Installing and updating sysexts

Using systemd-sysupdate

You can currently install and update those sysexts using systemd-sysupdate. See each sysext individual page for instructions.

Experimental standalone sysexts-manager

A standalone sysexts manager is being developed to manage, download and update sysexts with a more user friendly interface. See travier/sysexts-manager for the work in progress. Note that this project is experimental right now.

Integration with bootc / Bootable Containers

The planned user experience for using those sysexts on Bootable Container systems is that they are built as container layers, pushed to a registry as distinct tags, downloaded, managed and updated in sync with the OS by bootc. See: bootc#7 and README.containers.md. This integration is currently still a work in progress.

Installing directly via Ignition

On Fedora CoreOS, you can also directly download the sysexts images as files via Ignition. Here is an example Butane config:

variant: fcos
version: 1.5.0
storage:
  files:
      # Make sure to name your sysext as <sysext-name>.raw, without the version here
    - path: "/var/lib/extensions/kubernetes-cri-o-1.32.raw"
      contents:
        # Use the full URL with the version to download the sysext
        source: "https://extensions.fcos.fr/extensions/kubernetes-cri-o-1.32/kubernetes-cri-o-1.32-1.32.3-1.fc42-42-x86-64.raw"
systemd:
  units:
    # Enable systemd-sysext.service to merge the sysexts on boot
    - name: systemd-sysext.service
      enabled: true
    # We will use CRI-O
    - name: docker.socket
      enabled: false
      mask: true

For more examples, see: