github.com/alibaba/sealer@v0.8.6-0.20220430115802-37a2bdaa8173/pkg/image/cache.go (about)

     1  // Copyright © 2021 Alibaba Group Holding Ltd.
     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  
    15  package image
    16  
    17  import (
    18  	"fmt"
    19  
    20  	"github.com/alibaba/sealer/pkg/image/cache"
    21  	"github.com/alibaba/sealer/pkg/image/store"
    22  )
    23  
    24  func (d DefaultImageService) BuildImageCache() (Cache, error) {
    25  	ls, err := store.NewDefaultLayerStore()
    26  	if err != nil {
    27  		return nil, fmt.Errorf("failed to build image cache, err: %s", err)
    28  	}
    29  
    30  	fs, err := store.NewFSStoreBackend()
    31  	if err != nil {
    32  		return nil, fmt.Errorf("failed to init store backend for image cache, err: %s", err)
    33  	}
    34  
    35  	imageStore, err := cache.NewImageStore(fs, ls)
    36  	if err != nil {
    37  		return nil, fmt.Errorf("failed to init image store for image cache, err: %s", err)
    38  	}
    39  
    40  	return cache.NewLocalImageCache(imageStore)
    41  }