.Container
+	c container.Container
 	b map[uint64]placement.Builder
 }
 
@@ -69,7 +69,7 @@ func newTestStorage() *testStorage {
 }
 
 func (g *testTraverserGenerator) GenerateTraverser(cnr cid.ID, obj *oid.ID, e uint64) (*placement.Traverser, error) {
-	opts := make([]placement.Option, 3, 4)
+	opts := make([]placement.Option, 0, 4)
 	opts = append(opts,
 		placement.ForContainer(g.c),
 		placement.UseBuilder(g.b[e]),
@@ -466,9 +466,11 @@ func generateChain(ln int, cnr cid.ID) ([]*objectSDK.Object, []oid.ID, []byte) {
 func TestGetRemoteSmall(t *testing.T) {
 	ctx := context.Background()
 
-	pp := netmaptest.PlacementPolicy()
+	var cnr container.Container
-	cnr := container.New(container.WithPolicy(&pp))
+	cnr.SetPlacementPolicy(netmaptest.PlacementPolicy())
-	idCnr := container.CalculateID(cnr)
+
+	var idCnr cid.ID
+	container.CalculateID(&idCnr, cnr)
 
 	newSvc := func(b *testPlacementBuilder, c *testClientCache) *Service {
 		svc := &Service{cfg: new(cfg)}
@@ -1119,9 +1121,11 @@ func TestGetRemoteSmall(t *testing.T) {
 func TestGetFromPastEpoch(t *testing.T) {
 	ctx := context.Background()
 
-	pp := netmaptest.PlacementPolicy()
+	var cnr container.Container
-	cnr := container.New(container.WithPolicy(&pp))
+	cnr.SetPlacementPolicy(netmaptest.PlacementPolicy())
-	idCnr := container.CalculateID(cnr)
+
+	var idCnr cid.ID
+	container.CalculateID(&idCnr, cnr)
 
 	addr := oidtest.Address()
 	addr.SetContainer(idCnr)

pkg/services/object/search/search_test.go

@@ -33,7 +33,7 @@ type testStorage struct {
 }
 
 type testTraverserGenerator struct {
-	c *container.Container
+	c container.Container
 	b map[uint64]placement.Builder
 }
 
@@ -241,8 +241,11 @@ func TestGetRemoteSmall(t *testing.T) {
 	var pp netmap.PlacementPolicy
 	pp.AddReplicas(rs...)
 
-	cnr := container.New(container.WithPolicy(&pp))
+	var cnr container.Container
-	id := container.CalculateID(cnr)
+	cnr.SetPlacementPolicy(pp)
+
+	var id cid.ID
+	container.CalculateID(&id, cnr)
 
 	newSvc := func(b *testPlacementBuilder, c *testClientCache) *Service {
 		svc := &Service{cfg: new(cfg)}
@@ -327,8 +330,11 @@ func TestGetFromPastEpoch(t *testing.T) {
 	var pp netmap.PlacementPolicy
 	pp.AddReplicas(rs...)
 
-	cnr := container.New(container.WithPolicy(&pp))
+	var cnr container.Container
-	idCnr := container.CalculateID(cnr)
+	cnr.SetPlacementPolicy(pp)
+
+	var idCnr cid.ID
+	container.CalculateID(&idCnr, cnr)
 
 	var addr oid.Address
 	addr.SetContainer(idCnr)

pkg/services/object_manager/placement/traverser.go

@@ -45,7 +45,8 @@ type cfg struct {
 
 	obj *oid.ID
 
-	policy *netmap.PlacementPolicy
+	policySet bool
+	policy    netmap.PlacementPolicy
 
 	builder Builder
 }
@@ -74,11 +75,11 @@ func NewTraverser(opts ...Option) (*Traverser, error) {
 
 	if cfg.builder == nil {
 		return nil, fmt.Errorf("%s: %w", invalidOptsMsg, errNilBuilder)
-	} else if cfg.policy == nil {
+	} else if !cfg.policySet {
 		return nil, fmt.Errorf("%s: %w", invalidOptsMsg, errNilPolicy)
 	}
 
-	ns, err := cfg.builder.BuildPlacement(cfg.cnr, cfg.obj, *cfg.policy)
+	ns, err := cfg.builder.BuildPlacement(cfg.cnr, cfg.obj, cfg.policy)
 	if err != nil {
 		return nil, fmt.Errorf("could not build placement: %w", err)
 	}
@@ -219,10 +220,11 @@ func UseBuilder(b Builder) Option {
 }
 
 // ForContainer is a traversal container setting option.
-func ForContainer(cnr *container.Container) Option {
+func ForContainer(cnr container.Container) Option {
 	return func(c *cfg) {
 		c.policy = cnr.PlacementPolicy()
-		c.cnr = container.CalculateID(cnr)
+		c.policySet = true
+		container.CalculateID(&c.cnr, cnr)
 	}
 }
 

pkg/services/object_manager/placement/traverser_test.go

@@ -40,7 +40,7 @@ func copyVectors(v [][]netmap.NodeInfo) [][]netmap.NodeInfo {
 	return vc
 }
 
-func testPlacement(t *testing.T, ss, rs []int) ([][]netmap.NodeInfo, *container.Container) {
+func testPlacement(t *testing.T, ss, rs []int) ([][]netmap.NodeInfo, container.Container) {
 	nodes := make([][]netmap.NodeInfo, 0, len(rs))
 	replicas := make([]netmap.ReplicaDescriptor, 0, len(rs))
 	num := uint32(0)
@@ -61,10 +61,13 @@ func testPlacement(t *testing.T, ss, rs []int) ([][]netmap.NodeInfo, *container.
 		replicas = append(replicas, rd)
 	}
 
-	policy := new(netmap.PlacementPolicy)
+	var policy netmap.PlacementPolicy
 	policy.AddReplicas(replicas...)
 
-	return nodes, container.New(container.WithPolicy(policy))
+	var cnr container.Container
+	cnr.SetPlacementPolicy(policy)
+
+	return nodes, cnr
 }
 
 func assertSameAddress(t *testing.T, ni netmap.NodeInfo, addr network.AddressGroup) {

pkg/services/policer/check.go

@@ -45,17 +45,9 @@ func (p *Policer) processObject(ctx context.Context, addr oid.Address) {
 	}
 
 	policy := cnr.Value.PlacementPolicy()
-	if policy == nil {
-		p.log.Error("missing placement policy in container",
-			zap.Stringer("cid", idCnr),
-		)
-
-		return
-	}
-
 	obj := addr.Object()
 
-	nn, err := p.placementBuilder.BuildPlacement(idCnr, &obj, *policy)
+	nn, err := p.placementBuilder.BuildPlacement(idCnr, &obj, policy)
 	if err != nil {
 		p.log.Error("could not build placement vector for object",
 			zap.String("error", err.Error()),