<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=Windows-1252"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang="EN-US" link="blue" vlink="purple" style="word-wrap:break-word"> <div class="WordSection1"> <p class="MsoNormal"><span style="font-size:11.0pt">Lennart has a good blog about this. <a href="https://0pointer.net/blog/fitting-everything-together.html">https://0pointer.net/blog/fitting-everything-together.html</a><o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt">Especially the paragraph starting with: “Of course, the lines between these three types of modules are blurry, but I think distinguishing them does make sense, as I think different mechanisms are appropriate for each. So here's what I'd propose in my model to use for this.”<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt">Thanks<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt">Umut<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p> <div id="mail-editor-reference-message-container"> <div> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"> <p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">systemd-devel <systemd-devel-bounces@lists.freedesktop.org> on behalf of Sopena Ballesteros Manuel <manuel.sopena@cscs.ch><br> <b>Date: </b>Saturday, 25 January 2025 at 17:57<br> <b>To: </b>systemd-devel@lists.freedesktop.org <systemd-devel@lists.freedesktop.org><br> <b>Subject: </b>[systemd-devel] systemd portable services vs systemd-sysext<o:p></o:p></span></p> </div> <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" align="left" width="100%" 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0in;background:revert!important;border:revert!important;bottom:revert!important;color:revert!important;direction:revert!important;display:revert!important;font-size:revert!important;height:revert!important;letter-spacing:revert!important;line-height:revert!important;margin:revert!important;opacity:revert!important;order:revert!important;outline:revert!important;overflow:revert!important;padding:revert!important;position:revert!important;tab-size:revert!important;table-layout:revert!important;text-align:revert!important;text-indent:revert!important;text-orientation:revert!important;text-overflow:revert!important;text-transform:revert!important;top:revert!important;vertical-align:revert!important;visibility:revert!important;white-space:revert!important;width:revert!important;word-break:revert!important;word-spacing:revert!important;writing-mode:revert!important;zoom:revert!important;width:100%!important;background-color:#EAEAEA!important;padding:15px!important;font-size:12px!important;font-weight:normal!important;color:#212121!important;text-align:left!important;word-wrap:break-word!important"> <div> <p class="MsoNormal" style="mso-element:frame;mso-element-frame-hspace:2.25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column;mso-height-rule:exactly"> <span style="font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black">Some people who received this message don't often get email from manuel.sopena@cscs.ch. <a href="https://aka.ms/LearnAboutSenderIdentification">Learn why this is important</a> </span><span style="font-size:12.0pt;font-family:"Segoe UI",sans-serif"><o:p></o:p></span></p> </div> </td> <td style="background:#EAEAEA;padding:0in 0in 0in 0in;background:revert!important;border:revert!important;bottom:revert!important;color:revert!important;direction:revert!important;display:revert!important;font-size:revert!important;height:revert!important;letter-spacing:revert!important;line-height:revert!important;margin:revert!important;opacity:revert!important;order:revert!important;outline:revert!important;overflow:revert!important;padding:revert!important;position:revert!important;tab-size:revert!important;table-layout:revert!important;text-align:revert!important;text-indent:revert!important;text-orientation:revert!important;text-overflow:revert!important;text-transform:revert!important;top:revert!important;vertical-align:revert!important;visibility:revert!important;white-space:revert!important;width:revert!important;word-break:revert!important;word-spacing:revert!important;writing-mode:revert!important;zoom:revert!important;width:75px!important;background-color:#EAEAEA!important;padding:5px!important;font-size:12px!important;font-weight:normal!important;color:#212121!important;text-align:left!important;word-wrap:break-word!important"> </td> </tr> </tbody> </table> <div> <div> <p class="MsoNormal"><span style="font-size:12.0pt;color:black">Dear systemd community,<o:p></o:p></span></p> </div> <div style="margin-top:12.0pt;margin-bottom:12.0pt"> <p class="MsoNormal"><span style="font-size:12.0pt;color:black">I’m a sysadmin currently learning Linux and systemd, and I’m exploring technologies that allow me to add and remove applications to my system’s root filesystem in a plug-and-play fashion. I’m avoiding containers because I need a higher level of integration with the system, and the abstraction containers provide doesn’t align with my needs.<o:p></o:p></span></p> </div> <div style="margin-top:12.0pt;margin-bottom:12.0pt"> <p class="MsoNormal"><span style="font-size:12.0pt;color:black">As I learn more about systemd, I came across systemd portable services and systemd-sysext while researching solutions to my problem. From my understanding, sysext leverages OverlayFS, while portable services seem to function more like a chroot environment with additional functionality. Although they appear to have similar use cases, I’m having trouble deciding between the two.<o:p></o:p></span></p> </div> <div style="margin-top:12.0pt;margin-bottom:12.0pt"> <p class="MsoNormal"><span style="font-size:12.0pt;color:black">Could anyone provide clarification on the specific scenarios where one solution would be more appropriate than the other?<o:p></o:p></span></p> </div> <div style="margin-top:12.0pt;margin-bottom:12.0pt"> <p class="MsoNormal"><span style="font-size:12.0pt;color:black">Thank you very much for your time and assistance!<o:p></o:p></span></p> </div> <div style="margin-top:12.0pt;margin-bottom:12.0pt"> <p class="MsoNormal"><span style="font-size:12.0pt;color:black">Best regards,<o:p></o:p></span></p> </div> <div> <p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p> </div> </div> </div> </div> </div> </div> </body> </html>