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34 lines
999 B
34 lines
999 B
package wclayer
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import (
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"context"
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"strings"
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"github.com/Microsoft/hcsshim/internal/hcserror"
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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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// CreateScratchLayer creates and populates new read-write layer for use by a container.
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// This requires the full list of paths to all parent layers up to the base
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func CreateScratchLayer(ctx context.Context, path string, parentLayerPaths []string) (err error) {
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title := "hcsshim::CreateScratchLayer"
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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("path", path),
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trace.StringAttribute("parentLayerPaths", strings.Join(parentLayerPaths, ", ")))
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// Generate layer descriptors
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layers, err := layerPathsToDescriptors(ctx, parentLayerPaths)
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if err != nil {
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return err
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}
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err = createSandboxLayer(&stdDriverInfo, path, 0, layers)
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if err != nil {
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return hcserror.New(err, title+" - failed", "")
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}
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return nil
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}
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