Hi everyone， I am using a virtual machine to create a snapshot, and then use this snapshot to create other virtual machines.Will encounter residual data didn't clean the problem, this will lead to network card information is inaccurate, puppet certificate conflict etc. The current practice is to use the sys-virtprep tools manual cleaning, within the opesntack system, whether to have a better solution? Regards. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20161122/677a3c34/attachment.html>