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add PullImage method to gRPC Docker service

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This commit is contained in:
Pavel Sviderski
2024-12-03 18:07:00 +10:00
parent 417427b4d5
commit 43ddb5c363
5 changed files with 340 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
internal/machine/api/pb/docker.pb.go
+164 -21
View File
@@ -208,6 +208,110 @@ func (x *StartContainerRequest) GetOptions() []byte {
return nil
}
type PullImageRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Image string `protobuf:"bytes,1,opt,name=image,proto3" json:"image,omitempty"`
// JSON serialized image.PullOptions.
Options []byte `protobuf:"bytes,2,opt,name=options,proto3" json:"options,omitempty"`
}
func (x *PullImageRequest) Reset() {
*x = PullImageRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_internal_machine_api_pb_docker_proto_msgTypes[3]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *PullImageRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*PullImageRequest) ProtoMessage() {}
func (x *PullImageRequest) ProtoReflect() protoreflect.Message {
mi := &file_internal_machine_api_pb_docker_proto_msgTypes[3]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use PullImageRequest.ProtoReflect.Descriptor instead.
func (*PullImageRequest) Descriptor() ([]byte, []int) {
return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{3}
}
func (x *PullImageRequest) GetImage() string {
if x != nil {
return x.Image
}
return ""
}
func (x *PullImageRequest) GetOptions() []byte {
if x != nil {
return x.Options
}
return nil
}
type JSONMessage struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// JSON serialized jsonmessage.JSONMessage.
Message []byte `protobuf:"bytes,1,opt,name=message,proto3" json:"message,omitempty"`
}
func (x *JSONMessage) Reset() {
*x = JSONMessage{}
if protoimpl.UnsafeEnabled {
mi := &file_internal_machine_api_pb_docker_proto_msgTypes[4]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *JSONMessage) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*JSONMessage) ProtoMessage() {}
func (x *JSONMessage) ProtoReflect() protoreflect.Message {
mi := &file_internal_machine_api_pb_docker_proto_msgTypes[4]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use JSONMessage.ProtoReflect.Descriptor instead.
func (*JSONMessage) Descriptor() ([]byte, []int) {
return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{4}
}
func (x *JSONMessage) GetMessage() []byte {
if x != nil {
return x.Message
}
return nil
}
var File_internal_machine_api_pb_docker_proto protoreflect.FileDescriptor
var file_internal_machine_api_pb_docker_proto_rawDesc = []byte{
@@ -233,21 +337,32 @@ var file_internal_machine_api_pb_docker_proto_rawDesc = []byte{
0x61, 0x72, 0x74, 0x43, 0x6f, 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75,
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0x6f, 0x33,
}
var (
@@ -262,20 +377,24 @@ func file_internal_machine_api_pb_docker_proto_rawDescGZIP() []byte {
return file_internal_machine_api_pb_docker_proto_rawDescData
}
var file_internal_machine_api_pb_docker_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
var file_internal_machine_api_pb_docker_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
var file_internal_machine_api_pb_docker_proto_goTypes = []any{
(*CreateContainerRequest)(nil), // 0: api.CreateContainerRequest
(*CreateContainerResponse)(nil), // 1: api.CreateContainerResponse
(*StartContainerRequest)(nil), // 2: api.StartContainerRequest
(*emptypb.Empty)(nil), // 3: google.protobuf.Empty
(*PullImageRequest)(nil), // 3: api.PullImageRequest
(*JSONMessage)(nil), // 4: api.JSONMessage
(*emptypb.Empty)(nil), // 5: google.protobuf.Empty
}
var file_internal_machine_api_pb_docker_proto_depIdxs = []int32{
0, // 0: api.Docker.CreateContainer:input_type -> api.CreateContainerRequest
2, // 1: api.Docker.StartContainer:input_type -> api.StartContainerRequest
1, // 2: api.Docker.CreateContainer:output_type -> api.CreateContainerResponse
3, // 3: api.Docker.StartContainer:output_type -> google.protobuf.Empty
2, // [2:4] is the sub-list for method output_type
0, // [0:2] is the sub-list for method input_type
3, // 2: api.Docker.PullImage:input_type -> api.PullImageRequest
1, // 3: api.Docker.CreateContainer:output_type -> api.CreateContainerResponse
5, // 4: api.Docker.StartContainer:output_type -> google.protobuf.Empty
4, // 5: api.Docker.PullImage:output_type -> api.JSONMessage
3, // [3:6] is the sub-list for method output_type
0, // [0:3] is the sub-list for method input_type
0, // [0:0] is the sub-list for extension type_name
0, // [0:0] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
@@ -323,6 +442,30 @@ func file_internal_machine_api_pb_docker_proto_init() {
return nil
}
}
file_internal_machine_api_pb_docker_proto_msgTypes[3].Exporter = func(v any, i int) any {
switch v := v.(*PullImageRequest); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_internal_machine_api_pb_docker_proto_msgTypes[4].Exporter = func(v any, i int) any {
switch v := v.(*JSONMessage); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
@@ -330,7 +473,7 @@ func file_internal_machine_api_pb_docker_proto_init() {
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_internal_machine_api_pb_docker_proto_rawDesc,
NumEnums: 0,
NumMessages: 3,
NumMessages: 5,
NumExtensions: 0,
NumServices: 1,
},
internal/machine/api/pb/docker.proto
+12
View File
@@ -9,6 +9,7 @@ import "google/protobuf/empty.proto";
service Docker {
rpc CreateContainer(CreateContainerRequest) returns (CreateContainerResponse);
rpc StartContainer(StartContainerRequest) returns (google.protobuf.Empty);
rpc PullImage(PullImageRequest) returns (stream JSONMessage);
}
message CreateContainerRequest {
@@ -33,3 +34,14 @@ message StartContainerRequest {
// JSON serialized container.StartOptions.
