Re: [Qemu-devel] [question] updating the base image for all clones which havebeen running for months

[Eric Blake <eblake@redhat.com>]

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On 11/03/2014 01:37 PM, Zhang Haoyu wrote:
>>> Hi, all
>>>
>>> I used base image A to clone so many vm, 
>>> after running for months, each vm has its own private applications and data,
>>> which maybe different from each other.
>>> Now, I want to install some applications for all of the clones,
>>> what should I do?

How would you do it for bare metal? Do the same for your guests.

>>
>> Install the applications on each clone separately, or use some other
>> method to make it available (like installing on a shared network
>> resource).
>>
> Could you detail "installing on a shared network resource"?

Set up a network file system, like NFS or gluster, install your software
on the shared file system, and then make each guest mount the shared
file system in order to use the software.  The same as you would on bare
metal.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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