github.com/kaydxh/golang@v0.0.131/pkg/storage/mount/mount.go (about)

     1  /*
     2   *Copyright (c) 2022, kaydxh
     3   *
     4   *Permission is hereby granted, free of charge, to any person obtaining a copy
     5   *of this software and associated documentation files (the "Software"), to deal
     6   *in the Software without restriction, including without limitation the rights
     7   *to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     8   *copies of the Software, and to permit persons to whom the Software is
     9   *furnished to do so, subject to the following conditions:
    10   *
    11   *The above copyright notice and this permission notice shall be included in all
    12   *copies or substantial portions of the Software.
    13   *
    14   *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    15   *IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    16   *FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    17   *AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    18   *LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    19   *OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    20   *SOFTWARE.
    21   */
    22  package mount
    23  
    24  import (
    25  	"fmt"
    26  	"os"
    27  	"path/filepath"
    28  	"time"
    29  
    30  	io_ "github.com/kaydxh/golang/go/io"
    31  
    32  	os_ "github.com/kaydxh/golang/go/os"
    33  	exec_ "github.com/kaydxh/golang/go/os/exec"
    34  )
    35  
    36  const (
    37  	mountLabelFileName = "mount-label-file-75248"
    38  )
    39  
    40  func MountCeph(
    41  	prefixMountPath, userName, address, keyring, workDir string, forceMount bool, timeout int,
    42  ) (mountPoint string, err error) {
    43  	keyringFilePath, err := genCephKeyringConfFile(prefixMountPath, userName, keyring)
    44  	if err != nil {
    45  		return "", err
    46  	}
    47  
    48  	workDir = filepath.Join("/", workDir)
    49  
    50  	cmd := fmt.Sprintf(
    51  		`ceph-fuse -m %s -k %s -n client.%s -o rw.nonempty -r %s %s`,
    52  		address,
    53  		keyringFilePath,
    54  		userName,
    55  		workDir,
    56  		mountPoint,
    57  	)
    58  	return doMountCmd(prefixMountPath, workDir, cmd, forceMount, timeout)
    59  }
    60  
    61  func MountCfs(
    62  	prefixMountPath, address, workDir string,
    63  	forceMount bool,
    64  	timeout int,
    65  ) (mountPoint string, err error) {
    66  
    67  	mountPoint = filepath.Join(prefixMountPath, workDir)
    68  	workDir = filepath.Join("/", workDir)
    69  
    70  	cmd := fmt.Sprintf(
    71  		`mount -t nfs -o vers=4 %s:%s %s`,
    72  		address,
    73  		workDir,
    74  		mountPoint,
    75  	)
    76  	return doMountCmd(prefixMountPath, workDir, cmd, forceMount, timeout)
    77  }
    78  
    79  func doMountCmd(
    80  	prefixMountPath, workDir, cmd string,
    81  	forceMount bool,
    82  	timeout int,
    83  ) (mountPoint string, err error) {
    84  
    85  	mountPoint = filepath.Join("/", prefixMountPath, workDir)
    86  	if !forceMount {
    87  		labelFilePath := filepath.Join(mountPoint, mountLabelFileName)
    88  		exist, err := os_.PathExist(labelFilePath)
    89  		if err == nil && exist {
    90  			return mountPoint, nil
    91  		}
    92  	}
    93  
    94  	err = os.MkdirAll(mountPoint, 0755)
    95  	if err != nil {
    96  		return "", err
    97  	}
    98  
    99  	_, _, err = exec_.Exec(time.Duration(timeout), cmd)
   100  	if err != nil {
   101  		return "", err
   102  	}
   103  
   104  	return mountPoint, nil
   105  }
   106  
   107  func genCephKeyringConfFile(prefixMountPath, userName, keyring string) (string, error) {
   108  	keyringFileName := userName + ".keyring"
   109  	keyringFilePath := filepath.Join(prefixMountPath, keyringFileName)
   110  
   111  	line1 := "[client." + userName + "]"
   112  	line2 := fmt.Sprintf("    key =  %s\n", keyring)
   113  	lines := []string{line1, line2}
   114  
   115  	err := io_.WriteFileLines(keyringFilePath, lines, false)
   116  	if err != nil {
   117  		return "", err
   118  	}
   119  
   120  	return keyringFilePath, nil
   121  }