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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Good question about how the smaller devices have their power managed.<o:p></o:p></span></p>
<p class="MsoNormal"><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">Actually stepping back a bit,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">i am now thinking that perhaps i am thinking of a USE CASE that is NOT the typical IRONIC USE CASE.<o:p></o:p></span></p>
<p class="MsoNormal"><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">i.e.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">I think the ‘typical’ IRONIC USE CASE is that there are a pool of physical servers<br>
that are available to run requested Instances/Images on.<o:p></o:p></span></p>
<p class="MsoNormal"><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">However,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">the USE CASE that i am thinking of is where there are ‘DEDICATED’ physical servers<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">deployed for specific purposes where I was thinking of using IRONIC to
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manage the Images running on these servers.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">( This is for say a Industrial / Control type scenario )<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">( It’s sort of using IRONIC as simply a generic boot server ... of bare metal servers )<o:p></o:p></span></p>
<p class="MsoNormal"><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">Any comments on whether it makes sense to do this with Ironic ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Is there an alternative OpenStack project to do this sort of thing ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">( in my use case, the end user is already using OpenStack in a traditional sense for<br>
VMs on compute nodes ... but would like to extend the solution to manage images
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on bare metal servers )<o:p></o:p></span></p>
<p class="MsoNormal"><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">Comments ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Greg.<o:p></o:p></span></p>
<p class="MsoNormal"><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">Ilya Etingof <ietingof@redhat.com><br>
<b>Organization: </b>Red Hat Inc.<br>
<b>Date: </b>Tuesday, November 21, 2017 at 11:37 AM<br>
<b>To: </b>"openstack-dev@lists.openstack.org" <openstack-dev@lists.openstack.org>, Greg Waines <Greg.Waines@windriver.com><br>
<b>Cc: </b>"Nasir, Shoaib" <Shoaib.Nasir@windriver.com><br>
<b>Subject: </b>Re: [openstack-dev] [ironic] Question about pxe_ssh drivers<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"><o:p> </o:p></p>
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<p class="MsoNormal">Hi Greg,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">How do these smaller devices allow you to manage their power state?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Typically you have a side-computer (AKA bare-metal controller) which is<o:p></o:p></p>
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<p class="MsoNormal">always up so you can talk to it (via IPMI/Redfish/SNMP/ssh) to manage<o:p></o:p></p>
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<p class="MsoNormal">power state of its big brother.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">The pxe_ssh driver is about libvirt VMs simulating bare-metal nodes. I<o:p></o:p></p>
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<p class="MsoNormal">am not sure this is what you need. Also, pxe_ssh driver is obsoleted by<o:p></o:p></p>
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<p class="MsoNormal">the virtualbmc proxy by now.<o:p></o:p></p>
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<p class="MsoNormal"><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 11/21/2017 05:22 PM, Waines, Greg wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hey,<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">We have been integrating OpenStack Ironic into our own OpenStack<o:p></o:p></p>
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<p class="MsoNormal">Distribution.<o:p></o:p></p>
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<p class="MsoNormal">Thanks to help from the mailing list, we’ve been able to successfully<o:p></o:p></p>
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<p class="MsoNormal">‘nova boot’ a bare metal instance on an ironic node using the<o:p></o:p></p>
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<p class="MsoNormal">pxe_ipmitool drivers.<o:p></o:p></p>
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<p class="MsoNormal">Thanks again for all the help.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">A QUESTION about some future work we are starting to look at.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">We are interested in using Ironic to boot smaller devices that do NOT<o:p></o:p></p>
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<p class="MsoNormal">support IPMI.<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 believe that there are other drivers such as pxe_ssh for managing<o:p></o:p></p>
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<p class="MsoNormal">resets and power on/off of such servers.<o:p></o:p></p>
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<p class="MsoNormal">But i don’t understand how these work at a high-level.<o:p></o:p></p>
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<p class="MsoNormal">e.g.<o:p></o:p></p>
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<p class="MsoNormal">- where do the pxe_ssh drivers SSH to ?<o:p></o:p></p>
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<p class="MsoNormal"> > for reset, i suppose it could be the ironic node itself (if<o:p></o:p></p>
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<p class="MsoNormal">it’s actually running a load, like the deployment image)<o:p></o:p></p>
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<p class="MsoNormal"> > but for power on/off ... it can’t be the ironic node itself<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Can somebody provide or point me to a brief explanation of how Ironic<o:p></o:p></p>
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<p class="MsoNormal">can be used for<o:p></o:p></p>
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<p class="MsoNormal">serving loads to devices NOT supporting IPMI ?<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">thanks in advance,<o:p></o:p></p>
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<p class="MsoNormal">Greg<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">__________________________________________________________________________<o:p></o:p></p>
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<p class="MsoNormal">OpenStack Development Mailing List (not for usage questions)<o:p></o:p></p>
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<p class="MsoNormal">Unsubscribe: <a href="mailto:OpenStack-dev-request@lists.openstack.org">
OpenStack-dev-request@lists.openstack.org</a>?subject:unsubscribe<o:p></o:p></p>
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<p class="MsoNormal"><a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev</a><o:p></o:p></p>
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