Go mods initialized, protos without gogo

Makefile

@@ -23,11 +23,11 @@
 # ARISING FROM, OUT OF OR IN CONNECTION WITH
 # THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-PACKAGES=$(shell go list ./... | grep -v /vendor/)
 GIT_COMMIT=$(shell git rev-parse --short HEAD)
 GOOS ?= $(shell go env GOOS)
+PROTOS=$(shell find . -name \*.proto)
 
-export GO111MODULE=off
+export GO111MODULE=auto
 
 all: protos example cli
 
@@ -35,7 +35,7 @@ cli:
 	cd cmd && go build -v -o ../bin/docker
 
 protos:
-	@protobuild --quiet ${PACKAGES}
+	@protoc -I. --go_out=plugins=grpc,paths=source_relative:. ${PROTOS}
 
 example:
 	cd example/backend && go build -v -o ../../bin/backend-example

Protobuild.toml

@@ -1,30 +0,0 @@
-version = "unstable"
-generator = "gogo"
-plugins = ["grpc"]
-
-# Control protoc include paths. Below are usually some good defaults, but feel
-# free to try it without them if it works for your project.
-[includes]
-  # Paths that should be treated as include roots in relation to the vendor
-  # directory. These will be calculated with the vendor directory nearest the
-  # target package.
-  #packages = ["github.com/gogo/protobuf", "github.com/gogo/googleapis"]
-
-  # Paths that will be added untouched to the end of the includes. We use
-  # `/usr/local/include` to pickup the common install location of protobuf.
-  # This is the default.
-  #after = ["/usr/local/include", "/usr/include"]
-
-  vendored = ["github.com/gogo/protobuf", "github.com/gogo/googleapis"]
-
-# This section maps protobuf imports to Go packages. These will become
-# `-M` directives in the call to the go protobuf generator.
-[packages]
-  "gogoproto/gogo.proto" = "github.com/gogo/protobuf/gogoproto"
-  "google/protobuf/any.proto" = "github.com/gogo/protobuf/types"
-  "google/protobuf/empty.proto" = "github.com/gogo/protobuf/types"
-  "google/protobuf/descriptor.proto" = "github.com/gogo/protobuf/protoc-gen-gogo/descriptor"
-  "google/protobuf/field_mask.proto" = "github.com/gogo/protobuf/types"
-  "google/protobuf/timestamp.proto" = "github.com/gogo/protobuf/types"
-  "google/protobuf/duration.proto" = "github.com/gogo/protobuf/types"
-  "google/rpc/status.proto" = "github.com/gogo/googleapis/google/rpc"

backend/v1/backend.pb.go

@@ -1,119 +1,196 @@
-// Code generated by protoc-gen-gogo. DO NOT EDIT.
-// source: github.com/docker/api/backend/v1/backend.proto
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.21.0
+// 	protoc        v3.11.4
+// source: backend/v1/backend.proto
 
 package v1
 
 import (
 	context "context"
-	fmt "fmt"
-	proto "github.com/gogo/protobuf/proto"
-	types "github.com/gogo/protobuf/types"
+	proto "github.com/golang/protobuf/proto"
+	empty "github.com/golang/protobuf/ptypes/empty"
 	grpc "google.golang.org/grpc"
 	codes "google.golang.org/grpc/codes"
 	status "google.golang.org/grpc/status"
-	math "math"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
 )
 
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
 
-// 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.GoGoProtoPackageIsVersion3 // please upgrade the proto package
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
 
 type BackendInformationResponse struct {
-	ID                   string   `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
 
-func (m *BackendInformationResponse) Reset()         { *m = BackendInformationResponse{} }
-func (m *BackendInformationResponse) String() string { return proto.CompactTextString(m) }
-func (*BackendInformationResponse) ProtoMessage()    {}
-func (*BackendInformationResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_511f43e0e6c515ac, []int{0}
-}
-func (m *BackendInformationResponse) XXX_Unmarshal(b []byte) error {
-	return xxx_messageInfo_BackendInformationResponse.Unmarshal(m, b)
+	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
 }
-func (m *BackendInformationResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_BackendInformationResponse.Marshal(b, m, deterministic)
-}
-func (m *BackendInformationResponse) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_BackendInformationResponse.Merge(m, src)
+
+func (x *BackendInformationResponse) Reset() {
+	*x = BackendInformationResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_backend_v1_backend_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
 }
-func (m *BackendInformationResponse) XXX_Size() int {
-	return xxx_messageInfo_BackendInformationResponse.Size(m)
+
+func (x *BackendInformationResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
 }
-func (m *BackendInformationResponse) XXX_DiscardUnknown() {
-	xxx_messageInfo_BackendInformationResponse.DiscardUnknown(m)
+
+func (*BackendInformationResponse) ProtoMessage() {}
+
+func (x *BackendInformationResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_backend_v1_backend_proto_msgTypes[0]
+	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)
 }
 
