Documentation
¶
Index ¶
- func New() resource.Driver
- type T
- func (t *T) Boot(ctx context.Context) error
- func (t *T) ClaimedDevices(ctx context.Context) device.L
- func (t *T) CurrentFree(ctx context.Context) (int64, error)
- func (t *T) CurrentSize(ctx context.Context) (int64, error)
- func (t *T) DriverID() driver.ID
- func (t *T) ExposedDevices(ctx context.Context) device.L
- func (t *T) ImportDevices(ctx context.Context) error
- func (t *T) Info(ctx context.Context) (resource.InfoKeys, error)
- func (t *T) Label(_ context.Context) string
- func (t *T) Manifest() *manifest.T
- func (t *T) ProvisionAsFollower(ctx context.Context) error
- func (t *T) ProvisionAsLeader(ctx context.Context) error
- func (t *T) Provisioned(ctx context.Context) (provisioned.T, error)
- func (t *T) ReservableDevices(ctx context.Context) device.L
- func (t *T) Resize(ctx context.Context, to int64) error
- func (t *T) ResizePlan(ctx context.Context, to int64) (int64, error)
- func (t *T) ResizeProvides(_ context.Context) string
- func (t *T) ResizeSpansBelow() bool
- func (t *T) Start(ctx context.Context) error
- func (t *T) Status(ctx context.Context) status.T
- func (t *T) Stop(ctx context.Context) error
- func (t *T) SubDevices(ctx context.Context) device.L
- func (t *T) UnprovisionAsLeader(ctx context.Context) error
- func (t *T) VolumeGroupName() string
- type VGDriver
- type VGDriverImportDeviceser
- type VGDriverProvisioner
- type VGDriverResizer
- type VGDriverUnprovisioner
- type VGDriverWiper
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
Types ¶
type T ¶
type T struct {
resdisk.T
Path naming.Path
VGName string `json:"vg"`
Size string `json:"size"`
Options []string `json:"options"`
PVs []string `json:"pvs"`
}
func (*T) CurrentFree ¶
CurrentFree implements resource.Freer.
func (*T) CurrentSize ¶
CurrentSize implements resource.Sizer.
func (*T) Label ¶
Label implements Label from resource.Driver interface, it returns a formatted short description of the Resource
func (*T) Provisioned ¶
func (*T) Resize ¶
Resize implements resource.Resizer.
Growing takes the whole device, which the plan made sure is large enough. Shrinking sets the physical volume size explicitly, which lvm refuses if extents beyond it are in use.
func (*T) ResizePlan ¶
ResizePlan implements resource.Resizer.
A volume group offers its logical volumes less than its physical volumes hold, by the metadata lvm keeps and by what does not fill a whole extent. What it asks of the device below is the size wanted plus what it is short today, which over-asks by at most one extent and never under-asks.
func (*T) ResizeProvides ¶
ResizeProvides implements resource.ResizeProvides, so the logical volumes of this group find it: no device leads from one to the other.
func (*T) ResizeSpansBelow ¶
ResizeSpansBelow implements resource.ResizeSpansBelow.
A volume group takes up the physical volume it is created on, keeping a cut of it for its own metadata and for what does not fill a whole extent.
func (*T) VolumeGroupName ¶
VolumeGroupName is the name of the volume group, by which a check of its usage is attributed to the object.
type VGDriver ¶
type VGDriver interface {
Activate(context.Context) error
Deactivate(context.Context) error
IsActive(context.Context) (bool, error)
Exists(context.Context) (bool, error)
FQN() string
Devices(context.Context) (device.L, error)
PVs(context.Context) (device.L, error)
ActiveLVDevices() (device.L, error)
DriverName() string
AddTag(context.Context, string) error
DelTag(context.Context, string) error
HasTag(context.Context, string) (bool, error)
Tags(context.Context) ([]string, error)
GetLVSummary(context.Context) (lvm2.LVSummary, error)
NeedActivate(lvm2.LVSummary) bool
}
Source Files