Prometheus exporter for Adax.no heaters. Retrieves current and target temperature for each home and room registered and returns in a format that Prometheus can read. Written in Go.

If you are on Debian or Ubuntu (or any of its derivatives), the easiest way to get the exporter running is using my apt repo.

Firstly, install the required dependencies.

sudo apt-get update
sudo apt-get install \
    ca-certificates \
    curl \
    apt-transport-https \
    gnupg \

Then, download the key used to sign the packages and add the repository to your /etc/sources.list.d/ directory.

curl -o /etc/apt/trusted.gpg.d/packages.hejduk.se.gpg https://packages.hejduk.se/apt.gpg
sh -c 'echo "deb https://packages.hejduk.se/hejduk stable main" > /etc/apt/sources.list.d/hejduk.list'

Finally, use apt to update the cache and install the package.

apt update
apt install adax-prometheus-exporter

Once installed, create/open the file /etc/adax-prometheus-exporter/config.yml (if you used the .deb packages, this file should have automatically been created). You may use the config.example.yml as a reference if you are installing manually.

It will look something like this. Fill in the values for the options as required.

---
client_id: "0"
client_secret: ""
port: 8080

If you installed the .deb package, you may start the web app using systemctl.

systemctl enable adax-prometheus-exporter
systemctl start adax-prometheus-exporter

If you have built it manually, you can launch the binary with the following parameters.

adax-prometheus-exporter --config /etc/adax-prometheus-exporter/config.yml

Metrics will be available from http://localhost:8080/metrics. It will look something like this.

room_temperature{home="Home",room="Test"} 21.000000
room_target_temperature{home="Home",room="Test"} 24.000000
room_temperature{home="Home",room="Test2"} 18.000000
room_target_temperature{home="Home",room="Test2"} 17.000000
room_temperature{home="Cottage",room="Living Room"} 22.000000
room_target_temperature{home="Cottage",room="Living Room"} 23.000000

To build the project from the source, make sure you have Go installed (Go 1.17.x is supported by other versions may work).

To just build the executable, use make build.

make build

To build the executable and the .deb packages (includes systemd unit file), just run make.

make

Created and written by Vilhelm Prytz - [email protected].