-var xxx_messageInfo_BackendInformationResponse proto.InternalMessageInfo
+// Deprecated: Use BackendInformationResponse.ProtoReflect.Descriptor instead.
+func (*BackendInformationResponse) Descriptor() ([]byte, []int) {
+	return file_backend_v1_backend_proto_rawDescGZIP(), []int{0}
+}
 
-func (m *BackendInformationResponse) GetID() string {
-	if m != nil {
-		return m.ID
+func (x *BackendInformationResponse) GetId() string {
+	if x != nil {
+		return x.Id
 	}
 	return ""
 }
 
-func init() {
-	proto.RegisterType((*BackendInformationResponse)(nil), "com.docker.api.backend.v1.BackendInformationResponse")
+var File_backend_v1_backend_proto protoreflect.FileDescriptor
+
+var file_backend_v1_backend_proto_rawDesc = []byte{
+	0x0a, 0x18, 0x62, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x2f, 0x76, 0x31, 0x2f, 0x62, 0x61, 0x63,
+	0x6b, 0x65, 0x6e, 0x64, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x19, 0x63, 0x6f, 0x6d, 0x2e,
+	0x64, 0x6f, 0x63, 0x6b, 0x65, 0x72, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x62, 0x61, 0x63, 0x6b, 0x65,
+	0x6e, 0x64, 0x2e, 0x76, 0x31, 0x1a, 0x1b, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x65, 0x6d, 0x70, 0x74, 0x79, 0x2e, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x22, 0x2c, 0x0a, 0x1a, 0x42, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x49, 0x6e, 0x66,
+	0x6f, 0x72, 0x6d, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65,
+	0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x02, 0x69, 0x64,
+	0x32, 0x6e, 0x0a, 0x07, 0x42, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x12, 0x63, 0x0a, 0x12, 0x42,
+	0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x49, 0x6e, 0x66, 0x6f, 0x72, 0x6d, 0x61, 0x74, 0x69, 0x6f,
+	0x6e, 0x12, 0x16, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x62, 0x75, 0x66, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x1a, 0x35, 0x2e, 0x63, 0x6f, 0x6d, 0x2e,
+	0x64, 0x6f, 0x63, 0x6b, 0x65, 0x72, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x62, 0x61, 0x63, 0x6b, 0x65,
+	0x6e, 0x64, 0x2e, 0x76, 0x31, 0x2e, 0x42, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x49, 0x6e, 0x66,
+	0x6f, 0x72, 0x6d, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65,
+	0x42, 0x25, 0x5a, 0x23, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x64,
+	0x6f, 0x63, 0x6b, 0x65, 0x72, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x62, 0x61, 0x63, 0x6b, 0x65, 0x6e,
+	0x64, 0x2f, 0x76, 0x31, 0x3b, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_backend_v1_backend_proto_rawDescOnce sync.Once
+	file_backend_v1_backend_proto_rawDescData = file_backend_v1_backend_proto_rawDesc
+)
+
+func file_backend_v1_backend_proto_rawDescGZIP() []byte {
+	file_backend_v1_backend_proto_rawDescOnce.Do(func() {
+		file_backend_v1_backend_proto_rawDescData = protoimpl.X.CompressGZIP(file_backend_v1_backend_proto_rawDescData)
+	})
+	return file_backend_v1_backend_proto_rawDescData
 }
 
-func init() {
-	proto.RegisterFile("github.com/docker/api/backend/v1/backend.proto", fileDescriptor_511f43e0e6c515ac)
+var file_backend_v1_backend_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_backend_v1_backend_proto_goTypes = []interface{}{
+	(*BackendInformationResponse)(nil), // 0: com.docker.api.backend.v1.BackendInformationResponse
+	(*empty.Empty)(nil),                // 1: google.protobuf.Empty
+}
+var file_backend_v1_backend_proto_depIdxs = []int32{
+	1, // 0: com.docker.api.backend.v1.Backend.BackendInformation:input_type -> google.protobuf.Empty
+	0, // 1: com.docker.api.backend.v1.Backend.BackendInformation:output_type -> com.docker.api.backend.v1.BackendInformationResponse
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] 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
 }
 
