support tag image

Signed-off-by: NWangFengTu <wangfengtu@huawei.com>

cmd/isulad_img/grpc.go

@@ -752,3 +752,24 @@ func (s *grpcImageService) ListContainers(ctx context.Context, req *pb.ListConta
 
 	return &pb.ListContainersResponse{Containers: containers}, nil
 }
+
+func (s *grpcImageService) TagImage(ctx context.Context, req *pb.TagImageRequest) (*pb.TagImageResponse, error) {
+	if req == nil || req.SrcName == nil || req.SrcName.Image == "" ||
+		req.DestName == nil || req.DestName.Image == "" {
+		err := errors.New("Lack infomation for tag image")
+		return &pb.TagImageResponse{
+			Errmsg: err.Error(),
+			Cc:     1,
+		}, err
+	}
+
+	err := imageTag(s.gopts, req.SrcName.Image, req.DestName.Image)
+	if err != nil {
+		return &pb.TagImageResponse{
+			Errmsg: err.Error(),
+			Cc:     1,
+		}, err
+	}
+
+	return &pb.TagImageResponse{}, nil
+}

cmd/isulad_img/image.go

@@ -154,6 +154,8 @@ type ImageServer interface {
 	ParseImageNames(imageName string) ([]parsedImageNames, error)
 	// IsSecureIndex check if indexName is insecure
 	IsSecureIndex(indexName string) bool
+	// Tag image to other name
+	Tag(srcName, destName string) error
 }
 
 func (svc *imageService) InitImage(image parsedImageNames, options *copy.Options) (types.Image, error) {
@@ -329,6 +331,19 @@ func (svc *imageService) UnrefImage(systemContext *types.SystemContext, imageNam
 	return ref.DeleteImage(svc.ctx, systemContext)
 }
 
+func (svc *imageService) Tag(srcName, destName string) error {
+	ref, err := svc.parseImageName(srcName)
+	if err != nil {
+		return err
+	}
+	img, err := imstorage.Transport.GetStoreImage(svc.store, ref)
+	if err != nil {
+		return err
+	}
+
+	return svc.store.AddName(img.ID, destName)
+}
+
 func (svc *imageService) GetStore() storage.Store {
 	return svc.store
 }

cmd/isulad_img/image_tag.go

+// Copyright (c) Huawei Technologies Co., Ltd. 2019. All rights reserved.
+// iSulad-img licensed under the Mulan PSL v1.
+// You can use this software according to the terms and conditions of the Mulan PSL v1.
+// You may obtain a copy of Mulan PSL v1 at:
+//     http://license.coscl.org.cn/MulanPSL
+// THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
+// PURPOSE.
+// See the Mulan PSL v1 for more details.
+// Description: iSulad image img
+// Author: wangfengtu
+// Create: 2020-04-15
+
+package main
+
+import (
+	"github.com/sirupsen/logrus"
+)
+
+func imageTag(gopts *globalOptions, srcName string, destName string) error {
+	imageService, err := getImageService(gopts)
+	if err != nil {
+		return err
+	}
+	err = imageService.Tag(srcName, destName)
+	if err != nil {
+		logrus.Debugf("error tagging image %v to %v: %v", srcName, destName, err)
+		return err
+	}
+
+	return err
+}

isula/isula_image.proto

@@ -86,6 +86,9 @@ service ImageService {
 
     // health check service
     rpc HealthCheck(HealthCheckRequest) returns (HealthCheckResponse) {}
+
+    // Add a tag to the image
+    rpc TagImage(TagImageRequest) returns (TagImageResponse) {}
 }
 
 message HealthCheckRequest {}
@@ -581,3 +584,13 @@ message ImageFsInfoResponse {
     string errmsg = 2;
     uint32 cc = 3;
 }
+
+message TagImageRequest {
+    ImageSpec srcName = 1;
+    ImageSpec destName = 2;
+}
+
+message TagImageResponse {
+    string errmsg = 1;
+    uint32 cc = 2;
+}