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[signal] Use signal dispatcher (#2373)
This commit is contained in:
pascal-fischer
GitHub
parent
5ac6f56594
commit
92a0092ad5
1
go.mod
1
go.mod
@ -58,6 +58,7 @@ require (
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github.com/mitchellh/hashstructure/v2 v2.0.2
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github.com/nadoo/ipset v0.5.0
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github.com/netbirdio/management-integrations/integrations v0.0.0-20240703085513-32605f7ffd8e
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github.com/netbirdio/signal-dispatcher/dispatcher v0.0.0-20240820130728-bc0683599080
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github.com/okta/okta-sdk-golang/v2 v2.18.0
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github.com/oschwald/maxminddb-golang v1.12.0
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github.com/patrickmn/go-cache v2.1.0+incompatible
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2
go.sum
2
go.sum
@ -477,6 +477,8 @@ github.com/netbirdio/management-integrations/integrations v0.0.0-20240703085513-
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github.com/netbirdio/management-integrations/integrations v0.0.0-20240703085513-32605f7ffd8e/go.mod h1:nykwWZnxb+sJz2Z//CEq45CMRWSHllH8pODKRB8eY7Y=
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github.com/netbirdio/service v0.0.0-20230215170314-b923b89432b0 h1:hirFRfx3grVA/9eEyjME5/z3nxdJlN9kfQpvWWPk32g=
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github.com/netbirdio/service v0.0.0-20230215170314-b923b89432b0/go.mod h1:CIMRFEJVL+0DS1a3Nx06NaMn4Dz63Ng6O7dl0qH0zVM=
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github.com/netbirdio/signal-dispatcher/dispatcher v0.0.0-20240820130728-bc0683599080 h1:mXJkoWLdqJTlkQ7DgQ536kcXHXIdUPeagkN8i4eFDdg=
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github.com/netbirdio/signal-dispatcher/dispatcher v0.0.0-20240820130728-bc0683599080/go.mod h1:5/sjFmLb8O96B5737VCqhHyGRzNFIaN/Bu7ZodXc3qQ=
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github.com/netbirdio/wireguard-go v0.0.0-20240105182236-6c340dd55aed h1:t0UADZUJDaaZgfKrt8JUPrOLL9Mg/ryjP85RAH53qgs=
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github.com/netbirdio/wireguard-go v0.0.0-20240105182236-6c340dd55aed/go.mod h1:tkCQ4FQXmpAgYVh++1cq16/dH4QJtmvpRv19DWGAHSA=
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github.com/nicksnyder/go-i18n/v2 v2.4.0 h1:3IcvPOAvnCKwNm0TB0dLDTuawWEj+ax/RERNC+diLMM=
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@ -18,16 +18,20 @@ type Peer struct {
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StreamID int64
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//a gRpc connection stream to the Peer
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// a gRpc connection stream to the Peer
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Stream proto.SignalExchange_ConnectStreamServer
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// registration time
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RegisteredAt time.Time
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}
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// NewPeer creates a new instance of a connected Peer
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func NewPeer(id string, stream proto.SignalExchange_ConnectStreamServer) *Peer {
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return &Peer{
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Id: id,
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Stream: stream,
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StreamID: time.Now().UnixNano(),
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Id: id,
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Stream: stream,
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StreamID: time.Now().UnixNano(),
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RegisteredAt: time.Now(),
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}
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}
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@ -13,6 +13,8 @@ import (
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"google.golang.org/grpc/metadata"
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"google.golang.org/grpc/status"
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"github.com/netbirdio/signal-dispatcher/dispatcher"
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"github.com/netbirdio/netbird/signal/metrics"
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"github.com/netbirdio/netbird/signal/peer"
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"github.com/netbirdio/netbird/signal/proto"
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@ -40,8 +42,8 @@ const (
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type Server struct {
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registry *peer.Registry
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proto.UnimplementedSignalExchangeServer
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metrics *metrics.AppMetrics
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dispatcher *dispatcher.Dispatcher
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metrics *metrics.AppMetrics
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}
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// NewServer creates a new Signal server
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@ -51,9 +53,15 @@ func NewServer(meter metric.Meter) (*Server, error) {
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return nil, fmt.Errorf("creating app metrics: %v", err)
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}
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dispatcher, err := dispatcher.NewDispatcher()
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if err != nil {
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return nil, fmt.Errorf("creating dispatcher: %v", err)
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}
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s := &Server{
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registry: peer.NewRegistry(appMetrics),
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metrics: appMetrics,
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dispatcher: dispatcher,
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registry: peer.NewRegistry(appMetrics),
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metrics: appMetrics,
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}
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return s, nil
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@ -61,57 +69,31 @@ func NewServer(meter metric.Meter) (*Server, error) {
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// Send forwards a message to the signal peer
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func (s *Server) Send(ctx context.Context, msg *proto.EncryptedMessage) (*proto.EncryptedMessage, error) {
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if !s.registry.IsPeerRegistered(msg.Key) {
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s.metrics.MessageForwardFailures.Add(ctx, 1, metric.WithAttributes(attribute.String(labelType, labelTypeNotRegistered)))
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log.Debugf("received a new message to send from peer [%s] to peer [%s]", msg.Key, msg.RemoteKey)
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return nil, fmt.Errorf("peer %s is not registered", msg.Key)
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if msg.RemoteKey == "dummy" {
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// Test message send during netbird status
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return &proto.EncryptedMessage{}, nil
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}
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getRegistrationStart := time.Now()
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if dstPeer, found := s.registry.Get(msg.RemoteKey); found {
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s.metrics.GetRegistrationDelay.Record(ctx, float64(time.Since(getRegistrationStart).Nanoseconds())/1e6, metric.WithAttributes(attribute.String(labelType, labelTypeMessage), attribute.String(labelRegistrationStatus, labelRegistrationFound)))
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start := time.Now()
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//forward the message to the target peer
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if err := dstPeer.Stream.Send(msg); err != nil {
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log.Errorf("error while forwarding message from peer [%s] to peer [%s] %v", msg.Key, msg.RemoteKey, err)
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//todo respond to the sender?