-var fileDescriptor_511f43e0e6c515ac = []byte{
-	// 218 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xd2, 0x4b, 0xcf, 0x2c, 0xc9,
-	0x28, 0x4d, 0xd2, 0x4b, 0xce, 0xcf, 0xd5, 0x4f, 0xc9, 0x4f, 0xce, 0x4e, 0x2d, 0xd2, 0x4f, 0x2c,
-	0xc8, 0xd4, 0x4f, 0x4a, 0x4c, 0xce, 0x4e, 0xcd, 0x4b, 0xd1, 0x2f, 0x33, 0x84, 0x31, 0xf5, 0x0a,
-	0x8a, 0xf2, 0x4b, 0xf2, 0x85, 0x24, 0x93, 0xf3, 0x73, 0xf5, 0x20, 0x0a, 0xf5, 0x12, 0x0b, 0x32,
-	0xf5, 0x60, 0xb2, 0x65, 0x86, 0x52, 0x22, 0xe9, 0xf9, 0xe9, 0xf9, 0x60, 0x55, 0xfa, 0x20, 0x16,
-	0x44, 0x83, 0x94, 0x74, 0x7a, 0x7e, 0x7e, 0x7a, 0x4e, 0xaa, 0x3e, 0x98, 0x97, 0x54, 0x9a, 0xa6,
-	0x9f, 0x9a, 0x5b, 0x50, 0x52, 0x09, 0x91, 0x54, 0x32, 0xe1, 0x92, 0x72, 0x82, 0x18, 0xe0, 0x99,
-	0x97, 0x96, 0x5f, 0x94, 0x9b, 0x58, 0x92, 0x99, 0x9f, 0x17, 0x94, 0x5a, 0x5c, 0x90, 0x9f, 0x57,
-	0x9c, 0x2a, 0x24, 0xc6, 0xc5, 0x94, 0x99, 0x22, 0xc1, 0xa8, 0xc0, 0xa8, 0xc1, 0xe9, 0xc4, 0xf6,
-	0xe8, 0x9e, 0x3c, 0x93, 0xa7, 0x4b, 0x10, 0x53, 0x66, 0x8a, 0x51, 0x1e, 0x17, 0x3b, 0x54, 0x97,
-	0x50, 0x32, 0x97, 0x10, 0xa6, 0x01, 0x42, 0x62, 0x7a, 0x10, 0x4b, 0xf5, 0x60, 0x96, 0xea, 0xb9,
-	0x82, 0x2c, 0x95, 0x32, 0xd5, 0xc3, 0xe9, 0x7a, 0x3d, 0xdc, 0xee, 0x70, 0x52, 0x8d, 0x52, 0x26,
-	0x14, 0x4a, 0xd6, 0x65, 0x86, 0x11, 0x0c, 0x49, 0x6c, 0x60, 0xfb, 0x8c, 0x01, 0x01, 0x00, 0x00,
-	0xff, 0xff, 0x3d, 0x73, 0x02, 0xd8, 0x55, 0x01, 0x00, 0x00,
+func init() { file_backend_v1_backend_proto_init() }
+func file_backend_v1_backend_proto_init() {
+	if File_backend_v1_backend_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_backend_v1_backend_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*BackendInformationResponse); 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{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_backend_v1_backend_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_backend_v1_backend_proto_goTypes,
+		DependencyIndexes: file_backend_v1_backend_proto_depIdxs,
+		MessageInfos:      file_backend_v1_backend_proto_msgTypes,
+	}.Build()
+	File_backend_v1_backend_proto = out.File
+	file_backend_v1_backend_proto_rawDesc = nil
+	file_backend_v1_backend_proto_goTypes = nil
+	file_backend_v1_backend_proto_depIdxs = nil
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
 var _ context.Context
-var _ grpc.ClientConn
+var _ grpc.ClientConnInterface
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion4
+const _ = grpc.SupportPackageIsVersion6
 
