Enable Prometheus metrics in Caddy

Wed, 02 Mar 2016 07:53:58 +0000

The Caddy webserver is a modern webserver written in Go. I like it because I can easily extend it by writing some middleware (in Go). One of the things missing is metrics, which prompted me to implement enough metrics to make me happy.

Using this is relatively straight forward, but you’ll need to compile Caddy yourself and add this middleware.

Setup

(Assuming you have Go installed), first get the goodies:

Caddy:: go get github.com/mholt/caddy
Caddyext:: This is needed to compile in the new middleware, go get github.com/caddyserver/caddyext
Caddy-prometheus:: go get github.com/miekg/caddy-prometheus

Then, with caddyext register the new middleware:

Monitoring with SSH and Prometheus

Wed, 24 Feb 2016 11:35:01 +0000

I just wanted to see some qps metrics from BIND9.

This is a bit of hand wavey post on how to set up remote monitoring with Prometheus, Grafana and SSH tunnels.

Initially I just wanted to monitor BIND9 because it actually exports some reasonable metrics, that can be made usable with bind_exporter. But of course BIND is BIND so this is different in BIND 9.10 which is what I have on my server…. sigh. @jpmens also has some interesting tidbits about this BIND9 feature.

Prometheus on Miek Gieben

Enable Prometheus metrics in Caddy

Setup

Monitoring with SSH and Prometheus