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<span style="font-weight:bold">From: </span>Jay Lau <<a href="mailto:jay.lau.513@gmail.com">jay.lau.513@gmail.com</a>><br>
<span style="font-weight:bold">Reply-To: </span>OpenStack Development Mailing List <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br>
<span style="font-weight:bold">Date: </span>Wednesday, November 25, 2015 at 3:15 PM<br>
<span style="font-weight:bold">To: </span>OpenStack Development Mailing List <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>><br>
<span style="font-weight:bold">Subject: </span>[openstack-dev] [magnum] Using docker container to run COE daemons<br>
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<div>Hi,<br>
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<div>It is becoming more and more popular to use docker container run some applications, so what about leveraging this in Magnum?</div>
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<div>What I want to do is that we can put all COE daemons running in docker containers, because now Kubernetes, Mesos and Swarm support running in docker container and there are already some existing docker images/dockerfiles which we can leverage.</div>
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<div>Jay,</div>
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<div>It is my understanding that we have blueprints to address this topic:</div>
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<div><a href="https://blueprints.launchpad.net/magnum/+spec/run-kube-as-container">https://blueprints.launchpad.net/magnum/+spec/run-kube-as-container</a></div>
<div><a href="https://blueprints.launchpad.net/magnum/+spec/mesos-in-container">https://blueprints.launchpad.net/magnum/+spec/mesos-in-container</a></div>
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<div>In addition to the COE daemons, the run-kube-as-a-container blueprint will address additional processes such as etcd and flannel. Swarm-agent/manager is already running as containers.</div>
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<div>So what about update all COE templates to use docker container to run COE daemons and maintain some dockerfiles for different COEs in Magnum? This can reduce the maintain effort for COE as if there are new versions and we want to upgrade, just update the
dockerfile is enough. Comments?</div>
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<div>I would expect the templates to be updated as part of the blueprints above. As with the swarm template, I believe each coe service would correlate to a systemd unit file that specifies a docker pull/run of a specific image.</div>
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<div>Thanks,<br>
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Jay Lau (Guangya Liu)<br>
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