Caddy monitoring with Zabbix

There is a way to monitor Caddy with Prometheus, but my setup is using Zabbix and I could not find a ready made template for Caddy, so I made one. The template uses HTTP agent to get the data from exposed Caddy metrics.

Enable Caddy metrics

Caddy documentation

Enable metrics in Caddyfile and expose them on port 8080 on the /metrics path:

When exposing metrics on a different port, make sure that port is exposed also in docker container.

{
  servers {
    metrics
  }
}

:8080 {
  metrics /metrics
}

Zabbix

Created on Zabbix ver. 7.2

Import template

Download the template file zabbix-caddy.yaml from my Github repo.

Navigate to Data collection -> Templates and click Import in top right corner in Zabbix.

Choose the downloaded file to import and click Import.

Using template

There are three macros to set up the template:

• {$CADDY.HOST} - default: 127.0.0.1
• {$CADDY.PATH} - default: /metrics
• {$CADDY.PORT} - default: 8080