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<p class="MsoNormal" style="margin-left:36.0pt"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Duan, Li-Gong (Gary, HPServers-Core-OE-PSC)
[mailto:li-gong.duan@hpe.com] <br>
<b>Sent:</b> April-20-16 3:39 AM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> [openstack-dev] [Magnum] Magnum supports 2 Nova flavor to provision minion nodes<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US">Hi Folks,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US">We are considering whether Magnum can supports 2 Nova flavors to provision Kubernetes and other COE minion nodes.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US">This requirement comes from the below use cases:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt"><span lang="EN-US">-</span><span lang="EN-US" style="font-size:7.0pt;font-family:"Times New Roman","serif"">
</span><span lang="EN-US">There are 2 kind of baremetal machines in customer site: one is legacy machines which doesn’t support UEFI secure boot and others are new machines which support UEFI secure boot. User want to use Magnum to provisions a Magnum bay of
Kubernetes from these 2 kind of baremetal machines and for the machines supporting secure boot, user wants to use UEFI secure boot to boot them up. And 2 Kubernetes label(secure-booted and non-secure-booted) are created and User can deploy their data-senstive/cirtical
workload/containers/pods on the baremetal machines which are secure-booted.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US">This requirement requires Magnum to supports 2 Nova flavors(one is “extra_spec: secure_boot=True” and the other doesn’t specify it) based on the Ironic feature(<a href="https://specs.openstack.org/openstack/ironic-specs/specs/kilo-implemented/uefi-secure-boot.html">https://specs.openstack.org/openstack/ironic-specs/specs/kilo-implemented/uefi-secure-boot.html</a>
).<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US">Could you kindly give me some comments on these requirement or whether it is reasonable from your point? If you agree, we can write design spec and implement this feature?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">I think the requirement is reasonable, but I would like to solve the problem in a generic way. In particular, there could be another user who might ask for N nova flavors to provision COE nodes in
the future. A challenge to support N groups of Nova instances is how to express arbitrary number of resource groups (with different flavors) in a Heat template (Magnum uses Heat template to provision COE clusters). Heat doesn’t seem to support the logic of
looping from 1 to N. There could be other challenges/complexities along the way. If the proposed design can address all the challenges and the implementation is clean, I am OK to add support for this feature. Thoughts from others?<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US">Gary<o:p></o:p></span></p>
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