Add kill API for execution service

Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>

api/services/execution/execution.pb.go

@@ -17,6 +17,7 @@
 		InfoRequest
 		ListRequest
 		ListResponse
+		KillRequest
 		EventsRequest
 */
 package execution
@@ -123,12 +124,22 @@ func (m *ListResponse) Reset()                    { *m = ListResponse{} }
 func (*ListResponse) ProtoMessage()               {}
 func (*ListResponse) Descriptor() ([]byte, []int) { return fileDescriptorExecution, []int{7} }
 
+type KillRequest struct {
+	ID     string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	Signal uint32 `protobuf:"varint,2,opt,name=signal,proto3" json:"signal,omitempty"`
+	All    bool   `protobuf:"varint,3,opt,name=all,proto3" json:"all,omitempty"`
+}
+
+func (m *KillRequest) Reset()                    { *m = KillRequest{} }
+func (*KillRequest) ProtoMessage()               {}
+func (*KillRequest) Descriptor() ([]byte, []int) { return fileDescriptorExecution, []int{8} }
+
 type EventsRequest struct {
 }
 
 func (m *EventsRequest) Reset()                    { *m = EventsRequest{} }
 func (*EventsRequest) ProtoMessage()               {}
-func (*EventsRequest) Descriptor() ([]byte, []int) { return fileDescriptorExecution, []int{8} }
+func (*EventsRequest) Descriptor() ([]byte, []int) { return fileDescriptorExecution, []int{9} }
 
 func init() {
 	proto.RegisterType((*CreateRequest)(nil), "containerd.v1.services.CreateRequest")
@@ -139,6 +150,7 @@ func init() {
 	proto.RegisterType((*InfoRequest)(nil), "containerd.v1.services.InfoRequest")
 	proto.RegisterType((*ListRequest)(nil), "containerd.v1.services.ListRequest")
 	proto.RegisterType((*ListResponse)(nil), "containerd.v1.services.ListResponse")
+	proto.RegisterType((*KillRequest)(nil), "containerd.v1.services.KillRequest")
 	proto.RegisterType((*EventsRequest)(nil), "containerd.v1.services.EventsRequest")
 }
 
@@ -158,6 +170,7 @@ type ContainerServiceClient interface {
 	Delete(ctx context.Context, in *DeleteRequest, opts ...grpc.CallOption) (*DeleteResponse, error)
 	Info(ctx context.Context, in *InfoRequest, opts ...grpc.CallOption) (*containerd_v1_types1.Container, error)
 	List(ctx context.Context, in *ListRequest, opts ...grpc.CallOption) (*ListResponse, error)
+	Kill(ctx context.Context, in *KillRequest, opts ...grpc.CallOption) (*google_protobuf.Empty, error)
 	Events(ctx context.Context, in *EventsRequest, opts ...grpc.CallOption) (ContainerService_EventsClient, error)
 }
 
@@ -214,6 +227,15 @@ func (c *containerServiceClient) List(ctx context.Context, in *ListRequest, opts
 	return out, nil
 }
 
+func (c *containerServiceClient) Kill(ctx context.Context, in *KillRequest, opts ...grpc.CallOption) (*google_protobuf.Empty, error) {
+	out := new(google_protobuf.Empty)
+	err := grpc.Invoke(ctx, "/containerd.v1.services.ContainerService/Kill", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *containerServiceClient) Events(ctx context.Context, in *EventsRequest, opts ...grpc.CallOption) (ContainerService_EventsClient, error) {
 	stream, err := grpc.NewClientStream(ctx, &_ContainerService_serviceDesc.Streams[0], c.cc, "/containerd.v1.services.ContainerService/Events", opts...)
 	if err != nil {
@@ -254,6 +276,7 @@ type ContainerServiceServer interface {
 	Delete(context.Context, *DeleteRequest) (*DeleteResponse, error)
 	Info(context.Context, *InfoRequest) (*containerd_v1_types1.Container, error)
 	List(context.Context, *ListRequest) (*ListResponse, error)
+	Kill(context.Context, *KillRequest) (*google_protobuf.Empty, error)
 	Events(*EventsRequest, ContainerService_EventsServer) error
 }
 
@@ -351,6 +374,24 @@ func _ContainerService_List_Handler(srv interface{}, ctx context.Context, dec fu
 	return interceptor(ctx, in, info, handler)
 }
 
+func _ContainerService_Kill_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(KillRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ContainerServiceServer).Kill(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/containerd.v1.services.ContainerService/Kill",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ContainerServiceServer).Kill(ctx, req.(*KillRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _ContainerService_Events_Handler(srv interface{}, stream grpc.ServerStream) error {
 	m := new(EventsRequest)
 	if err := stream.RecvMsg(m); err != nil {
@@ -396,6 +437,10 @@ var _ContainerService_serviceDesc = grpc.ServiceDesc{
 			MethodName: "List",
 			Handler:    _ContainerService_List_Handler,
 		},
+		{
+			MethodName: "Kill",
+			Handler:    _ContainerService_Kill_Handler,
+		},
 	},
 	Streams: []grpc.StreamDesc{
 		{
@@ -665,6 +710,45 @@ func (m *ListResponse) MarshalTo(dAtA []byte) (int, error) {
 	return i, nil
 }
 
