object: Stop supporting object-level notifications

They were marked as deprecated in the protocol in
nspcc-dev/neofs-api#279. NATS is no longer
needed.

Signed-off-by: Leonard Lyubich <[email protected]>

.github/testcases-env

@@ -25,10 +25,6 @@ IR_IMAGE=nspccdev/neofs-ir
 NODE_VERSION=_TAG_
 NODE_IMAGE=nspccdev/neofs-storage
 
-# NATS Server
-NATS_VERSION=2.7.2
-NATS_IMAGE=nats
-
 # HTTP Gate
 HTTP_GW_VERSION=0.28.0
 HTTP_GW_IMAGE=nspccdev/neofs-http-gw

CHANGELOG.md

@@ -12,10 +12,15 @@ Changelog for NeoFS Node
 ### Changed
 
 ### Removed
+- Object notifications incl. NATS (#2750))
 
 ### Updated
 
 ### Updating from v0.40.1
+Remove `notification` section from all SN configuration files: it is no longer
+supported. All NATS servers running for this purpose only are no longer needed.
+If your app depends on notifications transmitted to NATS, do not update and
+create an issue please.
 
 ## [0.40.1] - 2024-02-22
 

cmd/neofs-cli/modules/object/put.go

@@ -22,8 +22,7 @@ import (
 )
 
 const (
-	noProgressFlag   = "no-progress"
-	notificationFlag = "notify"
+	noProgressFlag = "no-progress"
 )
 
 var putExpiredOn uint64
@@ -55,7 +54,6 @@ func initObjectPutCmd() {
 	flags.Uint64P(commonflags.Lifetime, "l", 0, "Number of epochs for object to stay valid")
 	flags.Bool(noProgressFlag, false, "Do not show progress bar")
 
-	flags.String(notificationFlag, "", "Object notification in the form of *epoch*:*topic*; '-' topic means using default")
 	flags.Bool(binaryFlag, false, "Deserialize object structure from given file.")
 	objectPutCmd.MarkFlagsMutuallyExclusive(commonflags.ExpireAt, commonflags.Lifetime)
 }
@@ -139,13 +137,6 @@ func putObject(cmd *cobra.Command, _ []string) {
 	obj.SetOwnerID(&ownerID)
 	obj.SetAttributes(attrs...)
 
-	notificationInfo, err := parseObjectNotifications(cmd)
-	common.ExitOnErr(cmd, "can't parse object notification information: %w", err)
-
-	if notificationInfo != nil {
-		obj.SetNotification(*notificationInfo)
-	}
-
 	var prm internalclient.PutObjectPrm
 	prm.SetPrivateKey(*pk)
 	ReadOrOpenSession(ctx, cmd, &prm, pk, cnr, nil)
@@ -224,39 +215,3 @@ func parseObjectAttrs(cmd *cobra.Command) ([]object.Attribute, error) {
 
 	return attrs, nil
 }
-
-func parseObjectNotifications(cmd *cobra.Command) (*object.NotificationInfo, error) {
-	const (
-		separator       = ":"
-		useDefaultTopic = "-"
-	)
-
-	raw := cmd.Flag(notificationFlag).Value.String()
-	if raw == "" {
-		return nil, nil
-	}
-
-	rawSlice := strings.SplitN(raw, separator, 2)
-	if len(rawSlice) != 2 {
-		return nil, fmt.Errorf("notification must be in the form of: *epoch*%s*topic*, got %s", separator, raw)
-	}
-
-	ni := new(object.NotificationInfo)
-
-	epoch, err := strconv.ParseUint(rawSlice[0], 10, 64)
-	if err != nil {
-		return nil, fmt.Errorf("could not parse notification epoch %s: %w", rawSlice[0], err)
-	}
-
-	ni.SetEpoch(epoch)
-
-	if rawSlice[1] == "" {
-		return nil, fmt.Errorf("incorrect empty topic: use %s to force using default topic", useDefaultTopic)
-	}
-
-	if rawSlice[1] != useDefaultTopic {
-		ni.SetTopic(rawSlice[1])
-	}
-
-	return ni, nil
-}

cmd/neofs-node/config.go

@@ -399,7 +399,6 @@ type cfg struct {
 	cfgControlService cfgControlService
 	cfgReputation     cfgReputation
 	cfgObject         cfgObject
-	cfgNotifications  cfgNotifications
 }
 