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s.metrics.MessageForwardFailures.Add(ctx, 1, metric.WithAttributes(attribute.String(labelType, labelTypeError)))
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} else {
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s.metrics.MessageForwardLatency.Record(ctx, float64(time.Since(start).Nanoseconds())/1e6, metric.WithAttributes(attribute.String(labelType, labelTypeMessage)))
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s.metrics.MessagesForwarded.Add(context.Background(), 1)
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}
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} else {
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s.metrics.GetRegistrationDelay.Record(ctx, float64(time.Since(getRegistrationStart).Nanoseconds())/1e6, metric.WithAttributes(attribute.String(labelType, labelTypeMessage), attribute.String(labelRegistrationStatus, labelRegistrationNotFound)))
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log.Debugf("message from peer [%s] can't be forwarded to peer [%s] because destination peer is not connected", msg.Key, msg.RemoteKey)
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//todo respond to the sender?
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s.metrics.MessageForwardFailures.Add(ctx, 1, metric.WithAttributes(attribute.String(labelType, labelTypeNotConnected)))
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if _, found := s.registry.Get(msg.RemoteKey); found {
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s.forwardMessageToPeer(ctx, msg)
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return &proto.EncryptedMessage{}, nil
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}
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return &proto.EncryptedMessage{}, nil
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return s.dispatcher.SendMessage(context.Background(), msg)
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}
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// ConnectStream connects to the exchange stream
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func (s *Server) ConnectStream(stream proto.SignalExchange_ConnectStreamServer) error {
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p, err := s.connectPeer(stream)
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p, err := s.RegisterPeer(stream)
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if err != nil {
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return err
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}
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startRegister := time.Now()
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defer s.DeregisterPeer(p)
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s.metrics.ActivePeers.Add(stream.Context(), 1)
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defer func() {
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log.Infof("peer disconnected [%s] [streamID %d] ", p.Id, p.StreamID)
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s.registry.Deregister(p)
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s.metrics.PeerConnectionDuration.Record(stream.Context(), int64(time.Since(startRegister).Seconds()))
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s.metrics.ActivePeers.Add(context.Background(), -1)
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}()
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//needed to confirm that the peer has been registered so that the client can proceed
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// needed to confirm that the peer has been registered so that the client can proceed
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header := metadata.Pairs(proto.HeaderRegistered, "1")
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err = stream.SendHeader(header)
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if err != nil {
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@ -119,11 +101,10 @@ func (s *Server) ConnectStream(stream proto.SignalExchange_ConnectStreamServer)
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return err
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}
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log.Infof("peer connected [%s] [streamID %d] ", p.Id, p.StreamID)
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log.Debugf("peer connected [%s] [streamID %d] ", p.Id, p.StreamID)
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for {
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//read incoming messages
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// read incoming messages
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msg, err := stream.Recv()
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if err == io.EOF {
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break
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@ -131,44 +112,28 @@ func (s *Server) ConnectStream(stream proto.SignalExchange_ConnectStreamServer)
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return err
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}
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log.Debugf("received a new message from peer [%s] to peer [%s]", p.Id, msg.RemoteKey)
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log.Debugf("Received a response from peer [%s] to peer [%s]", msg.Key, msg.RemoteKey)
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getRegistrationStart := time.Now()
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// lookup the target peer where the message is going to
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if dstPeer, found := s.registry.Get(msg.RemoteKey); found {
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s.metrics.GetRegistrationDelay.Record(stream.Context(), float64(time.Since(getRegistrationStart).Nanoseconds())/1e6, metric.WithAttributes(attribute.String(labelType, labelTypeStream), attribute.String(labelRegistrationStatus, labelRegistrationFound)))
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start := time.Now()
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//forward the message to the target peer
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if err := dstPeer.Stream.Send(msg); err != nil {
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log.Errorf("error while forwarding message from peer [%s] to peer [%s] %v", p.Id, msg.RemoteKey, err)
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//todo respond to the sender?
