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Re: node constraints for builds/terminating pods





On Sep 11, 2016 12:56 AM, "Andrew Lau" <andrew andrewklau com> wrote:
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>
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> On Sun, 11 Sep 2016 at 02:09 Ben Parees <bparees redhat com> wrote:
>>
>> On Sat, Sep 10, 2016 at 4:03 AM, Andrew Lau <andrew andrewklau com> wrote:
>>>
>>> Hi all,
>>>
>>> Is it possible to tweak the scheduler to have a different ruleset for terminating/run-once pods? eg. I want to run all builds on a specific subset of nodes.
>>
>>
>> Not currently, but we are tracking this card to try to solve the problem:
>> https://trello.com/c/O4CNExeB/792-13-allow-for-a-separate-set-of-build-nodes-ops-rfe
>>
>> note that it is blocked by the upstream "taints and tolerations" feature, but it's definitely something we're looking at in the near term.
>> ​
>
> Thanks Ben.
>
> Following the conversation trail, I too would like to see the ability for users select a node grouping. Some additional reasons could be cost reasons (eg. using cluster 1 is faster but more expensive) or geographical constraints (legal requirements or specific app network/source access restrictions).

Yes, the complete solution is likely a combination  of taints/toleration ("only builds can run on these nodes") and selectors ("as a user I want my build to run on a node with these qualities ")

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>>> Thanks
>>>
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>>
>>
>>
>> --
>> Ben Parees | OpenShift
>>


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