 // ReadCurrentNetMap reads network map which has been cached at the
@@ -475,12 +474,6 @@ type cfgObject struct {
 	tombstoneLifetime uint64
 }
 
-type cfgNotifications struct {
-	enabled      bool
-	nw           notificationWriter
-	defaultTopic string
-}
-
 type cfgLocalStorage struct {
 	localStorage *engine.StorageEngine
 }

cmd/neofs-node/config/node/config.go

@@ -24,17 +24,10 @@ type PersistentStateConfig struct {
 	cfg *config.Config
 }
 
-// NotificationConfig is a wrapper over "notification" config section
-// which provides access to object notification configuration of node.
-type NotificationConfig struct {
-	cfg *config.Config
-}
-
 const (
 	subsection                   = "node"
 	persistentSessionsSubsection = "persistent_sessions"
 	persistentStateSubsection    = "persistent_state"
-	notificationSubsection       = "notification"
 
 	attributePrefix = "attribute"
 
@@ -176,72 +169,3 @@ func (p PersistentStateConfig) Path() string {
 
 	return PersistentStatePathDefault
 }
-
-// Notification returns structure that provides access to "notification"
-// subsection of "node" section.
-func Notification(c *config.Config) NotificationConfig {
-	return NotificationConfig{
-		c.Sub(subsection).Sub(notificationSubsection),
-	}
-}
-
-// Enabled returns the value of "enabled" config parameter from "notification"
-// subsection of "node" section.
-//
-// Returns false if the value is not presented.
-func (n NotificationConfig) Enabled() bool {
-	return config.BoolSafe(n.cfg, "enabled")
-}
-
-// DefaultTopic returns the value of "default_topic" config parameter from
-// "notification" subsection of "node" section.
-//
-// Returns empty string if the value is not presented.
-func (n NotificationConfig) DefaultTopic() string {
-	return config.StringSafe(n.cfg, "default_topic")
-}
-
-// Endpoint returns the value of "endpoint" config parameter from "notification"
-// subsection of "node" section.
-//
-// Returns empty string if the value is not presented.
-func (n NotificationConfig) Endpoint() string {
-	return config.StringSafe(n.cfg, "endpoint")
-}
-
-// Timeout returns the value of "timeout" config parameter from "notification"
-// subsection of "node" section.
-//
-// Returns NotificationTimeoutDefault if the value is not positive.
-func (n NotificationConfig) Timeout() time.Duration {
-	v := config.DurationSafe(n.cfg, "timeout")
-	if v > 0 {
-		return v
-	}
-
-	return NotificationTimeoutDefault
-}
-
-// CertPath returns the value of "certificate_path" config parameter from "notification"
-// subsection of "node" section.
-//
-// Returns empty string if the value is not presented.
-func (n NotificationConfig) CertPath() string {
-	return config.StringSafe(n.cfg, "certificate")
-}
-
-// KeyPath returns the value of "key_path" config parameter from
-// "notification" subsection of "node" section.
-//
-// Returns empty string if the value is not presented.
-func (n NotificationConfig) KeyPath() string {
-	return config.StringSafe(n.cfg, "key")
-}
-
-// CAPath returns the value of "ca_path" config parameter from
-// "notification" subsection of "node" section.
-//
-// Returns empty string if the value is not presented.
-func (n NotificationConfig) CAPath() string {
-	return config.StringSafe(n.cfg, "ca")
-}

cmd/neofs-node/config/node/config_test.go

@@ -2,7 +2,6 @@ package nodeconfig
 
 import (
 	"testing"
-	"time"
 
