> ## Documentation Index
> Fetch the complete documentation index at: https://docs-v2.ard.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Consul & Traefik on cluster-n03 / cluster-n04

> Consul server agents on the n03/n04 databases cluster and how Traefik uses them.

## Consul role in the cluster

Both `cluster-n03` and `cluster-n04` run **Consul server agents**. These form part of the wider Consul server cluster used for:

* Service discovery
* Configuration / key-value storage
* Integrations with tools like **Traefik**

## Consul on cluster-n03

* **Service**: `consul.service` (enabled, active)
* **Binary / mode** (from systemd command):
  * `/home/consul/consul agent -server`
  * `-config-dir=/home/consul/consul-config/`
  * `-data-dir=/home/consul/consul-data/`
  * `-node=node03.cluster.devops.arabiaweather.com`
  * `-bind=94.130.9.47`

There is no `/etc/consul.d` directory; configuration is kept under `/home/consul/consul-config/`.

## Consul on cluster-n04

* **Service**: `consul.service` (enabled, active)
* **Binary / mode**:
  * `/home/consul/consul agent -server`
  * `-config-dir=/home/consul/consul-config/`
  * `-data-dir=/home/consul/consul-data/`
  * `-node=node04.cluster.devops.arabiaweather.com`
  * `-bind=94.130.88.29`

Same layout as `cluster-n03`, with node/bind addresses adjusted.

## Traefik

On both nodes:

* No local Traefik binary is installed (`traefik` and `/usr/local/bin/traefik` are missing).
* There is no `/etc/traefik` configuration directory.

That means Traefik instances live **elsewhere** (e.g. on edge nodes or another cluster) and use this Consul cluster as a **control plane**, reading service definitions and configuration from Consul.

## Useful commands

```bash theme={null}
ssh cluster-n03
systemctl status consul

ssh cluster-n04
systemctl status consul
```

For more detailed Consul behavior, consult the central Consul / Traefik documentation and configuration repositories.