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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">When you say stripped down you mean bare essentials in the kernel?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Jonathan<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Beowulf <beowulf-bounces@beowulf.org>
<b>On Behalf Of </b>Alexander Antoniades<br>
<b>Sent:</b> 23 May 2019 21:59<br>
<b>To:</b> Jan Wender <j.wender@web.de><br>
<b>Cc:</b> beowulf@beowulf.org<br>
<b>Subject:</b> Re: [Beowulf] Containers in HPC<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Red Hat re-implemented the Docker using the Open Container Spec (which is as far as I know a standard based on Docker) as a project called CRI-O <a href="https://cri-o.io/">https://cri-o.io/</a> which removes the need for a daemon to run
containers and rectifies a lot of the security concerns by dividing the work of the daemon into multiple tools. As of RHEL/Centos 7.7 and 8+ they allow for running containers without root using that tool.<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 lot of the security concerns apply more to regular servers which are running Docker (or others) vs purpose build container hosting servers which can be stripped down and hardened. <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,<o:p></o:p></p>
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<p class="MsoNormal"><br>
Sander<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 Thu, May 23, 2019 at 3:03 PM Jan Wender <<a href="mailto:j.wender@web.de">j.wender@web.de</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hi,<br>
<br>
> Am 23.05.2019 um 15:06 schrieb Gerald Henriksen <<a href="mailto:ghenriks@gmail.com" target="_blank">ghenriks@gmail.com</a>>:<br>
> <br>
> security concerns about Docker<br>
<br>
One of the issues is that execution of a Docker container requires to be started as root, which can be done for services etc, but not for user processes. But I think that Docker is working on changing that requirement.
<br>
<br>
Best, Jan<br>
-- <br>
Jan Wender - <a href="mailto:j.wender@web.de" target="_blank">j.wender@web.de</a><br>
<br>
<br>
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