 	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-node/config"
@@ -33,25 +32,11 @@ func TestNodeSection(t *testing.T) {
 		relay := Relay(empty)
 		persisessionsPath := PersistentSessions(empty).Path()
 		persistatePath := PersistentState(empty).Path()
-		notificationDefaultEnabled := Notification(empty).Enabled()
-		notificationDefaultEndpoint := Notification(empty).Endpoint()
-		notificationDefaultTimeout := Notification(empty).Timeout()
-		notificationDefaultTopic := Notification(empty).DefaultTopic()
-		notificationDefaultCertPath := Notification(empty).CertPath()
-		notificationDefaultKeyPath := Notification(empty).KeyPath()
-		notificationDefaultCAPath := Notification(empty).CAPath()
 
 		require.Empty(t, attribute)
 		require.Equal(t, false, relay)
 		require.Equal(t, "", persisessionsPath)
 		require.Equal(t, PersistentStatePathDefault, persistatePath)
-		require.Equal(t, false, notificationDefaultEnabled)
-		require.Equal(t, "", notificationDefaultEndpoint)
-		require.Equal(t, NotificationTimeoutDefault, notificationDefaultTimeout)
-		require.Equal(t, "", notificationDefaultTopic)
-		require.Equal(t, "", notificationDefaultCertPath)
-		require.Equal(t, "", notificationDefaultKeyPath)
-		require.Equal(t, "", notificationDefaultCAPath)
 	})
 
 	const path = "../../../../config/example/node"
@@ -64,13 +49,6 @@ func TestNodeSection(t *testing.T) {
 		wKey := Wallet(c)
 		persisessionsPath := PersistentSessions(c).Path()
 		persistatePath := PersistentState(c).Path()
-		notificationEnabled := Notification(c).Enabled()
-		notificationEndpoint := Notification(c).Endpoint()
-		notificationTimeout := Notification(c).Timeout()
-		notificationDefaultTopic := Notification(c).DefaultTopic()
-		notificationCertPath := Notification(c).CertPath()
-		notificationKeyPath := Notification(c).KeyPath()
-		notificationCAPath := Notification(c).CAPath()
 
 		expectedAddr := []struct {
 			str  string
@@ -123,13 +101,6 @@ func TestNodeSection(t *testing.T) {
 
 		require.Equal(t, "/sessions", persisessionsPath)
 		require.Equal(t, "/state", persistatePath)
-		require.Equal(t, true, notificationEnabled)
-		require.Equal(t, "tls://localhost:4222", notificationEndpoint)
-		require.Equal(t, 6*time.Second, notificationTimeout)
-		require.Equal(t, "topic", notificationDefaultTopic)
-		require.Equal(t, "/cert/path", notificationCertPath)
-		require.Equal(t, "/key/path", notificationKeyPath)
-		require.Equal(t, "/ca/path", notificationCAPath)
 	}
 
 	configtest.ForEachFileType(path, fileConfigTest)

cmd/neofs-node/main.go

@@ -137,7 +137,6 @@ func initApp(c *cfg) {
 	initAndLog(c, "accounting", initAccountingService)
 	initAndLog(c, "session", initSessionService)
 	initAndLog(c, "reputation", initReputationService)
-	initAndLog(c, "notification", initNotifications)
 	initAndLog(c, "object", initObjectService)
 	initAndLog(c, "tree", initTreeService)
 
@@ -165,7 +164,6 @@ func runAndLog(c *cfg, name string, logSuccess bool, starter func(*cfg)) {
 }
 
 func bootUp(c *cfg) {
-	runAndLog(c, "NATS", true, connectNats)
 	runAndLog(c, "gRPC", false, serveGRPC)
 	runAndLog(c, "notary", true, makeAndWaitNotaryDeposit)