How to install Haproxy and Traefik on Proxmox VM with CentOS 9, 10, 11

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Скриншот настройки балансировщика нагрузки HAProxy и Traefik на виртуальной машине Proxmox с CentOS

How to Install HAProxy and Traefik on a Proxmox VM with CentOS 9, 10, or 11

HAProxy is a high-performance TCP/HTTP load balancer widely used for distributing traffic across multiple backend servers. Traefik is a modern reverse proxy and load balancer optimized for dynamic environments, supporting automatic SSL management. This guide provides step-by-step instructions for installing and configuring HAProxy and Traefik on a CentOS 9, 10, or 11 virtual machine running on Proxmox.

Step 1: Update Your System

Before installing any software, update your CentOS system to ensure all packages are up to date.

sudo dnf update -y

Installing HAProxy

HAProxy is available in the default CentOS repositories.

  1. Install HAProxy

sudo dnf install haproxy -y

  1. Configure HAProxy

The main configuration file is located at /etc/haproxy/haproxy.cfg. Open the file for editing.

sudo nano /etc/haproxy/haproxy.cfg

Add or modify the configuration as needed. Here is an example of a basic HAProxy configuration:

frontend http_front
bind *:80
default_backend http_back

backend http_back
balance roundrobin
server server1 192.168.1.2:80 check
server server2 192.168.1.3:80 check

Save and exit the file.

  1. Start and Enable HAProxy

Start HAProxy and enable it to start automatically on boot.

sudo systemctl start haproxy
sudo systemctl enable haproxy

To verify that HAProxy is running correctly, check its status.

sudo systemctl status haproxy

  1. Configure the Firewall

Allow HTTP traffic through the firewall.

sudo firewall-cmd –permanent –add-service=http
sudo firewall-cmd –reload

Installing Traefik

Traefik can be installed using Snap.

  1. Install Snapd

sudo dnf install epel-release -y
sudo dnf install snapd -y

Enable and start the Snap service.

sudo systemctl enable –now snapd.socket

Create a symbolic link for Snap.

sudo ln -s /var/lib/snapd/snap /snap

Log out and log back in to apply changes.

  1. Install Traefik

sudo snap install traefik

  1. Configure Traefik

Create the configuration directory.

sudo mkdir -p /etc/traefik

Create the main configuration file.

sudo nano /etc/traefik/traefik.yml

Add the following configuration:

entryPoints:
web:
address: “:80”

providers:
file:
filename: /etc/traefik/dynamic_conf.yml

Save and exit the file.

Create the dynamic configuration file.

sudo nano /etc/traefik/dynamic_conf.yml

Add the following content:

http:
routers:
my-router:
rule: “Host(example.com)”
service: my-service

services:
my-service:
loadBalancer:
servers:
– url: “http://192.168.1.2“
– url: “http://192.168.1.3“

Save and exit the file.

  1. Start Traefik

To run Traefik using Docker, use the following command:

docker run -d -p 80:80 -p 8080:8080 -v /etc/traefik/traefik.yml:/etc/traefik/traefik.yml -v /etc/traefik/dynamic_conf.yml:/etc/traefik/dynamic_conf.yml traefik:v2.4

Conclusion

By following these steps, you have successfully installed and configured HAProxy and Traefik on a CentOS virtual machine running on Proxmox.

  • HAProxy is configured to balance HTTP traffic across multiple backend servers.
  • Traefik is installed and set up as a modern reverse proxy, ready to handle dynamic environments.

Ensure that your firewall rules allow necessary traffic and review the logs for troubleshooting. You can now integrate SSL certificates and enhance security as needed.

Information reviewed and updated: August 28, 2026.

Published by: REVOLD BLOG – blog.revold.us
Powered by AIR RISE INC & REVOLD AI
Sponsored: CORPIUS

Author: Roman Kravchina

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