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Alternatives to RancherOS? (lemm.ee)

submitted 1 year ago by matto@lemm.ee to c/selfhosted@lemmy.world

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Hi all!

I've been using RancherOS for years as the minimal OS to host all of my containers and it's been working great. Until today.

I updated Redis to its latest version, and got some errors. After some investigation I found that in needs Docker 20 or higher to run. RancherOS has been abandoned, and the latest version you can install is 19.

Do you fine folks know something similar to RancherOS? Thanks!

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[–] matto@lemm.ee 2 points 1 year ago (1 children)

Hello again! I am trying Flatcar, and I really like the concept. I had not used immutable distros before. I have a question: How can I apply changes to the configuration? I have a YAML file with the butane config and transpile it to a JSON file with the ignition configuration. How do I apply that new configuration? Do I have to delete the VM and start over again, or is there a way to update it inside the VM? I looked around in the official docs, but did not find anything :(

[–] scimek@ttrpg.network 2 points 1 year ago* (last edited 1 year ago) (1 children)

I am not using it with immutable config, so the only thing flatcar is doing is it has an A and a B partition for /usr that it switches between on updates (such that it can always rollback to the last working system).

I only used ignition for the initial setup, after that I just ssh in to the machine and change systemd services via /etc/systemd/system (such as added new mounts, using systemd unit's for running docker containers etc.)

Adding a user is initially done: https://www.flatcar.org/docs/latest/setup/customization/adding-users/

The idea is that all software you need to run except for systemd and some utilities (more or less what is in busybox) are run in containers, which i think was the same deal with RancerOS.

[–] matto@lemm.ee 1 points 1 year ago

Gotcha. Thanks!