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75 lines
2.2 KiB
Go
75 lines
2.2 KiB
Go
package computestorage
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import (
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"context"
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"encoding/json"
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"github.com/Microsoft/hcsshim/internal/oc"
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"github.com/Microsoft/hcsshim/osversion"
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"github.com/pkg/errors"
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"go.opencensus.io/trace"
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"golang.org/x/sys/windows"
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)
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// SetupBaseOSLayer sets up a layer that contains a base OS for a container.
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//
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// `layerPath` is a path to a directory containing the layer.
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//
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// `vhdHandle` is an empty file handle of `options.Type == OsLayerTypeContainer`
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// or else it is a file handle to the 'SystemTemplateBase.vhdx' if `options.Type
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// == OsLayerTypeVm`.
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//
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// `options` are the options applied while processing the layer.
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func SetupBaseOSLayer(ctx context.Context, layerPath string, vhdHandle windows.Handle, options OsLayerOptions) (err error) {
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title := "hcsshim.SetupBaseOSLayer"
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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(options)
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if err != nil {
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return err
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}
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err = hcsSetupBaseOSLayer(layerPath, vhdHandle, string(bytes))
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if err != nil {
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return errors.Wrap(err, "failed to setup base OS layer")
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}
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return nil
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}
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// SetupBaseOSVolume sets up a volume that contains a base OS for a container.
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//
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// `layerPath` is a path to a directory containing the layer.
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//
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// `volumePath` is the path to the volume to be used for setup.
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//
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// `options` are the options applied while processing the layer.
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func SetupBaseOSVolume(ctx context.Context, layerPath, volumePath string, options OsLayerOptions) (err error) {
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if osversion.Build() < 19645 {
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return errors.New("SetupBaseOSVolume is not present on builds older than 19645")
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}
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title := "hcsshim.SetupBaseOSVolume"
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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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trace.StringAttribute("volumePath", volumePath),
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)
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bytes, 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 = hcsSetupBaseOSVolume(layerPath, volumePath, string(bytes))
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if err != nil {
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return errors.Wrap(err, "failed to setup base OS layer")
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}
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return nil
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}
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