diff --git a/api/next.pb.txt b/api/next.pb.txt index 7f94541fc..4dbf1b736 100755 --- a/api/next.pb.txt +++ b/api/next.pb.txt @@ -1117,6 +1117,17 @@ file { json_name: "id" } } + message_type { + name: "ListContainerMessage" + field { + name: "container" + number: 1 + label: LABEL_OPTIONAL + type: TYPE_MESSAGE + type_name: ".containerd.services.containers.v1.Container" + json_name: "container" + } + } service { name: "Containers" method { @@ -1129,6 +1140,12 @@ file { input_type: ".containerd.services.containers.v1.ListContainersRequest" output_type: ".containerd.services.containers.v1.ListContainersResponse" } + method { + name: "ListStream" + input_type: ".containerd.services.containers.v1.ListContainersRequest" + output_type: ".containerd.services.containers.v1.ListContainerMessage" + server_streaming: true + } method { name: "Create" input_type: ".containerd.services.containers.v1.CreateContainerRequest" diff --git a/api/services/containers/v1/containers.pb.go b/api/services/containers/v1/containers.pb.go index a8720bb6f..4d9322164 100644 --- a/api/services/containers/v1/containers.pb.go +++ b/api/services/containers/v1/containers.pb.go @@ -18,6 +18,7 @@ UpdateContainerRequest UpdateContainerResponse DeleteContainerRequest + ListContainerMessage */ package containers @@ -218,6 +219,14 @@ func (m *DeleteContainerRequest) Reset() { *m = DeleteContain func (*DeleteContainerRequest) ProtoMessage() {} func (*DeleteContainerRequest) Descriptor() ([]byte, []int) { return fileDescriptorContainers, []int{9} } +type ListContainerMessage struct { + Container *Container `protobuf:"bytes,1,opt,name=container" json:"container,omitempty"` +} + +func (m *ListContainerMessage) Reset() { *m = ListContainerMessage{} } +func (*ListContainerMessage) ProtoMessage() {} +func (*ListContainerMessage) Descriptor() ([]byte, []int) { return fileDescriptorContainers, []int{10} } + func init() { proto.RegisterType((*Container)(nil), "containerd.services.containers.v1.Container") proto.RegisterType((*Container_Runtime)(nil), "containerd.services.containers.v1.Container.Runtime") @@ -230,6 +239,7 @@ func init() { proto.RegisterType((*UpdateContainerRequest)(nil), "containerd.services.containers.v1.UpdateContainerRequest") proto.RegisterType((*UpdateContainerResponse)(nil), "containerd.services.containers.v1.UpdateContainerResponse") proto.RegisterType((*DeleteContainerRequest)(nil), "containerd.services.containers.v1.DeleteContainerRequest") + proto.RegisterType((*ListContainerMessage)(nil), "containerd.services.containers.v1.ListContainerMessage") } // Reference imports to suppress errors if they are not otherwise used. @@ -245,6 +255,7 @@ const _ = grpc.SupportPackageIsVersion4 type ContainersClient interface { Get(ctx context.Context, in *GetContainerRequest, opts ...grpc.CallOption) (*GetContainerResponse, error) List(ctx context.Context, in *ListContainersRequest, opts ...grpc.CallOption) (*ListContainersResponse, error) + ListStream(ctx context.Context, in *ListContainersRequest, opts ...grpc.CallOption) (Containers_ListStreamClient, error) Create(ctx context.Context, in *CreateContainerRequest, opts ...grpc.CallOption) (*CreateContainerResponse, error) Update(ctx context.Context, in *UpdateContainerRequest, opts ...grpc.CallOption) (*UpdateContainerResponse, error) Delete(ctx context.Context, in *DeleteContainerRequest, opts ...grpc.CallOption) (*google_protobuf2.Empty, error) @@ -276,6 +287,38 @@ func (c *containersClient) List(ctx