Update containerd to 32e788a8be.

Signed-off-by: Lantao Liu <lantaol@google.com>

vendor/github.com/containerd/containerd/api/services/ttrpc/events/v1/doc.go

@@ -0,0 +1,18 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+// Package events defines the event pushing and subscription service.
+package events

vendor/github.com/containerd/containerd/api/services/ttrpc/events/v1/events.pb.go

@@ -0,0 +1,778 @@
+// Code generated by protoc-gen-gogo. DO NOT EDIT.
+// source: github.com/containerd/containerd/api/services/ttrpc/events/v1/events.proto
+
+package events
+
+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.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package
+
+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{0}
+}
+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 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{1}
+}
+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((*ForwardRequest)(nil), "containerd.services.events.ttrpc.v1.ForwardRequest")
+	proto.RegisterType((*Envelope)(nil), "containerd.services.events.ttrpc.v1.Envelope")
+}
+
+func init() {
+	proto.RegisterFile("github.com/containerd/containerd/api/services/ttrpc/events/v1/events.proto", fileDescriptor_19f98672016720b5)
+}
+
+var fileDescriptor_19f98672016720b5 = []byte{
+	// 396 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xa4, 0x52, 0xc1, 0x8e, 0xd3, 0x30,
+	0x10, 0x8d, 0x61, 0x77, 0x69, 0x8d, 0xc4, 0xc1, 0xaa, 0x50, 0x08, 0x28, 0x59, 0x2d, 0x97, 0x15,
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+	0x3a, 0x4d, 0x2d, 0x25, 0xb6, 0x49, 0x9c, 0xa0, 0xde, 0xfa, 0x09, 0x7c, 0x0c, 0x17, 0xfe, 0xa0,
+	0x47, 0x8e, 0x9c, 0x80, 0xe6, 0x4b, 0x50, 0x9d, 0xa4, 0x81, 0xf6, 0x40, 0xa5, 0xbd, 0xbd, 0xcc,
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+	0xd9, 0xa4, 0x98, 0x31, 0x9d, 0x14, 0xb1, 0x90, 0x6c, 0x26, 0x20, 0x99, 0x6a, 0x6e, 0xe6, 0x75,
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+	0x6e, 0x2e, 0x17, 0x0d, 0x75, 0x7f, 0x97, 0x82, 0x54, 0x9b, 0x96, 0x0c, 0x76, 0x49, 0x23, 0x52,
+	0xc8, 0x0d, 0x4f, 0x75, 0x2d, 0x38, 0x7b, 0x8f, 0xef, 0xbc, 0x54, 0xd9, 0x67, 0x9e, 0x4d, 0x43,
+	0xf8, 0x54, 0x40, 0x6e, 0xc8, 0x2b, 0xdc, 0x03, 0x59, 0x42, 0xa2, 0x34, 0xb8, 0xe8, 0x14, 0x9d,
+	0xdf, 0xbe, 0x7c, 0x4c, 0x0f, 0x58, 0x9d, 0x8e, 0x1a, 0x53, 0xb8, 0xb5, 0x9f, 0x7d, 0x45, 0xb8,
+	0xd7, 0x96, 0xc9, 0x10, 0xf7, 0xb7, 0xe1, 0x4d, 0x63, 0x8f, 0xd6, 0xe3, 0xd1, 0x76, 0x3c, 0xfa,
+	0xa6, 0x55, 0x0c, 0x7b, 0xab, 0x9f, 0x81, 0xf3, 0xe5, 0x57, 0x80, 0xc2, 0xce, 0x46, 0x1e, 0xe0,
+	0xbe, 0xe4, 0x29, 0xe4, 0x9a, 0x47, 0xe0, 0xde, 0x38, 0x45, 0xe7, 0xfd, 0xb0, 0x2b, 0x90, 0x01,
+	0x3e, 0x36, 0x4a, 0x8b, 0xc8, 0xbd, 0x69, 0x99, 0xfa, 0x83, 0x3c, 0xc2, 0xc7, 0x76, 0x54, 0xf7,
+	0xc8, 0x66, 0x0e, 0xf6, 0x32, 0x9f, 0xcb, 0x45, 0x58, 0x4b, 0x9e, 0x1c, 0x2d, 0xbf, 0x05, 0xe8,
+	0xf2, 0x23, 0x3e, 0x19, 0xd9, 0xe5, 0xc8, 0x5b, 0x7c, 0xab, 0xb9, 0x0e, 0xb9, 0x3a, 0xe8, 0x08,
+	0xff, 0xde, 0xd2, 0xbb, 0xbb, 0x17, 0x36, 0xda, 0xfc, 0x9c, 0xe1, 0x87, 0xd5, 0xda, 0x77, 0x7e,
+	0xac, 0x7d, 0x67, 0x59, 0xf9, 0x68, 0x55, 0xf9, 0xe8, 0x7b, 0xe5, 0xa3, 0xdf, 0x95, 0x8f, 0xde,
+	0xbd, 0xb8, 0xd6, 0x8b, 0x7d, 0x5a, 0xa3, 0xb1, 0x33, 0x46, 0x93, 0x13, 0x9b, 0x79, 0xf5, 0x27,
+	0x00, 0x00, 0xff, 0xff, 0xd4, 0x90, 0xbd, 0x09, 0x04, 0x03, 0x00, 0x00,
+}
+
+// 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 *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()))
+		n1, err := m.Envelope.MarshalTo(dAtA[i:])
+		if err != nil {
+			return 0, err
+		}
+		i += n1
+	}
+	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)))
+	n2, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timestamp, dAtA[i:])
+	if err != nil {
+		return 0, err
+	}
+	i += n2
+	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()))
+		n3, err := m.Event.MarshalTo(dAtA[i:])
+		if err != nil {
+			return 0, err
+		}
+		i += n3
+	}
+	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)
+		v >>= 7
+		offset++
+	}
+	dAtA[offset] = uint8(v)
+	return offset + 1
+}
+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 *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++
+		x >>= 7
+		if x == 0 {
+			break
+		}
+	}
+	return n
+}
+func sozEvents(x uint64) (n int) {
+	return sovEvents(uint64((x << 1) ^ uint64((int64(x) >> 63))))
+}
+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 *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() {
+		return "nil"
+	}
+	pv := reflect.Indirect(rv).Interface()
+	return fmt.Sprintf("*%v", pv)
+}
+
+type EventsService interface {
+	Forward(ctx context.Context, req *ForwardRequest) (*types.Empty, error)
+}
+
+func RegisterEventsService(srv *github_com_containerd_ttrpc.Server, svc EventsService) {
+	srv.Register("containerd.services.events.ttrpc.v1.Events", map[string]github_com_containerd_ttrpc.Method{
+		"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)
+		},
+	})
+}
+
+type eventsClient struct {
+	client *github_com_containerd_ttrpc.Client
+}
+
+func NewEventsClient(client *github_com_containerd_ttrpc.Client) EventsService {
+	return &eventsClient{
+		client: client,
+	}
+}
+
+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 (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 *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
+	for iNdEx < l {
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return 0, ErrIntOverflowEvents
+			}
+			if iNdEx >= l {
+				return 0, io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		wireType := int(wire & 0x7)
+		switch wireType {
+		case 0:
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowEvents
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				iNdEx++
+				if dAtA[iNdEx-1] < 0x80 {
+					break
+				}
+			}
+			return iNdEx, nil
+		case 1:
+			iNdEx += 8
+			return iNdEx, nil
+		case 2:
+			var length int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowEvents
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				length |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if length < 0 {
+				return 0, ErrInvalidLengthEvents
+			}
+			iNdEx += length
+			if iNdEx < 0 {
+				return 0, ErrInvalidLengthEvents
+			}
+			return iNdEx, nil
+		case 3:
+			for {
+				var innerWire uint64
+				var start int = iNdEx
+				for shift := uint(0); ; shift += 7 {
+					if shift >= 64 {
+						return 0, ErrIntOverflowEvents
+					}
+					if iNdEx >= l {
+						return 0, io.ErrUnexpectedEOF
+					}
+					b := dAtA[iNdEx]
+					iNdEx++
+					innerWire |= (uint64(b) & 0x7F) << shift
+					if b < 0x80 {
+						break
+					}
+				}
+				innerWireType := int(innerWire & 0x7)
+				if innerWireType == 4 {
+					break
+				}
+				next, err := skipEvents(dAtA[start:])
+				if err != nil {
+					return 0, err
+				}
+				iNdEx = start + next
+				if iNdEx < 0 {
+					return 0, ErrInvalidLengthEvents
+				}
+			}
+			return iNdEx, nil
+		case 4:
+			return iNdEx, nil
+		case 5:
+			iNdEx += 4
+			return iNdEx, nil
+		default:
+			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
+		}
+	}
+	panic("unreachable")
+}
+
+var (
+	ErrInvalidLengthEvents = fmt.Errorf("proto: negative length found during unmarshaling")
+	ErrIntOverflowEvents   = fmt.Errorf("proto: integer overflow")
+)

