e3caa1dcf7
Introduce a new flag that can be used to expose each DHCP lease as a specific metric. Given the high cardinality of these metrics, exposition of lease information is disabled by default. This feature takes cues from node_exporter collectors which are disabled by default, like the `processes` or `systemd` collectors for instance. Typically, high-cardinality metrics are against prometheus best-practices but for smaller networks (like home networks) these features can be quite powerful.
49 lines
1.2 KiB
Markdown
49 lines
1.2 KiB
Markdown
# dnsmasq exporter
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[](https://github.com/google/dnsmasq_exporter/actions)
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dnsmasq_exporter is an exporter for [Prometheus](https://prometheus.io/),
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allowing you to monitor/alert on the number of DHCP leases and various DNS
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statistics.
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The minimum required version of dnsmasq is 2.69, which added support for
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querying the statistics via DNS.
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See also the “cache statistics” section in
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https://manpages.debian.org/stretch/dnsmasq-base/dnsmasq.8.en.html#NOTES
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This is not an official Google product.
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## Installation
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``` shell
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go get -u github.com/google/dnsmasq_exporter
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```
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## Usage
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Place `dnsmasq_exporter.service` in
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`/etc/systemd/system/dnsmasq_exporter.service`, then enable and start the
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service using:
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```shell
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systemctl daemon-reload
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systemctl enable --now dnsmasq_exporter
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```
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### Alternative usage
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```shell
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docker build -t dnsmasq_exporter .
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docker run --restart=unless-stopped --net=host dnsmasq_exporter
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```
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Then, add the endpoint to your Prometheus configuration file:
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```yaml
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scrape_configs:
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- job_name: dnsmasq
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static_configs:
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- targets: ['localhost:9153']
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```
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