Running k3s on Proxmox: A Multi-Node Cluster with a VM and LXC Worker — The Hard Way and Back

A practical guide covering installation, troubleshooting, and the real story of getting k3s to run inside an LXC container Introduction Kubernetes is powerful but notorious for being heavy. k3s, the lightweight Kubernetes distribution from Rancher, fixes that. It strips out legacy APIs, bundles containerd, and ships as a single binary under 100MB. It is perfect for homelabs, edge deployments, and resource-constrained environments. (more about k3s: https://traefik.io/glossary/k3s-explained/ ) Thi