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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">I think you’re giving a great example of my point that we’re not yet at the stage where we can say, “</span><span style="font-size:11.0pt;font-family:Calibri">Any tool should be able to
deploy kolla containers”. Right?</span><span style="font-size:11.0pt;font-family:Calibri"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:Calibri;color:black">From: </span>
</b><span style="font-family:Calibri;color:black">Pete Birley <pete@port.direct><br>
<b>Reply-To: </b>"OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org><br>
<b>Date: </b>Thursday, January 5, 2017 at 9:06 PM<br>
<b>To: </b>"OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org><br>
<b>Subject: </b>Re: [openstack-dev] [tc][kolla] Adding new deliverables<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I'll reply to Britts comments, and then duck out, unless explicitly asked back, as I don't want to (totally) railroad this conversation:
<o:p></o:p></p>
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<p class="MsoNormal">The Kolla containers entry-point is a great example of how the field have moved on. While it was initially required, in the Kkubernetes world the Kolla ABI is actually more of a hindrance than help, as it makes the containers much more
of a 'black-box' to use. In the other Openstack on Kubernetes projects I contribute to, and my own independent work, in we actually just define the entry point to the container directly in the k8s manifest and make no use of Kolla's entry point and config
mechanisms, either running another 'init' container to build and bind mount the configuration (Harbor), or use Kubernetes configmap object to achieve the same result (Openstack Helm). It would be perfectly possible for Kolla Ansible (and indeed Salt) to take
a similar approach - meaning that rather maintaining an ABI that works for all platforms, Kolla would be free to just ensure that the required binaries were present in images.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I agree that this cannot happen overnight, but think that when appropriate we should take stock of where we are and how to plot a course that lets all of our projects flourish without competing for resources, or being so entwined that we
become technically paralyzed and overloaded.<br>
<br>
Sorry, Sam and <span style="font-size:9.5pt">Michal! You can have your thread back now :)</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Fri, Jan 6, 2017 at 1:17 AM, Britt Houser (bhouser) <<a href="mailto:bhouser@cisco.com" target="_blank">bhouser@cisco.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri">I think both Pete and Steve make great points and it should be our long term vision. However, I lean more with Michael that we
should make that a separate discussion, and it’s probably better done further down the road. Yes, Kolla containers have come a long way, and the ABI has been stable for awhile, but the vast majority of that “for awhile” was with a single deployment tool:
ansible. Now we have kolla-k8s and kolla-salt. Neither one is fully featured yet as ansible, which to me means I don’t think we can say for sure that ABI won’t need to change as we try to support many deployment tools. (Someone remind me, didn’t kolla-mesos
change the ABI?) Anyway, the point is I don’t think we’re at a point of maturity to be certain the ABI won’t need changing. When we have 2-3 deployment tools with enough feature parity to say, “Any tool should be able to deploy kolla containers” then I think
it make sense to have that discussion. I just don’t think we’re there yet. And until the point, changes to the ABI will be quite painful if each project is in outside of the kolla umbrella, IMHO.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri">Thx,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:Calibri">britt</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-family:Calibri;color:black">From:
</span></b><span style="font-family:Calibri;color:black">Pete Birley <pete@port.direct><br>
<b>Reply-To: </b>"OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>><br>
<b>Date: </b>Thursday, January 5, 2017 at 6:47 PM<br>
<b>To: </b>"OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>><br>
<b>Subject: </b>Re: [openstack-dev] [tc][kolla] Adding new deliverables</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Also coming from the perspective of a Kolla-Kubernetes contributor, I am worried about the scope that Kolla is extending itself to.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Moving from a single repo to multiple repo's has made the situation much better, but by operating under a single umbrella I feel that we may potentially be significantly limiting
the potential for each deliverable. Alex Schultz, Steve and Sam raise some good points here.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">The interdependency between the projects is causing issues, the current reliance that Kolla-Kubernetes has on Kolla-ansible is both undesirable and unsustainable in my opinion.
