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prometheus docs for developers

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alex.sharov 2020-10-24 10:15:53 +07:00
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cmd/prometheus/Readme.md
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@ -5,11 +5,25 @@ Go to: [localhost:3000](localhost:3000), admin/admin
List of hosts and ports to collecting metrics is in: `./cmd/prometheus/prometheus.yml`
Env variables:
- `XDG_DATA_HOME` re-defines default prometheus and grafana databases folder.
- `XDG_DATA_HOME` re-defines default prometheus and grafana databases folder.
- `TG_PROMETHEUS_CONFIG` path to custom `prometheus.yml` file. Default is: `./cmd/prometheus/prometheus.yml`
- `TG_GRAFANA_CONFIG` path to custom `grafana.ini file`. Default is: `./cmd/prometheus/grafana.ini`
To add custom TG host: copy `./cmd/prometheus/prometheus.yml`, modify, pass new location by:
`TG_PROMETHEUS_CONFIG=/new/location/prometheus.yml docker-compose up prometheus grafana`
## For developers
#### How to update dashboards
1. Edit dashboard right in Grafana UI as you need. Save.
2. Go to "Dashboard Settings" -> "JSON Model" -> Copy json representation of dashboard.
3. Go to file `./cmd/prometheus/dashboards/turbo_geth.json` and past json there.
4. Commit and push. Done.
#### How to add new metrics
See example: `ethdb/object_db.go:dbGetTimer`
For gRPC metrics search in code: `grpc_prometheus.Register`