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s.metrics.MessageForwardFailures.Add(stream.Context(), 1, metric.WithAttributes(attribute.String(labelType, labelTypeError)))
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} else {
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// in milliseconds
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s.metrics.MessageForwardLatency.Record(stream.Context(), float64(time.Since(start).Nanoseconds())/1e6, metric.WithAttributes(attribute.String(labelType, labelTypeStream)))
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s.metrics.MessagesForwarded.Add(stream.Context(), 1)
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}
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} else {
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s.metrics.GetRegistrationDelay.Record(stream.Context(), float64(time.Since(getRegistrationStart).Nanoseconds())/1e6, metric.WithAttributes(attribute.String(labelType, labelTypeStream), attribute.String(labelRegistrationStatus, labelRegistrationNotFound)))
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s.metrics.MessageForwardFailures.Add(stream.Context(), 1, metric.WithAttributes(attribute.String(labelType, labelTypeNotConnected)))
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log.Debugf("message from peer [%s] can't be forwarded to peer [%s] because destination peer is not connected", p.Id, msg.RemoteKey)
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//todo respond to the sender?
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_, err = s.dispatcher.SendMessage(stream.Context(), msg)
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if err != nil {
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log.Debugf("error while sending message from peer [%s] to peer [%s] %v", msg.Key, msg.RemoteKey, err)
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}
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}
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<-stream.Context().Done()
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return stream.Context().Err()
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}
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// Handles initial Peer connection.
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// Each connection must provide an Id header.
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// At this moment the connecting Peer will be registered in the peer.Registry
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func (s Server) connectPeer(stream proto.SignalExchange_ConnectStreamServer) (*peer.Peer, error) {
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func (s *Server) RegisterPeer(stream proto.SignalExchange_ConnectStreamServer) (*peer.Peer, error) {
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log.Debugf("registering new peer")
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if meta, hasMeta := metadata.FromIncomingContext(stream.Context()); hasMeta {
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if id, found := meta[proto.HeaderId]; found {
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p := peer.NewPeer(id[0], stream)
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s.registry.Register(p)
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s.dispatcher.ListenForMessages(stream.Context(), p.Id, s.forwardMessageToPeer)
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s.metrics.ActivePeers.Add(stream.Context(), 1)
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return p, nil
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} else {
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@ -180,3 +145,38 @@ func (s Server) connectPeer(stream proto.SignalExchange_ConnectStreamServer) (*p
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return nil, status.Errorf(codes.FailedPrecondition, "missing connection stream meta")
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}
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}
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func (s *Server) DeregisterPeer(p *peer.Peer) {
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log.Debugf("peer disconnected [%s] [streamID %d] ", p.Id, p.StreamID)
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s.registry.Deregister(p)
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s.metrics.PeerConnectionDuration.Record(p.Stream.Context(), int64(time.Since(p.RegisteredAt).Seconds()))
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s.metrics.ActivePeers.Add(context.Background(), -1)
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}
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func (s *Server) forwardMessageToPeer(ctx context.Context, msg *proto.EncryptedMessage) {
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log.Debugf("forwarding a new message from peer [%s] to peer [%s]", msg.Key, msg.RemoteKey)
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getRegistrationStart := time.Now()
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// lookup the target peer where the message is going to
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if dstPeer, found := s.registry.Get(msg.RemoteKey); found {
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s.metrics.GetRegistrationDelay.Record(ctx, float64(time.Since(getRegistrationStart).Nanoseconds())/1e6, metric.WithAttributes(attribute.String(labelType, labelTypeStream), attribute.String(labelRegistrationStatus, labelRegistrationFound)))
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start := time.Now()
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// forward the message to the target peer
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if err := dstPeer.Stream.Send(msg); err != nil {
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log.Warnf("error while forwarding message from peer [%s] to peer [%s] %v", msg.Key, msg.RemoteKey, err)
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// todo respond to the sender?
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s.metrics.MessageForwardFailures.Add(ctx, 1, metric.WithAttributes(attribute.String(labelType, labelTypeError)))
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} else {
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// in milliseconds
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s.metrics.MessageForwardLatency.Record(ctx, float64(time.Since(start).Nanoseconds())/1e6, metric.WithAttributes(attribute.String(labelType, labelTypeStream)))
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s.metrics.MessagesForwarded.Add(ctx, 1)
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}
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} else {
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s.metrics.GetRegistrationDelay.Record(ctx, float64(time.Since(getRegistrationStart).Nanoseconds())/1e6, metric.WithAttributes(attribute.String(labelType, labelTypeStream), attribute.String(labelRegistrationStatus, labelRegistrationNotFound)))
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s.metrics.MessageForwardFailures.Add(ctx, 1, metric.WithAttributes(attribute.String(labelType, labelTypeNotConnected)))
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log.Debugf("message from peer [%s] can't be forwarded to peer [%s] because destination peer is not connected", msg.Key, msg.RemoteKey)
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// todo respond to the sender?
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}
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}
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