Demonstration of Vector.dev+Loki+Grafana stack

1. Run make up to start docker environment.

2. Add Loki data source at http://127.0.0.1:3000/datasources/new. Set url to http://loki:3100, other parameters left as default.

3. Open Explorer and select Loki Data Source.

4. Run example query:

   {event="log"}
   | json
   | json_log_level=~"DEBUG|INFO|WARNING|ERROR|CRITICAL"
   | line_format "{{.json_log_level}} \t {{.json_request_id}} \t {{.json_message}}"
   

5. make clean removes all containers of the project.