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3eef755b3b
This tag of hcsshim brings in a couple welcome features/improvements. One being exposing a way to query for hns endpoint statistics (Packets received/sent etc.). This tag also contains some optimizations for querying whether a certain HCN feature is supported, which is a common workflow in kube-proxy on Windows. The first result from querying HCN is now cached so further calls can skip the hcn query as well as the version range parsing that was performed. This also gets rid of some redundant logs that used to hit everytime the version range parsing occurred. The Go-winio dep bump, and all of the ctrd deps are transitive only. Nothing new is needed/intended to be used. Signed-off-by: Daniel Canter <dcanter@microsoft.com>
28 lines
891 B
Go
28 lines
891 B
Go
package wclayer
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import (
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"context"
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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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// ActivateLayer will find the layer with the given id and mount it's filesystem.
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// For a read/write layer, the mounted filesystem will appear as a volume on the
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// host, while a read-only layer is generally expected to be a no-op.
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// An activated layer must later be deactivated via DeactivateLayer.
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func ActivateLayer(ctx context.Context, path string) (err error) {
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title := "hcsshim::ActivateLayer"
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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(trace.StringAttribute("path", path))
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err = activateLayer(&stdDriverInfo, path)
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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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