There's nothing so special about weechat that it wouldn't work and you can just exec into the container and attach to tmux.
Running tmux/screen inside a container is definitely cursed, but, it works surprisingly well.
And at that point, it may as well just be a normal Ubuntu server.
I would personally consider that a bit of an anti-pattern (I would always want to have software upgrades tied to the container) but that makes sense!
Basically 3 paths for:
- things with well-maintained upstream helm charts (checks the latest version of the helm chart and updates helmfile)
- things where I wrote a helm chart (checks for the latest container image and updates the values.yaml)
- things where there is no (reasonable) public docker image, or my own software, where I have full CI/CD to build and deploy a new container image.
Probably takes me 15 minutes a week to keep my two personal clusters fully up-to-date.
docker run -itd ubuntu:24.04
...
docker exec -it df36 /bin/bash
...
root@df365a3d2257:/# apt update
...
root@df365a3d2257:/# apt upgrade
...