Call Harbor API to delete the images in Harbor adapter

Call Harbor API to delete the images in Harbor adapter to avoid the inconsistent between the different versions of Harbor

Signed-off-by: Wenkai Yin <yinw@vmware.com>

src/core/api/repository.go

@@ -37,10 +37,10 @@ import (
 	"github.com/goharbor/harbor/src/common/utils/notary"
 	"github.com/goharbor/harbor/src/common/utils/registry"
 	"github.com/goharbor/harbor/src/core/config"
-	"github.com/goharbor/harbor/src/core/notifier"
 	coreutils "github.com/goharbor/harbor/src/core/utils"
-	"github.com/goharbor/harbor/src/replication/event/notification"
-	"github.com/goharbor/harbor/src/replication/event/topic"
+	"github.com/goharbor/harbor/src/replication/ng"
+	"github.com/goharbor/harbor/src/replication/ng/event"
+	"github.com/goharbor/harbor/src/replication/ng/model"
 )
 
 // RepositoryAPI handles request to /api/repositories /api/repositories/tags /api/repositories/manifests, the parm has to be put
@@ -328,15 +328,21 @@ func (ra *RepositoryAPI) Delete() {
 		log.Infof("delete tag: %s:%s", repoName, t)
 
 		go func(tag string) {
-			image := repoName + ":" + tag
-			err := notifier.Publish(topic.ReplicationEventTopicOnDeletion, notification.OnDeletionNotification{
-				Image: image,
-			})
-			if err != nil {
-				log.Errorf("failed to publish on deletion topic for resource %s: %v", image, err)
-				return
+			e := &event.Event{
+				Type: event.EventTypeImagePush,
+				Resource: &model.Resource{
+					Type: model.ResourceTypeRepository,
+					Metadata: &model.ResourceMetadata{
+						Name:      repoName,
+						Namespace: projectName,
+						Vtags:     []string{tag},
+					},
+					Deleted: true,
+				},
+			}
+			if err := ng.EventHandler.Handle(e); err != nil {
+				log.Errorf("failed to handle event: %v", err)
 			}
-			log.Debugf("the on deletion topic for resource %s published", image)
 		}(t)
 
 		go func(tag string) {

src/replication/ng/adapter/harbor/image_registry.go

@@ -66,3 +66,10 @@ func (a *adapter) FetchImages(namespaces []string, filters []*model.Filter) ([]*
 
 	return resources, nil
 }
+
+// override the default implementation from the default image registry
+// by calling Harbor API directly
+func (a *adapter) DeleteManifest(repository, reference string) error {
+	url := fmt.Sprintf("%s/api/repositories/%s/tags/%s", a.coreServiceURL, repository, reference)
+	return a.client.Delete(url)
+}

src/replication/ng/adapter/image_registry.go

@@ -22,15 +22,15 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/goharbor/harbor/src/replication/ng/util"
-
 	"github.com/docker/distribution"
 	"github.com/docker/distribution/manifest/schema1"
 	"github.com/goharbor/harbor/src/common/http/modifier"
 	common_http_auth "github.com/goharbor/harbor/src/common/http/modifier/auth"
+	"github.com/goharbor/harbor/src/common/utils/log"
 	registry_pkg "github.com/goharbor/harbor/src/common/utils/registry"
 	"github.com/goharbor/harbor/src/common/utils/registry/auth"
 	"github.com/goharbor/harbor/src/replication/ng/model"
+	"github.com/goharbor/harbor/src/replication/ng/util"
 )
 
 // const definition
@@ -45,7 +45,8 @@ type ImageRegistry interface {
 	ManifestExist(repository, reference string) (exist bool, digest string, err error)
 	PullManifest(repository, reference string, accepttedMediaTypes []string) (manifest distribution.Manifest, digest string, err error)
 	PushManifest(repository, reference, mediaType string, payload []byte) error
-	DeleteManifest(repository, digest string) error
+	// the "reference" can be "tag" or "digest", the function needs to handle both
+	DeleteManifest(repository, reference string) error
 	BlobExist(repository, digest string) (exist bool, err error)
 	PullBlob(repository, digest string) (size int64, blob io.ReadCloser, err error)
 	PushBlob(repository, digest string, size int64, blob io.Reader) error
@@ -179,15 +180,24 @@ func (d *DefaultImageRegistry) PushManifest(repository, reference, mediaType str
 	return err
 }
 
-// TODO monitor the registry API request in core directly rather than using
-// the web hook
-
 // DeleteManifest ...
-func (d *DefaultImageRegistry) DeleteManifest(repository, digest string) error {
+func (d *DefaultImageRegistry) DeleteManifest(repository, reference string) error {
 	client, err := d.getClient(repository)
 	if err != nil {
 		return err
 	}
+	digest := reference
+	if !isDigest(digest) {
+		dgt, exist, err := client.ManifestExist(reference)
+		if err != nil {
+			return err
+		}
+		if !exist {
+			log.Debugf("the manifest of %s:%s doesn't exist", repository, reference)
+			return nil
+		}
+		digest = dgt
+	}
 	return client.DeleteManifest(digest)
 }
 
@@ -217,3 +227,7 @@ func (d *DefaultImageRegistry) PushBlob(repository, digest string, size int64, b
 	}
 	return client.PushBlob(digest, size, blob)
 }
+
+func isDigest(str string) bool {
+	return strings.Contains(str, ":")
+}

src/replication/ng/adapter/image_registry_test.go

@@ -0,0 +1,46 @@
+// Copyright Project Harbor Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package adapter
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+// TODO add UT
+
+func TestIsDigest(t *testing.T) {
+	cases := []struct {
+		str      string
+		isDigest bool
+	}{
+		{
+			str:      "",
+			isDigest: false,
+		},
+		{
+			str:      "latest",
+			isDigest: false,
+		},
+		{
+			str:      "sha256:fea8895f450959fa676bcc1df0611ea93823a735a01205fd8622846041d0c7cf",
+			isDigest: true,
+		},
+	}
+	for _, c := range cases {
+		assert.Equal(t, c.isDigest, isDigest(c.str))
+	}
+}

src/replication/ng/transfer/repository/transfer.go

@@ -278,10 +278,9 @@ func (t *transfer) delete(repo *repository) error {
 		return jobStoppedErr
 	}
 
-	digests := map[string]struct{}{}
 	repository := repo.repository
 	for _, tag := range repo.tags {
-		exist, digest, err := t.dst.ManifestExist(repository, tag)
+		exist, _, err := t.dst.ManifestExist(repository, tag)
 		if err != nil {
 			t.logger.Errorf("failed to check the existence of the manifest of image %s:%s on the destination registry: %v",
 				repository, tag, err)
@@ -292,18 +291,12 @@ func (t *transfer) delete(repo *repository) error {
 				repository, tag)
 			continue
 		}
-		t.logger.Infof("the digest of image %s:%s is %s", repository, tag, digest)
-		if _, exist := digests[digest]; !exist {
-			digests[digest] = struct{}{}
-		}
-	}
-	for digest := range digests {
-		if err := t.dst.DeleteManifest(repository, digest); err != nil {
+		if err := t.dst.DeleteManifest(repository, tag); err != nil {
 			t.logger.Errorf("failed to delete the manifest of image %s:%s on the destination registry: %v",
-				repository, digest, err)
+				repository, tag, err)
 			return err
 		}
-		t.logger.Infof("the manifest of image %s:%s is deleted", repository, digest)
+		t.logger.Infof("the manifest of image %s:%s is deleted", repository, tag)
 	}
 	return nil
 }