polkadot-telemetry-scrapper

Reversed engineered scrapper that scrapes specified chain from https://telemetry.polkadot.io, then it creates metrics from the streamed data.

How to Run

Local

Prerequisites

1. docker daemon
2. docker-compose
3. nodejs/npm installed

• Clone repository

git clone https://github.com/mmd-afegbua/polkadot-telemetry-scrapper.git && cd polkadot-telemetry-scrapper

• Install dependencies

npm install

• Create .env file in root directory and add your chain

CHAIN="<your chain here>"

• Run the scrapper on your local

npm run start

Your metrics will be available on http://localhost:8080/metrics

• (Optional) Configure prometheus to scrape your collator/validator if you have it exposed. add this toprometheus/prometheus.yml

  - job_name: 'collator'
    static_configs:
      - targets: ['<collator-endpoint:port>']

• Start up prometheus, grafana and alert manager

docker-compose up

Prometheus endpoint will be available at http://localhost:9090. Grafana endpoint will be on http://localhost:3000. Default username: admin. password: admin.

• Create a grafana test dashboard using the JSON file in grafana/test.json