- Upgrade the rootwrap configuration for the compute service,
so that patches requiring new rootwrap configuration can be
tested with grenade.
- In a race condition if base image is deleted by ImageCacheManager
while imagebackend is copying the image to instance path, then the
instance goes in to error state. In this case when libvirt has
changed the base file ownership to libvirt-qemu while imagebackend
is copying the image, then we get permission denied error on updating
the file access time using os.utime. Fixed this issue by updating the
base file access time with root user privileges using 'touch' command.