context.Context, in *ListContainersRequest, return out, nil } +func (c *containersClient) ListStream(ctx context.Context, in *ListContainersRequest, opts ...grpc.CallOption) (Containers_ListStreamClient, error) { + stream, err := grpc.NewClientStream(ctx, &_Containers_serviceDesc.Streams[0], c.cc, "/containerd.services.containers.v1.Containers/ListStream", opts...) + if err != nil { + return nil, err + } + x := &containersListStreamClient{stream} + if err := x.ClientStream.SendMsg(in); err != nil { + return nil, err + } + if err := x.ClientStream.CloseSend(); err != nil { + return nil, err + } + return x, nil +} + +type Containers_ListStreamClient interface { + Recv() (*ListContainerMessage, error) + grpc.ClientStream +} + +type containersListStreamClient struct { + grpc.ClientStream +} + +func (x *containersListStreamClient) Recv() (*ListContainerMessage, error) { + m := new(ListContainerMessage) + if err := x.ClientStream.RecvMsg(m); err != nil { + return nil, err + } + return m, nil +} + func (c *containersClient) Create(ctx context.Context, in *CreateContainerRequest, opts ...grpc.CallOption) (*CreateContainerResponse, error) { out := new(CreateContainerResponse) err := grpc.Invoke(ctx, "/containerd.services.containers.v1.Containers/Create", in, out, c.cc, opts...) @@ -308,6 +351,7 @@ func (c *containersClient) Delete(ctx context.Context, in *DeleteContainerReques type ContainersServer interface { Get(context.Context, *GetContainerRequest) (*GetContainerResponse, error) List(context.Context, *ListContainersRequest) (*ListContainersResponse, error) + ListStream(*ListContainersRequest, Containers_ListStreamServer) error Create(context.Context, *CreateContainerRequest) (*CreateContainerResponse, error) Update(context.Context, *UpdateContainerRequest) (*UpdateContainerResponse, error) Delete(context.Context, *DeleteContainerRequest) (*google_protobuf2.Empty, error) @@ -353,6 +397,27 @@ func _Containers_List_Handler(srv interface{}, ctx context.Context, dec func(int return interceptor(ctx, in, info, handler) } +func _Containers_ListStream_Handler(srv interface{}, stream grpc.ServerStream) error { + m := new(ListContainersRequest) + if err := stream.RecvMsg(m); err != nil { + return err + } + return srv.(ContainersServer).ListStream(m, &containersListStreamServer{stream}) +} + +type Containers_ListStreamServer interface { + Send(*ListContainerMessage) error + grpc.ServerStream +} + +type containersListStreamServer struct { + grpc.ServerStream +} + +func (x *containersListStreamServer) Send(m *ListContainerMessage) error { + return x.ServerStream.SendMsg(m) +} + func _Containers_Create_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) { in := new(CreateContainerRequest) if err := dec(in); err != nil { @@ -432,7 +497,13 @@ var _Containers_serviceDesc = grpc.ServiceDesc{ Handler: _Containers_Delete_Handler, }, }, - Streams: []grpc.StreamDesc{}, + Streams: []grpc.StreamDesc{ + { + StreamName: "ListStream", + Handler: _Containers_ListStream_Handler, + ServerStreams: true, + }, + }, Metadata: "github.com/containerd/containerd/api/services/containers/v1/containers.proto", } @@ -842,6 +913,34 @@ func (m *DeleteContainerRequest) MarshalTo(dAtA []byte) (int, error) { return i, nil } +func (m *ListContainerMessage) 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 *ListContainerMessage) MarshalTo(dAtA []byte) (int, error) { + var i int + _ = i + var l int + _ = l + if m.Container != nil { + dAtA[i] = 0xa + i++ + i = encodeVarintContainers(dAtA, i, uint64(m.Container.Size())) + n13, err := m.Container.MarshalTo(dAtA[i:]) + if err != nil { + return 0, err + } + i += n13 + } + return i, nil +} + func encodeVarintContainers(dAtA []byte, offset int, v uint64) int { for v >= 1<<7 { dAtA[offset] = uint8(v&0x7f | 0x80) @@ -1004,6 +1103,16 @@ func (m *DeleteContainerRequest) Size() (n int) { return n } +func (m *ListContainerMessage) Size() (n int) { + var l int + _ = l + if m.Container != nil { + l = m.Container.Size() + n += 1 + l + sovContainers(uint64(l)) + } + return n +} + func sovContainers(x uint64) (n int) { for { n++ @@ -1158,6 +1267,16 @@ func (this *DeleteContainerRequest) String() string { }, "") return s } +func (this *ListContainerMessage) String() string { + if this == nil { + return "nil" + } + s := strings.Join([]string{`&ListContainerMessage{`, + `Container:` + strings.Replace(fmt.Sprintf("%v", this.Container), "Container", "Container", 1) + `,`, + `}`, + }, "") + return s +} func valueToStringContainers(v interface{}) string { rv := reflect.ValueOf(v) if rv.IsNil() { @@ -2562,6 +2681,89 @@ func (m *DeleteContainerRequest) Unmarshal(dAtA []byte) error { } return nil } +func (m *ListContainerMessage) 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 ErrIntOverflowContainers + } + 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: ListContainerMessage: wiretype end group for non-group") + } + if fieldNum <= 0 { + return fmt.Errorf("proto: ListContainerMessage: illegal tag %d (wire type %d)", fieldNum, wire) + } + switch fieldNum { + case 1: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field Container", wireType) + } + var msglen int + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowContainers + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + msglen |= (int(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + if msglen < 0 { + return ErrInvalidLengthContainers + } + postIndex := iNdEx + msglen + if postIndex > l { + return io.ErrUnexpectedEOF + } + if m.Container == nil { + m.Container = &Container{} + } + if err := m.Container.Unmarshal(dAtA[iNdEx:postIndex]); err != nil { + return err + } + iNdEx = postIndex + default: + iNdEx = preIndex + skippy, err := skipContainers(dAtA[iNdEx:]) + if err != nil { + return err + } + if skippy < 0 { + return ErrInvalidLengthContainers + } + if (iNdEx + skippy) > l { + return io.ErrUnexpectedEOF + } + iNdEx += skippy + } + } + + if iNdEx > l { + return io.ErrUnexpectedEOF + } + return nil +} func skipContainers(dAtA []byte) (n int, err error) { l := len(dAtA) iNdEx := 0 @@ -2672,54 +2874,57 @@ func init() { } var fileDescriptorContainers = []byte{ - // 776 bytes of a gzipped FileDescriptorProto - 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xb4, 0x56, 0xcd, 0x72, 0xd2, 0x50, - 0x14, 0x26, 0x81, 0x86, 0x72, 0x70, 0x46, 0xe7, 0x8a, 0x18, 0xe3, 0x0c, 0x50, 0x56, 0x8c, 0xa3, - 0xc1, 0xa2, 0xa3, 0xfd, 0x71, 0x53, 0xfa, 0x37, 0x8e, 0xad, 0xd3, 0x89, 0x3a, 0xe3, 0xe8, 0xa2, - 0x06, 0xb8, 0xa5, 0x91, 0xfc, 0x99, 0x7b, 0x61, 0x64, 0x5c, 0xe8, 0x23, 0xb8, 0xf3, 0x11, 0x7c, - 0x95, 0x2e, 0x5d, 0xba, 0xaa, 0x2d, 0x4f, 0xe2, 0xe4, 0x26, 0x21, 0x29, 0x04, 0x85, 0x2a, 0xbb, - 0x7b, 0xb8, 0xe7, 0xfb, 0xce, 0xc7, 0x77, 0xce, 0xb9, 0x00, 0x7b, 0x6d, 0x8d, 0x1e, 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0xf6, 0xb6, 0x9f, 0x17, 0xce, 0xfa, 0x79, + 0xe1, 0x53, 0x3f, 0x2f, 0x7c, 0xed, 0xe7, 0x85, 0x67, 0x3b, 0xd7, 0xf8, 0xb8, 0x5d, 0x0f, 0xa3, + 0xa7, 0xb1, 0xba, 0xc8, 0x7a, 