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

submitted 11 months 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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[–] sunoc@sh.itjust.works 1 points 11 months ago (1 children)

Wow that's a lot of detail and information ! Thank you so much for taking the time to write all of this !

For the note taking part, it should be okay, I'm putting everything in my org-roam notes, including my current Ansible setup and my microOS combustion script!

For the rest, I'll need to try it step by step; at the moment I think my problem is actually how to access the services with Traefik, I guess it will be an important step once I'll figure it out.

Thanks again for the help!

[–] scrubbles@poptalk.scrubbles.tech 1 points 11 months ago

Glad to be of help. It is the right decision, I have no regrets if migrating, but it is a long process. Just getting my first few services running was months, just so you are aware of that commitment, but it's worth it.