Choria Prometheus File Exporter

Overview

This is a exporter that exports data found in files on disk to Prometheus.

It includes a utility that you can call from your cronjobs and other such tools:

Increment a counter by one:

$ pfe count acme_adhoc_job_runs

Increment it by 10:

$ pfe count acme_adhoc_job_matches --inc 10

Set a gauge to an arbitrary value:

$ pfe gauge acme_adhoc_job_runtime 10

In time we'll include utilities to assist with timing events like pfe observe acme_adhoc_job_runtime /path/to/script.

A companion server runs that uses inotify to detect change in the data files and expose the data.

Installation

RPMs are hosted in the Choria yum repository for el6 and 7 64bit systems:

[choria_release]
name=choria_release
baseurl=https://packagecloud.io/choria/release/el/$releasever/$basearch
repo_gpgcheck=1
gpgcheck=0
enabled=1
gpgkey=https://packagecloud.io/choria/release/gpgkey
sslverify=1
sslcacert=/etc/pki/tls/certs/ca-bundle.crt
metadata_expire=300

Simply installing the RPM and arranging for prometheus-file-exporter service to run is enough, you configure the port to listen on in /etc/sysconfig/prometheus-file-exporter by setting PORT="8080".

Thanks