go-ceph/cephfs/admin/clone.go

112 lines
3.1 KiB
Go

// +build !luminous,!mimic
package admin
// CloneOptions are used to specify optional values to be used when creating a
// new subvolume clone.
type CloneOptions struct {
TargetGroup string
PoolLayout string
}
// CloneSubVolumeSnapshot Clones the specified snapshot from the subvolume.
//
// Similar To:
// ceph fs subvolume snapshot clone <volume> <subvolume> <snapshot> <name>
func (fsa *FSAdmin) CloneSubVolumeSnapshot(volume, group, subvolume, snapshot, name string, o *CloneOptions) error {
m := map[string]string{
"prefix": "fs subvolume snapshot clone",
"vol_name": volume,
"sub_name": subvolume,
"snap_name": snapshot,
"target_sub_name": name,
"format": "json",
}
if group != NoGroup {
m["group_name"] = group
}
if o != nil && o.TargetGroup != NoGroup {
m["target_group_name"] = group
}
if o != nil && o.PoolLayout != "" {
m["pool_layout"] = o.PoolLayout
}
return checkEmptyResponseExpected(fsa.marshalMgrCommand(m))
}
// CloneState is used to define constant values used to determine the state of
// a clone.
type CloneState string
const (
// ClonePending is the state of a pending clone.
ClonePending = CloneState("pending")
// CloneInProgress is the state of a clone in progress.
CloneInProgress = CloneState("in-progress")
// CloneComplete is the state of a complete clone.
CloneComplete = CloneState("complete")
// CloneFailed is the state of a failed clone.
CloneFailed = CloneState("failed")
)
// CloneSource contains values indicating the source of a clone.
type CloneSource struct {
Volume string `json:"volume"`
Group string `json:"group"`
SubVolume string `json:"subvolume"`
Snapshot string `json:"snapshot"`
}
// CloneStatus reports on the status of a subvolume clone.
type CloneStatus struct {
State CloneState `json:"state"`
Source CloneSource `json:"source"`
}
type cloneStatusWrapper struct {
Status CloneStatus `json:"status"`
}
func parseCloneStatus(r []byte, s string, err error) (*CloneStatus, error) {
var status cloneStatusWrapper
if err := unmarshalResponseJSON(r, s, err, &status); err != nil {
return nil, err
}
return &status.Status, nil
}
// CloneStatus returns data reporting the status of a subvolume clone.
//
// Similar To:
// ceph fs clone status <volume> --group_name=<group> <clone>
func (fsa *FSAdmin) CloneStatus(volume, group, clone string) (*CloneStatus, error) {
m := map[string]string{
"prefix": "fs clone status",
"vol_name": volume,
"clone_name": clone,
"format": "json",
}
if group != NoGroup {
m["group_name"] = group
}
return parseCloneStatus(fsa.marshalMgrCommand(m))
}
// CancelClone stops the background processes that populate a clone.
// CancelClone does not delete the clone.
//
// Similar To:
// ceph fs clone cancel <volume> --group_name=<group> <clone>
func (fsa *FSAdmin) CancelClone(volume, group, clone string) error {
m := map[string]string{
"prefix": "fs clone cancel",
"vol_name": volume,
"clone_name": clone,
"format": "json",
}
if group != NoGroup {
m["group_name"] = group
}
return checkEmptyResponseExpected(fsa.marshalMgrCommand(m))
}