Running Coturn + Promethes + Grafana in Docker

Warning: Don't use it directly on production.

Steps

1. Build coturn image and container

$ cd ./coturn
$ docker build --tag self-coturn:0.1 .
$ docker run -it -P  -p 9641:9641 -p 3478:3478 -p 3478:3478/udp self-coturn:0.1

2. Build prometheus and container

$ cd ./prometheus
$ docker build --tag self-prometheus:0.1 .
$ docker run -it -P  -p 9090:9090  self-prometheus:0.1

You could check whether the http:localhost:9090 is running.
Try the webrtc local connection to produce some coturn metrics and check whether there is any coturn related metrics such as turn_status

3. start grafana container

$ docker run -d --name=grafana -p 3000:3000 grafana/grafana

4. Login grafana console, add prometheus as data source. Don't forget to use http://host.docker.internal:9090 as URL.
   

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Or you could simply run $ docker-compose up