vendor/github.com/containerd/containerd/api/services/ttrpc/events/v1/events.proto

@@ -0,0 +1,32 @@
+syntax = "proto3";
+
+package containerd.services.events.ttrpc.v1;
+
+import weak "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
+import weak "gogoproto/gogo.proto";
+import "google/protobuf/any.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/timestamp.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/ttrpc/events/v1;events";
+
+service Events {
+	// 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);
+}
+
+message ForwardRequest {
+	Envelope envelope = 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;
+}

vendor/github.com/containerd/containerd/cmd/containerd/command/config_linux.go

@@ -30,5 +30,7 @@ func defaultConfig() *srvconfig.Config {
 			MaxRecvMsgSize: defaults.DefaultMaxRecvMsgSize,
 			MaxSendMsgSize: defaults.DefaultMaxSendMsgSize,
 		},
+		DisabledPlugins: []string{},
+		RequiredPlugins: []string{},
 	}
 }

vendor/github.com/containerd/containerd/cmd/containerd/command/config_unsupported.go

@@ -34,5 +34,7 @@ func defaultConfig() *srvconfig.Config {
 			Level:   "info",
 			Address: defaults.DefaultDebugAddress,
 		},
+		DisabledPlugins: []string{},
+		RequiredPlugins: []string{},
 	}
 }

vendor/github.com/containerd/containerd/cmd/containerd/command/config_windows.go

@@ -30,5 +30,7 @@ func defaultConfig() *srvconfig.Config {
 			MaxRecvMsgSize: defaults.DefaultMaxRecvMsgSize,
 			MaxSendMsgSize: defaults.DefaultMaxSendMsgSize,
 		},
+		DisabledPlugins: []string{},
+		RequiredPlugins: []string{},
 	}
 }

vendor/github.com/containerd/containerd/cmd/containerd/command/main.go

@@ -147,7 +147,10 @@ func App() *cli.App {
 		for _, w := range warnings {
 			log.G(ctx).WithError(w).Warn("cleanup temp mount")
 		}
-		address := config.GRPC.Address
+		var (
+			address      = config.GRPC.Address
+			ttrpcAddress = fmt.Sprintf("%s.ttrpc", config.GRPC.Address)
+		)
 		if address == "" {
 			return errors.New("grpc address cannot be empty")
 		}
@@ -188,7 +191,21 @@ func App() *cli.App {
 			}
 			serve(ctx, l, server.ServeMetrics)
 		}
+		// setup the ttrpc endpoint
+		tl, err := sys.GetLocalListener(ttrpcAddress, config.GRPC.UID, config.GRPC.GID)
+		if err != nil {
+			return errors.Wrapf(err, "failed to get listener for main ttrpc endpoint")
+		}
+		serve(ctx, tl, server.ServeTTRPC)
 