This is both because it limits the flexibility that we have as Kolla-Kubernetes developers, but also because it places burden and rigidity on Kolla-Ansible. This will ultimately prevent both projects from being able to take advantage of the capabilities offered
to them by the deployment mechanism they use.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Like Steve, I don't think the addition of Kolla-aSlt should affect me, and as a result don't feel I should have any say in the project. That said, I'd really like to see it happen
in one form or another - as having a wide variety of complementary projects and tooling for OpenStack deployment can only be a good thing for the community if correctly managed.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">When Kolla started it was very experimental, containers (In their modern form) were a relatively new construct, and it took on the audacious task of trying to package and deploy
OpenStack using the tooling that was available at the time. I really feel that this effort has succeeded admirably, and conversations like this are a result of that. Kolla is one of the most active projects in OpenStack, with two deployment mechanisms being
developed currently, and hopefully to increase soon with a salt based deployment and potentially even more on the horizon.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">With this in mind, I return to my original point and wonder if we may be better moving from our current structure of Kolla-deploy(x) to deploy(x)-Kolla and redefine the governance
of these deliverables, turning them into freestanding projects. I think this would offer several potential advantages, as it would allow teams to form tighter bonds with the tools and communities they use (ie Kubernetes/Helm, Ansible or Salt). This would also
make it easier for these projects to use upstream components where available (eg Ceph, RabbitMQ, and MariaDB) which are (and should be) in many cases better than the artifacts we can produce. To this end, I have been working with the Ceph community to get
their Kubernetes Helm implementation to the point where we can use it for our own work, and would love to see more of this. It benefits not only us by offloading support to the upstream project, but gives them a vested interest in supporting us and also helps
provide better quality tooling for the entire open source ecosystem.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">This should also allow Kolla itself to become much more streamlined, and focused simply on producing docker containers for consumption by the community, and make the artifacts produced
potentially much less opinionated and more attractive to other projects. And being honest, I have a real desire for this activity to eventually be taken on by the relevant OpenStack projects themselves - and would love to see Kolla help develop a framework
that would allow projects to take ownership of the containerisation of their output.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Sorry for such a long email - but this seems like a good opportunity to raise some of these issues that have been on my mind. In summary, if it doesn't affect me then I wish a Salt
based Kolla deployment the best of success and hope to see the project prosper so that we as OpenStack developers can all share from the increased experience and opportunities growing the community offers.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On Thu, Jan 5, 2017 at 9:43 PM, Steve Wilkerson <<a href="mailto:wilkers.steve@gmail.com" target="_blank">wilkers.steve@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">There are some interesting points in this topic. I agree entirely with Sam Yaple. It does not make sense to me to have kolla-ansible and kolla-kubernetes cores involved with the
introduction of a new deliverable under the kolla umbrella. A new deliverable (read: project, really) should not rely on a separate project to ratify its existence. I feel this is dangerous. I also feel looking at the different deployment methodologies
scoped under the kolla project as competition or rivalry is folly. I'm honestly a bit concerned about how broad the scope of the project kolla has become. I think the conversation of separating the deployment projects from the kolla umbrella is a conversation
worth having at some point. <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">The repo split was a step in the right direction, but currently the deliverables (4, if kolla-salt becomes a thing) are sharing a single PTL, a single IRC channel, and a single
IRC weekly meeting. This has the potential of introducing a significant amount of overhead for the overarching project as a whole. What happens if kolla-puppet becomes a thing? What if kolla-mesos was still about? I think we can all agree this gets out
of hand quickly.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Yes, people are religious about the tools they use, and deployment tools are no different. I think scoping them all under the same umbrella project is a mistake in the long term.
The folks that want to focus on Ansible should be able to focus wholly on Ansible with like-minded folks, same for Salt, same for whatever. Having them remain together for the sake of sharing a name isn't sustainable in the long term -- let each do what they
do well. As far as being able to talk and share experiences in deployments or whatever, let's not act as if IRC channels have walls we can't reach across. As part of the kolla-kubernetes community, it's imperative that I can reach across the gap to work
with people in the Helm and Kubernetes community. If the deployment tools existed separately, there's nothing stopping them from asking either.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">But in regards to the question, if kolla-salt is to be a thing, I think the PTL and the kolla team proper can decide that. As a contributor for kolla-kubernetes, it does not and
should not affect me.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On Thu, Jan 5, 2017 at 3:14 PM, Doug Hellmann <<a href="mailto:doug@doughellmann.com" target="_blank">doug@doughellmann.com</a>> wrote:<o:p></o:p></p>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Excerpts from Michał Jastrzębski's message of 2017-01-05 11:45:49 -0800:<span style="font-family:PMingLiU"><br>
</span>> I think total separation of projects would require much larger<span style="font-family:PMingLiU"><br>
</span>> discussion in community. Currently we agreed on having kolla-ansible<span style="font-family:PMingLiU"><br>
</span>> and kolla-k8s to be deliverables under kolla umbrella from historical<br>
> reasons. Also I don't agree that there is "little or no overlap" in<br>
> teams, in fact there is ton of overlap, just not 100%. Many<br>
> contributors (myself included) jump between deliverables today.<br>
<br>
OK, that's good to know. It wasn't clear from some of the initial<br>
messages in this thread, which seemed to imply otherwise.<br>
<span style="color:#888888"><br>
<span class="m-966711079017046840gmail-m4452651621995092624hoenzb">Doug</span></span><o:p></o:p></p>
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<p style="margin-bottom:7.5pt;line-height:9.0pt"><b><span style="font-size:7.5pt;font-family:Helvetica;color:#212121">Pete Birley</span></b><span style="font-size:7.5pt;font-family:Helvetica;color:#212121"> / Director <br>
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<p style="margin-bottom:7.5pt;line-height:9.0pt"><b><span style="font-size:7.5pt;font-family:Helvetica;color:#212121">Pete Birley</span></b><span style="font-size:7.5pt;font-family:Helvetica;color:#212121"> / Director <br>
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