[rdo-list] Proposition to get more CI promotions

[Alan Pevec]

>> If we can go back just one commit, to "commit 2 to openstack-cinder", and it is passes CI, we could still have a consistent repo promoted, just not the very last one at the time of running the CI job.
>>
>> Actually, this makes sense to me. By doing this, we could promote the last known good+consistent repo, while we fix the latest issue.
>
> Yes that was the intent. Let's see how we could implement this.

Hold on, haven't we previously discussed to switch to staged promotion
i.e. puppet CI promotes RDO Trunk consistent first, then tripleo CI
tries to promote that and finally RDO CI uses what tripleo CI
promoted? Now we have all three starting from different random latest
"consistent" (at the time corresponding promotion runs) and diverging.
But in any case, first step is to have a database of "consistent"
hashes recorded somewhere, it would be just input to the puppet CI
promotion proposal script, right?

Cheers,
Alan