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<p class="MsoNormal"><span style="font-size:11.0pt">Thanks Hongbin,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">another quick question,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">is ZUN integrated with FUXI for Container mounting of Cinder Volumes yet ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">( my guess is no ... don’t see any options for that in the zun cli for create or run )<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Greg.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Hongbin Lu <hongbin.lu@huawei.com><br>
<b>Date: </b>Tuesday, July 11, 2017 at 2:04 PM<br>
<b>To: </b>Greg Waines <Greg.Waines@windriver.com>, "openstack-dev@lists.openstack.org" <openstack-dev@lists.openstack.org><br>
<b>Subject: </b>RE: [openstack-dev] [zun] Some general ZUN use case / drivers type questions<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Hi Greg,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">There is no such API in Zun. I created a BP for this feature request:
<a href="https://blueprints.launchpad.net/zun/+spec/show-container-engine-info">https://blueprints.launchpad.net/zun/+spec/show-container-engine-info</a> . Hopefully, the implementation will be available at the next release or two.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Best regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Hongbin</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:Tahoma">From:</span></b><span style="font-size:10.0pt;font-family:Tahoma"> Waines, Greg [mailto:Greg.Waines@windriver.com]
<br>
<b>Sent:</b> July-11-17 10:24 AM<br>
<b>To:</b> Hongbin Lu; OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> Re: [openstack-dev] [zun] Some general ZUN use case / drivers type questions</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Hey Hongbin,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">is there a way to display ZUN’s resource usage ?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">i.e. analogous to nova’s “nova hypervisor-show <node>”</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">e.g. memory usages, cpu usage, etc .</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Greg.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Hongbin Lu <<a href="mailto:hongbin.lu@huawei.com">hongbin.lu@huawei.com</a>><br>
<b>Date: </b>Friday, July 7, 2017 at 2:08 PM<br>
<b>To: </b>Greg Waines <<a href="mailto:Greg.Waines@windriver.com">Greg.Waines@windriver.com</a>>, "<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br>
<b>Subject: </b>RE: [openstack-dev] [zun] Some general ZUN use case / drivers type questions</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Hi Greg,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Zun currently leverages the “--memory", “--cpu-period”, and “--cpu-quota” options to limit the CPU and memory. Zun does do resource tracking and scheduling right now, but this is temporary. The
long-term plan is to switch to the Placement API [1] after it is spited out from Nova.
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">[1] <a href="https://docs.openstack.org/nova/latest/placement.html">
https://docs.openstack.org/nova/latest/placement.html</a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Best regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Hongbin</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:Tahoma">From:</span></b><span style="font-size:10.0pt;font-family:Tahoma"> Waines, Greg [<a href="mailto:Greg.Waines@windriver.com">mailto:Greg.Waines@windriver.com</a>]
<br>
<b>Sent:</b> July-07-17 11:00 AM<br>
<b>To:</b> Hongbin Lu; OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> Re: [openstack-dev] [zun] Some general ZUN use case / drivers type questions</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks Hongbin.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I’ve got zun setup in devstack now, so will play with it a bit to better understand.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:11.0pt">Although a couple more questions (sorry)</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-bottom:12.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:Symbol">·</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">in the current zun implementation of containers directly on compute nodes,<br>
<span style="color:red">does zun leverage any of the docker capabilities to restrict the amount of resources used by a container ?</span><br>
e.g. the amount and which cpu cores the container’s processes are allowed to use,<br>
how much memory the container is allowed to access/use, etc. <br>
<br>
e.g. see <a href="https://docs.docker.com/engine/admin/resource_constraints/">https://docs.docker.com/engine/admin/resource_constraints/</a></span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:Symbol">·</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">and then,<br>
I know you mentioned that the assumption is that there are separate availability zones for zun and nova.</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:"Courier New";color:red">o</span><span style="font-size:7.0pt;font-family:"Times New Roman";color:red">
</span><span style="font-size:11.0pt;color:red">but does zun do Resource Tracking and Scheduling based on that Resource Tracking for the nodes its using ?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Greg.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Hongbin Lu <<a href="mailto:hongbin.lu@huawei.com">hongbin.lu@huawei.com</a>><br>
<b>Date: </b>Friday, July 7, 2017 at 10:42 AM<br>
<b>To: </b>Greg Waines <<a href="mailto:Greg.Waines@windriver.com">Greg.Waines@windriver.com</a>>, "<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br>
<b>Subject: </b>RE: [openstack-dev] [zun] Some general ZUN use case / drivers type questions</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Hi Greg,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Sorry for the confusion. I used the term “container-in-baremetal” to refer to a deployment pattern that containers are running on physical compute nodes (not an instance provided by Nova/Ironic).