 // BackendClient is the client API for Backend service.
 //
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
 type BackendClient interface {
 	// BackendInformation returns implementation specific information on the backend.
-	BackendInformation(ctx context.Context, in *types.Empty, opts ...grpc.CallOption) (*BackendInformationResponse, error)
+	BackendInformation(ctx context.Context, in *empty.Empty, opts ...grpc.CallOption) (*BackendInformationResponse, error)
 }
 
 type backendClient struct {
-	cc *grpc.ClientConn
+	cc grpc.ClientConnInterface
 }
 
-func NewBackendClient(cc *grpc.ClientConn) BackendClient {
+func NewBackendClient(cc grpc.ClientConnInterface) BackendClient {
 	return &backendClient{cc}
 }
 
-func (c *backendClient) BackendInformation(ctx context.Context, in *types.Empty, opts ...grpc.CallOption) (*BackendInformationResponse, error) {
+func (c *backendClient) BackendInformation(ctx context.Context, in *empty.Empty, opts ...grpc.CallOption) (*BackendInformationResponse, error) {
 	out := new(BackendInformationResponse)
 	err := c.cc.Invoke(ctx, "/com.docker.api.backend.v1.Backend/BackendInformation", in, out, opts...)
 	if err != nil {
@@ -125,14 +202,14 @@ func (c *backendClient) BackendInformation(ctx context.Context, in *types.Empty,
 // BackendServer is the server API for Backend service.
 type BackendServer interface {
 	// BackendInformation returns implementation specific information on the backend.
-	BackendInformation(context.Context, *types.Empty) (*BackendInformationResponse, error)
+	BackendInformation(context.Context, *empty.Empty) (*BackendInformationResponse, error)
 }
 
 // UnimplementedBackendServer can be embedded to have forward compatible implementations.
 type UnimplementedBackendServer struct {
 }
 
-func (*UnimplementedBackendServer) BackendInformation(ctx context.Context, req *types.Empty) (*BackendInformationResponse, error) {
+func (*UnimplementedBackendServer) BackendInformation(context.Context, *empty.Empty) (*BackendInformationResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method BackendInformation not implemented")
 }
 
@@ -141,7 +218,7 @@ func RegisterBackendServer(s *grpc.Server, srv BackendServer) {
 }
 
 func _Backend_BackendInformation_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(types.Empty)
+	in := new(empty.Empty)
 	if err := dec(in); err != nil {
 		return nil, err
 	}
@@ -153,7 +230,7 @@ func _Backend_BackendInformation_Handler(srv interface{}, ctx context.Context, d
 		FullMethod: "/com.docker.api.backend.v1.Backend/BackendInformation",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(BackendServer).BackendInformation(ctx, req.(*types.Empty))
+		return srv.(BackendServer).BackendInformation(ctx, req.(*empty.Empty))
 	}
 	return interceptor(ctx, in, info, handler)
 }
@@ -168,5 +245,5 @@ var _Backend_serviceDesc = grpc.ServiceDesc{
 		},
 	},
 	Streams:  []grpc.StreamDesc{},
-	Metadata: "github.com/docker/api/backend/v1/backend.proto",
+	Metadata: "backend/v1/backend.proto",
 }

backend/v1/backend.proto

@@ -2,7 +2,6 @@ syntax = "proto3";
 
 package com.docker.api.backend.v1;
 
-import weak "gogoproto/gogo.proto";
 import "google/protobuf/empty.proto";
 
 option go_package = "github.com/docker/api/backend/v1;v1";
@@ -13,5 +12,5 @@ service Backend {
 }
 
 message BackendInformationResponse {
-	string id = 1 [(gogoproto.customname) = "ID"];
+	string id = 1;
 }

client/client.go

@@ -71,6 +71,7 @@ func New(address string, timeout time.Duration) (*Client, error) {
 	if err != nil {
 		return nil, err
 	}
+
 	return &Client{
 		conn:          conn,
 		BackendClient: v1.NewBackendClient(conn),

cmd/example.go

@@ -35,7 +35,7 @@ import (
 	"time"
 
 	"github.com/docker/api/client"
-	"github.com/gogo/protobuf/types"
+	"github.com/golang/protobuf/ptypes/empty"
 	"github.com/pkg/errors"
 	"github.com/urfave/cli"
 )
@@ -57,7 +57,7 @@ var exampleCommand = cli.Command{
 		}
 		defer client.Close()
 
