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From Docker with Ansible to k3s: I don't get it... (sh.itjust.works)

submitted 12 hours ago by sunoc@sh.itjust.works to c/selfhosted@lemmy.world

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Hey! I have been using Ansible to deploy Dockers for a few services on my Raspberry Pi for a while now and it's working great, but I want to learn MOAR and I need help...

Recently, I've been considering migrating to bare metal K3S for a few reasons:

To learn and actually practice K8S.
To have redundancy and to try HA.
My RPi are all already running on MicroOS, so it kind of make sense to me to try other SUSE stuff (?)
Maybe eventually being able to manage my two separated servers locations with a neat k3s + Tailscale setup!

Here is my problem: I don't understand how things are supposed to be done. All the examples I find feel wrong. More specifically:

Am I really supposed to have a collection of small yaml files for everything, that I use with kubectl apply -f ?? It feels wrong and way too "by hand"! Is there a more scripted way to do it? Should I stay with everything in Ansible ??
I see little to no example on how to deploy the service containers I want (pihole, navidrome, etc.) to a cluster, unlike docker-compose examples that can be found everywhere. Am I looking for the wrong thing?
Even official doc seems broken. Am I really supposed to run many helm commands (some of them how just fails) and try and get ssl certs just to have Rancher and its dashboard ?!

I feel that having a K3S + Traefik + Longhorn + Rancher on MicroOS should be straightforward, but it's really not.

It's very much a noob question, but I really want to understand what I am doing wrong. I'm really looking for advice and especially configuration examples that I could try to copy, use and modify!

Thanks in advance,

Cheers!

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[–] moonpiedumplings@programming.dev 2 points 10 hours ago (1 children)

garden seems similar to GitOps solutions like ArgoCD or FluxCD for deploying helm charts.

Here is an example of authentik deployed using helm and fluxcd.

[–] towerful@programming.dev 1 points 9 hours ago (1 children)

Interesting, I might check them out.
I liked garden because it was "for kubernetes". It was a horse and it had its course.
I had the wrong assumption that all those CD tools were specifically tailored to run as workers in a deployment pipeline.

I'm willing to re-evaluate my deployment stack, tbh.
I'll definitely dig more into flux and ansible.
Thanks!

[–] moonpiedumplings@programming.dev 2 points 9 hours ago

that all those CD tools were specifically tailored to run as workers in a deployment pipeline

That's CI 🙃

Confusing terms, but yeah. With ArgoCD and FluxCD, they just read from a git repo and apply it to the cluster. In my linked git repo, flux is used to install "helmreleases" but argo has something similar.