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

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package hcsshim
import (
"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 {
return wclayer.ActivateLayer(layerPath(&info, id))
}
func CreateLayer(info DriverInfo, id, parent string) error {
return wclayer.CreateLayer(layerPath(&info, id), parent)
}
// New clients should use CreateScratchLayer instead. Kept in to preserve API compatibility.
func CreateSandboxLayer(info DriverInfo, layerId, parentId string, parentLayerPaths []string) error {
return wclayer.CreateScratchLayer(layerPath(&info, layerId), parentLayerPaths)
}
func CreateScratchLayer(info DriverInfo, layerId, parentId string, parentLayerPaths []string) error {
return wclayer.CreateScratchLayer(layerPath(&info, layerId), parentLayerPaths)
}
func DeactivateLayer(info DriverInfo, id string) error {
return wclayer.DeactivateLayer(layerPath(&info, id))
}
func DestroyLayer(info DriverInfo, id string) error {
return wclayer.DestroyLayer(layerPath(&info, id))
}
// New clients should use ExpandScratchSize instead. Kept in to preserve API compatibility.
func ExpandSandboxSize(info DriverInfo, layerId string, size uint64) error {
return wclayer.ExpandScratchSize(layerPath(&info, layerId), size)
}
func ExpandScratchSize(info DriverInfo, layerId string, size uint64) error {
return wclayer.ExpandScratchSize(layerPath(&info, layerId), size)
}
func ExportLayer(info DriverInfo, layerId string, exportFolderPath string, parentLayerPaths []string) error {
return wclayer.ExportLayer(layerPath(&info, layerId), exportFolderPath, parentLayerPaths)
}
func GetLayerMountPath(info DriverInfo, id string) (string, error) {
return wclayer.GetLayerMountPath(layerPath(&info, id))
}
func GetSharedBaseImages() (imageData string, err error) {
return wclayer.GetSharedBaseImages()
}
func ImportLayer(info DriverInfo, layerID string, importFolderPath string, parentLayerPaths []string) error {
return wclayer.ImportLayer(layerPath(&info, layerID), importFolderPath, parentLayerPaths)
}
func LayerExists(info DriverInfo, id string) (bool, error) {
return wclayer.LayerExists(layerPath(&info, id))
}
func PrepareLayer(info DriverInfo, layerId string, parentLayerPaths []string) error {
return wclayer.PrepareLayer(layerPath(&info, layerId), parentLayerPaths)
}
func ProcessBaseLayer(path string) error {
return wclayer.ProcessBaseLayer(path)
}
func ProcessUtilityVMImage(path string) error {
return wclayer.ProcessUtilityVMImage(path)
}
func UnprepareLayer(info DriverInfo, layerId string) error {
return wclayer.UnprepareLayer(layerPath(&info, layerId))
}
type DriverInfo struct {
Flavour int
HomeDir string
}
type GUID [16]byte
func NameToGuid(name string) (id GUID, err error) {
g, err := wclayer.NameToGuid(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) {
return wclayer.NewLayerReader(layerPath(&info, layerID), parentLayerPaths)
}
type LayerWriter = wclayer.LayerWriter
func NewLayerWriter(info DriverInfo, layerID string, parentLayerPaths []string) (LayerWriter, error) {
return wclayer.NewLayerWriter(layerPath(&info, layerID), parentLayerPaths)
}
type WC_LAYER_DESCRIPTOR = wclayer.WC_LAYER_DESCRIPTOR