diff options
Diffstat (limited to 'vendor/github.com/Microsoft/hcsshim/computestorage/export.go')
-rw-r--r-- | vendor/github.com/Microsoft/hcsshim/computestorage/export.go | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/vendor/github.com/Microsoft/hcsshim/computestorage/export.go b/vendor/github.com/Microsoft/hcsshim/computestorage/export.go new file mode 100644 index 000000000..b1721ef25 --- /dev/null +++ b/vendor/github.com/Microsoft/hcsshim/computestorage/export.go @@ -0,0 +1,46 @@ +package computestorage + +import ( + "context" + "encoding/json" + "fmt" + + "github.com/Microsoft/hcsshim/internal/oc" + "go.opencensus.io/trace" +) + +// ExportLayer exports a container layer. +// +// `layerPath` is a path to a directory containing the layer to export. +// +// `exportFolderPath` is a pre-existing folder to export the layer to. +// +// `layerData` is the parent layer data. +// +// `options` are the export options applied to the exported layer. +func ExportLayer(ctx context.Context, layerPath, exportFolderPath string, layerData LayerData, options ExportLayerOptions) (err error) { + title := "hcsshim.ExportLayer" + ctx, span := trace.StartSpan(ctx, title) + defer span.End() + defer func() { oc.SetSpanStatus(span, err) }() + span.AddAttributes( + trace.StringAttribute("layerPath", layerPath), + trace.StringAttribute("exportFolderPath", exportFolderPath), + ) + + ldbytes, err := json.Marshal(layerData) + if err != nil { + return err + } + + obytes, err := json.Marshal(options) + if err != nil { + return err + } + + err = hcsExportLayer(layerPath, exportFolderPath, string(ldbytes), string(obytes)) + if err != nil { + return fmt.Errorf("failed to export layer: %s", err) + } + return nil +} |