Go prometheus exporter + grafana

This is a simple Go project to exemplify the use of metrics with Prometheus exporter and observability with Grafana.

Run

1. Start the containers with docker-compose up
2. Go's default metrics will be exported at http://localhost:1234/metrics
3. Prometheus will be running at http://localhost:9090/
4. Grafana will be running at http://localhost:3000 and set up your dashboards
5. To increment the custom counter, access http://localhost:1234/count