github.com/uber/kraken@v0.1.4/lib/dockerregistry/transfer/transferer.go (about)

     1  // Copyright (c) 2016-2019 Uber Technologies, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  package transfer
    15  
    16  import (
    17  	"github.com/uber/kraken/core"
    18  	"github.com/uber/kraken/lib/store"
    19  )
    20  
    21  // ImageTransferer defines an interface that transfers images
    22  type ImageTransferer interface {
    23  	Stat(namespace string, d core.Digest) (*core.BlobInfo, error)
    24  	Download(namespace string, d core.Digest) (store.FileReader, error)
    25  	Upload(namespace string, d core.Digest, blob store.FileReader) error
    26  
    27  	GetTag(tag string) (core.Digest, error)
    28  	PutTag(tag string, d core.Digest) error
    29  	ListTags(prefix string) ([]string, error)
    30  }