k3s/vendor/github.com/Microsoft/hcsshim/layer.go

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package hcsshim
import (
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"context"
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"crypto/sha1"
"path/filepath"
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"github.com/Microsoft/go-winio/pkg/guid"
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"github.com/Microsoft/hcsshim/internal/wclayer"
)
func layerPath(info *DriverInfo, id string) string {
return filepath.Join(info.HomeDir, id)
}
func ActivateLayer(info DriverInfo, id string) error {
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return wclayer.ActivateLayer(context.Background(), layerPath(&info, id))
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}
func CreateLayer(info DriverInfo, id, parent string) error {
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return wclayer.CreateLayer(context.Background(), layerPath(&info, id), parent)
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}
// New clients should use CreateScratchLayer instead. Kept in to preserve API compatibility.
func CreateSandboxLayer(info DriverInfo, layerId, parentId string, parentLayerPaths []string) error {
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return wclayer.CreateScratchLayer(context.Background(), layerPath(&info, layerId), parentLayerPaths)
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}
func CreateScratchLayer(info DriverInfo, layerId, parentId string, parentLayerPaths []string) error {
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return wclayer.CreateScratchLayer(context.Background(), layerPath(&info, layerId), parentLayerPaths)
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}
func DeactivateLayer(info DriverInfo, id string) error {
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return wclayer.DeactivateLayer(context.Background(), layerPath(&info, id))
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}
func DestroyLayer(info DriverInfo, id string) error {
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return wclayer.DestroyLayer(context.Background(), layerPath(&info, id))
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}
// New clients should use ExpandScratchSize instead. Kept in to preserve API compatibility.
func ExpandSandboxSize(info DriverInfo, layerId string, size uint64) error {
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return wclayer.ExpandScratchSize(context.Background(), layerPath(&info, layerId), size)
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}
func ExpandScratchSize(info DriverInfo, layerId string, size uint64) error {
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return wclayer.ExpandScratchSize(context.Background(), layerPath(&info, layerId), size)
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}
func ExportLayer(info DriverInfo, layerId string, exportFolderPath string, parentLayerPaths []string) error {
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return wclayer.ExportLayer(context.Background(), layerPath(&info, layerId), exportFolderPath, parentLayerPaths)
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}
func GetLayerMountPath(info DriverInfo, id string) (string, error) {
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return wclayer.GetLayerMountPath(context.Background(), layerPath(&info, id))
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}
func GetSharedBaseImages() (imageData string, err error) {
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return wclayer.GetSharedBaseImages(context.Background())
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}
func ImportLayer(info DriverInfo, layerID string, importFolderPath string, parentLayerPaths []string) error {
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return wclayer.ImportLayer(context.Background(), layerPath(&info, layerID), importFolderPath, parentLayerPaths)
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}
func LayerExists(info DriverInfo, id string) (bool, error) {
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return wclayer.LayerExists(context.Background(), layerPath(&info, id))
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}
func PrepareLayer(info DriverInfo, layerId string, parentLayerPaths []string) error {
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return wclayer.PrepareLayer(context.Background(), layerPath(&info, layerId), parentLayerPaths)
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}
func ProcessBaseLayer(path string) error {
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return wclayer.ProcessBaseLayer(context.Background(), path)
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}
func ProcessUtilityVMImage(path string) error {
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return wclayer.ProcessUtilityVMImage(context.Background(), path)
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}
func UnprepareLayer(info DriverInfo, layerId string) error {
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return wclayer.UnprepareLayer(context.Background(), layerPath(&info, layerId))
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}
type DriverInfo struct {
Flavour int
HomeDir string
}
type GUID [16]byte
func NameToGuid(name string) (id GUID, err error) {
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g, err := wclayer.NameToGuid(context.Background(), name)
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return g.ToWindowsArray(), err
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}
func NewGUID(source string) *GUID {
h := sha1.Sum([]byte(source))
var g GUID
copy(g[0:], h[0:16])
return &g
}
func (g *GUID) ToString() string {
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return guid.FromWindowsArray(*g).String()
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}
type LayerReader = wclayer.LayerReader
func NewLayerReader(info DriverInfo, layerID string, parentLayerPaths []string) (LayerReader, error) {
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return wclayer.NewLayerReader(context.Background(), layerPath(&info, layerID), parentLayerPaths)
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}
type LayerWriter = wclayer.LayerWriter
func NewLayerWriter(info DriverInfo, layerID string, parentLayerPaths []string) (LayerWriter, error) {
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return wclayer.NewLayerWriter(context.Background(), layerPath(&info, layerID), parentLayerPaths)
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}
type WC_LAYER_DESCRIPTOR = wclayer.WC_LAYER_DESCRIPTOR