+func (m *KillRequest) 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 *KillRequest) MarshalTo(dAtA []byte) (int, error) {
+	var i int
+	_ = i
+	var l int
+	_ = l
+	if len(m.ID) > 0 {
+		dAtA[i] = 0xa
+		i++
+		i = encodeVarintExecution(dAtA, i, uint64(len(m.ID)))
+		i += copy(dAtA[i:], m.ID)
+	}
+	if m.Signal != 0 {
+		dAtA[i] = 0x10
+		i++
+		i = encodeVarintExecution(dAtA, i, uint64(m.Signal))
+	}
+	if m.All {
+		dAtA[i] = 0x18
+		i++
+		if m.All {
+			dAtA[i] = 1
+		} else {
+			dAtA[i] = 0
+		}
+		i++
+	}
+	return i, nil
+}
+
 func (m *EventsRequest) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
@@ -823,6 +907,22 @@ func (m *ListResponse) Size() (n int) {
 	return n
 }
 
+func (m *KillRequest) Size() (n int) {
+	var l int
+	_ = l
+	l = len(m.ID)
+	if l > 0 {
+		n += 1 + l + sovExecution(uint64(l))
+	}
+	if m.Signal != 0 {
+		n += 1 + sovExecution(uint64(m.Signal))
+	}
+	if m.All {
+		n += 2
+	}
+	return n
+}
+
 func (m *EventsRequest) Size() (n int) {
 	var l int
 	_ = l
@@ -930,6 +1030,18 @@ func (this *ListResponse) String() string {
 	}, "")
 	return s
 }
+func (this *KillRequest) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&KillRequest{`,
+		`ID:` + fmt.Sprintf("%v", this.ID) + `,`,
+		`Signal:` + fmt.Sprintf("%v", this.Signal) + `,`,
+		`All:` + fmt.Sprintf("%v", this.All) + `,`,
+		`}`,
+	}, "")
+	return s
+}
 func (this *EventsRequest) String() string {
 	if this == nil {
 		return "nil"
@@ -1790,6 +1902,124 @@ func (m *ListResponse) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *KillRequest) 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 ErrIntOverflowExecution
+			}
+			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: KillRequest: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: KillRequest: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ID", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowExecution
+				}
+				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 ErrInvalidLengthExecution
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.ID = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Signal", wireType)
+			}
+			m.Signal = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowExecution
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Signal |= (uint32(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 3:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field All", wireType)
+			}
+			var v int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowExecution
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				v |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			m.All = bool(v != 0)
+		default:
+			iNdEx = preIndex
+			skippy, err := skipExecution(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthExecution
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
 func (m *EventsRequest) Unmarshal(dAtA []byte) error {
 	l := len(dAtA)
 	iNdEx := 0
@@ -1950,42 +2180,45 @@ func init() {
 }
 
