Docs/Proxmox Cluster

~/Infrastructure

The majority of our infrastructure are VMs in the Proxmox cluster, so everything can be highly-available (meaning VMs can jump to another Proxmox node if one goes down).

In the panel for each VM in the webUI, make sure to enable the guest agent; Debian will auto install the QEMU guest agent on first install when it detects being run inside a VM.

Proxmox Nodes

The nodes in the cluster include:

Nodes

IP	Node Name
10.10.1.20	Kurisu
10.10.1.21	Okabe**
10.10.1.22	Daru
10.10.1.23	Luka
10.10.1.24	Mayuri
10.10.1.25	MrBraun*

* = HP Server

** = currently offline; running Windows 10 LTSC temporarily to poke around with HGST Drives

Note that all these addresses are static, and must be changed manually on each host (Proxmox doesn't currently support DHCP). The process is loosely outlined by the comments here.

These are also listed in Servers since they're all physical servers in the GLRC rack.

Virtual Machines

The VMs in the cluster include:

VMs

IP	VM Name
10.10.1.8	Huskybot
10.10.1.9	LUG IRC Server
10.10.1.15	Homepage
10.10.1.16	This MediaWiki instance
10.10.1.70	Socksproxy
10.10.1.76	noah courseproject
10.10.1.170	hashtopolis
10.10.1.172	badapple
10.10.1.202	Main-MC
10.10.1.212	Velocity
10.10.1.224	Allen's Gaming VM
10.10.2.229	Kube-Minecraft

You can see all VMs listed in the Proxmox WebUI.

All IPs should be configured via DHCP on OPNsense and not assigned statically on the VM.

Updates

Updating Nodes

Proxmox runs on top of Debian, so the updating process is the mostly same.

1. apt update && apt upgrade
2. (Optional) Remove the annoying unlicensed popup from web dashboard: sed -Ezi.bak "s/(Ext.Msg.show\(\{\s+title: gettext\('No valid sub)/void\(\{ \/\/\1/g" /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js && systemctl restart pveproxy.service
3. (Optional) Manually migrate all VMs to other Proxmox nodes first; Proxmox doesn't do this automatically and all the VMs running on the host when it reboots will go offline until the host comes back up
4. (Optional but recommended) reboot the node

For the yearly major version bumps, you may need to run apt update && apt upgrade, followed by apt dist-upgrade; This is the process on Debian, but I haven't tested it on Proxmox.

Check the Proxmox wiki's 'Upgrade' category for specific instructions when the time comes.

Updating VMs

All VMs run Debian to keep things homogenous and easy to upgrade/automate, except a few Windows VMs like Allen's scuffed Win10 LTSC gaming VM; Those are presumed self-managed.

The update process is the same as any Debian system:

1. apt update && apt upgrade
   1. If the kernel or systemd get updated, it's a good idea to reboot
2. For major version bumps (I think there's one each year?), you need to run the aforementioned apt update && apt upgrade, followed by apt dist-upgrade

Updates need to be automated with Ansible at some point.