DockerCLI/vendor/github.com/Microsoft/hcsshim/internal/wclayer/activatelayer.go

33 lines
891 B
Go

package wclayer
import (
"github.com/Microsoft/hcsshim/internal/hcserror"
"github.com/sirupsen/logrus"
)
// ActivateLayer will find the layer with the given id and mount it's filesystem.
// For a read/write layer, the mounted filesystem will appear as a volume on the
// host, while a read-only layer is generally expected to be a no-op.
// An activated layer must later be deactivated via DeactivateLayer.
func ActivateLayer(path string) (err error) {
title := "hcsshim::ActivateLayer"
fields := logrus.Fields{
"path": path,
}
logrus.WithFields(fields).Debug(title)
defer func() {
if err != nil {
fields[logrus.ErrorKey] = err
logrus.WithFields(fields).Error(err)
} else {
logrus.WithFields(fields).Debug(title + " - succeeded")
}
}()
err = activateLayer(&stdDriverInfo, path)
if err != nil {
return hcserror.New(err, title+" - failed", "")
}
return nil
}