Use ttrpc to publish runtime v2 events

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

api/next.pb.txt

@@ -4228,67 +4228,6 @@ file {
       json_name: "event"
     }
   }
-  message_type {
-    name: "ForwardRequest"
-    field {
-      name: "envelope"
-      number: 1
-      label: LABEL_OPTIONAL
-      type: TYPE_MESSAGE
-      type_name: ".containerd.services.events.ttrpc.v1.Envelope"
-      json_name: "envelope"
-    }
-  }
-  message_type {
-    name: "SubscribeRequest"
-    field {
-      name: "filters"
-      number: 1
-      label: LABEL_REPEATED
-      type: TYPE_STRING
-      json_name: "filters"
-    }
-  }
-  message_type {
-    name: "Envelope"
-    field {
-      name: "timestamp"
-      number: 1
-      label: LABEL_OPTIONAL
-      type: TYPE_MESSAGE
-      type_name: ".google.protobuf.Timestamp"
-      options {
-        65001: 0
-        65010: 1
-      }
-      json_name: "timestamp"
-    }
-    field {
-      name: "namespace"
-      number: 2
-      label: LABEL_OPTIONAL
-      type: TYPE_STRING
-      json_name: "namespace"
-    }
-    field {
-      name: "topic"
-      number: 3
-      label: LABEL_OPTIONAL
-      type: TYPE_STRING
-      json_name: "topic"
-    }
-    field {
-      name: "event"
-      number: 4
-      label: LABEL_OPTIONAL
-      type: TYPE_MESSAGE
-      type_name: ".google.protobuf.Any"
-      json_name: "event"
-    }
-    options {
-      64400: 1
-    }
-  }
   service {
     name: "Events"
     method {
@@ -4296,17 +4235,6 @@ file {
       input_type: ".containerd.services.events.ttrpc.v1.PublishRequest"
       output_type: ".google.protobuf.Empty"
     }
-    method {
-      name: "Forward"
-      input_type: ".containerd.services.events.ttrpc.v1.ForwardRequest"
-      output_type: ".google.protobuf.Empty"
-    }
-    method {
-      name: "Subscribe"
-      input_type: ".containerd.services.events.ttrpc.v1.SubscribeRequest"
-      output_type: ".containerd.services.events.ttrpc.v1.Envelope"
-      server_streaming: true
-    }
   }
   options {
     go_package: "github.com/containerd/containerd/api/services/ttrpc/events/v1;events"

api/services/ttrpc/events/v1/events.pb.go

@@ -7,22 +7,18 @@ import (
 	context "context"
 	fmt "fmt"
 	github_com_containerd_ttrpc "github.com/containerd/ttrpc"
-	github_com_containerd_typeurl "github.com/containerd/typeurl"
 	proto "github.com/gogo/protobuf/proto"
-	github_com_gogo_protobuf_types "github.com/gogo/protobuf/types"
 	types "github.com/gogo/protobuf/types"
 	io "io"
 	math "math"
 	reflect "reflect"
 	strings "strings"
-	time "time"
 )
 
 // Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
 var _ = fmt.Errorf
 var _ = math.Inf
-var _ = time.Kitchen
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the proto package it is being compiled against.
@@ -70,131 +66,8 @@ func (m *PublishRequest) XXX_DiscardUnknown() {
 
