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<p class="MsoNormal"><span style="color:#1F497D">Hi team,<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">This is a continued discussion from a review [1]. Corey O'Brien suggested to have Magnum support a single OS distro (Atomic). I disagreed. I think we should bring the discussion to here to get broader set of
inputs. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><i>Corey O'Brien<o:p></o:p></i></p>
<p class="MsoNormal"><i>From the midcycle, we decided we weren't going to continue to support 2 different versions of the k8s template. Instead, we were going to maintain the Fedora Atomic version of k8s and remove the coreos templates from the tree. I don't
think we should continue to develop features for coreos k8s if that is true.<o:p></o:p></i></p>
<p class="MsoNormal"><i>In addition, I don't think we should break the coreos template by adding the trust token as a heat parameter.<o:p></o:p></i></p>
<p class="MsoNormal"><i><o:p> </o:p></i></p>
<p class="MsoNormal"><i>Hongbin Lu<o:p></o:p></i></p>
<p class="MsoNormal"><i>I was on the midcycle and I don't remember any decision to remove CoreOS support. Why you want to remove CoreOS templates from the tree. Please note that this is a very big decision and please discuss it with the team thoughtfully and
make sure everyone agree.<o:p></o:p></i></p>
<p class="MsoNormal"><i><o:p> </o:p></i></p>
<p class="MsoNormal"><i>Corey O'Brien<o:p></o:p></i></p>
<p class="MsoNormal"><i>Removing the coreos templates was a part of the COE drivers decision. Since each COE driver will only support 1 distro+version+coe we discussed which ones to support in tree. The decision was that instead of trying to support every distro
and every version for every coe, the magnum tree would only have support for 1 version of 1 distro for each of the 3 COEs (swarm/docker/mesos). Since we already are going to support Atomic for swarm, removing coreos and keeping Atomic for kubernetes was the
favored choice.<o:p></o:p></i></p>
<p class="MsoNormal"><i><o:p> </o:p></i></p>
<p class="MsoNormal"><i>Hongbin Lu<o:p></o:p></i></p>
<p class="MsoNormal"><i>Strongly disagree. It is a huge risk to support a single distro. The selected distro could die in the future. Who knows. Why make Magnum take this huge risk? Again, the decision of supporting single distro is a very big decision. Please
bring it up to the team and have it discuss thoughtfully before making any decision. Also, Magnum doesn't have to support every distro and every version for every coe, but should support *more than one* popular distro for some COEs (especially for the popular
COEs).<o:p></o:p></i></p>
<p class="MsoNormal"><i><o:p> </o:p></i></p>
<p class="MsoNormal"><i>Corey O'Brien<o:p></o:p></i></p>
<p class="MsoNormal"><i>The discussion at the midcycle started from the idea of adding support for RHEL and CentOS. We all discussed and decided that we wouldn't try to support everything in tree. Magnum would provide support in-tree for 1 per COE and the COE
driver interface would allow others to add support for their preferred distro out of tree.<o:p></o:p></i></p>
<p class="MsoNormal"><i><o:p> </o:p></i></p>
<p class="MsoNormal"><i>Hongbin Lu<o:p></o:p></i></p>
<p class="MsoNormal"><i>I agreed the part that "we wouldn't try to support everything in tree". That doesn't imply the decision to support single distro. Again, support single distro is a huge risk. Why make Magnum take this huge risk?<o:p></o:p></i></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">[1] <a href="https://review.openstack.org/#/c/277284/">
https://review.openstack.org/#/c/277284/</a><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">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Hongbin<o:p></o:p></span></p>
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