mirror of https://github.com/ceph/go-ceph
138 lines
4.2 KiB
Go
138 lines
4.2 KiB
Go
package admin
|
|
|
|
// this is the internal type used to create JSON for ceph.
|
|
// See SubVolumeOptions for the type that users of the library
|
|
// interact with.
|
|
// note that the ceph json takes mode as a string.
|
|
type subVolumeFields struct {
|
|
Prefix string `json:"prefix"`
|
|
Format string `json:"format"`
|
|
VolName string `json:"vol_name"`
|
|
GroupName string `json:"group_name,omitempty"`
|
|
SubName string `json:"sub_name"`
|
|
Size ByteCount `json:"size,omitempty"`
|
|
Uid int `json:"uid,omitempty"`
|
|
Gid int `json:"gid,omitempty"`
|
|
Mode string `json:"mode,omitempty"`
|
|
PoolLayout string `json:"pool_layout,omitempty"`
|
|
NamespaceIsolated bool `json:"namespace_isolated"`
|
|
}
|
|
|
|
// SubVolumeOptions are used to specify optional, non-identifying, values
|
|
// to be used when creating a new subvolume.
|
|
type SubVolumeOptions struct {
|
|
Size ByteCount
|
|
Uid int
|
|
Gid int
|
|
Mode int
|
|
PoolLayout string
|
|
NamespaceIsolated bool
|
|
}
|
|
|
|
func (s *SubVolumeOptions) toFields(v, g, n string) *subVolumeFields {
|
|
return &subVolumeFields{
|
|
Prefix: "fs subvolume create",
|
|
Format: "json",
|
|
VolName: v,
|
|
GroupName: g,
|
|
SubName: n,
|
|
Size: s.Size,
|
|
Uid: s.Uid,
|
|
Gid: s.Gid,
|
|
Mode: modeString(s.Mode, false),
|
|
PoolLayout: s.PoolLayout,
|
|
NamespaceIsolated: s.NamespaceIsolated,
|
|
}
|
|
}
|
|
|
|
// NoGroup should be used when an optional subvolume group name is not
|
|
// specified.
|
|
const NoGroup = ""
|
|
|
|
// CreateSubVolume sends a request to create a CephFS subvolume in a volume,
|
|
// belonging to an optional subvolume group.
|
|
func (fsa *FSAdmin) CreateSubVolume(volume, group, name string, o *SubVolumeOptions) error {
|
|
if o == nil {
|
|
o = &SubVolumeOptions{}
|
|
}
|
|
f := o.toFields(volume, group, name)
|
|
return checkEmptyResponseExpected(fsa.marshalMgrCommand(f))
|
|
}
|
|
|
|
// command:
|
|
// fs subvolume ls <vol_name> <group_name>
|
|
|
|
// ListSubVolumes returns a list of subvolumes belonging to the volume and
|
|
// optional subvolume group.
|
|
func (fsa *FSAdmin) ListSubVolumes(volume, group string) ([]string, error) {
|
|
m := map[string]string{
|
|
"prefix": "fs subvolume ls",
|
|
"vol_name": volume,
|
|
"format": "json",
|
|
}
|
|
if group != NoGroup {
|
|
m["group_name"] = group
|
|
}
|
|
return parseListNames(fsa.marshalMgrCommand(m))
|
|
}
|
|
|
|
// command:
|
|
// fs subvolume rm <vol_name> <sub_name> <group_name> <force>
|
|
|
|
// RemoveSubVolume will delete a CephFS subvolume in a volume and optional
|
|
// subvolume group.
|
|
func (fsa *FSAdmin) RemoveSubVolume(volume, group, name string) error {
|
|
m := map[string]string{
|
|
"prefix": "fs subvolume rm",
|
|
"vol_name": volume,
|
|
"sub_name": name,
|
|
"format": "json",
|
|
}
|
|
if group != NoGroup {
|
|
m["group_name"] = group
|
|
}
|
|
return checkEmptyResponseExpected(fsa.marshalMgrCommand(m))
|
|
}
|
|
|
|
type subVolumeResizeFields struct {
|
|
Prefix string `json:"prefix"`
|
|
Format string `json:"format"`
|
|
VolName string `json:"vol_name"`
|
|
GroupName string `json:"group_name,omitempty"`
|
|
SubName string `json:"sub_name"`
|
|
NewSize string `json:"new_size"`
|
|
NoShrink bool `json:"no_shrink"`
|
|
}
|
|
|
|
// SubVolumeResizeResult reports the size values returned by the
|
|
// ResizeSubVolume function, as reported by Ceph.
|
|
type SubVolumeResizeResult struct {
|
|
BytesUsed ByteCount `json:"bytes_used"`
|
|
BytesQuota ByteCount `json:"bytes_quota"`
|
|
BytesPercent string `json:"bytes_pcent"`
|
|
}
|
|
|
|
// ResizeSubVolume will resize a CephFS subvolume. The newSize value may be a
|
|
// ByteCount or the special Infinite constant. Setting noShrink to true will
|
|
// prevent reducing the size of the volume below the current used size.
|
|
func (fsa *FSAdmin) ResizeSubVolume(
|
|
volume, group, name string,
|
|
newSize NewSize, noShrink bool) (*SubVolumeResizeResult, error) {
|
|
|
|
f := &subVolumeResizeFields{
|
|
Prefix: "fs subvolume resize",
|
|
Format: "json",
|
|
VolName: volume,
|
|
GroupName: group,
|
|
SubName: name,
|
|
NewSize: newSize.newSizeValue(),
|
|
NoShrink: noShrink,
|
|
}
|
|
var result []*SubVolumeResizeResult
|
|
r, s, err := fsa.marshalMgrCommand(f)
|
|
if err := unmarshalResponseJSON(r, s, err, &result); err != nil {
|
|
return nil, err
|
|
}
|
|
return result[0], nil
|
|
}
|