Does anyone have kopano-prometheus-exporter running?

burgessja

I stumbled across this in the repo: https://stash.kopano.io/projects/KC/repos/prometheus-kopano-exporter/browse

Most of the Prometheus exporters that I have used are very simple, they are a single binary that exposes data in a format that Prometheus is expecting on a port that you set. Looking at this exporter, it seems like Kopano Server, Dagent, and Spooler need to be configured to send data to a unix socket at /run/prometheus-kopano-exporter/exporter.sock some how, but I have not seen any documentation on how that works? Does anyone have this running?

fbartels

Hi @burgessja,

the project you’ve found is something that we implemented for a few larger customer projects. Re-reading the readme first I must say I missed the important bit as well, but it has actually everything you need:

The kopano-server or other deamons require the statsclient_url to be set to the exporter socket and set statsclient_interval to a lower value than the prometheus scraping interval.

So you only need to add these two options (with the right values) to server.cfg, spooler.cfg and dagent.cfg (or put this into a single file and include this on the already named files).

This is the description of the named config options (from the dagent.cfg man-page):

   statsclient_url
       A HTTP URL or filesystem-local socket specification for a kopano-
       statsd compatible web service that ingests service statistics such
       as memory usage or mail processing counters.

       Example: https://my.local.org/collector.php

       Default: unix:/var/run/kopano/statsd.sock

   statsclient_interval
       The time interval at which the statsd service is to be contacted, in
       seconds.  When "statsclient_url" points to a kopano-statsd instance,
       the value should be 60 (for now), because its rrdtool archives are
       set to expect data at this rate.

       Default: 0 (submission service is deactivated)

burgessja

Thats what I get for working at midnight, I’ll test it out and see how it works.

I have a customer that only has about 20 users, but they process an incredible amount of emails.

Thanks!

burgessja

@fbartels Looks like it working! I’ll have to finish setting it up with the service file and get it talking to Prometheus later (I run Prometheus on a private ZeroTier network to keep it secure), but it seems to be pulling data.

I forgot, i’m not really familiar with Go, is there a better want to build the binary for this, or is installing Go and running the makefile the expected way?

Thanks!

fbartels

@burgessja yes, that is pretty much the expected way unless there would be official builds from us. The good thing about go is that you could compile it on a different system (or in a container) and just copy the resulting binary to your target system.