GBC Explorer Prometheus exporter

Prometheus exporter for various metrics about GBC explorer (https://beacon.gnosischain.com)

Configuration

Validators list (2 options to define them)

• Define specific indexes/publickeys:
  • Create a file called validators.json.
  • Fill that file defining the validators list to generate Prometheus metrics (use validators.json.example as a reference).
• Define deposit keys used to create validators:
  • Create a file called validator_deposit_addresses.json.
  • Fill that file defining the deposit keys (use validator_deposit_addresses.json.example as a reference).

ENV VARIABLES

NOTE: The exporter fetches information from gbc-explorer on every scrape, therefore having a too short scrape interval can produce rate limits.

VARIABLE	Description	Default
EXPORTER_PORT	Port where the exporter will expose metrics.	9877
POLLING_INTERVAL_SECONDS	Frequency to fetch the information from https://beacon.gnosischain.com	600

RUN

Bash

python main.py

Docker

docker pull raulio/gbc-explorer-prometheus-exporter:main
docker run --rm -p 9877:9877 raulio/gbc-explorer-prometheus-exporter:main

Docker-compose

docker-compose up -d .

Metrics

Name	Type	Help
validator_effectiveness	gauge	Validator attestation effectiveness

Resources:

• GBC explorer API: https://github.com/gnosischain/gbc-explorer/blob/master/cmd/explorer/main.go
• Prometheus exporter example: https://trstringer.com/quick-and-easy-prometheus-exporter/