0xde, 0xfe, 0x1e, 0x00, 0x00, 0xff, 0xff, 0xd0, 0xae, 0xca, 0xcb, + 0x2f, 0x0b, 0x00, 0x00, } diff --git a/api/services/containers/v1/containers.proto b/api/services/containers/v1/containers.proto index b7b32d949..d491f46cf 100644 --- a/api/services/containers/v1/containers.proto +++ b/api/services/containers/v1/containers.proto @@ -29,6 +29,7 @@ option go_package = "github.com/containerd/containerd/api/services/containers/v1 service Containers { rpc Get(GetContainerRequest) returns (GetContainerResponse); rpc List(ListContainersRequest) returns (ListContainersResponse); + rpc ListStream(ListContainersRequest) returns (stream ListContainerMessage); rpc Create(CreateContainerRequest) returns (CreateContainerResponse); rpc Update(UpdateContainerRequest) returns (UpdateContainerResponse); rpc Delete(DeleteContainerRequest) returns (google.protobuf.Empty); @@ -156,3 +157,7 @@ message UpdateContainerResponse { message DeleteContainerRequest { string id = 1; } + +message ListContainerMessage { + Container container = 1; +} diff --git a/containerstore.go b/containerstore.go index ee3d8c727..2756e2a68 100644 --- a/containerstore.go +++ b/containerstore.go @@ -18,11 +18,15 @@ package containerd import ( "context" + "errors" + "io" containersapi "github.com/containerd/containerd/api/services/containers/v1" "github.com/containerd/containerd/containers" "github.com/containerd/containerd/errdefs" ptypes "github.com/gogo/protobuf/types" + "google.golang.org/grpc/codes" + "google.golang.org/grpc/status" ) type remoteContainers struct { @@ -50,15 +54,56 @@ func (r *remoteContainers) Get(ctx context.Context, id string) (containers.Conta } func (r *remoteContainers) List(ctx context.Context, filters ...string) ([]containers.Container, error) { + containers, err := r.stream(ctx, filters...) + if err != nil { + if err == errStreamNotAvailable { + return r.list(ctx, filters...) + } + return nil, err + } + return containers, nil +} + +func (r *remoteContainers) list(ctx context.Context, filters ...string) ([]containers.Container, error) { resp, err := r.client.List(ctx, &containersapi.ListContainersRequest{ Filters: filters, }) if err != nil { return nil, errdefs.FromGRPC(err) } - return containersFromProto(resp.Containers), nil +} +var errStreamNotAvailable = errors.New("streaming api not available") + +func (r *remoteContainers) stream(ctx context.Context, filters ...string) ([]containers.Container, error) { + session, err := r.client.ListStream(ctx, &containersapi.ListContainersRequest{ + Filters: filters, + }) + if err != nil { + return nil, errdefs.FromGRPC(err) + } + var containers []containers.Container + for { + c, err := session.Recv() + if err != nil { + if err == io.EOF { + return containers, nil + } + if s, ok := status.FromError(err); ok { + if s.Code() == codes.Unimplemented { + return nil, errStreamNotAvailable + } + } + return nil, errdefs.FromGRPC(err) + } + select { + case <-ctx.Done(): + return containers, ctx.Err() + default: + containers = append(containers, containerFromProto(c.Container)) + } + } } func (r *remoteContainers) Create(ctx context.Context, container containers.Container) (containers.Container, error) { diff --git a/services/containers/local.go b/services/containers/local.go index 424bc21e6..6f4b3d4d3 100644 --- a/services/containers/local.go +++ b/services/containers/local.go @@ -18,6 +18,7 @@ package containers import ( "context" + "io" "github.com/boltdb/bolt" eventstypes "github.com/containerd/containerd/api/events" @@ -31,6 +32,7 @@ import ( ptypes "github.com/gogo/protobuf/types" "google.golang.org/grpc" "google.golang.org/grpc/codes" + grpcm "google.golang.org/grpc/metadata" "google.golang.org/grpc/status" ) @@ -78,18 +80,30 @@ func (l *local) Get(ctx context.Context, req *api.GetContainerRequest, _ ...grpc func (l *local) List(ctx context.Context, req *api.ListContainersRequest, _ ...grpc.CallOption) (*api.ListContainersResponse, error) { var resp api.ListContainersResponse - return &resp, errdefs.ToGRPC(l.withStoreView(ctx, func(ctx context.Context, store containers.Store) error { containers, err := store.List(ctx, req.Filters...) if err != nil { return err } - resp.Containers = containersToProto(containers) return nil })) } +func (l *local) ListStream(ctx context.Context, req *api.ListContainersRequest, _ ...grpc.CallOption) (api.Containers_ListStreamClient, error) { + stream := &localStream{ + ctx: ctx, + } + return stream, errdefs.ToGRPC(l.withStoreView(ctx, func(ctx context.Context, store containers.Store) error { + containers, err := store.List(ctx, req.Filters...) + if err != nil { + return err + } + stream.containers = containersToProto(containers) + return nil + })) +} + func (l *local) Create(ctx context.Context, req *api.CreateContainerRequest, _ ...grpc.CallOption) (*api.CreateContainerResponse, error) { var resp api.CreateContainerResponse @@ -188,3 +202,44 @@ func (l *local) withStoreView(ctx context.Context, fn func(ctx context.Context, func (l *local) withStoreUpdate(ctx context.Context, fn func(ctx context.Context, store containers.Store) error) error { return l.db.Update(l.withStore(ctx, fn)) } + +type localStream struct { + ctx context.Context + containers []api.Container + i int +} + +func (s *localStream) Recv() (*api.ListContainerMessage, error) { + if s.i >= len(s.containers) { + return nil, io.EOF + } + c := s.containers[s.i] + s.i++ + return &api.ListContainerMessage{ + Container: &c, + }, nil +} + +func (s *localStream) Context() context.Context { + return s.ctx +} + +func (s *localStream) CloseSend() error { + return nil +} + +func (s *localStream) Header() (grpcm.MD, error) { + return nil, nil +} + +func (s *localStream) Trailer() grpcm.MD { + return nil +} + +func (s *localStream) SendMsg(m interface{}) error { + return nil +} + +func (s *localStream) RecvMsg(m interface{}) error { + return nil +} diff --git a/services/containers/service.go b/services/containers/service.go index 89c072cbb..897964aca 100644 --- a/services/containers/service.go +++ b/services/containers/service.go @@ -18,6 +18,7 @@ package containers import ( "context" + "io" api "github.com/containerd/containerd/api/services/containers/v1" "github.com/containerd/containerd/plugin" @@ -71,6 +72,31 @@ func (s *service) List(ctx context.Context, req *api.ListContainersRequest) (*ap return s.local.List(ctx, req) } +func (s *service) ListStream(req *api.ListContainersRequest, stream api.Containers_ListStreamServer) error { + containers, err := s.local.ListStream(stream.Context(), req) + if err != nil { + return err + } + for { + select { + case <-stream.Context().Done(): + return nil + default: + c, err := containers.Recv() + if err != nil { + if err == io.EOF { + return nil + } + return err + } + if err := stream.Send(c); err != nil { + return err + } + } + } + return nil +} + func (s *service) Create(ctx context.Context, req *api.CreateContainerRequest) (*api.CreateContainerResponse, error) { return s.local.Create(ctx, req) }