Reboot Required - What triggers/schedules these updates?

[humptydumpty]

I get the reboot required notification on one CR server, but sometimes it takes one another day or more to show up on my second CR server. I'm curious how this works. I know it's Ubuntu server updates, but what triggers these updates? Does the VPS provider control the schedule or Cloudron?

To add more detail: One server is a Contabo VPS, the other is a home server. I used to get the message first on my VPS, but lately it's been my home server that has been getting it first.

[girish]

@humptydumpty I think it's do with ubuntu wanting to restart all the apps so that the libraries they use get updated. See also https://serverfault.com/questions/846478/why-does-ubuntu-want-to-reboot-so-often-after-installing-updates . On linux, one can replace "files" even when they are in use by applications. Only by restarting them, can you make them use the new file (shared libraries in this case).

[humptydumpty]

Thanks for the link, Girish.

I don't want to request a feature if it's just me (or the few; can't emphasize that enough), but I'd like to have a button that would trigger Ubuntu updates. That way, I can apply the latest updates and manually restart the server to get it sorted during the AM hours to minimize the downtime impact. I know this can be done via SSH to the server which is why I'm reluctant to post a feature request for this. How does everyone with multi-servers feel/go about this?

[nebulon]

Security updates are installed automatically and the others should not be updated, as they might interfere with Cloudron required packages. So all in all updates are getting applied and the restart button is basically what you ask for to do this at a time, which works best for you and your user.