zfs

package
v1.3.0 Latest Latest
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 Go to latest Published: Jan 7, 2021 License: Apache-2.0 Imports: 20 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// OpenEBSNamespaceKey is the environment variable to get openebs namespace
	//
	// This environment variable is set via kubernetes downward API
	OpenEBSNamespaceKey string = "OPENEBS_NAMESPACE"
	// GoogleAnalyticsKey This environment variable is set via env
	GoogleAnalyticsKey string = "OPENEBS_IO_ENABLE_ANALYTICS"
	// ZFSFinalizer for the ZfsVolume CR
	ZFSFinalizer string = "zfs.openebs.io/finalizer"
	// ZFSVolKey for the ZfsSnapshot CR to store Persistence Volume name
	ZFSVolKey string = "openebs.io/persistent-volume"
	// ZFSSrcVolKey key for the source Volume name
	ZFSSrcVolKey string = "openebs.io/source-volume"
	// PoolNameKey is key for ZFS pool name
	PoolNameKey string = "openebs.io/poolname"
	// ZFSNodeKey will be used to insert Label in ZfsVolume CR
	ZFSNodeKey string = "kubernetes.io/nodename"
	// ZFSTopologyKey is supported topology key for the zfs driver
	ZFSTopologyKey string = "openebs.io/nodename"
	// ZFSStatusPending shows object has not handled yet
	ZFSStatusPending string = "Pending"
	// ZFSStatusFailed shows object operation has failed
	ZFSStatusFailed string = "Failed"
	// ZFSStatusReady shows object has been processed
	ZFSStatusReady string = "Ready"
)
View Source 
const (
	ZFSDevPath = "/dev/zvol/"
	FSTypeZFS  = "zfs"
)

zfs related constants

View Source 
const (
	ZFSVolCmd      = "zfs"
	ZFSCreateArg   = "create"
	ZFSCloneArg    = "clone"
	ZFSDestroyArg  = "destroy"
	ZFSSetArg      = "set"
	ZFSGetArg      = "get"
	ZFSListArg     = "list"
	ZFSSnapshotArg = "snapshot"
	ZFSSendArg     = "send"
	ZFSRecvArg     = "recv"
)

zfs command related constants

View Source 
const (
	VolTypeDataset = "DATASET"
	VolTypeZVol    = "ZVOL"
)

constants to define volume type

Variables

View Source 
var (
	// OpenEBSNamespace is openebs system namespace
	OpenEBSNamespace string

	// NodeID is the NodeID of the node on which the pod is present
	NodeID string

	// GoogleAnalyticsEnabled should send google analytics or not
	GoogleAnalyticsEnabled string
)

Functions

func CreateBackup added in v1.0.0 

func CreateBackup(bkp *apis.ZFSBackup) error

CreateBackup creates the backup

func CreateClone 

func CreateClone(vol *apis.ZFSVolume) error

CreateClone creates clone for the zvol/dataset as per info provided in ZFSVolume object

func CreateRestore added in v1.0.0 

func CreateRestore(rstr *apis.ZFSRestore) error

CreateRestore creates the restore

func CreateSnapshot 

func CreateSnapshot(snap *apis.ZFSSnapshot) error

CreateSnapshot creates the zfs volume snapshot

func CreateVolume 

func CreateVolume(vol *apis.ZFSVolume) error

CreateVolume creates the zvol/dataset as per info provided in ZFSVolume object

func DeleteSnapshot 

func DeleteSnapshot(snapname string) (err error)

DeleteSnapshot deletes the corresponding ZFSSnapshot CR

func DeleteVolume 

func DeleteVolume(volumeID string) (err error)

DeleteVolume deletes the corresponding ZFSVol CR

func DestoryBackup added in v1.0.0 

func DestoryBackup(bkp *apis.ZFSBackup) error

DestoryBackup deletes the snapshot created

func DestroySnapshot 

func DestroySnapshot(snap *apis.ZFSSnapshot) error

DestroySnapshot deletes the zfs volume snapshot

func DestroyVolume 

func DestroyVolume(vol *apis.ZFSVolume) error

DestroyVolume deletes the zfs volume

func FormatAndMountZvol 

func FormatAndMountZvol(devicePath string, mountInfo *MountInfo) error

FormatAndMountZvol formats and mounts the created volume to the desired mount path

func GetVolList 

func GetVolList(volumeID string) (*apis.ZFSVolumeList, error)

GetVolList fetches the current Published Volume list

func GetVolume 

func GetVolume(volumeID string) (*apis.ZFSVolume, error)

GetVolume the corresponding ZFSVolume CR

func GetVolumeDevPath 

func GetVolumeDevPath(vol *apis.ZFSVolume) (string, error)

GetVolumeDevPath returns devpath for the given volume

func GetVolumeProperty 

func GetVolumeProperty(vol *apis.ZFSVolume, prop string) (string, error)

GetVolumeProperty gets zfs properties for the volume

func GetVolumeType 

func GetVolumeType(fstype string) string

GetVolumeType returns the volume type whether it is a zvol or dataset

func GetZFSSnapshot 

func GetZFSSnapshot(snapID string) (*apis.ZFSSnapshot, error)

GetZFSSnapshot fetches the given ZFSSnapshot

func GetZFSSnapshotStatus 

func GetZFSSnapshotStatus(snapID string) (string, error)

