Add informational metrics to prometheus endpoint

[ulope]

System information

Geth version: 1.9.23
OS & Version: OSX

Feature request

Please add informational metrics to the prometheus endpoint:

• Chain / network info
• Geth version

For example:

# TYPE chain_info gauge
chain_info{chain_id="5", network_name="goerli"} 1
# TYPE geth_info gauge
geth_info{version="1.9.23-stable", arch="amd64", os="darwin", commit="deadbeef", protocol_versions="63,64,65"} 1

[karalabe]

We'd need to investigate a bit how to expose metadata in Prometheus and InfluxDB. I'm all for surfacing these infos, just have no idea yet what the standard way is. If you have any docs you could point us to, that would be grand.

[no-response]

This issue has been automatically closed because there has been no response to our request for more information from the original author. With only the information that is currently in the issue, we don't have enough information to take action. Please reach out if you have more relevant information or answers to our questions so that we can investigate further.

[ulope]

@karalabe Sorry I missed this.

Here's a (pretty old but still accurate) post on the Robust Perception blog

As well as a sample of some of the exporters / tools I've used in the past that include such a metric:

• Apache Exporter
• Postgres Exporter
• Redis Exporter
• Docker
• node exporter

My example above follows this pattern.

[Ab-hishek]

I would like to work on this issue if this is still required.

[muddlebee]

@karalabe @holiman @MariusVanDerWijden can this be closed ?

MONITORING GETH WITH INFLUXDB AND GRAFANA : https://ethereum.org/en/developers/tutorials/monitoring-geth-with-influxdb-and-grafana/ has been already added.

[muddlebee]

@ulope FYI