Using the prometheus database for data collection
The prometheus database is used for many projects for data collection. It is relatively easy to set up and use.
For installation, you can follow a guide provided by the prometheus devs.
Important
The part of the API (/api/prometheus/metrics) is not the database server!
The database is always installed on an external host and never on the OpenDTU itself!
Here are some distro-specific guides for linux:
- Debian/Ubuntu/Raspbian: See this guide here (Although there should also be something in the APT repos)
- Archlinux: Archlinux Wiki / Prometheus
Configuring Prometheus to scrape data from the OpenDTU
# /etc/prometheus/prometheus.yml
scrape_configs:
- job_name: 'opendtu'
scrape_interval: 5s # >= Inverter scrape interval
static_configs:
- targets: ['<ip of first opendtu>', '<ip of second opendtu>']
metrics_path: /api/prometheus/metrics