kubernetes/pkg/volume/azure_dd/azure_common_windows.go
Davanum Srinivas 954996e231
Move from glog to klog
- Move from the old github.com/golang/glog to k8s.io/klog
- klog as explicit InitFlags() so we add them as necessary
- we update the other repositories that we vendor that made a similar
change from glog to klog
  * github.com/kubernetes/repo-infra
  * k8s.io/gengo/
  * k8s.io/kube-openapi/
  * github.com/google/cadvisor
- Entirely remove all references to glog
- Fix some tests by explicit InitFlags in their init() methods

Change-Id: I92db545ff36fcec83afe98f550c9e630098b3135
2018-11-10 07:50:31 -05:00

119 lines
3.8 KiB
Go

// +build windows
/*
Copyright 2017 The Kubernetes 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 azure_dd
import (
"encoding/json"
"fmt"
"strconv"
"strings"
"k8s.io/klog"
"k8s.io/kubernetes/pkg/util/mount"
)
func scsiHostRescan(io ioHandler, exec mount.Exec) {
cmd := "Update-HostStorageCache"
output, err := exec.Run("powershell", "/c", cmd)
if err != nil {
klog.Errorf("Update-HostStorageCache failed in scsiHostRescan, error: %v, output: %q", err, string(output))
}
}
// search Windows disk number by LUN
func findDiskByLun(lun int, iohandler ioHandler, exec mount.Exec) (string, error) {
cmd := `Get-Disk | select number, location | ConvertTo-Json`
output, err := exec.Run("powershell", "/c", cmd)
if err != nil {
klog.Errorf("Get-Disk failed in findDiskByLun, error: %v, output: %q", err, string(output))
return "", err
}
if len(output) < 10 {
return "", fmt.Errorf("Get-Disk output is too short, output: %q", string(output))
}
var data []map[string]interface{}
if err = json.Unmarshal(output, &data); err != nil {
klog.Errorf("Get-Disk output is not a json array, output: %q", string(output))
return "", err
}
for _, v := range data {
if jsonLocation, ok := v["location"]; ok {
if location, ok := jsonLocation.(string); ok {
if !strings.Contains(location, " LUN ") {
continue
}
arr := strings.Split(location, " ")
arrLen := len(arr)
if arrLen < 3 {
klog.Warningf("unexpected json structure from Get-Disk, location: %q", jsonLocation)
continue
}
klog.V(4).Infof("found a disk, locatin: %q, lun: %q", location, arr[arrLen-1])
//last element of location field is LUN number, e.g.
// "location": "Integrated : Adapter 3 : Port 0 : Target 0 : LUN 1"
l, err := strconv.Atoi(arr[arrLen-1])
if err != nil {
klog.Warningf("cannot parse element from data structure, location: %q, element: %q", location, arr[arrLen-1])
continue
}
if l == lun {
klog.V(4).Infof("found a disk and lun, locatin: %q, lun: %d", location, lun)
if d, ok := v["number"]; ok {
if diskNum, ok := d.(float64); ok {
klog.V(2).Infof("azureDisk Mount: got disk number(%d) by LUN(%d)", int(diskNum), lun)
return strconv.Itoa(int(diskNum)), nil
}
klog.Warningf("LUN(%d) found, but could not get disk number(%q), location: %q", lun, d, location)
}
return "", fmt.Errorf("LUN(%d) found, but could not get disk number, location: %q", lun, location)
}
}
}
}
return "", nil
}
func formatIfNotFormatted(disk string, fstype string, exec mount.Exec) {
if err := mount.ValidateDiskNumber(disk); err != nil {
klog.Errorf("azureDisk Mount: formatIfNotFormatted failed, err: %v\n", err)
return
}
if len(fstype) == 0 {
// Use 'NTFS' as the default
fstype = "NTFS"
}
cmd := fmt.Sprintf("Get-Disk -Number %s | Where partitionstyle -eq 'raw' | Initialize-Disk -PartitionStyle MBR -PassThru", disk)
cmd += fmt.Sprintf(" | New-Partition -AssignDriveLetter -UseMaximumSize | Format-Volume -FileSystem %s -Confirm:$false", fstype)
output, err := exec.Run("powershell", "/c", cmd)
if err != nil {
klog.Errorf("azureDisk Mount: Get-Disk failed, error: %v, output: %q", err, string(output))
} else {
klog.Infof("azureDisk Mount: Disk successfully formatted, disk: %q, fstype: %q\n", disk, fstype)
}
}