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virtcontainers/fc: add logs and improve others to make debugging easier

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add more logs and improve others to make firecracker debugging less painful

Signed-off-by: Julio Montes <julio.montes@intel.com>
This commit is contained in:
Julio Montes 2019-09-27 16:30:21 +00:00
parent ed7240b40f
commit 07932d59ab
1 changed files with 4 additions and 1 deletions
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5
virtcontainers/fc.go
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@ -191,6 +191,8 @@ func (fc *firecracker) bindMount(ctx context.Context, source, destination string
return fmt.Errorf("Could not create destination mount point %v: %v", destination, err)
}
fc.Logger().WithFields(logrus.Fields{"src": absSource, "dst": destination}).Debug("Bind mounting resource")
if err := syscall.Mount(absSource, destination, "bind", syscall.MS_BIND|syscall.MS_SLAVE, ""); err != nil {
return fmt.Errorf("Could not bind mount %v to %v: %v", absSource, destination, err)
}
@ -717,9 +719,10 @@ func (fc *firecracker) createDiskPool() error {
func (fc *firecracker) umountResource(jailedPath string) {
hostPath := filepath.Join(fc.jailerRoot, jailedPath)
fc.Logger().WithField("resource", hostPath).Debug("Unmounting resource")
err := syscall.Unmount(hostPath, syscall.MNT_DETACH)
if err != nil {
fc.Logger().WithField("umountResource failed", err).Info()
fc.Logger().WithError(err).Error("Failed to umount resource")
}
}