+		if config.GRPC.TCPAddress != "" {
+			l, err := net.Listen("tcp", config.GRPC.TCPAddress)
+			if err != nil {
+				return errors.Wrapf(err, "failed to get listener for TCP grpc endpoint")
+			}
+			serve(ctx, l, server.ServeTCP)
+		}
+		// setup the main grpc endpoint
 		l, err := sys.GetLocalListener(address, config.GRPC.UID, config.GRPC.GID)
 		if err != nil {
 			return errors.Wrapf(err, "failed to get listener for main endpoint")

vendor/github.com/containerd/containerd/content/local/store.go

@@ -33,6 +33,7 @@ import (
 	"github.com/containerd/containerd/errdefs"
 	"github.com/containerd/containerd/filters"
 	"github.com/containerd/containerd/log"
+	"github.com/sirupsen/logrus"
 
 	"github.com/containerd/continuity"
 	digest "github.com/opencontainers/go-digest"
@@ -477,6 +478,35 @@ func (s *store) Writer(ctx context.Context, opts ...content.WriterOpt) (content.
 	return w, nil // lock is now held by w.
 }
 
+func (s *store) resumeStatus(ref string, total int64, digester digest.Digester) (content.Status, error) {
+	path, _, data := s.ingestPaths(ref)
+	status, err := s.status(path)
+	if err != nil {
+		return status, errors.Wrap(err, "failed reading status of resume write")
+	}
+	if ref != status.Ref {
+		// NOTE(stevvooe): This is fairly catastrophic. Either we have some
+		// layout corruption or a hash collision for the ref key.
+		return status, errors.Wrapf(err, "ref key does not match: %v != %v", ref, status.Ref)
+	}
+
+	if total > 0 && status.Total > 0 && total != status.Total {
+		return status, errors.Errorf("provided total differs from status: %v != %v", total, status.Total)
+	}
+
+	// TODO(stevvooe): slow slow slow!!, send to goroutine or use resumable hashes
+	fp, err := os.Open(data)
+	if err != nil {
+		return status, err
+	}
+
+	p := bufPool.Get().(*[]byte)
+	status.Offset, err = io.CopyBuffer(digester.Hash(), fp, *p)
+	bufPool.Put(p)
+	fp.Close()
+	return status, err
+}
+
 // writer provides the main implementation of the Writer method. The caller
 // must hold the lock correctly and release on error if there is a problem.
 func (s *store) writer(ctx context.Context, ref string, total int64, expected digest.Digest) (content.Writer, error) {
@@ -498,45 +528,25 @@ func (s *store) writer(ctx context.Context, ref string, total int64, expected di
 		updatedAt time.Time
 	)
 
+	foundValidIngest := false
 	// ensure that the ingest path has been created.
 	if err := os.Mkdir(path, 0755); err != nil {
 		if !os.IsExist(err) {
 			return nil, err
 		}
-
-		status, err := s.status(path)
-		if err != nil {
-			return nil, errors.Wrap(err, "failed reading status of resume write")
+		status, err := s.resumeStatus(ref, total, digester)
+		if err == nil {
+			foundValidIngest = true
+			updatedAt = status.UpdatedAt
+			startedAt = status.StartedAt
+			total = status.Total
+			offset = status.Offset
+		} else {
+			logrus.Infof("failed to resume the status from path %s: %s. will recreate them", path, err.Error())
 		}
+	}
 
-		if ref != status.Ref {
-			// NOTE(stevvooe): This is fairly catastrophic. Either we have some
-			// layout corruption or a hash collision for the ref key.
-			return nil, errors.Wrapf(err, "ref key does not match: %v != %v", ref, status.Ref)
-		}
-
-		if total > 0 && status.Total > 0 && total != status.Total {
-			return nil, errors.Errorf("provided total differs from status: %v != %v", total, status.Total)
-		}
-
-		// TODO(stevvooe): slow slow slow!!, send to goroutine or use resumable hashes
-		fp, err := os.Open(data)
-		if err != nil {
-			return nil, err
-		}
-
-		p := bufPool.Get().(*[]byte)
-		offset, err = io.CopyBuffer(digester.Hash(), fp, *p)
-		bufPool.Put(p)
-		fp.Close()
-		if err != nil {
-			return nil, err
-		}
-
-		updatedAt = status.UpdatedAt
-		startedAt = status.StartedAt
-		total = status.Total
-	} else {
+	if !foundValidIngest {
 		startedAt = time.Now()
 		updatedAt = startedAt
 
@@ -546,11 +556,11 @@ func (s *store) writer(ctx context.Context, ref string, total int64, expected di
 			return nil, err
 		}
 
-		if writeTimestampFile(filepath.Join(path, "startedat"), startedAt); err != nil {
+		if err := writeTimestampFile(filepath.Join(path, "startedat"), startedAt); err != nil {
 			return nil, err
 		}
 
-		if writeTimestampFile(filepath.Join(path, "updatedat"), startedAt); err != nil {
+		if err := writeTimestampFile(filepath.Join(path, "updatedat"), startedAt); err != nil {
 			return nil, err
 		}
 

vendor/github.com/containerd/containerd/plugin/plugin.go

@@ -20,6 +20,7 @@ import (
 	"fmt"
 	"sync"
 
+	"github.com/containerd/ttrpc"
 	"github.com/pkg/errors"
 	"google.golang.org/grpc"
 )
@@ -123,6 +124,16 @@ type Service interface {
 	Register(*grpc.Server) error
 }
 
