github.com/alibaba/sealer@v0.8.6-0.20220430115802-37a2bdaa8173/sealer/boot/boot.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 boot
    16  
    17  import (
    18  	"fmt"
    19  	"os"
    20  
    21  	"github.com/alibaba/sealer/common"
    22  )
    23  
    24  var rootDirs = []string{
    25  	common.DefaultLogDir,
    26  	common.DefaultTmpDir,
    27  	common.DefaultImageRootDir,
    28  	common.DefaultImageMetaRootDir,
    29  	common.DefaultImageDBRootDir,
    30  	common.DefaultLayerDir,
    31  	common.DefaultLayerDBRoot}
    32  
    33  func initRootDirectory() error {
    34  	for _, dir := range rootDirs {
    35  		err := os.MkdirAll(dir, common.FileMode0755)
    36  		if err != nil {
    37  			return fmt.Errorf("failed to mkdir %s, err: %s", dir, err)
    38  		}
    39  	}
    40  	return nil
    41  }
    42  
    43  func OnBoot() error {
    44  	return initRootDirectory()
    45  }