I think your second interpretation is right if “OpenStack Hosts” means a compute node. I think a diagram [1] could explain the current deployment scenario better.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">For the container-in-coe scenario, it is out of the current focus but the team is exploring ideas on it. I don’t have specific answers for the two questions you raised but I encourage you to
bring up your use cases to the team and keep the discussion open.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">[1] <a href="https://www.slideshare.net/hongbin034/clipboards/zun-deployment">
https://www.slideshare.net/hongbin034/clipboards/zun-deployment</a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Best regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Hongbin</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:Tahoma">From:</span></b><span style="font-size:10.0pt;font-family:Tahoma"> Waines, Greg [<a href="mailto:Greg.Waines@windriver.com">mailto:Greg.Waines@windriver.com</a>]
<br>
<b>Sent:</b> July-07-17 7:05 AM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Cc:</b> Hongbin Lu<br>
<b>Subject:</b> Re: [openstack-dev] [zun] Some general ZUN use case / drivers type questions</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Hongbin, </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks for the responses.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">A couple of follow up, clarifying questions ...</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:Symbol">·</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">You mentioned that <u>currently</u> Zun supports the container-in-baremetal scenario</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:"Courier New"">o</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">is this done by leveraging Ironic baremetal service ?</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:108.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:Wingdings">§</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">e.g. does Zun launch an Ironic baremetal instance (running docker) in order to host containers being launched by Zun ?</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:"Courier New"">o</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">OR</span><o:p></o:p></p>
<p class="MsoListParagraph" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:72.0pt;text-indent:-18.0pt">
<span style="font-size:11.0pt;font-family:"Courier New"">o</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">do you must mean that, in this scenario, OpenStack Hosts are deployed&configured with docker software,<br>
and Zun expects docker to be running on each OpenStack Host, in order to launch its containers ?<br>
<br>
<br>
</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:Symbol">·</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">In the future, when Zun supports the container-in-coe scenario</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:"Courier New"">o</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">is the idea that the COE (Kubernetes or Swarm) will abstract from Zun whether the COE’s minion nodes are OpenStack VMs or OpenStack Baremetal Instances (or OpenStack Hosts) ?</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:"Courier New"">o</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">is the idea that Magnum will support launching COEs with VM minion nodes and/or Baremetal minion nodes ?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Greg.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Hongbin Lu <<a href="mailto:hongbin.lu@huawei.com">hongbin.lu@huawei.com</a>><br>
<b>Reply-To: </b>"<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br>
<b>Date: </b>Thursday, July 6, 2017 at 2:39 PM<br>
<b>To: </b>"<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br>
<b>Subject: </b>Re: [openstack-dev] [zun] Some general ZUN use case / drivers type questions</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Hi Greg,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Please find my replies inline.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Best regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Hongbin</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:Tahoma">From:</span></b><span style="font-size:10.0pt;font-family:Tahoma"> Waines, Greg [<a href="mailto:Greg.Waines@windriver.com">mailto:Greg.Waines@windriver.com</a>]
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<b>Sent:</b> July-06-17 11:49 AM<br>
<b>To:</b> <a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a><br>
<b>Subject:</b> [openstack-dev] [zun] Some general ZUN use case / drivers type questions</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Apologize I have some ‘newbie’ questions on zun.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I have looked a bit at zun ... a few slide decks and a few summit presentation videos.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I am somewhat familiar with old container orchestration attempts in openstack ... nova and heat.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">And somewhat familiar with Magnum for COEs on VMs.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Question 1:</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt"><span style="font-size:11.0pt;color:red">-</span><span style="font-size:7.0pt;font-family:"Times New Roman";color:red">
</span><span style="font-size:11.0pt;color:red">in long term, will ZUN manage containers hosted by OpenStack VMs or OpenStack Hosts or both ?</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:"Courier New"">o</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">I think the answer is both, and</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:"Courier New"">o</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">I think technically ZUN will manage the containers in OpenStack VM(s) or OpenStack Host(s), thru a COE</span><o:p></o:p></p>
