https://carrondo.pt/en/categories/ubuntu-core/Recent content in Ubuntu Core on Tiago CarrondoHugoenSun, 29 Aug 2021 00:00:00 +0000https://carrondo.pt/en/posts/2021-08-29-create-cronjob-alternative-on-ubuntu-core/Sun, 29 Aug 2021 00:00:00 +0000https://carrondo.pt/en/posts/2021-08-29-create-cronjob-alternative-on-ubuntu-core/<hr> <h2 id="the-task"> The task <a class="heading-link" href="#the-task"> <i class="fa-solid fa-link" aria-hidden="true" title="Link to heading"></i> <span class="sr-only">Link to heading</span> </a> </h2> <p>I need to run a shell script every hour.</p> <h3 id="limitations"> Limitations <a class="heading-link" href="#limitations"> <i class="fa-solid fa-link" aria-hidden="true" title="Link to heading"></i> <span class="sr-only">Link to heading</span> </a> </h3> <ul> <li>Ubuntu Core as a read-only filesystem, only user home folder is writable.</li> </ul> <h3 id="the-basic-concepts"> The basic concepts <a class="heading-link" href="#the-basic-concepts"> <i class="fa-solid fa-link" aria-hidden="true" title="Link to heading"></i> <span class="sr-only">Link to heading</span> </a> </h3> <p>Cronjobs can&rsquo;t be used on a read-only fs. Only snap packages can be installed on Ubuntu core. It is possible to make a snap for this. It is possible to create a systemd user timer.</p>