Currently, I run Unraid and have all of my services’ setup there as docker containers. While this is nice and easy to setup initially, it has some major downsides:
- It’s fragile. Unraid is prone to bugs/crashes with docker that take down my containers. It’s also not resilient so when things break I have to log in and fiddle.
- It’s mutable. I can’t use any infrastructure-as-code tools like terraform, and configuration sort of just exist in the UI. I can’t really roll back or recover easily.
- It’s single-node. Everything is tied to my one big server that runs the NAS, but I’d rather have the NAS as a separate fairly low-power appliance and then have a separate machine to handle things like VMs and containers.
So I’m looking ahead and thinking about what the next iteration of my homelab will look like. While I like unraid for the storage stuff, I’m a little tired of wrangling it into a container orchestrator and hypervisor, and I think this year I’ll split that job out to a dedicated machine. I’m comfortable with, and in fact prefer, IaC over fancy UIs and so would love to be able to use terraform or Pulumi or something like that. I would prefer something multi-node, as I want to be able to tie multiple machines together. And I want something that is fault-tolerant, as I host services for friends and family that currently require a lot of manual intervention to fix when they go down.
So the question is: how do you all do this? Kubernetes, docker-compose, Hashicorp Nomad? Do you run k3s, Harvester, or what? I’d love to get an idea of what people are doing and why, so I can get some ideas as to what I might do.
Podman pods + systemd units to manage pods lifecycle. Ansible to deploy the base OS requirements, the ancillary services (SSH, backups, monitoring…), and the pods/containers/services themselves.
A plug for the pro Kubernetes crowd:
I run microk8s on a 3 node cluster, using FluxCD to deploy and manage my services. I also work with Kubernetes at work, so I’m very familiar with the concepts. But I will never use anything else.
If you want maximum control and flexibility, learn Kubernetes. For a lot of people (myself included) it’s overkill, but IMO it’s the best.
My main gripe with docker-compose, which is what I used to use, is that service changes require access to the machine. I have to run commands on the host to alter services. With Kubernetes, and more precisely a GitOps model, you can just make a commit to a git repo and it will roll out.
Yes very true, I really would much prefer GitOps as I feel… uneasy about how handwired and ephemeral my current setup is and would love it to be more declarative and idempotent. It does seem like Kubernetes is the way to do that.
I am happy with my simple docker-compose setup - one root folder with one subfolder per project containing the compose file and any configuration mounted into the container. Traefik automatically exposes all services I want under a well-known URL using a single line in each compose file. Watchtower updates the containers.
This has been running stable for over two years with probably 2-3 reboots in between. If my current NUC ever breaks I’ll set it up again using Podman instead of Docker, but aside from that I couldn’t be happier!
This seems like a sensible choice, but it would be a bit messy for multi-node which is the direction I’m heading in
I was familiar with just organise my docker-compose containers without any frontend. But I discovered casaOS, which make things pretty simple. An AppStore and a SMB-Shared File manager gave me a really good workflow. Things that aren’t on the AppStore can be handled outside of Casa, too.
PS. But never make the mistake to integrate the outside handled containers, this mess things up.
Thanks, yeah I’ve heard good things about casaOS. I think that I’m trying to move in the other direction though: fewer UI’s and more CLI’s + Configuration files.
I would stay away from kubernets/k3/k8s. Unless you want to learn it for work purposes, it’s so overkill you can spend a month before you get things running. I know from experience. My current setup gives you options and has been reliable for me.
NAS Box: Truenas Scale - You can have UnRaid fill this role.
Services Hosting: Proxmox - I can spin up any VMs I need and lots of info online to do things like hardware passthrough to VMs.
Containers: Debian VM - Debian makes a great server environment as it’s stable and well supported. I just make this VM a docker swarm host. I managed things with Portainer for a web interface.
I keep data on the NAS and have containers access it over the network. Usually a NFS share.
How do you manage your services on that, docker compose files? I’m really trying to get away from the workflow of clicking around in some UI to configure everything, only for it to glitch out and disappear and I have to try and remember what things to click to get it back. It was my main problem with portainer that caused me to move away from it (I have separate issues with docker-compose but that’s another thing)
I personally stepped away from compose. You mentioned that you want a more declarative setup. Give Ansible a try. It is primarily for config management, but you can easily deploy containerized apps and correlate configs, hosts etc.
I usually write roles for some more specialized setups like my HTTP reverse proxy, the arrs etc. Then I keep everything in my inventory and var files. I’m really happy and I really can tear things down and rebuild quickly. One thing to point out is that the compose module for Ansible is basically unusable. I use the docker container module instead. Works well so far and it keeps my containers running without restarting them unnecessarily.
