Can Proxmox with some containers/VMs address your needs?
Its what I'm running for a media server (a VM) and some containers for things like Pihole and Syncthing.
this post was submitted on 21 Jun 2024
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I don't know, that's why I'm here for advice lol. I've never had to tackle "which OS?" before.
Proxmox was the answer for me. OpenMediaVault in a VM for NAS, LXC containers for things that need GPU access (Plex and frigate). Hell, I even virtualized my router. One thing I probably should have done was a single docker host and learn podman or something similar. I ended up with 8 or 9 VMs that run 8 or 9 dockers. It works great, but it's more to manage.
You'll want 2 network cards/interfaces- one for the VMs and another for the host. Power usage is not great using old gaming parts. Discrete graphics seem to add 40 watts no matter what. A 5600G or Intel with quicksync will get the job done and save you a few bucks a month. I recently moved to a 7700x and transcode performance is great. Expect 100-150 watts 24/7 which costs me $10-15 month. But I can compile ESPHome binaries in a few seconds 🤣
I ended up with 8 or 9 VMs that run 8 or 9 dockers. It works great, but it's more to manage.
It's more overhead on the cpu, but it's so easy.
K3s! You could even reuse your pis in the cluster.
I would deploy it to your new server, setup your CSI (e.g longhorn its pretty simple), find a helm chart for one of the apps and try deploying it.
I understood like four of the words in your comment so I'm going to go ahead and assume that solution is too advanced for me.
K3s is an embedded Kubernetes distribution by a Californian company called Rancher, which is owned by the Enterprise Linux Giant SUSE.
Kubernetes works on the idea of masters and workers. I.e. you usually cannot bring up ("schedule") containers (pods) on the master nodes (control nodes for brevity). K3s does away with such limitations, meaning you can just run one VM with k3s and run containers on top.
Although if Kubernetes is too hard I would push you towards Podman.
I do not know the extrapolation for CSI but Longhorn is a storage backend of Kubernetes for persistent storage across nodes