Merge pull request #1100 from crosbymichael/update-task

Implement task update
2017-06-27 14:39:45 -07:00
parent 7d6e40ef8b f36e0193a4
commit a5fa3bb923
15 changed files with 749 additions and 152 deletions
--- a/linux/shim/init.go
+++ b/linux/shim/init.go
@@ -23,6 +23,7 @@ import (
 	"github.com/containerd/containerd/plugin"
 	"github.com/containerd/fifo"
 	runc "github.com/containerd/go-runc"
+	specs "github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/pkg/errors"
 )

@@ -284,6 +285,14 @@ func (p *initProcess) Checkpoint(context context.Context, r *shimapi.CheckpointT
 	return nil
 }

+func (p *initProcess) Update(context context.Context, r *shimapi.UpdateTaskRequest) error {
+	var resources specs.LinuxResources
+	if err := json.Unmarshal(r.Resources.Value, &resources); err != nil {
+		return err
+	}
+	return p.runc.Update(context, p.id, &resources)
+}
+
 // TODO(mlaventure): move to runc package?
 func getLastRuncError(r *runc.Runc) (string, error) {
 	if r.Log == "" {
--- a/linux/shim/local.go
+++ b/linux/shim/local.go
@@ -91,6 +91,10 @@ func (c *local) ShimInfo(ctx context.Context, in *google_protobuf.Empty, opts ..
 	return c.s.ShimInfo(ctx, in)
 }

+func (c *local) Update(ctx context.Context, in *shimapi.UpdateTaskRequest, opts ...grpc.CallOption) (*google_protobuf.Empty, error) {
+	return c.s.Update(ctx, in)
+}
+
 type events struct {
 	c   chan *shimapi.Event
 	ctx context.Context
--- a/linux/shim/service.go
+++ b/linux/shim/service.go
@@ -364,6 +364,16 @@ func (s *Service) ShimInfo(ctx context.Context, r *google_protobuf.Empty) (*shim
 	}, nil
 }

+func (s *Service) Update(ctx context.Context, r *shimapi.UpdateTaskRequest) (*google_protobuf.Empty, error) {
+	if s.initProcess == nil {
+		return nil, errors.New(ErrContainerNotCreated)
+	}
+	if err := s.initProcess.Update(ctx, r); err != nil {
+		return nil, err
+	}
+	return empty, nil
+}
+
 func (s *Service) waitExit(p process, pid int, cmd *reaper.Cmd) {
 	status := <-cmd.ExitCh
 	p.Exited(status)
--- a/linux/shim/v1/shim.pb.go
+++ b/linux/shim/v1/shim.pb.go
@@ -25,6 +25,7 @@
 		ShimInfoResponse
 		StreamEventsRequest
 		Event
+		UpdateTaskRequest
 */
 package shim

@@ -258,6 +259,14 @@ func (m *Event) Reset()                    { *m = Event{} }
 func (*Event) ProtoMessage()               {}
 func (*Event) Descriptor() ([]byte, []int) { return fileDescriptorShim, []int{15} }

+type UpdateTaskRequest struct {
+	Resources *google_protobuf.Any `protobuf:"bytes,1,opt,name=resources" json:"resources,omitempty"`
+}
+
+func (m *UpdateTaskRequest) Reset()                    { *m = UpdateTaskRequest{} }
+func (*UpdateTaskRequest) ProtoMessage()               {}
+func (*UpdateTaskRequest) Descriptor() ([]byte, []int) { return fileDescriptorShim, []int{16} }
+
 func init() {
 	proto.RegisterType((*CreateTaskRequest)(nil), "containerd.runtime.linux.shim.v1.CreateTaskRequest")
 	proto.RegisterType((*CreateTaskResponse)(nil), "containerd.runtime.linux.shim.v1.CreateTaskResponse")
@@ -275,6 +284,7 @@ func init() {
 	proto.RegisterType((*ShimInfoResponse)(nil), "containerd.runtime.linux.shim.v1.ShimInfoResponse")
 	proto.RegisterType((*StreamEventsRequest)(nil), "containerd.runtime.linux.shim.v1.StreamEventsRequest")
 	proto.RegisterType((*Event)(nil), "containerd.runtime.linux.shim.v1.Event")
+	proto.RegisterType((*UpdateTaskRequest)(nil), "containerd.runtime.linux.shim.v1.UpdateTaskRequest")
 	proto.RegisterEnum("containerd.runtime.linux.shim.v1.Event_EventType", Event_EventType_name, Event_EventType_value)
 }

@@ -306,6 +316,7 @@ type ShimClient interface {
 	CloseIO(ctx context.Context, in *CloseIORequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
 	// ShimInfo returns information about the shim.
 	ShimInfo(ctx context.Context, in *google_protobuf1.Empty, opts ...grpc.CallOption) (*ShimInfoResponse, error)
+	Update(ctx context.Context, in *UpdateTaskRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
 }

 type shimClient struct {
@@ -474,6 +485,15 @@ func (c *shimClient) ShimInfo(ctx context.Context, in *google_protobuf1.Empty, o
 	return out, nil
 }

