nsd_exporter

Prometheus exporter for NSD (Name Server Daemon)

Quickstart

nsd_exporter will try to autodetect configuration on most Linux distros by reading /etc/nsd/nsd.conf.

You will need to launch the process as a user that has permissions to the NSD control certificate and private key (default /etc/nsd/nsd_control.key, /etc/nsd/nsd_control.pem)

Examples

# Defaults listening to 127.0.0.1:8080/metrics
% nsd_exporter

# Specify a different port to listen on
% nsd_exporter -listen-address :9167

# Specify an alternate configuration location to autodetect from
% nsd_exporter -config-file /opt/nsd/nsd.conf

# Manually specify NSD socket and certificates
% nsd_exporter -ca /etc/nsd/nsd_server.pem -key /etc/nsd/nsd_control.key -cert /etc/nsd/nsd_control.pem -nsd-address 127.0.0.1:8952

Add/Modify metrics

If nsd has a new version with new metrics or you want to change the description of the existing metrics, you can make changes to the metrics that nsd_exporter emits by using your own metrics config file.

1. Download the metrics config from config/config.yaml
2. Make any additions or modifications you want.
3. Load it by running nsd_exporter -metric-config my-custom-config.yaml. This will use your config instead of the internal metrics config file.

Building

Making config changes

This is only needed if you want to modify the embedded metric configuration file.

Install go-bindata.

go install github.com/go-bindata/go-bindata/go-bindata@latest

Make any metric config modifications to config/config.yaml.

Run go generate to generate a new embedded config file. Don't forget to check it in.