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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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[–] atzanteol@sh.itjust.works 2 points 11 months ago* (last edited 11 months ago)

Dude - you gotta get off the snap hate train for a bit.

Do you not understand the difference between "hey, run this rando shell script on the internet" and "hey, use this standardized installer which may run some shell scripts"?

I don't give a shit about all the canonical hate. For me snap does what I want:

Installs things in a standardized way using a standard interface i can easily script with ansible
Provides a similarly standardized way of upgrading and uninstalling that can also be automated easily with ansible
Works "just fine".
Edit - I'll add in a fourth - creates a fucking binary I can run (no flatpak run something.something.something BS)

It's not bash I'm criticizing. Do you understand that? Because stop reading if you don't and go back through my list. I'll wait.

So good - you get that bash isn't the problem. It's the bespoke unstructured installer/upgrader/unisntaller part that is bad. You could write your installer in C, Python, etc. and I'll levy the same complaints. You want me to install your python app? It should be available through pypi and pip. Not some rando bespoke installer.