+// TTRPCService allows TTRPC services to be registered with the underlying server
+type TTRPCService interface {
+	RegisterTTRPC(*ttrpc.Server) error
+}
+
+// TCPService allows GRPC services to be registered with the underlying tcp server
+type TCPService interface {
+	RegisterTCP(*grpc.Server) error
+}
+
 var register = struct {
 	sync.RWMutex
 	r []*Registration

vendor/github.com/containerd/containerd/runtime/v2/shim/dialer.go

@@ -0,0 +1,87 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package shim
+
+import (
+	"net"
+	"sync"
+
+	v1 "github.com/containerd/containerd/api/services/ttrpc/events/v1"
+	"github.com/containerd/ttrpc"
+	"github.com/pkg/errors"
+)
+
+type dialConnect func() (net.Conn, error)
+
+var errDialerClosed = errors.New("events dialer is closed")
+
+func newDialier(newFn dialConnect) *dialer {
+	return &dialer{
+		newFn: newFn,
+	}
+}
+
+type dialer struct {
+	mu sync.Mutex
+
+	newFn   dialConnect
+	service v1.EventsService
+	conn    net.Conn
+	closed  bool
+}
+
+func (d *dialer) Get() (v1.EventsService, error) {
+	d.mu.Lock()
+	defer d.mu.Unlock()
+
+	if d.closed {
+		return nil, errDialerClosed
+	}
+	if d.service == nil {
+		conn, err := d.newFn()
+		if err != nil {
+			return nil, err
+		}
+		d.conn = conn
+		d.service = v1.NewEventsClient(ttrpc.NewClient(conn))
+	}
+	return d.service, nil
+}
+
+func (d *dialer) Put(err error) {
+	if err != nil {
+		d.mu.Lock()
+		d.conn.Close()
+		d.service = nil
+		d.mu.Unlock()
+	}
+}
+
+func (d *dialer) Close() (err error) {
+	d.mu.Lock()
+	if d.closed {
+		return errDialerClosed
+	}
+	if d.conn != nil {
+		err = d.conn.Close()
+	}
+	d.service = nil
+	d.closed = true
+	d.mu.Unlock()
+
+	return err
+}

vendor/github.com/containerd/containerd/runtime/v2/shim/publisher.go

@@ -0,0 +1,145 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package shim
+
+import (
+	"context"
+	"net"
+	"sync"
+	"time"
+
+	v1 "github.com/containerd/containerd/api/services/ttrpc/events/v1"
+	"github.com/containerd/containerd/events"
+	"github.com/containerd/containerd/namespaces"
+	"github.com/containerd/typeurl"
+	"github.com/sirupsen/logrus"
+)
+
+const (
+	queueSize  = 2048
+	maxRequeue = 5
+)
+
+type item struct {
+	ev    *v1.Envelope
+	ctx   context.Context
+	count int
+}
+
+func newPublisher(address string) *remoteEventsPublisher {
+	l := &remoteEventsPublisher{
+		dialer: newDialier(func() (net.Conn, error) {
+			return connect(address, dial)
+		}),
+		closed:  make(chan struct{}),
+		requeue: make(chan *item, queueSize),
+	}
+	go l.processQueue()
+	return l
+}
+
+type remoteEventsPublisher struct {
+	dialer  *dialer
+	closed  chan struct{}
+	closer  sync.Once
+	requeue chan *item
+}
+
+func (l *remoteEventsPublisher) Done() <-chan struct{} {
+	return l.closed
+}
+
+func (l *remoteEventsPublisher) Close() (err error) {
+	err = l.dialer.Close()
+	l.closer.Do(func() {
+		close(l.closed)
+	})
+	return err
+}
+
+func (l *remoteEventsPublisher) processQueue() {
+	for i := range l.requeue {
+		if i.count > maxRequeue {
+			logrus.Errorf("evicting %s from queue because of retry count", i.ev.Topic)
+			// drop the event
+			continue
+		}
+
+		client, err := l.dialer.Get()
+		if err != nil {
+			l.dialer.Put(err)
+
+			l.queue(i)
+			logrus.WithError(err).Error("get events client")
+			continue
+		}
+		if _, err := client.Forward(i.ctx, &v1.ForwardRequest{
+			Envelope: i.ev,
+		}); err != nil {
+			l.dialer.Put(err)
+			logrus.WithError(err).Error("forward event")
+			l.queue(i)
+		}
+	}
+}
+
+func (l *remoteEventsPublisher) queue(i *item) {
+	go func() {
+		i.count++
+		// re-queue after a short delay
+		time.Sleep(time.Duration(1*i.count) * time.Second)
+		l.requeue <- i
+	}()
+}
+
+func (l *remoteEventsPublisher) Publish(ctx context.Context, topic string, event events.Event) error {
+	ns, err := namespaces.NamespaceRequired(ctx)
+	if err != nil {
+		return err
+	}
+	any, err := typeurl.MarshalAny(event)
+	if err != nil {
+		return err
+	}
+	i := &item{
+		ev: &v1.Envelope{
+			Timestamp: time.Now(),
+			Namespace: ns,
+			Topic:     topic,
+			Event:     any,
+		},
+		ctx: ctx,
+	}
+	client, err := l.dialer.Get()
+	if err != nil {
+		l.dialer.Put(err)
+		l.queue(i)
+		return err
+	}
+	if _, err := client.Forward(i.ctx, &v1.ForwardRequest{
+		Envelope: i.ev,
+	}); err != nil {
+		l.dialer.Put(err)
+		l.queue(i)
+		return err
+	}
+	return nil
+}
+
+func connect(address string, d func(string, time.Duration) (net.Conn, error)) (net.Conn, error) {
+	return d(address, 5*time.Second)
+}

vendor/github.com/containerd/containerd/runtime/v2/shim/shim.go

@@ -20,6 +20,7 @@ import (
 	"context"
 	"flag"
 	"fmt"
+	"io"
 	"os"
 	"runtime"
 	"runtime/debug"
@@ -43,8 +44,14 @@ type Client struct {
 	signals chan os.Signal
 }
 
