本文整理汇总了Golang中k8s/io/kubernetes/pkg/util/mount.Interface.DeviceOpened方法的典型用法代码示例。如果您正苦于以下问题：Golang Interface.DeviceOpened方法的具体用法？Golang Interface.DeviceOpened怎么用？Golang Interface.DeviceOpened使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类k8s/io/kubernetes/pkg/util/mount.Interface的用法示例。
在下文中一共展示了Interface.DeviceOpened方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: generateUnmountDeviceFunc
func (oe *operationExecutor) generateUnmountDeviceFunc(
deviceToDetach AttachedVolume,
actualStateOfWorld ActualStateOfWorldMounterUpdater,
mounter mount.Interface) (func() error, error) {
// Get attacher plugin
attachableVolumePlugin, err :=
oe.volumePluginMgr.FindAttachablePluginBySpec(deviceToDetach.VolumeSpec)
if err != nil || attachableVolumePlugin == nil {
return nil, fmt.Errorf(
"UnmountDevice.FindAttachablePluginBySpec failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
err)
}
volumeDetacher, err := attachableVolumePlugin.NewDetacher()
if err != nil {
return nil, fmt.Errorf(
"UnmountDevice.NewDetacher failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
err)
}
volumeAttacher, err := attachableVolumePlugin.NewAttacher()
if err != nil {
return nil, fmt.Errorf(
"UnmountDevice.NewAttacher failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
err)
}
return func() error {
deviceMountPath, err :=
volumeAttacher.GetDeviceMountPath(deviceToDetach.VolumeSpec)
if err != nil {
// On failure, return error. Caller will log and retry.
return fmt.Errorf(
"GetDeviceMountPath failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
err)
}
refs, err := attachableVolumePlugin.GetDeviceMountRefs(deviceMountPath)
if err != nil || len(refs) > 0 {
if err == nil {
err = fmt.Errorf("The device mount path %q is still mounted by other references %v", deviceMountPath, refs)
}
return fmt.Errorf(
"GetDeviceMountRefs check failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
err)
}
// Execute unmount
unmountDeviceErr := volumeDetacher.UnmountDevice(deviceMountPath)
if unmountDeviceErr != nil {
// On failure, return error. Caller will log and retry.
return fmt.Errorf(
"UnmountDevice failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
unmountDeviceErr)
}
// Before logging that UnmountDevice succeeded and moving on,
// use mounter.PathIsDevice to check if the path is a device,
// if so use mounter.DeviceOpened to check if the device is in use anywhere
// else on the system. Retry if it returns true.
isDevicePath, devicePathErr := mounter.PathIsDevice(deviceToDetach.DevicePath)
var deviceOpened bool
var deviceOpenedErr error
if !isDevicePath && devicePathErr == nil {
// not a device path or path doesn't exist
//TODO: refer to #36092
glog.V(3).Infof("Not checking device path %s", deviceToDetach.DevicePath)
deviceOpened = false
} else {
deviceOpened, deviceOpenedErr = mounter.DeviceOpened(deviceToDetach.DevicePath)
if deviceOpenedErr != nil {
return fmt.Errorf(
"UnmountDevice.DeviceOpened failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
deviceOpenedErr)
}
}
// The device is still in use elsewhere. Caller will log and retry.
if deviceOpened {
return fmt.Errorf(
"UnmountDevice failed for volume %q (spec.Name: %q) because the device is in use when it was no longer expected to be in use",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name())
}
glog.Infof(
"UnmountDevice succeeded for volume %q (spec.Name: %q).",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name())
//.........这里部分代码省略.........
示例2: generateUnmountDeviceFunc
func (oe *operationExecutor) generateUnmountDeviceFunc(
deviceToDetach AttachedVolume,
actualStateOfWorld ActualStateOfWorldMounterUpdater,
mounter mount.Interface) (func() error, error) {
// Get attacher plugin
attachableVolumePlugin, err :=
oe.volumePluginMgr.FindAttachablePluginBySpec(deviceToDetach.VolumeSpec)
if err != nil || attachableVolumePlugin == nil {
return nil, fmt.Errorf(
"UnmountDevice.FindAttachablePluginBySpec failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
err)
}
volumeDetacher, err := attachableVolumePlugin.NewDetacher()
if err != nil {
return nil, fmt.Errorf(
"UnmountDevice.NewDetacher failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
err)
}
volumeAttacher, err := attachableVolumePlugin.NewAttacher()
if err != nil {
return nil, fmt.Errorf(
"UnmountDevice.NewAttacher failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
err)
}
return func() error {
deviceMountPath, err :=
volumeAttacher.GetDeviceMountPath(deviceToDetach.VolumeSpec)
if err != nil {
// On failure, return error. Caller will log and retry.
return fmt.Errorf(
"GetDeviceMountPath failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
err)
}
// Execute unmount
unmountDeviceErr := volumeDetacher.UnmountDevice(deviceMountPath)
if unmountDeviceErr != nil {
// On failure, return error. Caller will log and retry.
return fmt.Errorf(
"UnmountDevice failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
unmountDeviceErr)
}
// Before logging that UnmountDevice succeeded and moving on,
// use mounter.DeviceOpened to check if the device is in use anywhere
// else on the system. Retry if it returns true.
deviceOpened, deviceOpenedErr := mounter.DeviceOpened(deviceToDetach.DevicePath)
if deviceOpenedErr != nil {
return fmt.Errorf(
"UnmountDevice.DeviceOpened failed for volume %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
deviceOpenedErr)
}
// The device is still in use elsewhere. Caller will log and retry.
if deviceOpened {
return fmt.Errorf(
"UnmountDevice failed for volume %q (spec.Name: %q) because the device is in use when it was no longer expected to be in use",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name())
}
glog.Infof(
"UnmountDevice succeeded for volume %q (spec.Name: %q).",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name())
// Update actual state of world
markDeviceUnmountedErr := actualStateOfWorld.MarkDeviceAsUnmounted(
deviceToDetach.VolumeName)
if markDeviceUnmountedErr != nil {
// On failure, return error. Caller will log and retry.
return fmt.Errorf(
"MarkDeviceAsUnmounted failed for device %q (spec.Name: %q) with: %v",
deviceToDetach.VolumeName,
deviceToDetach.VolumeSpec.Name(),
markDeviceUnmountedErr)
}
return nil
}, nil
}