GetZFSSnapshotStatus returns ZFSSnapshot status

func GetZFSVolume 

func GetZFSVolume(volumeID string) (*apis.ZFSVolume, error)

GetZFSVolume fetches the given ZFSVolume

func GetZFSVolumeState added in v0.8.0 

func GetZFSVolumeState(volID string) (string, string, error)

GetZFSVolumeState returns ZFSVolume OwnerNode and State for the given volume. CreateVolume request may call it again and again until volume is "Ready".

func MountBlock 

func MountBlock(vol *apis.ZFSVolume, mountinfo *MountInfo) error

MountBlock mounts the block disk to the specified path

func MountDataset 

func MountDataset(vol *apis.ZFSVolume, mount *MountInfo) error

MountDataset mounts the zfs dataset to the specified path

func MountFilesystem 

func MountFilesystem(vol *apis.ZFSVolume, mount *MountInfo) error

MountFilesystem mounts the disk to the specified path

func MountZFSDataset 

func MountZFSDataset(vol *apis.ZFSVolume, mountpath string) error

MountZFSDataset mounts the dataset to the given mountpoint

func MountZvol 

func MountZvol(vol *apis.ZFSVolume, mount *MountInfo) error

MountZvol mounts the disk to the specified path

func PropertyChanged 

func PropertyChanged(oldVol *apis.ZFSVolume, newVol *apis.ZFSVolume) bool

PropertyChanged return whether volume property is changed

func ProvisionSnapshot 

func ProvisionSnapshot(
	snap *apis.ZFSSnapshot,
) error

ProvisionSnapshot creates a ZFSSnapshot CR, watcher for zvc is present in CSI agent

func ProvisionVolume 

func ProvisionVolume(
	vol *apis.ZFSVolume,
) error

ProvisionVolume creates a ZFSVolume(zv) CR, watcher for zvc is present in CSI agent

func RemoveBkpFinalizer added in v1.0.0 

func RemoveBkpFinalizer(bkp *apis.ZFSBackup) error

RemoveBkpFinalizer removes finalizer from ZFSBackup CR

func RemoveSnapFinalizer 

func RemoveSnapFinalizer(snap *apis.ZFSSnapshot) error

RemoveSnapFinalizer adds finalizer to ZFSSnapshot CR

func RemoveZvolFinalizer 

func RemoveZvolFinalizer(vol *apis.ZFSVolume) error

RemoveZvolFinalizer adds finalizer to ZFSVolume CR

func ResizeExtn 

func ResizeExtn(devpath string) error

ResizeExtn can be used to run a resize command on the ext2/3/4 filesystem to expand the filesystem to the actual size of the device

func ResizeVolume 

func ResizeVolume(vol *apis.ZFSVolume, newSize int64) error

ResizeVolume resizes the zfs volume

func ResizeXFS 

func ResizeXFS(path string) error

ResizeXFS can be used to run a resize command on the xfs filesystem to expand the filesystem to the actual size of the device

func ResizeZFSVolume 

func ResizeZFSVolume(vol *apis.ZFSVolume, mountpath string) error

ResizeZFSVolume resize volume

func SetDatasetLegacyMount added in v0.8.0 

func SetDatasetLegacyMount(vol *apis.ZFSVolume) error

SetDatasetLegacyMount sets the dataset mountpoint to legacy if not set

func SetDatasetMountProp 

func SetDatasetMountProp(volume string, mountpath string) error

SetDatasetMountProp sets mountpoint for the volume

func SetVolumeProp 

func SetVolumeProp(vol *apis.ZFSVolume) error

SetVolumeProp sets the volume property

func UmountVolume 

func UmountVolume(vol *apis.ZFSVolume, targetPath string,
) error

UmountVolume unmounts the volume and the corresponding mount path is removed

func UpdateBkpInfo added in v1.0.0 

func UpdateBkpInfo(bkp *apis.ZFSBackup, status apis.ZFSBackupStatus) error

UpdateBkpInfo updates the backup info with the status

func UpdateRestoreInfo added in v1.0.0 

func UpdateRestoreInfo(rstr *apis.ZFSRestore, status apis.ZFSRestoreStatus) error

UpdateRestoreInfo updates the rstr info with the status

func UpdateSnapInfo 

func UpdateSnapInfo(snap *apis.ZFSSnapshot) error

UpdateSnapInfo updates ZFSSnapshot CR with node id and finalizer

func UpdateZvolInfo 

func UpdateZvolInfo(vol *apis.ZFSVolume) error

UpdateZvolInfo updates ZFSVolume CR with node id and finalizer

Types

type MountInfo added in v1.1.0 

type MountInfo struct {
	// FSType of a volume will specify the
	// format type - ext4(default), xfs of PV
	FSType string `json:"fsType"`

	// AccessMode of a volume will hold the
	// access mode of the volume
	AccessModes []string `json:"accessModes"`

	// MountPath of the volume will hold the
	// path on which the volume is mounted
	// on that node
	MountPath string `json:"mountPath"`

	// MountOptions specifies the options with
	// which mount needs to be attempted
	MountOptions []string `json:"mountOptions"`
}

MountInfo contains the volume related info for all types of volumes in ZFSVolume

Source Files

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