Networking

TL;DR I upgraded the inter-node networking from 1GbE to 10GbE using Mellanox ConnectX-3 NICs from eBay (~$15-20 each). Two of the three NICs worked immediately. The third needed a firmware flash from 2.33.5220 to 2.42.5000 using mstflint, which required two cold boots to recover from a partially bricked state. All three Proxmox hosts now have 10GbE connectivity via active-backup bonds. I also deployed Security Scanner infrastructure and fixed ARC runner Pod Security Standards. ...

TL;DR Today was the biggest infrastructure day yet. I migrated the entire k3s cluster from a flat network to a proper VLAN architecture: Server VLAN 20 for k3s nodes and services, Storage VLAN 30 for the NAS, and the existing default VLAN 1 for clients. This involved changing IPs on all VMs, updating MetalLB, reconfiguring Traefik, and recovering from an etcd quorum loss when I moved too many nodes at once. I also deployed the media stack (Jellyfin, Radarr, Sonarr, Prowlarr, Jellyseerr) and configured Intel iGPU passthrough infrastructure. ...