ProxLB at The Dutch Proxmox Day 2025

(2025-07-29):
Oh, it’s that time of year again! On September 25th, 2025, we’re heading to Ede, Netherlands for the Dutch Proxmox Day 2025. The Dutch Proxmox Day is a yearly conference fully focused on everything around Proxmox. If you’re working with Proxmox VE or just curious about what’s possible, this is the event to be at.

This event is organized by Tuxis B.V., a Dutch company deeply involved in the Proxmox community. Admission? Completely free, thanks to the amazing sponsors CT and KPN.

What to Expect

This year’s speaker lineup is packed with well-known names:

From technical deep-dives to real-world cluster challenges, you’ll hear firsthand how Proxmox is being used across industries – from data centers to satellites.

A Sneak Peek: ProxLB – Smarter Clusters for Proxmox

Okay, here’s something I’m personally excited about: this year’s conference will feature a talk on my personal project ProxLB, my own solution to a big gap in the Proxmox world: automated workload balancing.

What is ProxLB?

ProxLB (short for Proxmox Load Balancer) is a lightweight, policy-driven tool for automatically distributing VMs and containers across your cluster nodes. Think of it as Proxmox’s answer to VMware’s DRS (Distributed Resource Scheduler) built in a flexible, open, and modular way. You can also find some more insights about ProxLB on my personal project page.

Features of ProxLB

Dynamic Load Balancing – Automatically detects when a node is overloaded and shifts VMs/CTs to balance CPU, RAM, and I/O across the cluster.
Affinity / Anti-Affinity Rules – Want some VMs to stick together? Or keep certain ones apart (e.g. for HA or compliance reasons)? ProxLB supports both! Also pinning VMs to a host or a group of hosts, just like settings nodes to maintenance is supported.
Rule-Based Placement – Define your own scheduling rules using simple YAML. Think: “All database VMs should prefer SSD nodes” and let ProxLB handle the logic.
Pluggable Architecture – Integrates smoothly with existing Proxmox clusters, with no need to replace anything. It runs alongside your existing setup using the API.

ProxLB solves this without locking you into heavy commercial tools or complicated orchestration layers. It’s lightweight, open-source, and made for real-life Proxmox use cases.

Why You Should Come

Free admission
Real tech talks — not just sales pitches
Meet the Proxmox core team and other power users
Talk of ProxLB and a chance to ask questions directly

Whether you’re just getting started with Proxmox or managing large production clusters for years, you’ll leave with new ideas, tools, and connections. Sounds interesting? Here you can find more information and also signup for the event! See you there!