 var xxx_messageInfo_PublishRequest proto.InternalMessageInfo
 
-type ForwardRequest struct {
-	Envelope             *Envelope `protobuf:"bytes,1,opt,name=envelope,proto3" json:"envelope,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}  `json:"-"`
-	XXX_unrecognized     []byte    `json:"-"`
-	XXX_sizecache        int32     `json:"-"`
-}
-
-func (m *ForwardRequest) Reset()      { *m = ForwardRequest{} }
-func (*ForwardRequest) ProtoMessage() {}
-func (*ForwardRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_19f98672016720b5, []int{1}
-}
-func (m *ForwardRequest) XXX_Unmarshal(b []byte) error {
-	return m.Unmarshal(b)
-}
-func (m *ForwardRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	if deterministic {
-		return xxx_messageInfo_ForwardRequest.Marshal(b, m, deterministic)
-	} else {
-		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
-		if err != nil {
-			return nil, err
-		}
-		return b[:n], nil
-	}
-}
-func (m *ForwardRequest) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_ForwardRequest.Merge(m, src)
-}
-func (m *ForwardRequest) XXX_Size() int {
-	return m.Size()
-}
-func (m *ForwardRequest) XXX_DiscardUnknown() {
-	xxx_messageInfo_ForwardRequest.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_ForwardRequest proto.InternalMessageInfo
-
-type SubscribeRequest struct {
-	Filters              []string `protobuf:"bytes,1,rep,name=filters,proto3" json:"filters,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *SubscribeRequest) Reset()      { *m = SubscribeRequest{} }
-func (*SubscribeRequest) ProtoMessage() {}
-func (*SubscribeRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_19f98672016720b5, []int{2}
-}
-func (m *SubscribeRequest) XXX_Unmarshal(b []byte) error {
-	return m.Unmarshal(b)
-}
-func (m *SubscribeRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	if deterministic {
-		return xxx_messageInfo_SubscribeRequest.Marshal(b, m, deterministic)
-	} else {
-		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
-		if err != nil {
-			return nil, err
-		}
-		return b[:n], nil
-	}
-}
-func (m *SubscribeRequest) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_SubscribeRequest.Merge(m, src)
-}
-func (m *SubscribeRequest) XXX_Size() int {
-	return m.Size()
-}
-func (m *SubscribeRequest) XXX_DiscardUnknown() {
-	xxx_messageInfo_SubscribeRequest.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_SubscribeRequest proto.InternalMessageInfo
-
-type Envelope struct {
-	Timestamp            time.Time  `protobuf:"bytes,1,opt,name=timestamp,proto3,stdtime" json:"timestamp"`
-	Namespace            string     `protobuf:"bytes,2,opt,name=namespace,proto3" json:"namespace,omitempty"`
-	Topic                string     `protobuf:"bytes,3,opt,name=topic,proto3" json:"topic,omitempty"`
-	Event                *types.Any `protobuf:"bytes,4,opt,name=event,proto3" json:"event,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}   `json:"-"`
-	XXX_unrecognized     []byte     `json:"-"`
-	XXX_sizecache        int32      `json:"-"`
-}
-
-func (m *Envelope) Reset()      { *m = Envelope{} }
-func (*Envelope) ProtoMessage() {}
-func (*Envelope) Descriptor() ([]byte, []int) {
-	return fileDescriptor_19f98672016720b5, []int{3}
-}
-func (m *Envelope) XXX_Unmarshal(b []byte) error {
-	return m.Unmarshal(b)
-}
-func (m *Envelope) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	if deterministic {
-		return xxx_messageInfo_Envelope.Marshal(b, m, deterministic)
-	} else {
-		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
-		if err != nil {
-			return nil, err
-		}
-		return b[:n], nil
-	}
-}
-func (m *Envelope) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_Envelope.Merge(m, src)
-}
-func (m *Envelope) XXX_Size() int {
-	return m.Size()
-}
-func (m *Envelope) XXX_DiscardUnknown() {
-	xxx_messageInfo_Envelope.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_Envelope proto.InternalMessageInfo
-
 func init() {
 	proto.RegisterType((*PublishRequest)(nil), "containerd.services.events.ttrpc.v1.PublishRequest")
-	proto.RegisterType((*ForwardRequest)(nil), "containerd.services.events.ttrpc.v1.ForwardRequest")
-	proto.RegisterType((*SubscribeRequest)(nil), "containerd.services.events.ttrpc.v1.SubscribeRequest")
-	proto.RegisterType((*Envelope)(nil), "containerd.services.events.ttrpc.v1.Envelope")
 }
 
 func init() {
@@ -202,66 +75,29 @@ func init() {
 }
 
 var fileDescriptor_19f98672016720b5 = []byte{
-	// 478 bytes of a gzipped FileDescriptorProto
+	// 311 bytes of a gzipped FileDescriptorProto
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 }
 
-// Field returns the value for the given fieldpath as a string, if defined.
-// If the value is not defined, the second value will be false.
-func (m *Envelope) Field(fieldpath []string) (string, bool) {
-	if len(fieldpath) == 0 {
-		return "", false
-	}
-
-	switch fieldpath[0] {
-	// unhandled: timestamp
-	case "namespace":
-		return string(m.Namespace), len(m.Namespace) > 0
-	case "topic":
-		return string(m.Topic), len(m.Topic) > 0
-	case "event":
-		decoded, err := github_com_containerd_typeurl.UnmarshalAny(m.Event)
-		if err != nil {
-			return "", false
-		}
-
-		adaptor, ok := decoded.(interface{ Field([]string) (string, bool) })
-		if !ok {
-			return "", false
-		}
-		return adaptor.Field(fieldpath[1:])
-	}
-	return "", false
-}
 func (m *PublishRequest) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
@@ -299,124 +135,6 @@ func (m *PublishRequest) MarshalTo(dAtA []byte) (int, error) {
 	return i, nil
 }
 
