39 lines
1.1 KiB
Go
39 lines
1.1 KiB
Go
package computestorage
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import (
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"context"
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"encoding/json"
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"github.com/Microsoft/hcsshim/internal/oc"
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"github.com/pkg/errors"
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"go.opencensus.io/trace"
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)
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// InitializeWritableLayer initializes a writable layer for a container.
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//
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// `layerPath` is a path to a directory the layer is mounted. If the
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// path does not end in a `\` the platform will append it automatically.
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//
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// `layerData` is the parent read-only layer data.
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func InitializeWritableLayer(ctx context.Context, layerPath string, layerData LayerData) (err error) {
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title := "hcsshim.InitializeWritableLayer"
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ctx, span := trace.StartSpan(ctx, title) //nolint:ineffassign,staticcheck
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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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)
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bytes, 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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// Options are not used in the platform as of RS5
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err = hcsInitializeWritableLayer(layerPath, string(bytes), "")
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if err != nil {
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return errors.Wrap(err, "failed to intitialize container layer")
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}
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return nil
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}
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