a551492e99
* Update hcsshim to v0.8.14 * Update go-winio to v0.4.16 This brings in some vhd package changes from winio, and the compute storage api bindings for the shim. This is to facilitate some coming functionality for the windows snapshotter as well as possibly for future work down the line for the windows differ. Signed-off-by: Daniel Canter <dcanter@microsoft.com>
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package computestorage
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import (
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"context"
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"encoding/json"
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"fmt"
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"github.com/Microsoft/hcsshim/internal/oc"
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"go.opencensus.io/trace"
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)
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// ExportLayer exports a container layer.
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//
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// `layerPath` is a path to a directory containing the layer to export.
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//
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// `exportFolderPath` is a pre-existing folder to export the layer to.
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//
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// `layerData` is the parent layer data.
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//
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// `options` are the export options applied to the exported layer.
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func ExportLayer(ctx context.Context, layerPath, exportFolderPath string, layerData LayerData, options ExportLayerOptions) (err error) {
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title := "hcsshim.ExportLayer"
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ctx, span := trace.StartSpan(ctx, title)
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defer span.End()
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defer func() { oc.SetSpanStatus(span, err) }()
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span.AddAttributes(
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trace.StringAttribute("layerPath", layerPath),
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trace.StringAttribute("exportFolderPath", exportFolderPath),
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)
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ldbytes, err := json.Marshal(layerData)
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if err != nil {
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return err
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}
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obytes, err := json.Marshal(options)
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if err != nil {
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return err
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}
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err = hcsExportLayer(layerPath, exportFolderPath, string(ldbytes), string(obytes))
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if err != nil {
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return fmt.Errorf("failed to export layer: %s", err)
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}
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return nil
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}
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