-func (m *ForwardRequest) Marshal() (dAtA []byte, err error) {
-	size := m.Size()
-	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
-	if err != nil {
-		return nil, err
-	}
-	return dAtA[:n], nil
-}
-
-func (m *ForwardRequest) MarshalTo(dAtA []byte) (int, error) {
-	var i int
-	_ = i
-	var l int
-	_ = l
-	if m.Envelope != nil {
-		dAtA[i] = 0xa
-		i++
-		i = encodeVarintEvents(dAtA, i, uint64(m.Envelope.Size()))
-		n2, err := m.Envelope.MarshalTo(dAtA[i:])
-		if err != nil {
-			return 0, err
-		}
-		i += n2
-	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
-	}
-	return i, nil
-}
-
-func (m *SubscribeRequest) Marshal() (dAtA []byte, err error) {
-	size := m.Size()
-	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
-	if err != nil {
-		return nil, err
-	}
-	return dAtA[:n], nil
-}
-
-func (m *SubscribeRequest) MarshalTo(dAtA []byte) (int, error) {
-	var i int
-	_ = i
-	var l int
-	_ = l
-	if len(m.Filters) > 0 {
-		for _, s := range m.Filters {
-			dAtA[i] = 0xa
-			i++
-			l = len(s)
-			for l >= 1<<7 {
-				dAtA[i] = uint8(uint64(l)&0x7f | 0x80)
-				l >>= 7
-				i++
-			}
-			dAtA[i] = uint8(l)
-			i++
-			i += copy(dAtA[i:], s)
-		}
-	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
-	}
-	return i, nil
-}
-
-func (m *Envelope) Marshal() (dAtA []byte, err error) {
-	size := m.Size()
-	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
-	if err != nil {
-		return nil, err
-	}
-	return dAtA[:n], nil
-}
-
-func (m *Envelope) MarshalTo(dAtA []byte) (int, error) {
-	var i int
-	_ = i
-	var l int
-	_ = l
-	dAtA[i] = 0xa
-	i++
-	i = encodeVarintEvents(dAtA, i, uint64(github_com_gogo_protobuf_types.SizeOfStdTime(m.Timestamp)))
-	n3, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timestamp, dAtA[i:])
-	if err != nil {
-		return 0, err
-	}
-	i += n3
-	if len(m.Namespace) > 0 {
-		dAtA[i] = 0x12
-		i++
-		i = encodeVarintEvents(dAtA, i, uint64(len(m.Namespace)))
-		i += copy(dAtA[i:], m.Namespace)
-	}
-	if len(m.Topic) > 0 {
-		dAtA[i] = 0x1a
-		i++
-		i = encodeVarintEvents(dAtA, i, uint64(len(m.Topic)))
-		i += copy(dAtA[i:], m.Topic)
-	}
-	if m.Event != nil {
-		dAtA[i] = 0x22
-		i++
-		i = encodeVarintEvents(dAtA, i, uint64(m.Event.Size()))
-		n4, err := m.Event.MarshalTo(dAtA[i:])
-		if err != nil {
-			return 0, err
-		}
-		i += n4
-	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
-	}
-	return i, nil
-}
-
 func encodeVarintEvents(dAtA []byte, offset int, v uint64) int {
 	for v >= 1<<7 {
 		dAtA[offset] = uint8(v&0x7f | 0x80)
@@ -446,66 +164,6 @@ func (m *PublishRequest) Size() (n int) {
 	return n
 }
 
