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<p class="MsoNormal"><span style="color:#1F497D">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> Is there a way for the VM to identify that it is getting booted in OpenStack?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> As said in the below mail, once the VM knows it is booting in OpenStack it will alter the boot sequence.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> AWS provides signatures in the BIOS strings.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">PS:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Changed the title to be more friendly.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Vijay V.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Vijay Venkatachalam [mailto:Vijay.Venkatachalam@citrix.com]
<br>
<b>Sent:</b> Tuesday, November 26, 2013 8:58 PM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> Re: [openstack-dev] [Nova] Are BIOS strings configured in Hyper-V & ESX similar to KVM instantiated VMs?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">It is basically used to tailor the boot sequence if the VM gets booted in OpenStack. For ex. it could do the following<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">Get IP through DHCP if booted in OpenStack<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">Read config drive or contact metadata service and init the system if booted in OpenStack<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Vijay V.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Bob Ball [<a href="mailto:bob.ball@citrix.com">mailto:bob.ball@citrix.com</a>]
<br>
<b>Sent:</b> Tuesday, November 26, 2013 7:25 PM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> Re: [openstack-dev] [Nova] Are BIOS strings configured in Hyper-V & ESX similar to KVM instantiated VMs?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">It’s not certain that this will be implemented for the XenAPI driver.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Our view is that the BIOS strings shouldn’t be relied upon – the hypervisor can clearly set them to anything so it’s not really a reliable way to configure the application. Also note that in some
scenarios, such as PV guests in Xen clouds, you will not have any BIOS to query. Finally we’re not clear on the use case here - What’s the use case for needing to know whether you VM is running under OpenStack or not?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Bob<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"></a><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Vijay Venkatachalam [<a href="mailto:Vijay.Venkatachalam@citrix.com">mailto:Vijay.Venkatachalam@citrix.com</a>]
<br>
<b>Sent:</b> 26 November 2013 01:44<br>
<b>To:</b> OpenStack Development Mailing List (<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>)<br>
<b>Subject:</b> [openstack-dev] [Nova] Are BIOS strings configured in Hyper-V & ESX similar to KVM instantiated VMs?<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In a KVM instantiated VM the following signature is present in the BIOS of the VM<o:p></o:p></p>
<p class="MsoNormal">The ‘Manufacturer ‘ field in ‘System Information’ group is set to “OpenStack Foundation”<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">This helps the VM to identify that it is getting used in an OpenStack environment.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">As far as I know XenServer is planning to set the BIOS Strings in IceHouse release.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Is this functionality available in other Hypervisors, especially Hyper-V & ESX?<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Thanks,<o:p></o:p></p>
<p class="MsoPlainText">Vijay V.<o:p></o:p></p>
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