Selfhosted
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
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Why not do both ? As I understand it, to do kubernetes clusters, you must have at least 3 hosts. They don’t need to be 3 different physical hosts: they could be VM (hosted on Proxmox).
Proxmox also having a very strong implementation of ZFS, then it could be used as the storage « host », and it gives you also the option to do snapshots of the VM (and the storage pool), as well as replication/etc.
A k8s cluster can run on a single host if that's what you want. I'm not sure if it would be worth the virtualisation cost to run it on VMs in the middle as well. If you were only ever going to run on a single host I probably wouldn't use k8s though, I would just run containers. 🤷♂️
That is fine for training purposes, but not for real hosting. You typically don't guard against software crashes, but against hardware failures/outages. And this it not given with all three nodes on the same physical system.
In that case you can simply skip the HA setup and go with a single node. Or not use k8s at all and just manage containers using ansible and systemd or whatever.
You only need 3 host if you want to load-balance
etcd, which I think totally unnecessary for selfhosting purpose. Some downtime when updating kubernetes is acceptable in selfhosted environment for personal purpose.