<p class="MsoListParagraph" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:108.0pt;text-indent:-18.0pt">
<span style="font-size:11.0pt;font-family:Wingdings">§</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">where the COE is kubernetes, swarm, mesos ... or, initially, some very simple default COE provided by ZUN itself.</span><o:p></o:p></p>
<p class="MsoListParagraph" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<b><i><span style="font-size:11.0pt;color:#1F497D">[Hongbin Lu] Yes. Zun aims to support containers in VMs, baremetal, or COEs in long term. A clarification is Zun doesn’t aim to become a COE, but it could be used together with Heat [1] to achieve some container
orchestration equivalent functionalities. </span></i></b><o:p></o:p></p>
<p class="MsoListParagraph" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<b><i><span style="font-size:11.0pt;color:#1F497D">[1] <a href="https://review.openstack.org/#/c/437810/">
https://review.openstack.org/#/c/437810/</a></span></i></b><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Question 2: </span>
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;color:red">-</span><span style="font-size:7.0pt;font-family:"Times New Roman";color:red">
</span><span style="font-size:11.0pt;color:red">what is currently supported in MASTER ?</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><i><span style="font-size:11.0pt;color:#1F497D">[Hongbin Lu] What currently supported is container-in-baremetal scenario. The next release might introduce container-in-vm. COE integration might be the long term pursue.</span></i></b><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Question 3: </span>
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt">-</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">in the scenario where ZUN is managing containers thru Kubernetes directly on OpenStack Host(s)</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:72.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:"Courier New"">o</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">I believe the intent is that,<br>
at the same time, and on the same OpenStack Host(s),<br>
NOVA is managing VMs on the OpenStack Host(s)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:72.0pt;text-indent:-18.0pt">
<span style="font-size:11.0pt;font-family:"Courier New";color:red">o</span><span style="font-size:7.0pt;font-family:"Times New Roman";color:red">
</span><span style="font-size:11.0pt;color:red">??? Has anyone started to look at the Resource Management / Arbitration of the OpenStack Host’s Resources,</span><span style="font-size:11.0pt;font-family:PMingLiU;color:red"><br>
</span><span style="font-size:11.0pt;color:red"> between ZUN and NOVA ???</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><b><i><span style="font-size:11.0pt;color:#1F497D">[Hongbin Lu] No, it hasn’t. We started with an assumption that Zun and Nova are managing disjoined set of resources (i.e. compute hosts) so there is not resource
contention. The ability to share compute resources across multiple OpenStack services for VMs and containers is cool and it might require discussions across multiple teams to build consensus of this pursue.</span></i></b><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Question 4: </span>
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt">-</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">again, in the scenario where ZUN is managing containers thru Kubernetes directly on OpenStack Host(s)</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;color:red">-</span><span style="font-size:7.0pt;font-family:"Times New Roman";color:red">
</span><span style="font-size:11.0pt;color:red">what are the Technical Pros / Cons of this approach, relative to using OpenStack VM(s) ?</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:72.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:"Courier New"">o</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">PROs</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:108.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:Wingdings;color:red">§</span><span style="font-size:7.0pt;font-family:"Times New Roman";color:red">
</span><span style="font-size:11.0pt;color:red">??? does this really use less resources than the VM Scenario ???</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:144.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:Symbol;color:red">·</span><span style="font-size:7.0pt;font-family:"Times New Roman";color:red">
</span><span style="font-size:11.0pt;color:red">is there an example you can walk me thru ?</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:108.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:Wingdings">§</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">I suppose that instead of pre-allocating resources to a fairly large VM for hosting containers,<br>
you would only use the resources for the containers that are actually launched, </span>
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:72.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:"Courier New"">o</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">CONs</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:108.0pt;text-indent:-18.0pt"><span style="font-size:11.0pt;font-family:Wingdings">§</span><span style="font-size:7.0pt;font-family:"Times New Roman"">
</span><span style="font-size:11.0pt">for application containers, you are restricted by the OS running on the OpenStack Host,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><i><span style="font-size:11.0pt;color:#1F497D">[Hongbin Lu] Yes, there are pros and cons of either approach, and Zun is not biased on either approach. Instead, Zun aims to support both if it is feasible.</span></i></b><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Greg.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">WIND RIVER </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Titanium Cloud</span><o:p></o:p></p>
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