-		info, err := client.BackendInformation(ctx, &types.Empty{})
+		info, err := client.BackendInformation(ctx, &empty.Empty{})
 		if err != nil {
 			return errors.Wrap(err, "fetch backend information")
 		}

cmd/main.go

@@ -30,6 +30,7 @@ package main
 import (
 	"fmt"
 	"io"
+	"log"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -44,7 +45,10 @@ func init() {
 	// initial hack to get the path of the project's bin dir
 	// into the env of this cli for development
 
-	path := filepath.Join(os.Getenv("GOPATH"), "src/github.com/docker/api/bin")
+	path, err := filepath.Abs(filepath.Dir(os.Args[0]))
+	if err != nil {
+		log.Fatal(err)
+	}
 	if err := os.Setenv("PATH", fmt.Sprintf("$PATH:%s", path)); err != nil {
 		panic(err)
 	}

example/backend/main.go

@@ -36,8 +36,7 @@ import (
 	v1 "github.com/docker/api/backend/v1"
 	"github.com/docker/api/client"
 	"github.com/docker/api/server"
-	_ "github.com/gogo/googleapis/google/rpc"
-	"github.com/gogo/protobuf/types"
+	"github.com/golang/protobuf/ptypes/empty"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli"
@@ -107,8 +106,8 @@ func main() {
 type backend struct {
 }
 
-func (b *backend) BackendInformation(ctx context.Context, _ *types.Empty) (*v1.BackendInformationResponse, error) {
+func (b *backend) BackendInformation(ctx context.Context, _ *empty.Empty) (*v1.BackendInformationResponse, error) {
 	return &v1.BackendInformationResponse{
-		ID: "com.docker.api.backend.example.v1",
+		Id: "com.docker.api.backend.example.v1",
 	}, nil
 }

go.mod

@@ -3,9 +3,7 @@ module github.com/docker/api
 go 1.13
 
 require (
-	github.com/gogo/googleapis v1.3.2
-	github.com/gogo/protobuf v1.3.1
-	github.com/golang/protobuf v1.3.3
+	github.com/golang/protobuf v1.4.0
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/opencontainers/go-digest v1.0.0-rc1
@@ -14,4 +12,5 @@ require (
 	github.com/sirupsen/logrus v1.5.0
 	github.com/urfave/cli v1.22.4
 	google.golang.org/grpc v1.28.1
+	google.golang.org/protobuf v1.21.0
 )

go.sum

@@ -16,6 +16,7 @@ github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGX
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
@@ -25,20 +26,23 @@ github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
-github.com/gogo/googleapis v1.3.2 h1:kX1es4djPJrsDhY7aZKJy7aZasdcB5oSOEphMjSB53c=
-github.com/gogo/googleapis v1.3.2/go.mod h1:5YRNX2z1oM5gXdAkurHa942MDgEJyk02w4OecKY87+c=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
-github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls=
-github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I=
 github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
+github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
+github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
+github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
+github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
+github.com/golang/protobuf v1.4.0 h1:oOuy+ugB+P/kBdUnG5QaMXSIyJ1q38wWSojYCb3z5VQ=
+github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
+github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 h1:Ovs26xHkKqVztRpIrF/92BcuyuQ/YW4NSIpoGtfXNho=
@@ -46,12 +50,13 @@ github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgf
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
 github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
-github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
-github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
+github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
@@ -68,6 +73,7 @@ github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
@@ -97,6 +103,7 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/urfave/cli v1.22.4 h1:u7tSpNPPswAFymm8IehJhy4uJMlUuU/GmqSkvJ1InXA=
 github.com/urfave/cli v1.22.4/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
@@ -130,11 +137,11 @@ golang.org/x/sys v0.0.0-20200122134326-e047566fdf82 h1:ywK/j/KkyTHcdyYSZNXGjMwgm
 golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -146,12 +153,20 @@ google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyac
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.28.1 h1:C1QC6KzgSiLyBabDi87BbjaGreoRgGUF5nOyvfrAZ1k=
 google.golang.org/grpc v1.28.1/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60=
+google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
+google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
+google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
+google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
+google.golang.org/protobuf v1.21.0 h1:qdOKuR/EIArgaWNjetjgTzgVTAZ+S/WXVrq9HW9zimw=
+google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.5 h1:ymVxjfMaHvXD8RqPRmzHHsB3VvucivSkIAvJFDI5O3c=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=