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<span style="font-weight:bold">From: </span>"Mooney, Sean K" <<a href="mailto:sean.k.mooney@intel.com">sean.k.mooney@intel.com</a>><br>
<span style="font-weight:bold">Date: </span>Friday, May 13, 2016 at 2:14 PM<br>
<span style="font-weight:bold">To: </span>"OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>>, Steven Dake <<a href="mailto:stdake@cisco.com">stdake@cisco.com</a>>,
 "<a href="mailto:devananda.vdv@gmail.com">devananda.vdv@gmail.com</a>" <<a href="mailto:devananda.vdv@gmail.com">devananda.vdv@gmail.com</a>><br>
<span style="font-weight:bold">Cc: </span>"Mooney, Sean K" <<a href="mailto:sean.k.mooney@intel.com">sean.k.mooney@intel.com</a>><br>
<span style="font-weight:bold">Subject: </span>[openstack-dev] [kolla] [bifrost] bifrost container poc update<br>
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<p class="MsoNormal">Hi this is an  update on where I am with my poc of creating a bifost container for kolla.<o:p></o:p></p>
<p class="MsoNormal">As of  Wednesday evening I have reached my v0 poc goal<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">That goal was to demonstrate it was easy bifrost in a container with little to know changes.<o:p></o:p></p>
<p class="MsoNormal">This is further broken down as follows.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Create poc patch to split bifrost ironic install role into install, bootstrap and start phases<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Use kolla build.py to build a container with all bifrost/ironic dependences installed by running<br>
bifrost install phase as part of the docker build<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Spawn an instance of the resulting container then bootstrap and start ironic by running bifrost install playbook  with only the bootstrap and run phases enabled<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Enroll a physical node using the enroll-dynamic playbook<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Deploy the default OS image to the physical node using the deploy-dynamic playbook
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The attached file assume basic knowledge of how to build images with kola and documents how the command I
<o:p></o:p></p>
<p class="MsoNormal">Ran to preform this poc.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Limitations of v0:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Only tested with centos source build<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Fat container. Uses systemd as an init system in the container. (yes this works fine)<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Requires privileged (required for networking and  mounting loopback devices)<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Requires net=host (as an infrastructure container on the undercloud this shold be ok)<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Requires /sys/fs/cgroups to be bind mounted for systemd<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Requires /dev to be bind mounted  to allow building of Baremetal image<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->No integration with kola deploy playbooks or script to automate deployment (fix in v1)<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->No support for external config (fix in v1)<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->I wrote it in 12-18 hours so no comments or docs except the attachment<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style=""><span style="mso-list:Ignore">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';">       
</span></span></span><!--[endif]-->Ironic service done restart automatically on restarting container.( rerun install playbook with skip_boostrap=true and skip_install=true to fix)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Next steps:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Define scope of v1<o:p></o:p></p>
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</span></span></span><!--[endif]-->Should I open a blueprint/spec/bug in kolla and or bifrost?<o:p></o:p></p>
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</span></span></span><!--[endif]-->Kolla spec to cover container and ansible integration (<a href="https://github.com/SeanMooney/kolla/commit/bbbfc573dcd8e20ad912dedeecc0b3994832925f">https://github.com/SeanMooney/kolla/commit/bbbfc573dcd8e20ad912dedeecc0b3994832925f</a>)<o:p></o:p></p>
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</span></span></span><!--[endif]-->Support builds of bifrost container both source and binary with all 4 base OS<o:p></o:p></p>
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</span></span></span><!--[endif]-->Support baremetal image customization via external config. (os,packages) and bring your own model to supply your own image.<o:p></o:p></p>
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</span></span></span><!--[endif]-->Integrate with kolla deploy playbooks.<o:p></o:p></p>
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</span></span></span><!--[endif]-->Add bifrost.rst to kolla docs <o:p></o:p></p>
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</span></span></span><!--[endif]-->Thin containers or supervisord as a v2<o:p></o:p></p>
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</span></span></span><!--[endif]-->Bifrost spec to cover ironic install  decomposition  (<a href="https://github.com/SeanMooney/bifrost/commit/e223f4fe73871b76ce87999470a1efc43862671e">https://github.com/SeanMooney/bifrost/commit/e223f4fe73871b76ce87999470a1efc43862671e</a>)<o:p></o:p></p>
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</span></span></span><!--[endif]-->Split install ironic playbook into 3 phases (install,bootstarp,start)<o:p></o:p></p>
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</span></span></span><!--[endif]-->possible solutions. Skip_* as in poc, separate roles or tags<o:p></o:p></p>
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</span></span></span><!--[endif]-->Replace use of sed for fixing hostname as it fails in a container
<br>
(<a href="https://github.com/openstack/bifrost/blob/master/playbooks/roles/bifrost-ironic-install/tasks/main.yml#L117-L123">https://github.com/openstack/bifrost/blob/master/playbooks/roles/bifrost-ironic-install/tasks/main.yml#L117-L123</a>)<o:p></o:p></p>
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</span></span></span><!--[endif]-->Introduce install_dib  to control if disk image build is installed of checking if the image should be built.<o:p></o:p></p>
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</span></span></span><!--[endif]-->Testing: kolla ci job? Test in bifrost ci?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So this is the point I pause for feedback:<o:p></o:p></p>
<p class="MsoNormal">Does this sound like a reasonable next step?<o:p></o:p></p>
<p class="MsoNormal">Am I going in the wrong direction with this?<o:p></o:p></p>
<p class="MsoNormal">If I create spec or when I submit the code for review would anyone in particular like me to add them as reviewers?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards<o:p></o:p></p>
<p class="MsoNormal">Seán</p>
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<div>Sean,</div>
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<div>Nice job!</div>
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<div>Kolla doesn't typically require specs for most work, and I believe this type of work would fall into the non-spec category.  A blueprint would do.</div>
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<div>Thanks</div>
<div>-steve</div>
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