-func (m *ForwardRequest) Size() (n int) {
-	if m == nil {
-		return 0
-	}
-	var l int
-	_ = l
-	if m.Envelope != nil {
-		l = m.Envelope.Size()
-		n += 1 + l + sovEvents(uint64(l))
-	}
-	if m.XXX_unrecognized != nil {
-		n += len(m.XXX_unrecognized)
-	}
-	return n
-}
-
-func (m *SubscribeRequest) Size() (n int) {
-	if m == nil {
-		return 0
-	}
-	var l int
-	_ = l
-	if len(m.Filters) > 0 {
-		for _, s := range m.Filters {
-			l = len(s)
-			n += 1 + l + sovEvents(uint64(l))
-		}
-	}
-	if m.XXX_unrecognized != nil {
-		n += len(m.XXX_unrecognized)
-	}
-	return n
-}
-
-func (m *Envelope) Size() (n int) {
-	if m == nil {
-		return 0
-	}
-	var l int
-	_ = l
-	l = github_com_gogo_protobuf_types.SizeOfStdTime(m.Timestamp)
-	n += 1 + l + sovEvents(uint64(l))
-	l = len(m.Namespace)
-	if l > 0 {
-		n += 1 + l + sovEvents(uint64(l))
-	}
-	l = len(m.Topic)
-	if l > 0 {
-		n += 1 + l + sovEvents(uint64(l))
-	}
-	if m.Event != nil {
-		l = m.Event.Size()
-		n += 1 + l + sovEvents(uint64(l))
-	}
-	if m.XXX_unrecognized != nil {
-		n += len(m.XXX_unrecognized)
-	}
-	return n
-}
-
 func sovEvents(x uint64) (n int) {
 	for {
 		n++
@@ -531,42 +189,6 @@ func (this *PublishRequest) String() string {
 	}, "")
 	return s
 }
-func (this *ForwardRequest) String() string {
-	if this == nil {
-		return "nil"
-	}
-	s := strings.Join([]string{`&ForwardRequest{`,
-		`Envelope:` + strings.Replace(fmt.Sprintf("%v", this.Envelope), "Envelope", "Envelope", 1) + `,`,
-		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
-		`}`,
-	}, "")
-	return s
-}
-func (this *SubscribeRequest) String() string {
-	if this == nil {
-		return "nil"
-	}
-	s := strings.Join([]string{`&SubscribeRequest{`,
-		`Filters:` + fmt.Sprintf("%v", this.Filters) + `,`,
-		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
-		`}`,
-	}, "")
-	return s
-}
-func (this *Envelope) String() string {
-	if this == nil {
-		return "nil"
-	}
-	s := strings.Join([]string{`&Envelope{`,
-		`Timestamp:` + strings.Replace(strings.Replace(this.Timestamp.String(), "Timestamp", "types.Timestamp", 1), `&`, ``, 1) + `,`,
-		`Namespace:` + fmt.Sprintf("%v", this.Namespace) + `,`,
-		`Topic:` + fmt.Sprintf("%v", this.Topic) + `,`,
-		`Event:` + strings.Replace(fmt.Sprintf("%v", this.Event), "Any", "types.Any", 1) + `,`,
-		`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
-		`}`,
-	}, "")
-	return s
-}
 func valueToStringEvents(v interface{}) string {
 	rv := reflect.ValueOf(v)
 	if rv.IsNil() {
@@ -578,8 +200,6 @@ func valueToStringEvents(v interface{}) string {
 
 type EventsService interface {
 	Publish(ctx context.Context, req *PublishRequest) (*types.Empty, error)
-	Forward(ctx context.Context, req *ForwardRequest) (*types.Empty, error)
-	Subscribe(ctx context.Context, req *SubscribeRequest) (*Envelope, error)
 }
 
 func RegisterEventsService(srv *github_com_containerd_ttrpc.Server, svc EventsService) {
@@ -591,20 +211,6 @@ func RegisterEventsService(srv *github_com_containerd_ttrpc.Server, svc EventsSe
 			}
 			return svc.Publish(ctx, &req)
 		},
-		"Forward": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
-			var req ForwardRequest
-			if err := unmarshal(&req); err != nil {
-				return nil, err
-			}
-			return svc.Forward(ctx, &req)
-		},
-		"Subscribe": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
-			var req SubscribeRequest
-			if err := unmarshal(&req); err != nil {
-				return nil, err
-			}
-			return svc.Subscribe(ctx, &req)
-		},
 	})
 }
 