+// Publisher for events
+type Publisher interface {
+	events.Publisher
+	io.Closer
+}
+
 // Init func for the creation of a shim server
-type Init func(context.Context, string, events.Publisher) (Shim, error)
+type Init func(context.Context, string, Publisher, func()) (Shim, error)
 
 // Shim server interface
 type Shim interface {
@@ -153,19 +160,20 @@ func run(id string, initFunc Init, config Config) error {
 			return err
 		}
 	}
-	publisher := &remoteEventsPublisher{
-		address:              addressFlag,
-		containerdBinaryPath: containerdBinaryFlag,
-		noReaper:             config.NoReaper,
-	}
+	address := fmt.Sprintf("%s.ttrpc", addressFlag)
+
+	publisher := newPublisher(address)
+	defer publisher.Close()
+
 	if namespaceFlag == "" {
 		return fmt.Errorf("shim namespace cannot be empty")
 	}
 	ctx := namespaces.WithNamespace(context.Background(), namespaceFlag)
 	ctx = context.WithValue(ctx, OptsKey{}, Opts{BundlePath: bundlePath, Debug: debugFlag})
 	ctx = log.WithLogger(ctx, log.G(ctx).WithField("runtime", id))
+	ctx, cancel := context.WithCancel(ctx)
 
-	service, err := initFunc(ctx, idFlag, publisher)
+	service, err := initFunc(ctx, idFlag, publisher, cancel)
 	if err != nil {
 		return err
 	}
@@ -175,7 +183,7 @@ func run(id string, initFunc Init, config Config) error {
 			"pid":       os.Getpid(),
 			"namespace": namespaceFlag,
 		})
-		go handleSignals(logger, signals)
+		go handleSignals(ctx, logger, signals)
 		response, err := service.Cleanup(ctx)
 		if err != nil {
 			return err
@@ -202,7 +210,17 @@ func run(id string, initFunc Init, config Config) error {
 			return err
 		}
 		client := NewShimClient(ctx, service, signals)
-		return client.Serve()
+		if err := client.Serve(); err != nil {
+			if err != context.Canceled {
+				return err
+			}
+		}
+		select {
+		case <-publisher.Done():
+			return nil
+		case <-time.After(5 * time.Second):
+			return errors.New("publisher not closed")
+		}
 	}
 }
 
@@ -246,7 +264,7 @@ func (s *Client) Serve() error {
 			dumpStacks(logger)
 		}
 	}()
-	return handleSignals(logger, s.signals)
+	return handleSignals(s.context, logger, s.signals)
 }
 
 // serve serves the ttrpc API over a unix socket at the provided path
@@ -280,9 +298,3 @@ func dumpStacks(logger *logrus.Entry) {
 	buf = buf[:stackSize]
 	logger.Infof("=== BEGIN goroutine stack dump ===\n%s\n=== END goroutine stack dump ===", buf)
 }
-
-type remoteEventsPublisher struct {
-	address              string
-	containerdBinaryPath string
-	noReaper             bool
-}

vendor/github.com/containerd/containerd/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) {
@@ -81,11 +71,14 @@ func serveListener(path string) (net.Listener, error) {
 	return l, nil
 }
 
-func handleSignals(logger *logrus.Entry, signals chan os.Signal) error {
+func handleSignals(ctx context.Context, logger *logrus.Entry, signals chan os.Signal) error {
 	logger.Info("starting signal loop")
 
 	for {
-		for s := range signals {
+		select {
+		case <-ctx.Done():
+			return ctx.Err()
+		case s := <-signals:
 			switch s {
 			case unix.SIGCHLD:
 				if err := Reap(); err != nil {
@@ -101,41 +94,7 @@ 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 {
-	ns, _ := namespaces.Namespace(ctx)
-	encoded, err := typeurl.MarshalAny(event)
-	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
+func dial(address string, timeout time.Duration) (net.Conn, error) {
+	address = strings.TrimPrefix(address, "unix://")
+	return net.DialTimeout("unix", address, timeout)
 }

vendor/github.com/containerd/containerd/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"
@@ -106,11 +104,14 @@ func serveListener(path string) (net.Listener, error) {
 	return l, nil
 }
 
-func handleSignals(logger *logrus.Entry, signals chan os.Signal) error {
+func handleSignals(ctx context.Context, logger *logrus.Entry, signals chan os.Signal) error {
 	logger.Info("starting signal loop")
 
 	for {
-		for s := range signals {
+		select {
+		case <-ctx.Done():
+			return ctx.Err()
+		case s := <-signals:
 			switch s {
 			case os.Interrupt:
 				return nil
@@ -286,17 +287,34 @@ 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 {
-	ns, _ := namespaces.Namespace(ctx)
-	encoded, err := typeurl.MarshalAny(event)
-	if err != nil {
-		return err
+func dial(address string, timeout time.Duration) (net.Conn, error) {
+	var c net.Conn
+	var lastError error
+	timedOutError := errors.Errorf("timed out waiting for npipe %s", address)
+	start := time.Now()
+	for {
+		remaining := timeout - time.Since(start)
+		if remaining <= 0 {
+			lastError = timedOutError
+			break
+		}
+		c, lastError = winio.DialPipe(address, &remaining)
+		if lastError == nil {
+			break
+		}
+		if !os.IsNotExist(lastError) {
+			break
+		}
+		// 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)
 	}
-	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)
-	return cmd.Run()
+	return c, lastError
 }

vendor/github.com/containerd/containerd/services/events/service.go

@@ -20,10 +20,12 @@ import (
 	"context"
 
 	api "github.com/containerd/containerd/api/services/events/v1"
+	apittrpc "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"
 	"github.com/containerd/containerd/plugin"
+	"github.com/containerd/ttrpc"
 	ptypes "github.com/gogo/protobuf/types"
 	"github.com/pkg/errors"
 	"google.golang.org/grpc"
@@ -40,12 +42,18 @@ func init() {
 }
 
 type service struct {
-	events *exchange.Exchange
+	ttService *ttrpcService
+	events    *exchange.Exchange
 }
 
