Re: [RFC] migration encryption

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On 10.11.2015 14:08, Ján Tomko wrote:
> On Tue, Nov 10, 2015 at 01:52:16PM +0300, Nikolay Shirokovskiy wrote:
>> Hi guys.
>>
>>  I have a problem getting migration traffic encrypted for some scenarios. I need to
>> migrate domain with non shared disks and can't use tunelled migration because of RHEL7 qemu.
>> Without tunnel i get both vm state and disk state traffic unencrypted between
>> peer's qemus. AFAIK there is a work in progress in qemu to bring TLS encryption
>> to all channels and eventually I get desired functionality but what are my options
>> now?
>>  I thinking of forwarding ports from destination to source and use localhost in
>> hypervisor uri. The only problem is that port for disk migration is auto selected.
>> Can we add a patch to pass this port as a migration parameter?
>>
> 
> We already have a migration URI, where you can specify the port:
> http://libvirt.org/migration.html#uris
> so working around the lack of encryption should be possible.
True, but I need to specify 2 ports: one for vm state migration and
one for vm disks migration (in case of non shared disks).
> 
> The listen address can now also be specified if you don't want QEMU to
> listen on all interfaces:
> http://libvirt.org/html/libvirt-libvirt-domain.html#VIR_MIGRATE_PARAM_LISTEN_ADDRESS
> 
> Jan
> 

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