volume

package
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Published: May 15, 2024 License: Apache-2.0 Imports: 2 Imported by: 0

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Constants

View Source
const (
	LocalScope  = "local"
	GlobalScope = "global"
)

Scopes define if a volume has is cluster-wide (global) or local only. Scopes are returned by the volume driver when it is queried for capabilities and then set on a volume

View Source
const DefaultDriverName = "local"

DefaultDriverName is the driver name used for the driver implemented in the local package.

Variables

This section is empty.

Functions

This section is empty.

Types

type Capability added in v1.12.0

type Capability struct {
	// Scope is the scope of the driver, `global` or `local`
	// A `global` scope indicates that the driver manages volumes across the cluster
	// A `local` scope indicates that the driver only manages volumes resources local to the host
	// Scope is declared by the driver
	Scope string
}

Capability defines a set of capabilities that a driver is able to handle.

type DetailedVolume added in v1.13.0

type DetailedVolume interface {
	Labels() map[string]string
	Options() map[string]string
	Scope() string
	Volume
}

DetailedVolume wraps a Volume with user-defined labels, options, and cluster scope (e.g., `local` or `global`)

type Driver

type Driver interface {
	// Name returns the name of the volume driver.
	Name() string
	// Create makes a new volume with the given name.
	Create(name string, opts map[string]string) (Volume, error)
	// Remove deletes the volume.
	Remove(vol Volume) (err error)
	// List lists all the volumes the driver has
	List() ([]Volume, error)
	// Get retrieves the volume with the requested name
	Get(name string) (Volume, error)
	// Scope returns the scope of the driver (e.g. `global` or `local`).
	// Scope determines how the driver is handled at a cluster level
	Scope() string
}

Driver is for creating and removing volumes.

type LiveRestorer

type LiveRestorer interface {
	// LiveRestoreVolume allows a volume driver which implements this interface to restore any necessary resources (such as reference counting)
	// This is called only after the daemon is restarted with live-restored containers
	// It is called once per live-restored container.
	LiveRestoreVolume(_ context.Context, ref string) error
}

LiveRestorer is an optional interface that can be implemented by a volume driver It is used to restore any resources that are necessary for a volume to be used by a live-restored container

type Volume

type Volume interface {
	// Name returns the name of the volume
	Name() string
	// DriverName returns the name of the driver which owns this volume.
	DriverName() string
	// Path returns the absolute path to the volume.
	Path() string
	// Mount mounts the volume and returns the absolute path to
	// where it can be consumed.
	Mount(id string) (string, error)
	// Unmount unmounts the volume when it is no longer in use.
	Unmount(id string) error
	// CreatedAt returns Volume Creation time
	CreatedAt() (time.Time, error)
	// Status returns low-level status information about a volume
	Status() map[string]interface{}
}

Volume is a place to store data. It is backed by a specific driver, and can be mounted.

Directories

Path Synopsis
Package local provides the default implementation for volumes.
Package local provides the default implementation for volumes.

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