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A Prometheus exporter for PI-Hole's Raspberry PI ad blocker

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README.md

PI-Hole Prometheus Exporter

This is a Prometheus exporter for PI-Hole's Raspberry PI ad blocker.

Grafana dashboard is available here.

Prerequisites

Installation

Download binary

You can download the latest version of the binary built for your architecture here:

Architecture i386 [ Darwin / Linux / Windows ]
Architecture amd64 [ Darwin / Linux / Windows ]
Architecture arm [ Linux ]

From sources

Optionally, you can download and build it from the sources. You have to retrieve the project sources by using one of the following way:

$ go get -u github.com/eko/pihole-exporter
# or
$ git clone https://github.com/eko/pihole-exporter.git

Then, build the binary (here, an example to run on Raspberry PI ARM architecture):

$ GOOS=linux GOARCH=arm GOARM=7 go build -o pihole_exporter .

Usage

In order to run the exporter, type the following command (arguments are optional):

$ ./pihole_exporter -pihole_hostname 192.168.1.10 -pihole_password azerty

2019/05/09 20:19:52 ------------------------------------
2019/05/09 20:19:52 -  PI-Hole exporter configuration  -
2019/05/09 20:19:52 ------------------------------------
2019/05/09 20:19:52 PIHoleHostname : 192.168.1.10
2019/05/09 20:19:52 PIHolePassword : azerty
2019/05/09 20:19:52 Port : 9311
2019/05/09 20:19:52 Interval : 10s
2019/05/09 20:19:52 ------------------------------------
2019/05/09 20:19:52 New Prometheus metric registered: domains_blocked
2019/05/09 20:19:52 New Prometheus metric registered: dns_queries_today
2019/05/09 20:19:52 New Prometheus metric registered: ads_blocked_today
2019/05/09 20:19:52 New Prometheus metric registered: ads_percentag_today
2019/05/09 20:19:52 New Prometheus metric registered: unique_domains
2019/05/09 20:19:52 New Prometheus metric registered: queries_forwarded
2019/05/09 20:19:52 New Prometheus metric registered: queries_cached
2019/05/09 20:19:52 New Prometheus metric registered: clients_ever_seen
2019/05/09 20:19:52 New Prometheus metric registered: unique_clients
2019/05/09 20:19:52 New Prometheus metric registered: dns_queries_all_types
2019/05/09 20:19:52 New Prometheus metric registered: reply
2019/05/09 20:19:52 New Prometheus metric registered: top_queries
2019/05/09 20:19:52 New Prometheus metric registered: top_ads
2019/05/09 20:19:52 New Prometheus metric registered: top_sources
2019/05/09 20:19:52 New Prometheus metric registered: forward_destinations
2019/05/09 20:19:52 New Prometheus metric registered: querytypes
2019/05/09 20:19:52 New Prometheus metric registered: status
2019/05/09 20:19:52 Starting HTTP server
2019/05/09 20:19:54 New tick of statistics: 648 ads blocked / 66796 total DNS querie
...

Available CLI options

# Interval of time the exporter will fetch data from PI-Hole
  -interval duration (optional) (default 10s)

# Hostname of the Raspberry PI where PI-Hole is installed
  -pihole_hostname string (optional) (default "127.0.0.1")

# Password defined on the PI-Hole interface
  -pihole_password string (optional)

# Port to be used for the exporter
  -port string (optional) (default "9311")

Available Prometheus metrics

Metric name	Description
pihole_domains_being_blocked	This represent the number of domains being blocked
pihole_dns_queries_today	This represent the number of DNS queries made over the current day
pihole_ads_blocked_today	This represent the number of ads blocked over the current day
pihole_ads_percentage_today	This represent the percentage of ads blocked over the current day
pihole_unique_domains	This represent the number of unique domains seen
pihole_queries_forwarded	This represent the number of queries forwarded
pihole_queries_cached	This represent the number of queries cached
pihole_clients_ever_seen	This represent the number of clients ever seen
pihole_unique_clients	This represent the number of unique clients seen
pihole_dns_queries_all_types	This represent the number of DNS queries made for all types
pihole_reply	This represent the number of replies made for all types
pihole_top_queries	This represent the number of top queries made by PI-Hole by domain
pihole_top_ads	This represent the number of top ads made by PI-Hole by domain
pihole_top_sources	This represent the number of top sources requests made by PI-Hole by source host
pihole_forward_destinations	This represent the number of forward destinations requests made by PI-Hole by destination
pihole_querytypes	This represent the number of queries made by PI-Hole by type
pihole_status	This represent if PI-Hole is enabled