docs: Update info about metrics for 2.6

Also add events.handlers namespace and fix dhall link.
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Matthew Holt 2022-09-20 13:27:27 -06:00
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@ -9,6 +9,20 @@ Caddy server on an embedded device, it's likely that at some point you'll want
to have a high-level overview of what Caddy is doing, and how long it's taking.
In other words, you're going to want to be able to _monitor_ Caddy.
## Enabling metrics
You'll need to turn metrics on. If using a Caddyfile, enable metrics [in global options](/docs/caddyfile/options#metrics):
```caddy
{
servers {
metrics
}
}
```
If using JSON, enable metrics in your [server configuration](/docs/json/apps/http/servers/) by adding `"metrics": {}`.
## Prometheus
[Prometheus](https://prometheus.io) is a monitoring platform that collects