 // NewService returns the GRPC events server
 func NewService(events *exchange.Exchange) api.EventsServer {
-	return &service{events: events}
+	return &service{
+		ttService: &ttrpcService{
+			events: events,
+		},
+		events: events,
+	}
 }
 
 func (s *service) Register(server *grpc.Server) error {
@@ -53,6 +61,11 @@ func (s *service) Register(server *grpc.Server) error {
 	return nil
 }
 
+func (s *service) RegisterTTRPC(server *ttrpc.Server) error {
+	apittrpc.RegisterEventsService(server, s.ttService)
+	return nil
+}
+
 func (s *service) Publish(ctx context.Context, r *api.PublishRequest) (*ptypes.Empty, error) {
 	if err := s.events.Publish(ctx, r.Topic, r.Event); err != nil {
 		return nil, errdefs.ToGRPC(err)

vendor/github.com/containerd/containerd/services/events/ttrpc.go

@@ -0,0 +1,48 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package events
+
+import (
+	"context"
+
+	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"
+)
+
+type ttrpcService struct {
+	events *exchange.Exchange
+}
+
+func (s *ttrpcService) Forward(ctx context.Context, r *api.ForwardRequest) (*ptypes.Empty, error) {
+	if err := s.events.Forward(ctx, fromTProto(r.Envelope)); err != nil {
+		return nil, errdefs.ToGRPC(err)
+	}
+
+	return &ptypes.Empty{}, nil
+}
+
+func fromTProto(env *api.Envelope) *events.Envelope {
+	return &events.Envelope{
+		Timestamp: env.Timestamp,
+		Namespace: env.Namespace,
+		Topic:     env.Topic,
+		Event:     env.Event,
+	}
+}

vendor/github.com/containerd/containerd/services/server/config/config.go

@@ -39,6 +39,9 @@ type Config struct {
 	// DisabledPlugins are IDs of plugins to disable. Disabled plugins won't be
 	// initialized and started.
 	DisabledPlugins []string `toml:"disabled_plugins"`
+	// RequiredPlugins are IDs of required plugins. Containerd exits if any
+	// required plugin doesn't exist or fails to be initialized or started.
+	RequiredPlugins []string `toml:"required_plugins"`
 	// Plugins provides plugin specific configuration for the initialization of a plugin
 	Plugins map[string]toml.Primitive `toml:"plugins"`
 	// OOMScore adjust the containerd's oom score
@@ -54,6 +57,9 @@ type Config struct {
 // GRPCConfig provides GRPC configuration for the socket
 type GRPCConfig struct {
 	Address        string `toml:"address"`
+	TCPAddress     string `toml:"tcp_address"`
+	TCPTLSCert     string `toml:"tcp_tls_cert"`
+	TCPTLSKey      string `toml:"tcp_tls_key"`
 	UID            int    `toml:"uid"`
 	GID            int    `toml:"gid"`
 	MaxRecvMsgSize int    `toml:"max_recv_message_size"`

vendor/github.com/containerd/containerd/services/server/server.go

@@ -44,11 +44,13 @@ import (
 	"github.com/containerd/containerd/snapshots"
 	ssproxy "github.com/containerd/containerd/snapshots/proxy"
 	"github.com/containerd/containerd/sys"
+	"github.com/containerd/ttrpc"
 	metrics "github.com/docker/go-metrics"
 	grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
 	"github.com/pkg/errors"
 	bolt "go.etcd.io/bbolt"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
 )
 
