devicemapper

Documentation

Index

• func CreateNewDevice(containerId, devPrefix, rootPath string) error
• func CreatePool(dm *DeviceMapper) error
• func CreateVolume(poolName, volName, dev_id, mkfs string, size int, restore bool) error
• func DMCleanup(dm *DeviceMapper) error
• func DeleteVolume(dm *DeviceMapper, dev_id int) error
• func InjectFile(src io.Reader, containerId, devPrefix, target, basePath string, ...) error
• func MountContainerToSharedDir(containerId, sharedDir, devPrefix string) (string, error)
• func ProbeFsType(device string) (string, error)
• func UnmapVolume(deviceFullPath string) error
• type DeviceMapper

Functions

func CreateNewDevice

func CreateNewDevice(containerId, devPrefix, rootPath string) error

func CreatePool

func CreatePool(dm *DeviceMapper) error

func CreateVolume

func CreateVolume(poolName, volName, dev_id, mkfs string, size int, restore bool) error

func DMCleanup

func DMCleanup(dm *DeviceMapper) error

Delete the pool which is created in 'Init' function

func DeleteVolume

func DeleteVolume(dm *DeviceMapper, dev_id int) error

func InjectFile

func InjectFile(src io.Reader, containerId, devPrefix, target, basePath string, perm, uid, gid int) error

func MountContainerToSharedDir

func MountContainerToSharedDir(containerId, sharedDir, devPrefix string) (string, error)

For device mapper, we do not need to mount the container to sharedDir. All of we need to provide the block device name of container.

func ProbeFsType

func ProbeFsType(device string) (string, error)

func UnmapVolume

func UnmapVolume(deviceFullPath string) error

Types

type DeviceMapper

type DeviceMapper struct {
	Datafile         string
	Metadatafile     string
	DataLoopFile     string
	MetadataLoopFile string
	Size             int
	PoolName         string
}