bytes options = 2;
}
message PullImageRequest {
string image = 1;
// JSON serialized image.PullOptions.
bytes options = 2;
}
message JSONMessage {
// JSON serialized jsonmessage.JSONMessage.
bytes message = 1;
}
internal/machine/api/pb/docker_grpc.pb.go
+43 -1
View File
@@ -22,6 +22,7 @@ const _ = grpc.SupportPackageIsVersion9
const (
Docker_CreateContainer_FullMethodName = "/api.Docker/CreateContainer"
Docker_StartContainer_FullMethodName = "/api.Docker/StartContainer"
Docker_PullImage_FullMethodName = "/api.Docker/PullImage"
)
// DockerClient is the client API for Docker service.
@@ -30,6 +31,7 @@ const (
type DockerClient interface {
CreateContainer(ctx context.Context, in *CreateContainerRequest, opts ...grpc.CallOption) (*CreateContainerResponse, error)
StartContainer(ctx context.Context, in *StartContainerRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
PullImage(ctx context.Context, in *PullImageRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[JSONMessage], error)
}
type dockerClient struct {
@@ -60,12 +62,32 @@ func (c *dockerClient) StartContainer(ctx context.Context, in *StartContainerReq
return out, nil
}
func (c *dockerClient) PullImage(ctx context.Context, in *PullImageRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[JSONMessage], error) {
cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
stream, err := c.cc.NewStream(ctx, &Docker_ServiceDesc.Streams[0], Docker_PullImage_FullMethodName, cOpts...)
if err != nil {
return nil, err
}
x := &grpc.GenericClientStream[PullImageRequest, JSONMessage]{ClientStream: 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
}
// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
type Docker_PullImageClient = grpc.ServerStreamingClient[JSONMessage]
// DockerServer is the server API for Docker service.
// All implementations must embed UnimplementedDockerServer
// for forward compatibility.
type DockerServer interface {
CreateContainer(context.Context, *CreateContainerRequest) (*CreateContainerResponse, error)
StartContainer(context.Context, *StartContainerRequest) (*emptypb.Empty, error)
PullImage(*PullImageRequest, grpc.ServerStreamingServer[JSONMessage]) error
mustEmbedUnimplementedDockerServer()
}
@@ -82,6 +104,9 @@ func (UnimplementedDockerServer) CreateContainer(context.Context, *CreateContain
func (UnimplementedDockerServer) StartContainer(context.Context, *StartContainerRequest) (*emptypb.Empty, error) {
return nil, status.Errorf(codes.Unimplemented, "method StartContainer not implemented")
}
func (UnimplementedDockerServer) PullImage(*PullImageRequest, grpc.ServerStreamingServer[JSONMessage]) error {
return status.Errorf(codes.Unimplemented, "method PullImage not implemented")
}
func (UnimplementedDockerServer) mustEmbedUnimplementedDockerServer() {}
func (UnimplementedDockerServer) testEmbeddedByValue() {}
@@ -139,6 +164,17 @@ func _Docker_StartContainer_Handler(srv interface{}, ctx context.Context, dec fu
return interceptor(ctx, in, info, handler)
}
func _Docker_PullImage_Handler(srv interface{}, stream grpc.ServerStream) error {
m := new(PullImageRequest)
if err := stream.RecvMsg(m); err != nil {
return err
}
return srv.(DockerServer).PullImage(m, &grpc.GenericServerStream[PullImageRequest, JSONMessage]{ServerStream: stream})
}
// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
type Docker_PullImageServer = grpc.ServerStreamingServer[JSONMessage]
// Docker_ServiceDesc is the grpc.ServiceDesc for Docker service.