+func (c *shimClient) Update(ctx context.Context, in *UpdateTaskRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error) {
+	out := new(google_protobuf1.Empty)
+	err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/Update", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // Server API for Shim service

 type ShimServer interface {
@@ -494,6 +514,7 @@ type ShimServer interface {
 	CloseIO(context.Context, *CloseIORequest) (*google_protobuf1.Empty, error)
 	// ShimInfo returns information about the shim.
 	ShimInfo(context.Context, *google_protobuf1.Empty) (*ShimInfoResponse, error)
+	Update(context.Context, *UpdateTaskRequest) (*google_protobuf1.Empty, error)
 }

 func RegisterShimServer(s *grpc.Server, srv ShimServer) {
@@ -773,6 +794,24 @@ func _Shim_ShimInfo_Handler(srv interface{}, ctx context.Context, dec func(inter
 	return interceptor(ctx, in, info, handler)
 }

+func _Shim_Update_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(UpdateTaskRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ShimServer).Update(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/containerd.runtime.linux.shim.v1.Shim/Update",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ShimServer).Update(ctx, req.(*UpdateTaskRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 var _Shim_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "containerd.runtime.linux.shim.v1.Shim",
 	HandlerType: (*ShimServer)(nil),
@@ -833,6 +872,10 @@ var _Shim_serviceDesc = grpc.ServiceDesc{
 			MethodName: "ShimInfo",
 			Handler:    _Shim_ShimInfo_Handler,
 		},
+		{
+			MethodName: "Update",
+			Handler:    _Shim_Update_Handler,
+		},
 	},
 	Streams: []grpc.StreamDesc{
 		{
@@ -1460,6 +1503,34 @@ func (m *Event) MarshalTo(dAtA []byte) (int, error) {
 	return i, nil
 }

+func (m *UpdateTaskRequest) 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 *UpdateTaskRequest) MarshalTo(dAtA []byte) (int, error) {
+	var i int
+	_ = i
+	var l int
+	_ = l
+	if m.Resources != nil {
+		dAtA[i] = 0xa
+		i++
+		i = encodeVarintShim(dAtA, i, uint64(m.Resources.Size()))
+		n4, err := m.Resources.MarshalTo(dAtA[i:])
+		if err != nil {
+			return 0, err
+		}
+		i += n4
+	}
+	return i, nil
+}
+
 func encodeFixed64Shim(dAtA []byte, offset int, v uint64) int {
 	dAtA[offset] = uint8(v)
 	dAtA[offset+1] = uint8(v >> 8)
@@ -1759,6 +1830,16 @@ func (m *Event) Size() (n int) {
 	return n
 }

+func (m *UpdateTaskRequest) Size() (n int) {
+	var l int
+	_ = l
+	if m.Resources != nil {
+		l = m.Resources.Size()
+		n += 1 + l + sovShim(uint64(l))
+	}
+	return n
+}
+
 func sovShim(x uint64) (n int) {
 	for {
 		n++
@@ -1974,6 +2055,16 @@ func (this *Event) String() string {
 	}, "")
 	return s
 }
+func (this *UpdateTaskRequest) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&UpdateTaskRequest{`,
+		`Resources:` + strings.Replace(fmt.Sprintf("%v", this.Resources), "Any", "google_protobuf.Any", 1) + `,`,
+		`}`,
+	}, "")
+	return s
+}
 func valueToStringShim(v interface{}) string {
 	rv := reflect.ValueOf(v)
 	if rv.IsNil() {
@@ -4058,6 +4149,89 @@ func (m *Event) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *UpdateTaskRequest) 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 ErrIntOverflowShim
+			}
+			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: UpdateTaskRequest: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: UpdateTaskRequest: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Resources", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowShim
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthShim
+			}
+			postIndex := iNdEx + msglen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.Resources == nil {
+				m.Resources = &google_protobuf.Any{}
+			}
+			if err := m.Resources.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipShim(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthShim
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
 func skipShim(dAtA []byte) (n int, err error) {
 	l := len(dAtA)
 	iNdEx := 0
@@ -4168,80 +4342,82 @@ func init() {
 }

 var fileDescriptorShim = []byte{
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 }
--- a/linux/shim/v1/shim.proto
+++ b/linux/shim/v1/shim.proto
@@ -47,6 +47,8 @@ service Shim {

 	// ShimInfo returns information about the shim.
 	rpc ShimInfo(google.protobuf.Empty) returns (ShimInfoResponse);
+
+	rpc Update(UpdateTaskRequest) returns (google.protobuf.Empty);
 }

 message CreateTaskRequest {
@@ -154,3 +156,7 @@ message Event {
 	uint32 exit_status = 4;
 	google.protobuf.Timestamp exited_at = 5 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
 }
+
+message UpdateTaskRequest {
+	google.protobuf.Any resources = 1;
+}
--- a/linux/task.go
+++ b/linux/task.go
@@ -192,6 +192,16 @@ func (t *Task) DeleteProcess(ctx context.Context, pid uint32) (*plugin.Exit, err
 	}, nil
 }

+func (t *Task) Update(ctx context.Context, resources []byte) error {
+	_, err := t.shim.Update(ctx, &shim.UpdateTaskRequest{
+		Resources: &protobuf.Any{
+			TypeUrl: specs.Version,
+			Value:   resources,
+		},
+	})
+	return err
+}
+
 type Process struct {
 	pid int
 	t   *Task