@@ -625,22 +231,6 @@ func (c *eventsClient) Publish(ctx context.Context, req *PublishRequest) (*types
 	}
 	return &resp, nil
 }
-
-func (c *eventsClient) Forward(ctx context.Context, req *ForwardRequest) (*types.Empty, error) {
-	var resp types.Empty
-	if err := c.client.Call(ctx, "containerd.services.events.ttrpc.v1.Events", "Forward", req, &resp); err != nil {
-		return nil, err
-	}
-	return &resp, nil
-}
-
-func (c *eventsClient) Subscribe(ctx context.Context, req *SubscribeRequest) (*Envelope, error) {
-	var resp Envelope
-	if err := c.client.Call(ctx, "containerd.services.events.ttrpc.v1.Events", "Subscribe", req, &resp); err != nil {
-		return nil, err
-	}
-	return &resp, nil
-}
 func (m *PublishRequest) Unmarshal(dAtA []byte) error {
 	l := len(dAtA)
 	iNdEx := 0
@@ -763,369 +353,6 @@ func (m *PublishRequest) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
-func (m *ForwardRequest) Unmarshal(dAtA []byte) error {
-	l := len(dAtA)
-	iNdEx := 0
-	for iNdEx < l {
-		preIndex := iNdEx
-		var wire uint64
-		for shift := uint(0); ; shift += 7 {
-			if shift >= 64 {
-				return ErrIntOverflowEvents
-			}
-			if iNdEx >= l {
-				return io.ErrUnexpectedEOF
-			}
-			b := dAtA[iNdEx]
-			iNdEx++
-			wire |= uint64(b&0x7F) << shift
-			if b < 0x80 {
-				break
-			}
-		}
-		fieldNum := int32(wire >> 3)
-		wireType := int(wire & 0x7)
-		if wireType == 4 {
-			return fmt.Errorf("proto: ForwardRequest: wiretype end group for non-group")
-		}
-		if fieldNum <= 0 {
-			return fmt.Errorf("proto: ForwardRequest: illegal tag %d (wire type %d)", fieldNum, wire)
-		}
-		switch fieldNum {
-		case 1:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Envelope", wireType)
-			}
-			var msglen int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowEvents
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				msglen |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if msglen < 0 {
-				return ErrInvalidLengthEvents
-			}
-			postIndex := iNdEx + msglen
-			if postIndex < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			if m.Envelope == nil {
-				m.Envelope = &Envelope{}
-			}
-			if err := m.Envelope.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
-				return err
-			}
-			iNdEx = postIndex
-		default:
-			iNdEx = preIndex
-			skippy, err := skipEvents(dAtA[iNdEx:])
-			if err != nil {
-				return err
-			}
-			if skippy < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if (iNdEx + skippy) < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if (iNdEx + skippy) > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
-			iNdEx += skippy
-		}
-	}
-
-	if iNdEx > l {
-		return io.ErrUnexpectedEOF
-	}
-	return nil
-}
-func (m *SubscribeRequest) Unmarshal(dAtA []byte) error {
-	l := len(dAtA)
-	iNdEx := 0
-	for iNdEx < l {
-		preIndex := iNdEx
-		var wire uint64
-		for shift := uint(0); ; shift += 7 {
-			if shift >= 64 {
-				return ErrIntOverflowEvents
-			}
-			if iNdEx >= l {
-				return io.ErrUnexpectedEOF
-			}
-			b := dAtA[iNdEx]
-			iNdEx++
-			wire |= uint64(b&0x7F) << shift
-			if b < 0x80 {
-				break
-			}
-		}
-		fieldNum := int32(wire >> 3)
-		wireType := int(wire & 0x7)
-		if wireType == 4 {
-			return fmt.Errorf("proto: SubscribeRequest: wiretype end group for non-group")
-		}
-		if fieldNum <= 0 {
-			return fmt.Errorf("proto: SubscribeRequest: illegal tag %d (wire type %d)", fieldNum, wire)
-		}
-		switch fieldNum {
-		case 1:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Filters", wireType)
-			}
-			var stringLen uint64
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowEvents
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				stringLen |= uint64(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			intStringLen := int(stringLen)
-			if intStringLen < 0 {
-				return ErrInvalidLengthEvents
-			}
-			postIndex := iNdEx + intStringLen
-			if postIndex < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.Filters = append(m.Filters, string(dAtA[iNdEx:postIndex]))
-			iNdEx = postIndex
-		default:
-			iNdEx = preIndex
-			skippy, err := skipEvents(dAtA[iNdEx:])
-			if err != nil {
-				return err
-			}
-			if skippy < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if (iNdEx + skippy) < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if (iNdEx + skippy) > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
-			iNdEx += skippy
-		}
-	}
-
-	if iNdEx > l {
-		return io.ErrUnexpectedEOF
-	}
-	return nil
-}
-func (m *Envelope) Unmarshal(dAtA []byte) error {
-	l := len(dAtA)
-	iNdEx := 0
-	for iNdEx < l {
-		preIndex := iNdEx
-		var wire uint64
-		for shift := uint(0); ; shift += 7 {
-			if shift >= 64 {
-				return ErrIntOverflowEvents
-			}
-			if iNdEx >= l {
-				return io.ErrUnexpectedEOF
-			}
-			b := dAtA[iNdEx]
-			iNdEx++
-			wire |= uint64(b&0x7F) << shift
-			if b < 0x80 {
-				break
-			}
-		}
-		fieldNum := int32(wire >> 3)
-		wireType := int(wire & 0x7)
-		if wireType == 4 {
-			return fmt.Errorf("proto: Envelope: wiretype end group for non-group")
-		}
-		if fieldNum <= 0 {
-			return fmt.Errorf("proto: Envelope: illegal tag %d (wire type %d)", fieldNum, wire)
-		}
-		switch fieldNum {
-		case 1:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Timestamp", wireType)
-			}
-			var msglen int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowEvents
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				msglen |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if msglen < 0 {
-				return ErrInvalidLengthEvents
-			}
-			postIndex := iNdEx + msglen
-			if postIndex < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			if err := github_com_gogo_protobuf_types.StdTimeUnmarshal(&m.Timestamp, dAtA[iNdEx:postIndex]); err != nil {
-				return err
-			}
-			iNdEx = postIndex
-		case 2:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Namespace", wireType)
-			}
-			var stringLen uint64
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowEvents
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				stringLen |= uint64(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			intStringLen := int(stringLen)
-			if intStringLen < 0 {
-				return ErrInvalidLengthEvents
-			}
-			postIndex := iNdEx + intStringLen
-			if postIndex < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.Namespace = string(dAtA[iNdEx:postIndex])
-			iNdEx = postIndex
-		case 3:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Topic", wireType)
-			}
-			var stringLen uint64
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowEvents
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				stringLen |= uint64(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			intStringLen := int(stringLen)
-			if intStringLen < 0 {
-				return ErrInvalidLengthEvents
-			}
-			postIndex := iNdEx + intStringLen
-			if postIndex < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.Topic = string(dAtA[iNdEx:postIndex])
-			iNdEx = postIndex
-		case 4:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Event", wireType)
-			}
-			var msglen int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowEvents
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				msglen |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if msglen < 0 {
-				return ErrInvalidLengthEvents
-			}
-			postIndex := iNdEx + msglen
-			if postIndex < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			if m.Event == nil {
-				m.Event = &types.Any{}
-			}
-			if err := m.Event.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
-				return err
-			}
-			iNdEx = postIndex
-		default:
-			iNdEx = preIndex
-			skippy, err := skipEvents(dAtA[iNdEx:])
-			if err != nil {
-				return err
-			}
-			if skippy < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if (iNdEx + skippy) < 0 {
-				return ErrInvalidLengthEvents
-			}
-			if (iNdEx + skippy) > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
-			iNdEx += skippy
-		}
-	}
-
-	if iNdEx > l {
-		return io.ErrUnexpectedEOF
-	}
-	return nil
-}
 func skipEvents(dAtA []byte) (n int, err error) {
 	l := len(dAtA)
 	iNdEx := 0