// It's only intended for direct use with grpc.RegisterService,
// and not to be introspected or modified (even as a copy)
@@ -155,6 +191,12 @@ var Docker_ServiceDesc = grpc.ServiceDesc{
Handler: _Docker_StartContainer_Handler,
},
},
Streams: []grpc.StreamDesc{},
Streams: []grpc.StreamDesc{
{
StreamName: "PullImage",
Handler: _Docker_PullImage_Handler,
ServerStreams: true,
},
},
Metadata: "internal/machine/api/pb/docker.proto",
}
internal/machine/docker/client.go
+62 -3
View File
@@ -5,9 +5,15 @@ import (
"encoding/json"
"fmt"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/image"
"github.com/docker/docker/api/types/network"
"github.com/docker/docker/errdefs"
"github.com/docker/docker/pkg/jsonmessage"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"io"
"uncloud/internal/machine/api/pb"
)
@@ -66,6 +72,11 @@ func (c *Client) CreateContainer(
Name: name,
})
if err != nil {
if s, ok := status.FromError(err); ok {
if s.Code() == codes.NotFound {
return resp, errdefs.NotFound(err)
}
}
return resp, err
}
@@ -76,15 +87,63 @@ func (c *Client) CreateContainer(
}
// StartContainer starts a container with the given ID and options.
func (c *Client) StartContainer(ctx context.Context, id string, options container.StartOptions) error {
optionsBytes, err := json.Marshal(options)
func (c *Client) StartContainer(ctx context.Context, id string, opts container.StartOptions) error {
optsBytes, err := json.Marshal(opts)
if err != nil {
return fmt.Errorf("marshal start options: %w", err)
}
_, err = c.grpcClient.StartContainer(ctx, &pb.StartContainerRequest{
Id: id,
Options: optionsBytes,
Options: optsBytes,
})
return err
}
type PullImageMessage struct {
Message jsonmessage.JSONMessage
Err error
}
func (c *Client) PullImage(
ctx context.Context, image string, opts image.PullOptions,
) (<-chan PullImageMessage, error) {
optsBytes, err := json.Marshal(opts)
if err != nil {
return nil, fmt.Errorf("marshal pull options: %w", err)
}
stream, err := c.grpcClient.PullImage(ctx, &pb.PullImageRequest{
Image: image,
Options: optsBytes,
})
if err != nil {
return nil, err
}
ch := make(chan PullImageMessage)
go func() {
defer close(ch)
for {
msg, err := stream.Recv()
if err == io.EOF {
return
}
if err != nil {
ch <- PullImageMessage{Err: err}
return
}
var jm jsonmessage.JSONMessage
if err = json.Unmarshal(msg.Message, &jm); err != nil {
ch <- PullImageMessage{Err: fmt.Errorf("unmarshal JSON message: %w", err)}
return
}
ch <- PullImageMessage{Message: jm}
}
}()
return ch, nil
}
internal/machine/docker/server.go
+59 -3
View File
@@ -3,13 +3,17 @@ package docker
import (
"context"
"encoding/json"
"errors"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/image"
"github.com/docker/docker/api/types/network"
"github.com/docker/docker/client"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/types/known/emptypb"
"io"
"uncloud/internal/machine/api/pb"
)
@@ -47,6 +51,9 @@ func (s *Server) CreateContainer(ctx context.Context, req *pb.CreateContainerReq
resp, err := s.client.ContainerCreate(ctx, &config, &hostConfig, &networkConfig, &platform, req.Name)
if err != nil {
if client.IsErrNotFound(err) {
return nil, status.Errorf(codes.NotFound, "create container: %v", err)
}
return nil, status.Errorf(codes.Internal, "create container: %v", err)
}
@@ -60,16 +67,65 @@ func (s *Server) CreateContainer(ctx context.Context, req *pb.CreateContainerReq
// StartContainer starts a container with the given ID and options.
func (s *Server) StartContainer(ctx context.Context, req *pb.StartContainerRequest) (*emptypb.Empty, error) {
var options container.StartOptions
var opts container.StartOptions
if len(req.Options) > 0 {
if err := json.Unmarshal(req.Options, &options); err != nil {
if err := json.Unmarshal(req.Options, &opts); err != nil {
return nil, status.Errorf(codes.InvalidArgument, "unmarshal start options: %v", err)
}
}
if err := s.client.ContainerStart(ctx, req.Id, options); err != nil {
if err := s.client.ContainerStart(ctx, req.Id, opts); err != nil {
return nil, status.Errorf(codes.Internal, "start container: %v", err)
}
return &emptypb.Empty{}, nil
}
func (s *Server) PullImage(
ctx context.Context, req *pb.PullImageRequest, stream grpc.ServerStreamingServer[pb.JSONMessage],
) error {
var opts image.PullOptions
if len(req.Options) > 0 {
if err := json.Unmarshal(req.Options, &opts); err != nil {
return status.Errorf(codes.InvalidArgument, "unmarshal pull options: %v", err)
}
}
respBody, err := s.client.ImagePull(ctx, req.Image, opts)
if err != nil {
return status.Errorf(codes.Internal, "pull image: %v", err)
}
defer respBody.Close()
decoder := json.NewDecoder(respBody)
errCh := make(chan error, 1)
go func() {
var raw json.RawMessage
for {
if err = decoder.Decode(&raw); err != nil {
if errors.Is(err, io.EOF) {
errCh <- nil
return
}
errCh <- status.Errorf(codes.Internal, "decode image pull message: %v", err)
return
}
if err = stream.Send(&pb.JSONMessage{Message: raw}); err != nil {
errCh <- status.Errorf(codes.Internal, "send image pull message to stream: %v", err)
return
}
}
}()
for {
select {
case err = <-errCh:
return err
case <-ctx.Done():
return status.Errorf(codes.Canceled, "pull image: %v", ctx.Err())
}
}
}