 var fileDescriptorExecution = []byte{
-	// 586 bytes of a gzipped FileDescriptorProto
+	// 629 bytes of a gzipped FileDescriptorProto
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-	0xcf, 0x8b, 0x68, 0xa9, 0xfc, 0x1e, 0xec, 0xab, 0x80, 0xd0, 0x69, 0xde, 0xc0, 0x66, 0x7e, 0x66,
+	0x73, 0x78, 0x41, 0x98, 0x92, 0xf9, 0x91, 0x83, 0x6f, 0x2d, 0xd8, 0x98, 0xf5, 0x3e, 0xcd, 0xee,
-	0xf3, 0x8f, 0xff, 0xba, 0x17, 0x5f, 0xf1, 0x58, 0x5f, 0x12, 0x4b, 0xbe, 0xbe, 0xad, 0x7c, 0xf3,
+	0x2a, 0xfa, 0x00, 0x76, 0x46, 0x2a, 0xda, 0xf1, 0x17, 0xdf, 0x66, 0x7f, 0x4e, 0xf7, 0xce, 0x6e,
-	0xf5, 0xdd, 0x49, 0xf7, 0x0d, 0x54, 0xe2, 0x90, 0xd0, 0xa3, 0x3c, 0xfe, 0x46, 0x84, 0x66, 0x81,
+	0x5d, 0x5a, 0x8e, 0xc7, 0x21, 0x2c, 0x1b, 0xc6, 0xd1, 0x76, 0x55, 0x41, 0x59, 0x10, 0x4e, 0xf7,
-	0xef, 0xe8, 0x3d, 0x54, 0xe2, 0xec, 0xf2, 0x3f, 0xb6, 0x11, 0xb4, 0x79, 0xfa, 0x77, 0x52, 0xaa,
+	0x8f, 0x8b, 0x72, 0xa8, 0xdf, 0x0c, 0x3d, 0x5f, 0xc6, 0x73, 0xf5, 0x7c, 0x73, 0x82, 0xa9, 0x9e,
-	0xef, 0x0a, 0xf4, 0x24, 0xbe, 0xfc, 0xc5, 0xb7, 0xe2, 0x35, 0x77, 0xdf, 0x76, 0xc5, 0x79, 0xa2,
+	0xef, 0x8e, 0x5c, 0x8e, 0xa1, 0xa5, 0x59, 0x47, 0x8f, 0xaa, 0xf2, 0x4b, 0x9a, 0x70, 0x6a, 0x88,
-	0x5d, 0x18, 0x37, 0xb7, 0xd6, 0xde, 0xf7, 0x5b, 0x6b, 0xef, 0xcb, 0xd2, 0xd2, 0x6e, 0x96, 0x96,
+	0x44, 0xef, 0xa1, 0xa5, 0xc5, 0x50, 0x7d, 0x58, 0x49, 0x39, 0xce, 0xf6, 0xdf, 0x93, 0xf2, 0xf9,
-	0xf6, 0x6d, 0x69, 0x69, 0x3f, 0x97, 0x96, 0x36, 0xd4, 0x95, 0xe3, 0xcf, 0x7e, 0x07, 0x00, 0x00,
+	0xf6, 0xa1, 0xa5, 0xf5, 0x50, 0x7d, 0x64, 0x49, 0x2d, 0x95, 0xe8, 0x9d, 0x80, 0x9d, 0x69, 0xa0,
-	0xff, 0xff, 0x8d, 0x48, 0xca, 0x8b, 0xc5, 0x05, 0x00, 0x00,
+	0x1a, 0xbd, 0x39, 0x8d, 0x38, 0x8b, 0xdf, 0x20, 0x93, 0xf3, 0xc4, 0xda, 0xc3, 0xd7, 0x37, 0xee,
+	0xd2, 0x8f, 0x1b, 0x77, 0xe9, 0xcb, 0xd4, 0xb5, 0xae, 0xa7, 0xae, 0xf5, 0x7d, 0xea, 0x5a, 0xbf,
+	0xa6, 0xae, 0x75, 0x66, 0x9b, 0xc6, 0xcf, 0x7e, 0x07, 0x00, 0x00, 0xff, 0xff, 0xd5, 0xe9, 0x01,
+	0xd2, 0x5b, 0x06, 0x00, 0x00,
 }

api/services/execution/execution.proto

@@ -14,6 +14,7 @@ service ContainerService {
 	rpc Delete(DeleteRequest) returns (DeleteResponse);
 	rpc Info(InfoRequest) returns (containerd.v1.types.Container);
 	rpc List(ListRequest) returns (ListResponse);
+	rpc Kill(KillRequest) returns (google.protobuf.Empty);
 	rpc Events(EventsRequest) returns (stream containerd.v1.types.Event);
 }
 
@@ -57,5 +58,11 @@ message ListResponse {
 	repeated containerd.v1.types.Container containers = 1;
 }
 
+message KillRequest {
+	string id = 1 [(gogoproto.customname) = "ID"];
+	uint32 signal = 2;
+	bool all = 3;
+}
+
 message EventsRequest {
 }

container.go

@@ -14,6 +14,8 @@ type Container interface {
 	Start(context.Context) error
 	// State returns the container's state
 	State(context.Context) (State, error)
+	// Kill signals a container
+	Kill(context.Context, uint32, bool) error
 }
 
 type LinuxContainer interface {

linux/container.go

@@ -70,3 +70,11 @@ func (c *Container) Resume(ctx context.Context) error {
 	_, err := c.shim.Resume(ctx, &shim.ResumeRequest{})
 	return err
 }
+
+func (c *Container) Kill(ctx context.Context, signal uint32, all bool) error {
+	_, err := c.shim.Kill(ctx, &shim.KillRequest{
+		Signal: signal,
+		All:    all,
+	})
+	return err
+}

services/execution/service.go

@@ -185,6 +185,17 @@ func (s *Service) List(ctx context.Context, r *api.ListRequest) (*api.ListRespon
 	return resp, nil
 }
 
+func (s *Service) Kill(ctx context.Context, r *api.KillRequest) (*google_protobuf.Empty, error) {
+	c, err := s.getContainer(r.ID)
+	if err != nil {
+		return nil, err
+	}
+	if err := c.Kill(ctx, r.Signal, r.All); err != nil {
+		return nil, err
+	}
+	return empty, nil
+}
+
 func (s *Service) Events(r *api.EventsRequest, server api.ContainerService_EventsServer) error {
 	w := &grpcEventWriter{
 		server: server,