I want to reset my server soon and I’m toying with the idea of using a different operating system. I am currently using Ubuntu Server LTS. However, I have been toying with the idea of using Fedora Server (I use Fedora on my laptop and made good experiences with it) or even Fedora CoreOS. I also recently installed NixOS on my desktop computer and find the declarativeness pretty cool (but I’m still a complete beginner) and could imagine that it would fit well into a server setup.

I have quite a few services running on my server, such as Nextcloud, Conduit (Matrix), Jellyfin, etc. and all in containers. I would also rather not install programs without containers, because 1. compose is super easy to maintain and set up, 2. it remains very clear with containers (and compose) and 3. I believe that containers are more secure. But since I also want to make the services inside the containers available, I currently have Nginx installed as a reverse proxy (not in the container, but on the system) and always create certificates with certbot so that I can use HTTPS encryption.

In the paragraph above I actually described exactly the use-case of Fedora CoreOS, but I have no experience with the system and how it works. That’s why I’m still a bit hesitant at considering the OS at the moment. I can imagine that NixOS with its declarative nature seems well suited, since, as I have heard, you can configure containers as well as Nginx and with Nginx also https certificates declaratively. But I could also use a base system like before (Fedora Server or Ubuntu Server) and simply install podman, nginx and certbot and manage everything that way.

Have you had any experience with Fedora Server, Fedora CoreOS, NixOS or a completely different operating system for servers and what are/were your impressions with this setup? Or do you just want to share your knowledge here? I would be delighted.

  • MoritzOPEnglish
    1•9 months ago

    I’d recommend it, but would also recommend taking a look at Flatcar Linux which is more or less the same without the IBM dependency (which makes my stomach hurt sometimes).

    Why exactly are the IBM dependencies a problem for you?

    I used debian before for some years, but at some point became tired of manually updating the system (which is probably one of the biggest benefit of FCOS). It takes, however, quite some time to put your first Ignition config together, and debugging is tedious as you have to redeploy to see if a bug / error is now gone (I’ve used a VM for that).

    I can’t really find good resources on how FCOS is working and what are the benefits. Is it updating the system/kernel automatically as well as the containers? And what are generally, in your opinion, the advantages of FCOS?

    • @[email protected]English
      2•9 months ago

      Why exactly are the IBM dependencies a problem for you?

      I guess I just like independent, community-driven distros, since there’s less space for financially motivated enshittification. Just shortly after I decided to go with FCOS, RedHat / IBM decided to close down CentOS, for example.

      I can’t really find good resources on how FCOS is working and what are the benefits. Is it updating the system/kernel automatically as well as the containers?

      The system & kernel yes. The whole system is basically a read-only system “image” for which the devs make sure all the packages play nicely together. Packages are not updated individually, but whole system “image” are released periodically, which the system then downloads automatically and reboots (you decide when it actually reboots through the config). If anything goes wrong, the system is rolled back to the previous “image”.

      When you go with podman, there’s a systemd service you can enable which will update the containers (i.e. pull the specified image tag). I’m not aware of a similar mechanism for Docker, which is why I use watchtower for that which has been working smoothly so far.

      Edit:

      And what are generally, in your opinion, the advantages of FCOS?

      For me, it’s the (quite safely designed) auto-updates of the base system (I just feel like having to do less repetitive work), infrastructure-as-code aspect, and the container mindset (as I containerize everything anyways). Also I just have a weakness for new, fancy stuff.

      • MoritzOPEnglish
        2•8 months ago

        Thanks, I might give it a try. I am not settled yet but FCOS sounds very promising. We will see.