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Hi Neal, thanks for response.

So I would see it as UNDERCLOUD_USE_UI (TripleO UI can be placed only to 
Undercloud)

And for overcloud: OVERCLOUD_USE_UI and OVERCLOUD_USE_CEILOMETER, cause in
overcloud users might not want UI, but only data for billing. Does it 
sound reasonable?

On 04/22/2014 06:23 PM, Neal, Phil wrote:
>> From: Ladislav Smola [mailto:lsmola at redhat.com]
>> Sent: Wednesday, April 16, 2014 8:37 AM
>> To: openstack-dev at lists.openstack.org
>> Subject: Re: [openstack-dev] [TripleO] [Tuskar] Undercloud Ceilometer
>>
>> No response so far, but -1 on the image element for making Ceilometer
>> optional.
> Sorry for the delayed response, Ladislov. It turns out that the mailing list was filtering out these TripleO mails for me.
>
> Let me add a little context to that -1: given that a TripleO user may not want to enable a UI layer at the undercloud level (there's a use case for using the undercloud solely for spinning up the overcloud), I think we want to support as small a footprint as possible.
>
>> OK, so what about having variable in devtest_variables: USE_TRIPLEO_UI.
>>
> I like this approach better...in fact I will look into adding something similar into the changes I'm making to enable Ceilometer by default in the overcloud control node: https://review.openstack.org/#/c/89625/1
>
>> It would add Undercloud Ceilometer, Tuskar-UI and Horizon. And Overcloud
>> SNMPd.
>>
>> Defaulted to USE_TRIPLEO_UI=1 so we have UI stuff in CI.
>>
>> How does it sound?
>>
> Perhaps specify something like "UNDERCLOUD_USE_TRIPLEO_UI" to be more specific on where this will be deployed.
>> On 04/14/2014 01:31 PM, Ladislav Smola wrote:
>>> Hello,
>>>
>>> I am planning to add Ceilometer to Undercloud as default. Since
>>> Tuskar-UI uses
>>> it as primary source of metering samples and Tuskar should be in
>>> Undercloud
>>> as default, it made sense to me.
>>>
>>> So is my assumption correct or there are some reasons not to do this?
>>>
>>> Here are the reviews, that are adding working Undercloud Ceilometer:
>>> https://review.openstack.org/#/c/86915/
>>> https://review.openstack.org/#/c/86917/  (depends on the template
>> change)
>>> https://review.openstack.org/#/c/87215/
>>>
>>> Configuration for automatic obtaining of stats from all Overcloud
>>> nodes via.
>>> SNMP will follow soon.
>>>
>>> Thanks,
>>> Ladislav
>>>
>>>
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>>
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