api/services/ttrpc/events/v1/events.proto

@@ -17,40 +17,9 @@ service Events {
 	// introspected from the context. The envelope will then be dispatched.
 	rpc Publish(PublishRequest) returns (google.protobuf.Empty);
 
-	// Forward sends an event that has already been packaged into an envelope
-	// with a timestamp and namespace.
-	//
-	// This is useful if earlier timestamping is required or when forwarding on
-	// behalf of another component, namespace or publisher.
-	rpc Forward(ForwardRequest) returns (google.protobuf.Empty);
-
-	// Subscribe to a stream of events, possibly returning only that match any
-	// of the provided filters.
-	//
-	// Unlike many other methods in containerd, subscribers will get messages
-	// from all namespaces unless otherwise specified. If this is not desired,
-	// a filter can be provided in the format 'namespace==<namespace>' to
-	// restrict the received events.
-	rpc Subscribe(SubscribeRequest) returns (stream Envelope);
 }
 
 message PublishRequest {
 	string topic = 1;
 	google.protobuf.Any event = 2;
 }
-
-message ForwardRequest {
-	Envelope envelope = 1;
-}
-
-message SubscribeRequest {
-	repeated string filters = 1;
-}
-
-message Envelope {
-	option (containerd.plugin.fieldpath) = true;
-	google.protobuf.Timestamp timestamp = 1 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
-	string namespace = 2;
-	string topic = 3;
-	google.protobuf.Any event = 4;
-}

runtime/v2/runc/v1/service.go

@@ -117,7 +117,6 @@ func newCommand(ctx context.Context, id, containerdBinary, containerdAddress str
 		"-namespace", ns,
 		"-id", id,
 		"-address", containerdAddress,
-		"-publish-binary", containerdBinary,
 	}
 	cmd := exec.Command(self, args...)
 	cmd.Dir = cwd

runtime/v2/runc/v2/service.go

@@ -133,7 +133,6 @@ func newCommand(ctx context.Context, id, containerdBinary, containerdAddress str
 		"-namespace", ns,
 		"-id", id,
 		"-address", containerdAddress,
-		"-publish-binary", containerdBinary,
 	}
 	cmd := exec.Command(self, args...)
 	cmd.Dir = cwd

runtime/v2/shim/shim.go

@@ -20,17 +20,20 @@ import (
 	"context"
 	"flag"
 	"fmt"
+	"net"
 	"os"
 	"runtime"
 	"runtime/debug"
 	"strings"
 	"time"
 
