VM120 is the K3s control-plane (server), VM121/122 are agents (workers).
K3s v1.33.6 with Longhorn storage. Running services: Traefik, CodiMD,
Adminer, HTTPbin, OpenGist, PostgreSQL, Vaultwarden.
Also updated PVE descriptions for VM120/121/122.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Include cluster architecture overview (nodes, VMs, storage, networking,
backup strategy) and Proxmox VE API usage guide with token credentials.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>