 // CreateTopLevelDirectories creates the top-level root and state directories.
@@ -80,7 +82,6 @@ func New(ctx context.Context, config *srvconfig.Config) (*Server, error) {
 	if err != nil {
 		return nil, err
 	}
-
 	serverOpts := []grpc.ServerOption{
 		grpc.UnaryInterceptor(grpc_prometheus.UnaryServerInterceptor),
 		grpc.StreamInterceptor(grpc_prometheus.StreamServerInterceptor),
@@ -91,16 +92,40 @@ func New(ctx context.Context, config *srvconfig.Config) (*Server, error) {
 	if config.GRPC.MaxSendMsgSize > 0 {
 		serverOpts = append(serverOpts, grpc.MaxSendMsgSize(config.GRPC.MaxSendMsgSize))
 	}
-	rpc := grpc.NewServer(serverOpts...)
+	ttrpcServer, err := newTTRPCServer()
+	if err != nil {
+		return nil, err
+	}
+	tcpServerOpts := serverOpts
+	if config.GRPC.TCPTLSCert != "" {
+		log.G(ctx).Info("setting up tls on tcp GRPC services...")
+		creds, err := credentials.NewServerTLSFromFile(config.GRPC.TCPTLSCert, config.GRPC.TCPTLSKey)
+		if err != nil {
+			return nil, err
+		}
+		tcpServerOpts = append(tcpServerOpts, grpc.Creds(creds))
+	}
 	var (
-		services []plugin.Service
-		s        = &Server{
-			rpc:    rpc,
-			events: exchange.NewExchange(),
-			config: config,
+		grpcServer = grpc.NewServer(serverOpts...)
+		tcpServer  = grpc.NewServer(tcpServerOpts...)
+
+		grpcServices  []plugin.Service
+		tcpServices   []plugin.TCPService
+		ttrpcServices []plugin.TTRPCService
+
+		s = &Server{
+			grpcServer:  grpcServer,
+			tcpServer:   tcpServer,
+			ttrpcServer: ttrpcServer,
+			events:      exchange.NewExchange(),
+			config:      config,
 		}
 		initialized = plugin.NewPluginSet()
+		required    = make(map[string]struct{})
 	)
+	for _, r := range config.RequiredPlugins {
+		required[r] = struct{}{}
+	}
 	for _, p := range plugins {
 		id := p.URI()
 		log.G(ctx).WithField("type", p.Type).Infof("loading plugin %q...", id)
@@ -135,17 +160,46 @@ func New(ctx context.Context, config *srvconfig.Config) (*Server, error) {
 			} else {
 				log.G(ctx).WithError(err).Warnf("failed to load plugin %s", id)
 			}
+			if _, ok := required[p.ID]; ok {
+				return nil, errors.Wrapf(err, "load required plugin %s", id)
+			}
 			continue
 		}
+		delete(required, p.ID)
 		// check for grpc services that should be registered with the server
-		if service, ok := instance.(plugin.Service); ok {
-			services = append(services, service)
+		if src, ok := instance.(plugin.Service); ok {
+			grpcServices = append(grpcServices, src)
 		}
+		if src, ok := instance.(plugin.TTRPCService); ok {
+			ttrpcServices = append(ttrpcServices, src)
+		}
+		if service, ok := instance.(plugin.TCPService); ok {
+			tcpServices = append(tcpServices, service)
+		}
+
 		s.plugins = append(s.plugins, result)
 	}
+	if len(required) != 0 {
+		var missing []string
+		for id := range required {
+			missing = append(missing, id)
+		}
+		return nil, errors.Errorf("required plugin %s not included", missing)
+	}
+
 	// register services after all plugins have been initialized
-	for _, service := range services {
-		if err := service.Register(rpc); err != nil {
+	for _, service := range grpcServices {
+		if err := service.Register(grpcServer); err != nil {
+			return nil, err
+		}
+	}
+	for _, service := range ttrpcServices {
+		if err := service.RegisterTTRPC(ttrpcServer); err != nil {
+			return nil, err
+		}
+	}
+	for _, service := range tcpServices {
+		if err := service.RegisterTCP(tcpServer); err != nil {
 			return nil, err
 		}
 	}
@@ -154,10 +208,12 @@ func New(ctx context.Context, config *srvconfig.Config) (*Server, error) {
 
 // Server is the containerd main daemon
 type Server struct {
-	rpc     *grpc.Server
-	events  *exchange.Exchange
-	config  *srvconfig.Config
-	plugins []*plugin.Plugin
+	grpcServer  *grpc.Server
+	ttrpcServer *ttrpc.Server
+	tcpServer   *grpc.Server
+	events      *exchange.Exchange
+	config      *srvconfig.Config
+	plugins     []*plugin.Plugin
 }
 
 // ServeGRPC provides the containerd grpc APIs on the provided listener
@@ -169,8 +225,13 @@ func (s *Server) ServeGRPC(l net.Listener) error {
 	// before we start serving the grpc API register the grpc_prometheus metrics
 	// handler.  This needs to be the last service registered so that it can collect
 	// metrics for every other service
-	grpc_prometheus.Register(s.rpc)
-	return trapClosedConnErr(s.rpc.Serve(l))
+	grpc_prometheus.Register(s.grpcServer)
+	return trapClosedConnErr(s.grpcServer.Serve(l))
+}
+
+// ServeTTRPC provides the containerd ttrpc APIs on the provided listener
+func (s *Server) ServeTTRPC(l net.Listener) error {
+	return trapClosedConnErr(s.ttrpcServer.Serve(context.Background(), l))
 }
 
 // ServeMetrics provides a prometheus endpoint for exposing metrics
@@ -180,6 +241,12 @@ func (s *Server) ServeMetrics(l net.Listener) error {
 	return trapClosedConnErr(http.Serve(l, m))
 }
 
+// ServeTCP allows services to serve over tcp
+func (s *Server) ServeTCP(l net.Listener) error {
+	grpc_prometheus.Register(s.tcpServer)
+	return trapClosedConnErr(s.tcpServer.Serve(l))
+}
+
 // ServeDebug provides a debug endpoint
 func (s *Server) ServeDebug(l net.Listener) error {
 	// don't use the default http server mux to make sure nothing gets registered
@@ -196,7 +263,7 @@ func (s *Server) ServeDebug(l net.Listener) error {
 
 // Stop the containerd server canceling any open connections
 func (s *Server) Stop() {
-	s.rpc.Stop()
+	s.grpcServer.Stop()
 	for i := len(s.plugins) - 1; i >= 0; i-- {
 		p := s.plugins[i]
 		instance, err := p.Instance()

vendor/github.com/containerd/containerd/services/server/server_linux.go

@@ -24,6 +24,7 @@ import (
 	"github.com/containerd/containerd/log"
 	srvconfig "github.com/containerd/containerd/services/server/config"
 	"github.com/containerd/containerd/sys"
+	"github.com/containerd/ttrpc"
 	specs "github.com/opencontainers/runtime-spec/specs-go"
 )
 
@@ -53,3 +54,7 @@ func apply(ctx context.Context, config *srvconfig.Config) error {
 	}
 	return nil
 }
+
+func newTTRPCServer() (*ttrpc.Server, error) {
+	return ttrpc.NewServer(ttrpc.WithServerHandshaker(ttrpc.UnixSocketRequireSameUser()))
+}

vendor/github.com/containerd/containerd/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()
+}

vendor/github.com/containerd/containerd/services/server/server_windows.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()
+}

vendor/github.com/containerd/containerd/sys/oom_unix.go

@@ -20,8 +20,10 @@ package sys
 
 import (
 	"fmt"
+	"io/ioutil"
 	"os"
 	"strconv"
+	"strings"
 