+	v1 "github.com/containerd/containerd/api/services/ttrpc/events/v1"
 	"github.com/containerd/containerd/events"
 	"github.com/containerd/containerd/log"
 	"github.com/containerd/containerd/namespaces"
 	shimapi "github.com/containerd/containerd/runtime/v2/task"
 	"github.com/containerd/ttrpc"
+	"github.com/containerd/typeurl"
 	"github.com/gogo/protobuf/proto"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
@@ -153,11 +156,16 @@ func run(id string, initFunc Init, config Config) error {
 			return err
 		}
 	}
+
 	publisher := &remoteEventsPublisher{
-		address:              addressFlag,
+		address: fmt.Sprintf("%s.ttrpc", addressFlag),
-		containerdBinaryPath: containerdBinaryFlag,
-		noReaper:             config.NoReaper,
 	}
+	conn, err := connect(publisher.address, dialer)
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+	publisher.client = v1.NewEventsClient(ttrpc.NewClient(conn))
 	if namespaceFlag == "" {
 		return fmt.Errorf("shim namespace cannot be empty")
 	}
@@ -283,6 +291,21 @@ func dumpStacks(logger *logrus.Entry) {
 
 type remoteEventsPublisher struct {
 	address string
-	containerdBinaryPath string
+	client  v1.EventsService
-	noReaper             bool
+}
+
+func (l *remoteEventsPublisher) Publish(ctx context.Context, topic string, event events.Event) error {
+	any, err := typeurl.MarshalAny(event)
+	if err != nil {
+		return err
+	}
+	_, err = l.client.Publish(ctx, &v1.PublishRequest{
+		Topic: topic,
+		Event: any,
+	})
+	return err
+}
+
+func connect(address string, d func(string, time.Duration) (net.Conn, error)) (net.Conn, error) {
+	return d(address, 100*time.Second)
 }

runtime/v2/shim/shim_unix.go

@@ -19,31 +19,21 @@
 package shim
 
 import (
-	"bytes"
 	"context"
 	"io"
 	"net"
 	"os"
-	"os/exec"
 	"os/signal"
-	"sync"
+	"strings"
 	"syscall"
+	"time"
 
-	"github.com/containerd/containerd/events"
-	"github.com/containerd/containerd/namespaces"
 	"github.com/containerd/fifo"
-	"github.com/containerd/typeurl"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 	"golang.org/x/sys/unix"
 )
 
-var bufPool = sync.Pool{
-	New: func() interface{} {
-		return bytes.NewBuffer(nil)
-	},
-}
-
 // setupSignals creates a new signal handler for all signals and sets the shim as a
 // sub-reaper so that the container processes are reparented
 func setupSignals(config Config) (chan os.Signal, error) {
@@ -101,41 +91,7 @@ func openLog(ctx context.Context, _ string) (io.Writer, error) {
 	return fifo.OpenFifo(ctx, "log", unix.O_WRONLY, 0700)
 }
 
-func (l *remoteEventsPublisher) Publish(ctx context.Context, topic string, event events.Event) error {
+func dialer(address string, timeout time.Duration) (net.Conn, error) {
-	ns, _ := namespaces.Namespace(ctx)
+	address = strings.TrimPrefix(address, "unix://")
-	encoded, err := typeurl.MarshalAny(event)
+	return net.DialTimeout("unix", address, timeout)
-	if err != nil {
-		return err
-	}
-	data, err := encoded.Marshal()
-	if err != nil {
-		return err
-	}
-	cmd := exec.CommandContext(ctx, l.containerdBinaryPath, "--address", l.address, "publish", "--topic", topic, "--namespace", ns)
-	cmd.Stdin = bytes.NewReader(data)
-	b := bufPool.Get().(*bytes.Buffer)
-	defer bufPool.Put(b)
-	cmd.Stdout = b
-	cmd.Stderr = b
-	if l.noReaper {
-		if err := cmd.Start(); err != nil {
-			return err
-		}
-		if err := cmd.Wait(); err != nil {
-			return errors.Wrapf(err, "failed to publish event: %s", b.String())
-		}
-		return nil
-	}
-	c, err := Default.Start(cmd)
-	if err != nil {
-		return err
-	}
-	status, err := Default.Wait(cmd, c)
-	if err != nil {
-		return errors.Wrapf(err, "failed to publish event: %s", b.String())
-	}
-	if status != 0 {
-		return errors.Errorf("failed to publish event: %s", b.String())
-	}
-	return nil
 }

