[ovirt-devel] IPv6 support in oVirt

[Piotr Kliczewski]

On Wed, Feb 17, 2016 at 5:47 PM, Yevgeny Zaspitsky <yzaspits at redhat.com> wrote:
> Piotr,
>
> According to our checks engine succeed connecting VDSM through ipv6 once the
> work you've reminded has been done. So it looks like jsonrpc is agnostic to
> IP layer it uses underneath.
>

I never tested it with ipv6 but looking at java internals that I used
and it accepts host as
specified in RFC 2732 or RFC 2373.
It looks that it should work out of the box.

> Could you please elaborate on why do you think that we break backward
> compatibility.

I suggested to add Address type which would hold both address types so we
could use it in many places. This change would break backward compatibility.

> If you compare the wiki to vdsmapi-schema.json file, looks like the last
> isn't updated for some time and needs to be updated according to the actual
> code.
>

Type extension would not break backward compatibility but it would introduce
bunch of optional parameters. I think we could do better.

> We add dhcpv6 in order to allow user to configure v6 stack independently
> from v4 one. That could be useful especially in a transition period, when a
> user have fully configured ipv4 and would like to try using ipv6 and he
> hasn't configured his DHCP server for v6 yet.
>

I would add that to new address type. What do you think?

> Regards,
> Yevgeny
>
> On Wed, Feb 17, 2016 at 10:26 AM, Piotr Kliczewski
> <piotr.kliczewski at gmail.com> wrote:
>>
>> Thank you for the effort.
>>
>> I have 2 comments:
>> - In [1] I do not see any information about using ipv6 in jsonrpc
>> code. I know that there was some work done on vdsm [2]
>>   side but nothing on the engine side.
>>
>> - We are about to break some backward compatibility so I suggest to
>> define new type which would hold ipv4 or ipv6
>>   information (vdsm api section) or if we want to keep the backward
>> compatibility we should reuse existing parameters
>>   and prepare the code to handle both formats.
>>   Why we are adding @dhcpv6? We do not have this setting for ipv4.
>>
>> Thanks,
>> Piotr
>>
>> [2] https://gerrit.ovirt.org/51319
>>
>>
>> On Tue, Feb 16, 2016 at 5:02 PM, Yevgeny Zaspitsky <yzaspits at redhat.com>
>> wrote:
>> > Hi All,
>> >
>> > IPv6 support is a long waited feature in oVirt and that was decided to
>> > include it in v4.0.
>> > I have updated the feature page [1] with the recent projected changes.
>> >
>> > Please take a look on the page and please send me your comments so those
>> > would be reflected in the feature implementation.
>> >
>> > Regards,
>> > Yevgeny
>> >
>> > [1] http://www.ovirt.org/Features/IPv6_support
>> >
>> > _______________________________________________
>> > Devel mailing list
>> > Devel at ovirt.org
>> > http://lists.ovirt.org/mailman/listinfo/devel
>
>