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pez-infra/docs/hosts/copenhagen-a.md
Rasmus "Pez" Wejlgaard 8f78bbc0d3
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docs update for copenhagen-a (#147) 
* docs update for copenhagen-a

* also update for drift
2026-07-31 22:06:41 +01:00

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copenhagen-a

Proxmox VE hypervisor. Located at my dad's place in Copenhagen as an off-site location — the Copenhagen counterpart to london-a.

Overview
Location Copenhagen
OS Debian 13 (Trixie) with Proxmox VE
Tailscale IP 100.91.240.29
Role Hypervisor (Proxmox VE)
Form factor Minisforum MS-A2 mini PC

Hardware

Component Spec
CPU AMD Ryzen 9 9955HX (16 cores / 32 threads)
Memory 64 GB
Boot disk 1 TB NVMe (Kingston OM8TAP41024K1-A00)

Minisforum MS-A2 mini PC. Small, quiet, and draws minimal power relative to its performance. This replaced the original Lenovo "tiny" desktop (Intel i5-4570T / 16 GB / 500 GB) that used to run the gaming servers directly on bare metal; the host was repaved as Proxmox VE on the new hardware.

Services

Service Port Status Notes
Proxmox VE 8006 Active Web UI — reachable via copenhagen-a.pez.sh (Caddy) or Tailscale IP
Tailscale — Active Mesh networking
node_exporter, systemd_exporter, Alloy — Active Observability baseline (Ansible-managed)

Storage

Unlike london-a, this host does not mount london-b's CIFS share — it's not worth the WAN/Tailscale hop from Copenhagen for VM storage. Only local storage is configured (proxmox_ve_mount_cifs_storage: false in host_vars/copenhagen-a.yml).

Storage ID Type Backing
local-lvm LVM-Thin Local boot disk
local Directory ISO/template/backup storage

VMs

Runs a mix of always-on VMs (Kubernetes control plane, a general-purpose workspace, Minecraft) plus Karpenter-managed Kubernetes worker nodes that scale up/down on demand.

Ansible

Part of the proxmox_hosts group alongside london-a, sharing the proxmox_ve role:

  • Swaps the enterprise apt repo for pve-no-subscription so updates work without a paid subscription
  • Patches proxmoxlib.js to suppress the subscription nag dialog
  • Restricts the web UI to the tailscale0 interface via UFW
  • Skips the london-b CIFS mount (proxmox_ve_mount_cifs_storage: false) — local storage only

Networking

Connected directly to the ISP router's built-in switch. Symmetrical 500 Mbit connection.

History

copenhagen-a used to run gaming servers directly on bare metal: a Minecraft server (itzg/minecraft-server, Docker) and a WoW 1.12 (Vanilla) MaNGOS Zero private server (native systemd + local MariaDB). Both were decommissioned and the host was repaved as Proxmox VE — the Tailscale identity (and IP) changed as part of the reinstall. The old static public IP used for direct game-client connections (Minecraft server list, WoW realm list) is no longer needed since nothing here accepts direct client connections anymore.