Open Stack

Roman, please provide more details on how VIPs are overridden. And how do
you deal with multiple plugins.


Aleksey Kasatkin


On Thu, Jan 28, 2016 at 5:58 PM, Aleksey Kasatkin <akasatkin at mirantis.com>
wrote:

> Good idea, overally.
>
> How about multiple plugins? We don't have any sequence or priorities
> between them.
> What if one plugin assumes that VIP is present but other one wants to
> remove it?
>
>
> Aleksey Kasatkin
>
>
> On Thu, Jan 28, 2016 at 4:02 PM, Sergii Golovatiuk <
> sgolovatiuk at mirantis.com> wrote:
>
>> +1 to overriding VIPs
>>
>> --
>> Best regards,
>> Sergii Golovatiuk,
>> Skype #golserge
>> IRC #holser
>>
>> On Thu, Jan 28, 2016 at 12:04 PM, Vladimir Kuklin <vkuklin at mirantis.com>
>> wrote:
>>
>>> +1 to overriding VIPs
>>>
>>> On Thu, Jan 28, 2016 at 1:43 PM, Roman Prykhodchenko <me at romcheg.me>
>>> wrote:
>>>
>>>> Folks,
>>>>
>>>> currently merge policy for network roles only allows to add new VIPs to
>>>> already existing roles [1]. If a plugin supplies a VIP with a name that
>>>> already exists but with different parameters, Nailgun will not allow to do
>>>> that. We faced a need to override configuration of several VIPs by
>>>> completely removing them from network roles by supplying something like
>>>> [2]. To enable that I’ve made a temporary workaround [3] to the merging
>>>> policy that only handles one cornerstone.
>>>>
>>>> I’ve talked to ikalnitsky and we realized that this functionality of
>>>> merging new VIPs from plugins to an existing network role is actually wrong
>>>> and should be replaced by complete overriding. Let’s discuss this
>>>> possibility here.
>>>>
>>>>
>>>> References:
>>>>
>>>> 1.
>>>> https://github.com/openstack/fuel-web/blob/master/nailgun/nailgun/policy/merge.py#L55
>>>> 2. http://xsnippet.org/361361/
>>>> 3. https://review.openstack.org/#/c/273169/1
>>>>
>>>>
>>>> - romcheg
>>>>
>>>>
>>>>
>>>> __________________________________________________________________________
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>>>>
>>>>
>>>
>>>
>>> --
>>> Yours Faithfully,
>>> Vladimir Kuklin,
>>> Fuel Library Tech Lead,
>>> Mirantis, Inc.
>>> +7 (495) 640-49-04
>>> +7 (926) 702-39-68
>>> Skype kuklinvv
>>> 35bk3, Vorontsovskaya Str.
>>> Moscow, Russia,
>>> www.mirantis.com <http://www.mirantis.ru/>
>>> www.mirantis.ru
>>> vkuklin at mirantis.com
>>>
>>>
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>>>
>>
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>
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