Automatic security updates on Cloudron 8/Ubuntu 24.04

[adhodgson]

Hi.
I've just logged into my machine after a few weeks of upgrading to Cloudron 8.0 on Ubuntu 24.04 (to check Cloudron 8.2 upgrade) and noticed I had some kernel and security updates pending. I then realised Cloudron hasn't nagged me about a system reboot since I did the migration. This is a fresh Ubuntu 24.04 install and I used the restore option in Cloudron.
What do I need to check to identify whether this is working correctly?
Thanks.
Andrew.

[nebulon]

Cloudron uses the ubuntu/debian feature to notify for required reboots. This is signaled by the system via existance of /var/run/reboot-required https://www.debian.org/doc/debian-policy/ch-opersys.html#signaling-that-a-reboot-is-required

[adhodgson]

Thanks for this. I know how the reboot notifications get triggered, but I don't believe my system is pulling in security updates in the first place. My understanding is that Cloudron configures Apt to pull in security updates automatically. How can I verify whether this is happening or not? This used to happen on my previous Hetzner server image, but this time I did a clean install of Ubuntu 24.04 from a minimal ISO install.

[joseph]

@adhodgson the ubuntu unattended upgrade logs are under /var/log/unattended-upgrades/ . For example, /var/log/unattended-upgrades/unattended-upgrades.log. Anything in those files?

[adhodgson]

Ok that file is showing regular checks but no packages marked for upgrade. I will keep an eye on this. Thanks for the support.