runtime/v2/shim/shim_windows.go

@@ -25,15 +25,13 @@ import (
 	"io"
 	"net"
 	"os"
-	"os/exec"
 	"sync"
+	"time"
 	"unsafe"
 
 	winio "github.com/Microsoft/go-winio"
-	"github.com/containerd/containerd/events"
 	"github.com/containerd/containerd/namespaces"
 	"github.com/containerd/ttrpc"
-	"github.com/containerd/typeurl"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 	"golang.org/x/sys/windows"
@@ -286,17 +284,34 @@ func openLog(ctx context.Context, id string) (io.Writer, error) {
 	return dswl, nil
 }
 
-func (l *remoteEventsPublisher) Publish(ctx context.Context, topic string, event events.Event) error {
+func dialer(address string, timeout time.Duration) (net.Conn, error) {
-	ns, _ := namespaces.Namespace(ctx)
+	var c net.Conn
-	encoded, err := typeurl.MarshalAny(event)
+	var lastError error
-	if err != nil {
+	timedOutError := errors.Errorf("timed out waiting for npipe %s", address)
-		return err
+	start := time.Now()
+	for {
+		remaining := timeout - time.Since(start)
+		if remaining <= 0 {
+			lastError = timedOutError
+			break
 		}
-	data, err := encoded.Marshal()
+		c, lastError = winio.DialPipe(address, &remaining)
-	if err != nil {
+		if lastError == nil {
-		return err
+			break
 		}
-	cmd := exec.CommandContext(ctx, l.containerdBinaryPath, "--address", l.address, "publish", "--topic", topic, "--namespace", ns)
+		if !os.IsNotExist(lastError) {
-	cmd.Stdin = bytes.NewReader(data)
+			break
-	return cmd.Run()
+		}
+		// There is nobody serving the pipe. We limit the timeout for this case
+		// to 5 seconds because any shim that would serve this endpoint should
+		// serve it within 5 seconds. We use the passed in timeout for the
+		// `DialPipe` timeout if the pipe exists however to give the pipe time
+		// to `Accept` the connection.
+		if time.Since(start) >= 5*time.Second {
+			lastError = timedOutError
+			break
+		}
+		time.Sleep(10 * time.Millisecond)
+	}
+	return c, lastError
 }

services/events/ttrpc.go

@@ -21,7 +21,6 @@ import (
 
 	api "github.com/containerd/containerd/api/services/ttrpc/events/v1"
 	"github.com/containerd/containerd/errdefs"
-	"github.com/containerd/containerd/events"
 	"github.com/containerd/containerd/events/exchange"
 	ptypes "github.com/gogo/protobuf/types"
 )
@@ -37,24 +36,3 @@ func (s *ttrpcService) Publish(ctx context.Context, r *api.PublishRequest) (*pty
 
 	return &ptypes.Empty{}, nil
 }
-
-func (s *ttrpcService) Forward(ctx context.Context, r *api.ForwardRequest) (*ptypes.Empty, error) {
-	if err := s.events.Forward(ctx, fromTTProto(r.Envelope)); err != nil {
-		return nil, errdefs.ToGRPC(err)
-	}
-
-	return &ptypes.Empty{}, nil
-}
-
-func (s *ttrpcService) Subscribe(ctx context.Context, req *api.SubscribeRequest) (*api.Envelope, error) {
-	return nil, errdefs.ToGRPCf(errdefs.ErrNotImplemented, "ttrpc does not support streaming")
-}
-
-func fromTTProto(env *api.Envelope) *events.Envelope {
-	return &events.Envelope{
-		Timestamp: env.Timestamp,
-		Namespace: env.Namespace,
-		Topic:     env.Topic,
-		Event:     env.Event,
-	}
-}

services/server/server_unsupported.go

@@ -22,8 +22,13 @@ import (
 	"context"
 
 	srvconfig "github.com/containerd/containerd/services/server/config"
+	"github.com/containerd/ttrpc"
 )
 
 func apply(_ context.Context, _ *srvconfig.Config) error {
 	return nil
 }
+
+func newTTRPCServer() (*ttrpc.Server, error) {
+	return ttrpc.NewServer()
+}