 	"github.com/opencontainers/runc/libcontainer/system"
 )
@@ -45,3 +47,13 @@ func SetOOMScore(pid, score int) error {
 	}
 	return nil
 }
+
+// GetOOMScoreAdj gets the oom score for a process
+func GetOOMScoreAdj(pid int) (int, error) {
+	path := fmt.Sprintf("/proc/%d/oom_score_adj", pid)
+	data, err := ioutil.ReadFile(path)
+	if err != nil {
+		return 0, err
+	}
+	return strconv.Atoi(strings.TrimSpace(string(data)))
+}

vendor/github.com/containerd/containerd/sys/oom_windows.go

@@ -22,3 +22,10 @@ package sys
 func SetOOMScore(pid, score int) error {
 	return nil
 }
+
+// GetOOMScoreAdj gets the oom score for a process
+//
+// Not implemented on Windows
+func GetOOMScoreAdj(pid int) (int, error) {
+	return 0, nil
+}

vendor/github.com/containerd/containerd/vendor.conf

@@ -3,7 +3,7 @@ github.com/containerd/console c12b1e7919c14469339a5d38f2f8ed9b64a9de23
 github.com/containerd/cgroups 4994991857f9b0ae8dc439551e8bebdbb4bf66c1
 github.com/containerd/typeurl a93fcdb778cd272c6e9b3028b2f42d813e785d40
 github.com/containerd/fifo 3d5202aec260678c48179c56f40e6f38a095738c
-github.com/containerd/btrfs 2e1aa0ddf94f91fa282b6ed87c23bf0d64911244
+github.com/containerd/btrfs af5082808c833de0e79c1e72eea9fea239364877
 github.com/containerd/continuity bd77b46c8352f74eb12c85bdc01f4b90f69d66b4
 github.com/coreos/go-systemd 48702e0da86bd25e76cfef347e2adeb434a0d0a6
 github.com/docker/go-metrics 4ea375f7759c82740c893fc030bc37088d2ec098
@@ -17,7 +17,7 @@ github.com/prometheus/procfs cb4147076ac75738c9a7d279075a253c0cc5acbd
 github.com/beorn7/perks 4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9
 github.com/matttproud/golang_protobuf_extensions v1.0.1
 github.com/gogo/protobuf v1.2.1
-github.com/gogo/googleapis 08a7655d27152912db7aaf4f983275eaf8d128ef
+github.com/gogo/googleapis v1.2.0
 github.com/golang/protobuf v1.2.0
 github.com/opencontainers/runtime-spec 29686dbc5559d93fb1ef402eeda3e35c38d75af4 # v1.0.1-59-g29686db
 github.com/opencontainers/runc 029124da7af7360afa781a0234d1b083550f797c
@@ -26,12 +26,12 @@ github.com/sirupsen/logrus v1.4.1
 github.com/urfave/cli 7bc6a0acffa589f415f88aca16cc1de5ffd66f9c
 golang.org/x/net b3756b4b77d7b13260a0a2ec658753cf48922eac
 google.golang.org/grpc v1.12.0
-github.com/pkg/errors v0.8.0
+github.com/pkg/errors v0.8.1
 github.com/opencontainers/go-digest c9281466c8b2f606084ac71339773efd177436e7
 golang.org/x/sys d455e41777fca6e8a5a79e34a14b8368bc11d9ba https://github.com/golang/sys
 github.com/opencontainers/image-spec v1.0.1
 golang.org/x/sync 42b317875d0fa942474b76e1b46a6060d720ae6e
-github.com/BurntSushi/toml a368813c5e648fee92e5f6c30e3944ff9d5e8895
+github.com/BurntSushi/toml v0.3.1
 github.com/grpc-ecosystem/go-grpc-prometheus 6b7015e65d366bf3f19b2b2a000a831940f0f7e0
 github.com/Microsoft/go-winio c599b533b43b1363d7d7c6cfda5ede70ed73ff13
 github.com/Microsoft/hcsshim 8abdbb8205e4192c68b5f84c31197156f31be517
@@ -39,8 +39,8 @@ google.golang.org/genproto d80a6e20e776b0b17a324d0ba1ab50a39c8e8944
 golang.org/x/text 19e51611da83d6be54ddafce4a4af510cb3e9ea4
 github.com/containerd/ttrpc f02858b1457c5ca3aaec3a0803eb0d59f96e41d6
 github.com/syndtr/gocapability db04d3cc01c8b54962a58ec7e491717d06cfcc16
-gotest.tools v2.1.0
-github.com/google/go-cmp v0.1.0
+gotest.tools v2.3.0
+github.com/google/go-cmp v0.2.0
 go.etcd.io/bbolt v1.3.2
 
 # cri dependencies
@@ -77,9 +77,10 @@ k8s.io/utils c2654d5206da6b7b6ace12841e8f359bb89b443c
 sigs.k8s.io/yaml v1.1.0
 
 # zfs dependencies
-github.com/containerd/zfs 9f6ef3b1fe5144bd91fe5855b4eba81bc0d17d03
-github.com/mistifyio/go-zfs 166add352731e515512690329794ee593f1aaff2
-github.com/pborman/uuid c65b2f87fee37d1c7854c9164a450713c28d50cd
+github.com/containerd/zfs 31af176f2ae84fe142ef2655bf7bb2aa618b3b1f
+github.com/mistifyio/go-zfs d5b163290a48f624cbf244ebe4e89ce38653064c
+github.com/pborman/uuid v1.2.0
+github.com/google/uuid v1.1.1
 
 # aufs dependencies
-github.com/containerd/aufs da3cf16bfbe68ba8f114f1536a05c01528a25434
+github.com/containerd/aufs f894a800659b6e11c1a13084abd1712f346e349c