Install PiHole Exporter

install_pihole_exporter

# https://www.observability.blog/monitoring-pi-hole-with-prometheus/
# https://github.com/eko/pihole-exporter

sudo curl https://github.com/eko/pihole-exporter/releases/download/v0.3.0/pihole_exporter-linux-arm --output /usr/local/bin/pihole_exporter

sudo useradd -r -s /bin/false pihole_exporter

# sudo chgrp pihole_exporter /usr/local/bin/pihole_exporter
sudo chown pihole_exporter:pihole_exporter /usr/local/bin/pihole_exporter

sudo chmod +x /usr/local/bin/pihole_exporter

sudo touch /etc/systemd/system/pihole_exporter.service

# init
[Unit]
Description=pihole_exporter
Wants=network-online.target
After=network-online.target

[Service]
ExecStart=/usr/local/bin/pihole_exporter
# WorkingDirectory=/usr/local/bin/pihole_exporter
Restart=always
User=pihole_exporter

[Install]
WantedBy=multi-user.target
# end

sudo systemctl daemon-reload
sudo systemctl enable pihole_exporter
sudo systemctl start pihole_exporter

curl localhost:9617/metrics | less