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7c8c945496
Pull in updates made to the filters code for images. Filters now perform an AND operation except for th reference filter which does an OR operation for positive case but an AND operation for negative cases. Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
69 lines
2.0 KiB
Go
69 lines
2.0 KiB
Go
//go:build windows
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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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// AttachLayerStorageFilter sets up the layer storage filter on a writable
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// container layer.
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//
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// `layerPath` is a path to a directory the writable 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 AttachLayerStorageFilter(ctx context.Context, layerPath string, layerData LayerData) (err error) {
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title := "hcsshim::AttachLayerStorageFilter"
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ctx, span := oc.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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err = hcsAttachLayerStorageFilter(layerPath, string(bytes))
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if err != nil {
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return errors.Wrap(err, "failed to attach layer storage filter")
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}
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return nil
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}
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// AttachOverlayFilter sets up a filter of the given type on a writable container layer. Currently the only
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// supported filter types are WCIFS & UnionFS (defined in internal/hcs/schema2/layer.go)
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//
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// `volumePath` is volume path at which writable 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 AttachOverlayFilter(ctx context.Context, volumePath string, layerData LayerData) (err error) {
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title := "hcsshim::AttachOverlayFilter"
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ctx, span := oc.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("volumePath", volumePath),
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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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err = hcsAttachOverlayFilter(volumePath, string(bytes))
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if err != nil {
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return errors.Wrap(err, "failed to attach overlay filter")
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}
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return nil
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}
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