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>
76 lines
2.2 KiB
Go
76 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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"errors"
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"fmt"
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"github.com/Microsoft/hcsshim/internal/oc"
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"github.com/Microsoft/hcsshim/osversion"
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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)
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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 fmt.Errorf("failed to setup base OS layer: %s", err)
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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.Get().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)
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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 fmt.Errorf("failed to setup base OS layer: %s", err)
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}
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return nil
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}
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